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National Aeronautics and 
Space Administration 

Lyndon B. Johnson Space Center 

Houston. Texas 77058 



STS-8 CHANGE-OP-SHIFT BRIEFING p7j 8/30/83 5:30 am Page 1 

PAO Good morning, Gary Greene the ascent flight 

director is here to give you a summary of the shift in the 
mission control center, and Gary hau to double back on the 
planning shift in about 7 hours so we'll turn it over to him 
right now. 

GREENE Okay, I guess you know the most exciting thing that 

happened on the shift was the weather watch prior to launch. We 
took over and the weather radar was all greens and yellows and 
reds and it appeared to be getting worse for most of the night. 
We had some hope that the weather would start disipating and then 
moving off to the south of the runway and sure enough, round 
about our planned liftoff of 6il5 zulu, that's precisely what 
happened. There was some concern at the planned liftoff time 
that there was some precipatation in the area and Bob Crippen was 
flying the STA and confirmed that there was a little 
precipatation and that it was disapating rapidly. We had a 34 
minute, launch window available to us and the Cape in conjunction 
with all the players In the game opted to use that launch window 
to take what was an exceptable situation and turn it into a much 
better situation. We got off the ground at 6:32 which is about 
17 minutes late. It was half the launch window, we had enough 
time to work with if any problems developed after the time that 
we picked up the count. The ascent went flawlessly, the plots In 
the MOCR, plotted right up to ground track as well as you can 
hope for. One thing to note on this launch, we have added some 
software to the onboard computer that compensates for any 
deviations in the thrust that we get out of the solid rocket 
boosters and the way we compensate is that we have a thrust 
bucket that controls the loading on the vehicle as we go though a 
max q and we adjust that thrust bucket, either higher or lower to 
compensate for any dispersions in the SRB's. We were planning 
for 70 percent thrust bucket, we hit about 69 percent In the 
thrust bucket, which says that if anything we were slightly hot 
on SRB performance so we let off on the mains to compensate for 
that but essentially we had a perfectly nominal first stage and 
second stage. The times that we planned pref light, we tracked 
through the flight and we were running maybe 3 to 4 seconds late 
over the estimated times that we came out, prefllght. We got the 
OMS 1 burn off, the OMS 2 burn off on time. Delta V's of those 
if anybody's Interested was 237, for the OMS 1 burn an^ 197 for 
the OMS 2 burn. The SRB's have been located, they're in the 
water, I hear the recovery crew's are waiting for daybreak before 
they begin their retrieval operation. The on orbit time line the 
crew was right on the flight plan all the way through, really 
rather uneventful, perhaps you heard there's some concern about 
number 2 CIRC pump In the hydraulic system. Dan Brandensteln 
reported some trouble trying to start that CIRC pump. We left 
the CIRC pump off. It's not required for the flight and we 
figured that we'd analyzed the data from that attempted start and 
see what the signature looked like during the crew's attempt to 
start It. It was done during an LOS period. The highlight of 

STS-8 CHANGE-OF-SHIFT BRIEFING p7j 8/30/83 5:30 am Page 2 

the shift has got to be that first tors pass, they said we were 
going to go from Hawaii to the TDRS and sure enough we had a 30 
second LOS period to accomplish the handover and once we did the 
comm was as good as any comm that we've had during the program. 
And that's really all there is to report on the shift. 
Everything is ops normal, the crew is responding well, working 
well. The vehicle seems to be in good shape. 

PAO Okay, any questions? Wayne Dolcefino, KTRH. 

DOLCEPINO There was a moment about an hour or so ago when you 
apparently lost downlink on TDRS, was that just something that 
had to do with attitude of the Shuttle or was there something 
else there? 

GREENE We lost downlink I believe, it was something like 

10 minutes early in the pass and the guys were looking at the 
cause of that, it might have been an attitude problem but they'll 
be analyzing that. 40 out of 52 minutes isn't bad for the first 
wack at it. 

DAVID DOWLES CBS How will the delay in launch affect the rest 
of the crew's schedule in terms of sleep time and inevitablly in 
terms of landing. Will everything be staggared 17 minutes? 

GREENE 17 minutes, yes. 

DOWLES Even the landing? 

GREENE Yes, yes, because the landing js a Earth r-alative 

problem, as long as you stay on the pad, you're rotating with the 
Earth and the whole problem just shifts by whatever the delta T 
and the lift off time is. 

PAO Paul, do you have a question. Okay. Any other 

questions? I understand there are no questions at the other 
centers so thank you very much. 


STS-8 CHANGE-OF-SHIFT BRIEFING p8ja 8/30/83 2:00 p.m. PAGE 1 

PAO Good afternoon. Welcome to the second change-of- 

shift briefing from STS-8. Hopefully, it will be as short as the 
one this morning, which was a record 5 minutes. What in the 
world was that? Hal, why don't you run over your log of the past 
9 hr. 

H, DRAUGHON Okay. I came on shift at roughly 3 hr elapsed and 
took over from the Ascent Team, We went through a fairly nominal 
shift throughout. I'll try to pick up some of the issues that 
you were probably told about. I did not hear the first shift 
debriefing, so if I miss something, you'll have t.o just pursue 
that area and I will come back and talk to it, but the only real 
problem, real failure that we've had so far is in the hydraulic 
circ pump in number 2. It looks as though that pump has actually 
failed. It's: somewhere in the dc/ac converter lock in that 
particular unit. The system would be required, the main purpose 
of the circulation pump is to circulate fluid down through the 
landing gear area of the vehicle for chermal management when 
you're flying some real cold attitudes as some missions 
dictate. This particular mission has a cold f^anopy, what's 
called a cold canopy test, on it where we fly with the tail of 
the vehicle towards the Sun and during a 1 revolution per orbit 
or roll. We flew an attitude similar to that on STS-3 for longer 
than we plan to fly it on this flight, and we know from past 
experience that it's not going to be a problem. We do not have 
to have that circ pump for this flight, so, that is not a concern 
to us. The answer, the technical answer came back in just before 
I left over there that we will proceed with that test even with 
the loss of hydraulic circ pump number 2. Some other activities 
that went on on this past shift, we did a COAS CAL, a COAS 
calibration is a procedure that we go through to check the 
optical alignment, or the physical alignment of an optical 
sighting device to use as a backup to the STAR trackers. That 
went very well. The Commander had a COMM problem in one of his 
mike sets and it, we have isolated that just before they went to 
bed. There's a unit on the wall in these wireless headsets 
that's used to communicate or broadcast from the wall unit to a 
unit that's strapped to his leg. That interfaces to one that's 
down, and either Richard will change it out tonight, which is 
what I suspect he'll do, or he'll get up early tomorrow and 
change it out so he can get on the wireless intercomm system. 
The consumables status as of this off-going shift is that we have 
enough to fly the 1 day extra flight that I think you all are 
familiar with, plus our nominal two day contingency, and about 15 
hr in addition to that, so, we are very fat on consumables, 
hydrogen is a limiting consumable, but there is absolutely no 
issue with that. During one of the experiments that we were 
running today, was the what's called the Tail Glow, there's a 
glow phenominon that's been observed on some flights, and it 
calls for us to, this particular experiment calls for us to mount 
some cameras in aft windows and take some pictures at the 
appropriate lighting conditions. There were some difficulty with 

STS-8 CHANGE-OF-SHIFT BRIEFING p8ja 8/30/83 2:00 p.m. PAGE 2 

mounting the cameras to get a low enough look angle on the tail 
to get the pictures exactly like we wanted, and we will be 
looking at a different way to attach those cameras to t'^e aft 
windows prior to a repeat that's already scheduled for that 
activity on flight day 6. We had a failure of a forward MPM 
deploy microswitch. All that is, there are two, on the three 
pedestals on the RMS, there are two raicroswitches that monitor 
the, when you roll them out to the out candid it out position, 
they do nothing other than monitor the position. One of them 
failed open, the other one is correctly indicating the 
position. If neither of them worked, it would not be a problem, 
it's merely an indicator of where the thing is and you can look 
out the window and determine that. And for those of you that are 
looking forward to tomorrow, this may not be exactly right, but 
it is very close, with the changes that are going on, the deploy 
ti'-ne for the PAM tomorrow will be 1 day, 1 hr, 17 min, and 2 
sec. The crew has done a cursory survey of the vehicle as far as 
tile damage is concerned. That's sometfiing that we always try to 
get accomplished on flight day 1, and they have seen very minimal 
damage on this particular ascent. They found two white tiles on 
the right OMS pod that had craters roughly 1 in. by an inch and a 
quarter in size and looked to them about a 1/4 in, deep, and then 
out the forward windows, they found 2 tiles with chips, small 
chips out of them. We'll take a look at those probably with some 
TV whenever we can get it scheduled and worked into one of the TV 
plans that's already scheduled. It clearly is not worth the 
effort of scheduling any extra TV activity. Those are most of 
the things of note. The RMS was activated today and went throuc^h 
the RMS checkout. The crew did report that it looked like the 
elbow joint on the RMS was a bit sluggish. We suspect what their 
scenario was described as is the elbow would drive for a little 
bit and then stop, and then drive a little bit and then stop, and 
then drive a little bit and stop, something along that nature 
while the switch was always held in the single mode which is the 
elbow joint selected. That particular switch takes about a 7 lb 
force to make and we suspect, we strongly suspect that even 
though the crew thinks he had that switch pushed all the way up, 
that just any relaxation at all, he really would not be 
electrically making that switch and so he was losing the drive 
command. Looking at the data on the ground, we can see when the 
drive command in the actual position deviate and they never did 
deviate. At the times when it stopped, the drive command was 
going away too and we suspect it was merely the strong force 
required on that switch w&s just dropping off. He was just not 
maintaining the right tension on the switch. The plan for 
tomorrow right now is everything as you have been told for the 
published procedures of the deploy is scheduled on time. The 
health check that was done on the PAM today was good. Everything 
that we know about on all the systems as far as the payload is 
concerned is that they're in a go condition. So, we don't know 
of any changes, even minor ones in the next fev/ days activity. 
That's really all I have to say. 

STS-8 CHANGE-OF-SHIFT-BRIEFING p8ja 8/30/83 2:00 p.m. PAGE 3 

PAO Okay. Please wait for the mike, Craig Covault, 

Aviation V^eek. 

CRAIG COVAULT (Aviation Week) Harold, could you please review 
two things. The success or lack thereof TDRS testing during the 
shift, and also review the electrophoresis startup and work that 
occurred during your shift. 

H. DRAUGHON The electrophoresis first. We were scheduled to do 
samples 1 and 2 today. Those were done, and I believe they 
finished them about 20 min early, Craig. Everything went well. 
There were a couple of nuisance messages that came up on the 
control hardware that's used for that unit. They amounted to 
some buffers that were overflowed with messages that were sitting 
near a deadband and toggling, and it just - - the system is built 
to house a certain amount of messages and since it v-as near a 
deadband and cycling in and out of bounds, it was continully 
reading into the registers and filled it up, and we got a message 
because of that. I think there were three different parameters 
that acted like that. They were no concern at all. So, those 
two, first two samples of high priorities, first two highest 
priority samples were done as scheduled today and the system is 
secured now. The TDRS has been operating in a OMNI antenna off 
the orbiter, low bit rate fashion since launch. It has been 
working well. There have been a couple of instances where thero 
were ground hardware problems in communicating via TDRS, but 
nothing that would affect - - the testing to date has been, I 
think very, very successful. We went into the flight without a 
great deal of experience on the TDRS satellite or working that 
link, although, I think that most of you are aware of the testing 
that we slipped a missicn to get accomplished. We thought, going 
into the flight, that nominal operations, as long as everything 
was up and good, that things were going to go fairly smoothly, 
but since it's a brand new system and a major complicated system. 
If we had problems with it. It was going to be a little clumsy In 
dealing with the system and managing It, because we just don't 
have any time at all on running that system. That has proven to 
be the case. The two or three times It has gone down, It has not 
restored quite as quickly as our regular network would come back, 
but we have never lost a complete pass yet. we lost about 18 min 
out of one pass when our computer at White Sands went down. It 
has been working all along and we're very satisfied. We're going 
to try, when I left over there, the plan was to try a low 
frequency test around REV 9 or 10 and then high bit rate off the 
OMNI's on REV 11, I believe. 

1 • II 

STS-8 CHANGE-OF-SHIFT BRIEFING p8jb 8/30/83 2:00 pm PAGE 1 
OMNI's are S-band. 

H DRAUGHON The OMNI's are S-band. Tho Ku-b?nd won't be 
S;plSed until after the PAM Is deployed. There is a direct 
conflict in Ku radiation while the INSAT's vehicle is still 
SnEoa d! YOU could do it if you could fsolutely guarantee that 
?he Ku-band antenna would never paint the inside vehicle, but 
^hL rannot tolerate Ku-band signals as strong as what that 
antenna pStsou^'so we thought it a prudent thing to not deploy 
?SarantennI and activate it until after the PAM is gone, and 
weWe got rten?y If time after the PAM deploy to completely 
checkout the Ku-band operation. 

PAO Torn Koch, Channel 13. 

rr.r.M vncn ^Channel 13) Harold, how does the deployment of INSAT 
Sp^fwItS'pJoili^L deployments UKo WMPA B and how confident 
are you that it will go off without a hitch? 

H. DRAUGHON It compares quite a bit with the H^?^«^^^pacecraf t 
Unri of deolovs. The PAM is the key to that. It s -^ust anocnet 
seaes ofpAS^- - it's really a PAM deploy and just want to make 
s"e ?hat the spacecraft status is good before you feploy it 
Tvs a fairly straightforward procedure, it really i?, and well 
understood by the c?ew and the ground controllers. It's very 

KOCH IS this mission, the schedule of this mission any more 
difficuU or rigorous for the astronauts than previous missions? 

fl. DRAUGHON Probably the only one that is any more ^tressful or 
harder on them is the time, you know, the thing that dictated the 
night launch, more than anything else, "^s some attitude 
constraints imposed by the INSAT spacecraft, some Sun, Earth, 
Hasan Where their POCC used the geometry of that, and the fact 
?hat the? need the Hasan control center to ^^on^rol their vehicle 
as it qoes out Of geosync. That's what drove us to the weird 
?lunch^?!me That?s the, I think, the only thing that makes it a 
little more cumbersome. 

PAO Back here. 

DOUG MILLER (KTRH) First of all, how far off wi^?; ^^^^JSa^*"^' 
fhA PAM deolov be as a result of the delay in launch. We've 
heard^he figure 2 sec earlier. Does that jive with what you've 


H DRAUGHON That's pretty close. Yeah, if you're talking about 
Ulssion Elapsed Time. If Jou're talking about local time, it's 
(garble) . 

MILLER It would actually be 19 min, 2 sec off. 

STS~8 CHANGE-OF-SHIFT-BRIEFING p8jb 8/30/83 2j00 pm PAGE 2 

H. DRAUGHON If you want to talk about local time, that's true. 

MILLER Seventeen minutes. At any rate, how would say the crew 
is adapting to this insomniac sleep schedule it has to keep? 

H. DRAUGHON Well, they started adjusting their zicadlan rhythm 
two weekends before launch and those days that we've been running 
simulations with them from that time on, our teams have come in 
and done simulations at 3:00 or 4:00 o'clock in the morning to be 
during their workday. So, they should be right on the money. 

MILLER So you haven't noticed them being sluggish or groggy as 
a result of this? 

DRAUGHON No, not at all. I wouldn't expect them to be, not on 
ascent day. 

MILLER And finally, have any health problems been reported? 
Realizing you can't talk about specific crewmembers, but are any 
of them experiencing any problems whatsoever that you know of. 

H. DRAUGHON There have been no requests for any private medical 
conferences from this crew on this flight. 

MILLER You haven't heard anything to that extent. Of course, 
you probably wouldn't have a PMC because Thornton's onboard, but 

H. DRAUGHON Well, that's the only way I could have heard about 
it. That's the only way anybody could have heard about it is if 
they request a private medical conference. 


PAO Back up here. Craig Covalt, 

CRAIG COVALT Harold, I caught a bit of air-to-ground 
conversation where it sounded like Dick was working with the RCS 
and didn't think he was getting quite as much out of the jets as 
he was trying to. what was going on there? 

DRAUGHON That was during the COAS calibration. The attitude 
control when you're trying to do COAS cals with a narrow optical 
field of view instrument is a tricky task, control task to pull 
off, and to do that there are a couple or three different 
procedures that we've invented to try to do that. The problem he 
was having was with the pulse size, the size of the control input 
that we had loaded in the DAP's, the autopilots at the time, he 
was having to put in a whole bunch of small inputs on the 
verniers for the pulse size that we had loaded to try and get a 
maneuver started and then stopped to drive out, I think it was 
about a 3 or 4 deg pointing error and he wasn't having a lot of 


STS-8 CHANGE-OF-SHIFT BRIEFING p8jb 8/30/83 2:00 pm PAGE 3 

luck with that, so he'd gone over and selected another DAP with a 
lot more authority and it was, he was fighting that particular 
problem. Bob Crippen had a similar experience on the last 
flight, having difficulty precisely and easily aligning the COAS 
to a particular NAV STAR. Dick was successful In getting, the 
first REV we tried It, he got 3 or 4 marks, 3, I believe, and the 
next time he got 1. All 4 of those marks were well within the 
accuracy that we would require to use it as entry aid. So, he 
was being successful, but he was having to work at it. 
Postf light, we'll take another look at those procedures, and we, 
indeed, you may hear us come over here again this flight. We do 
have an excess of control gas on this particular flight because 
of the remanifesting and taking the lUS TDRS off. So, we may 
elect, if we've got some extra day on the flight day to let him 
have another go at that with some slightly revised procedures. 

PAO Further questions here in Houston.? Lets go to 

Marshall Space Flight Center. 

PAO Marshall Center does have questions. The first 

from Dave Dooling, Huntsville Times. 

DAVE DOOLING (Huntsville Times) (Garble) let me clear up a 
couple of details first. You said that the problem with the 
hydraulic recirc pump is in the dc to ac converter? 


DOOLING Okay, and on the RMS, it's a switch that the astronaut 
apparently was not holding down with a full 7 lb of force to 
depress it? 

H. DRAUGHON Dave, that's at best a speculation at this time. 
That's our best guess at what it is. A similar phenomenon was 
noticed on flight 2. The same kind of sporatic response out of a 
single joint. 

DOOUNG Okay, and on the CPES, have there been any comments on 
the minor membrane leak t'.iat was reported before launch? 

H. DRAUGHON None to my knowledge, no. One of the, on the 
sample 2, there was one small incidence, the fixative that's 
injected into the sample after it's been processed, after the 
needle syringe was extracted, some of fixative did flow back out 
of the container and was mopped up by Brandenstein, but that's 
the only leakage problem that I'm aware of. 

JIM ADAMSON (Channel 31) It's probably a little too early to 
tell, but have their been any problems yet with the waste 
management system? 

STS-8 CHANGE-OF-SHIFT BRIEFING p8jb 8/30/83 2{00 pm PAGE 4 

H. DRAUGHON No. If they have, they have not been reported and 
I don't believe there have. 

Okay, and a last question, on the crew health 
issue. Has anybody taken a look to see how the rats are 

H. DRAUGHON We surely would have questioned that if we had 
thought of it. I know there hasn't been any dialogue on air-to- 
ground with regard to the rats yet. 

PAO No further questions from Marshall. 

PAO Okay, lets go next to Kennedy Space Center. 

Brian (garble) (Voice of America) Shortly after the beginning 
of the regulation sleep, we heard reference to some antenna 
adjustments being made. Is there any problem with the 
communications system. If so, how serious? 

H. DRAUGHON That incident, or problem, or whatever it turns out 
to be was not resolved when I left the room. It started on the 
last pass on my shift, and what went on there at Santiago and 
then Ascension was that there was a reduced level of RF signal 
being received at the Orbiter from TDRS and we were not lockina 
up on what we call the forward link. That's the link from the 
control center forward to the Orbiter. You will hear that term 
from now on, the forward link and the return link. The forward 
link receive signal strength was not what we thought it ought to 
be, and we were not locking up on it Onboard. That being the 
case, we could not have the crew reconfigure to Orbiter to 
communicate via GSTDN tracking station, on a different tracking 
station until we got to one with the UHF communication, that was 
Santiago. When we got to Santiago, we called them and had them 
go to GSTDN mode, and we acquired them and got data and got 
communications with them. I left between there and Guam, so I 
don't know what they found out at Guam. The speculation when I 
left there wa-. "--hat perhaps we had a problem in one of the 
antenna select modules onboard that's used to select the 
appropriate OMNI antenna, or the one that's most favorable to 
TDRS, or whatever else you're trying to point at. I honestly 
don't know where that whole discussion has led. 

Another question. Is there any chance that the 
switch problem on the RMS might effect the experiments of the 
payload flight test article? 

H. DRAUGHON No. None at all. if that indeed turns out to be 
what the problem is, then we'll merely point that out to the crew 

and they'll just have to you know, in 1-g, later at the Cape 

or someplace, it's kind of easy to push 7 lb on something, but 
once you get weightless, you gotta back you butt up with your 

STS-8 CHANGE-OF-SHIFT BRIEFING p8jb 8/30/83 2j00 pm PAGE 5 

Shoes up against something to push against and maintain a 7 lb 
force push-on switch. That's kind of the reason we've - - that 
and the behavior of the actual position versus commanded that we 
think that that's probably what's going on. If that is the 
problem, and we have diagnosed it correctly, it will not be a 
problem to the PFGA testing. 

DAVID HAINES (WSSE TV, Charlotte) Can you talk a little bit 
about Dr. Thornton's activities today? 

H. DRAUGHON I really can't. I know he was taking a bunch of 
baseline, in a very generic sense, I can. He was taking 


STS-8 CHANGE-OF-SHIFT BRIEFING p8jc 8/30/83 2:00 pm PAGE 1 

H. DRAUGHON I really can'T. I know he was taking a bunch of 

baseline, in a very generic sense I can. He was taking a bunch 
of baseline initial condition kinds of measurements today and 
then he was going to look for changes and deviations during the 
flight, and that's about as good as I can do for you. He was 
making those basic measurements. There were a set taken prior to 
launch and then there's a set early on-orbit. There's another 
set - - there are other sets during the flight, some prior to 
entry and then another set, I believe, about an hour after 
landing. That's just his basic data base he was getting there 
today, I think. 

PAO No more questions from KSC. 

PAO Okay. Doug Miller, KTRH. 

DOUG MILLER (KTRH) Just one final statement on the crew's 
spirits. How are they doing as far as you can tell over the 
(garble). They seem like a pretty buoyant lot don't they? 

H. DRAUGHON Yes they do, and they're pretty excited. I 

think, if you haven't heard the discussions about describing the 
ascent phase, you ought to find you a tape recording of that and 
listen to all three. They went through Truly, Brandenstein, and 
Gardner. All three went through their impressions of what ascent 
looked like, and they were suitably impressed with all that was 
going on around them, and they're not over it yet, I don't 
believe. I doubt that they went, really went to sleep when we 
put them to bed a while ago. 

PAO Back up here at Craig Covault. 

CRAIG COVAULT (Aviation Week) This crew's taken, I believe, 
almost two to three times as much Hasselblad film as even some of 
the Skylab crews carried in order to get some good photography in 
the Southern Hemisphere. Do you know if they're going to be 
sending up, perhaps during the night on the printer, weather 
satellite information on cloud-free areas they'll be over flyings 
for best photography. 

H. DRAUGHON Craig, there are some times in the CAP now where 

there are view periods, i think is the name that we have given 
them, and I notice we changed one of them 2 min or so earlier 
today, but there are some times when there are some particular 
features that either the crew or somebody asked them to take a 
picture of that is documented, and we know what those are and 
updating them for them. The big thing is that on this flight 
with the night launch, we're flying over a part of the world with 
those ground tracks in the south that have always been - - the 
crew's always been asleep when those were in darkness before, so 
it is a first opportunity to get some of those pictures and they 
Intend to capitalize on them. 

STS-8 CHANGE-OF-SHIFT BRIEFING p9ja 8/31/83 6;00 am PAGE 1 

PAO Good morning everyone. Let me introduce up on the 

panel here with me Randy Stone - Plight Director, Rob Kelso - 
Pay load's Officer for the Offgoing Plight Control Team and Dr. 
Versantha - the Deputy Director from the Indian Department of 
Space and I'll turn it promptly over to Randy to debrief on his 

RANDY STONE Well I'd like to say once again that the Challenger 
and the flight crew and a hard working group of people 
successfully delivered another satellite to low earth orbit and 
it was a flawless operation today with the throughout the 
deployment sequence. We had absolutely no problems and the 
accuracy of the deployment is what we have advertised and 
consistent with the other satellite deployments that we've done 
to date. The Challenger is performing extremely well. The crew 
has been operating today ahead of schedule all day on all of the 
activities that we had planned in the flight plan and we couldn't 
be more pleased with the performance of the vehicle and the crew 
today. It's a pleasure to come to one of these press conferences 
and not have to tell you about a whole bunch of problems on the 
vehicle and that's where I am today. There are very, very few 
problems on the vehicle. We talked about the one circ pump 
problem from yesterday. It is still with us. We will not use 
hydraulic system 2 circ pump for the remainder of the mission. 
It's absolutely no impact to any of the planned objectives of 
this flight and that is the only significant failure that we have 
had to date. You may have heard in the night that we did wake 
the crew up one time with an alarm. It was an antenna message. 
We had been troubleshooting the problem since yesterday. We had 
a similar message yesterday. We believe we have a handle on what 
that problem is in the vehicle. We really don't have a failure 
of any antenna onboard the Challenger. However, we have an 
erroneous speedback indication that's telling the computer that 
when it selects that antenna it's not being selected. And we're 
working a plan to keep that message from happening tonight and 
waking up the crew. With that I would like to turn it over to 
our Payload Officer, Rob Kelso, and he can summarize the payload 
operations today and the accomplishments of the crew and with the 
CFES and the other payloads. 

ROB KELSO In terms of the other experiments other than the 
deployment, the crew is operating CFES sample number 3 this 
morning and in addition, we completed incubator sample number 3 
on our shift. And we performed the gas activation for the group 
A experiments and that was completed just before we went off 
console. Relative to the deployment, as Randy said, we had just 
a super day today. All the activities for the deployment went on 
schedule right on down the line - the whole step of the way. The 
deploy scenario for this particular satellite is somewhat 
different than we have used in the previous 4 communications 
satellites we've launched from the shuttle. If you remember on 
the past 4 satellites we would open the sun shield just prior to 

STS-8 CHANGE-OF-SHIFT BRIEB'ING p9ja 8/31/83 6:00 am PAGE 2 

entering mechanical sequence about deploy minus 15 mintues. For 
INSAT we backed that procedure up to roughly deploy minus 70 
minutes to deploy minus an hour. Today at deploy minus 70 we 
performed the backup and prime sequence control assembly checks 
onboard the spacecraft and as soon as that was completed we 
opened up the PAM sun shield. That was done right over the 
stateside pass. The crew then performed the spacecraft powerup 
to a full deploy configuration. This includes the COMM system of 
the spacecraft with its transmitters and this allowed the control 
center here in Houston as well as the remote facility in Hassan 
to look at the spacecraft telemetry and systems configuration 
before we got further in close to the deploy time. The crew 
reported when the sun shield was open that the spacecraft looked 
very clean and the data onboard the orbiter as well as the data 
m the ground indicated the spacecraft was in good 
configuration. Just before Ascension LOS Dr. Versantha gave us a 
go for deploy based upon the spacecraft configuration. We 
reported that up to the crew. Then over the Yarragadee pass 
which was a UHF site only without data to the remote POC or the 
control center, we gave the crew a final go for deployment based 
upon the network configuration for INSAT to support the transfer 
orbit operations of the satellite. At deploy minus 15 minutes we 
entered the mechanical sequence of the spacecraft and spun it up 
to 40 rpm and the crew reported that was a very smooth 
operation. The deployment today occurred right on time at 1 day, 
01 hours, 16 minutes and 54 seconds mission elapsed time. In 
Greenwich mean time that was 243:07:48:54. Over the earth that 
was over the central pacific just about sunset. As we came up to 
Hawaii, the crew reported their configuration to us. We had 
buttoned up the sun shield post-deployment and our configuration 
onboard the vehicle looked good. The spacecraft was acquired 
over Hassan at GMT of 243:08:56 which indicated we had a good PAM 
injection burn - that occurring at 243:07:48:54. Following 
acquisition at Hassan, a ground command from that tracking site 
was sent up to the spacecraft to separate it from the PAM 
expendable vehicle. That was completed at 09 11. The spacecraft 
was commanded to a 3 axis stabilization, a despin, and a sun 
acquisition mode at 09 22. We deployed the C-band antenna at 09 
30 and the transfer orbit solar arrays were deployed on the 
spacecraft at 09 41. in terms of the crew reports for the 
deployment, they had nothing to say but praise for that 
operation. They even reported that they were able to see four 
roll jets beginning to fire as we enabled the active mutation 
control system on the spacecraft roughly a minute and 25 seconds 
after it's left the orbiter. These are 5 pound jets on the 
spacecraft to maintain its control during the PAM coast leading 
up to the injection burn. I'll turn it over to Dr. Versantha for 
his comments. 

DR. VERSANTHA Truly, it should be thanks to NASA it was an 
excellent deployment. Everything was nominal and McDonneU 
Douglas firm performed extremely well and we believe everything 

STS-8 CHANGE-OF-SHIFT BRIEFING p9ja 8/31/83 6:00 am PAGE 3 

must be nominal and we could acquire the spacecraft on the dot as 
it was expected by the MCF at Hassan. We have also been 
successfully we have completed part of the work which was 
supposed to be done today and for the next 15 hours. It's a 
quiescent period whenever the first apogee burn comes up, 
basically, about 16 hours after the deployment. We're waiting 
for it and everything looks very good for the moment. 

STS~8 CIIANGE-OF-SHIFT-BRIEPING pDjb 8/31/83 6:00 a.m. PAGE 1 

I guess we're ready for questions. 

PAO Okay, questions here in Houston first, Wayne 

DoXcefino and you'll have to remind me what station you work for, 

WAYNE DOLCEFINO (KTRH) Physical health of the crew, do you have 
any kind of feel for that. Have there been any PMC's and then 
the other question is, are we ever going to get to hear Dr. Bill? 

STONE Well, there had been no PMC's requested and the TV 

that we had down during the night of crew activities prior to 
deployment - everybody looked very good and was working very 
well. And like I said, we have been ahead of schedule on nearly 
everything that was planned today so I believe the crew is 
operating at a high efficiency. Dick Truly told us this morning 
that Dr. Bill has been so busy down with his equipment and 
running his experiments that he hasn't even put on his headset 
yet today and but he is doing fine and staying on schedule with 
the things he wanted to accomplish today, 

PAO Craig Covalt - Av Week. 

CRAIG COVALT (AVIATION WEEK) Randy, could you put any numbers 
around your deployment accuracy and also tell me if you used any 
new techniques in setting up the deployment targeting this 
morning as you did last flight. There was a little different 
technique applied between the two deployments on last flight. 

STONE Well, we did not have any new techniques for this 

deployment, we did have the benefit of nearly 2 days of a 
tracking data to improve the orbiter state vector. The accuracy 
at deployment - the attitude accuracy was within, I think the 
biggest inaccuracy in any access was 9 hundredths of a degree 
from the preplanned deployment attitude. The down track error or 
the uncertainity in the state vector at the time of deployment 
was in the area of 5000 feet and that's fairly typical of vector 
accuracy that we can build here on the ground. That equates to 
about 2 tenths of a second of error in the orbiter position at 
the time of deployment. And we have a window of about + or - 10 
seconds for deployment accuracy so you can get a feel for how 
accurate we were today. 2 tenths versus, 2 tenths of a second 
versus a 20 second total window for the deployment and it was 
completely nominal and as good as we can expect to do on any 

PAO Yes sir, your name and affiliation? 

runs are working? 

STS-8 CHANGE-OF-SHIFT-BRIEFING p9jb 8/31/83 6:00 a.m. PAGE 2 

STONE I believe they are doing quite well if Rob would 

like to add something to my nontechnical description of the CPES, 
he's welcome to, 

ROB KELSO All the reports we've had from the crew indicate 
that all the cells are working well and no problems on the unit 
at all. 

PAO Paul Recer, Associated Press. 

PAUL RECER ASSOCIATED PRESS Yes, for Dr. Versantha. What does 
a satellite mean to the people in India? Is it going to have any 
significant impact on their day-to-day life and if so how? 


RECER Can you elaborate? 

DR. VERSANTHA This is going to, this is basically not the 
functions of the satellite. It's mainly a communication 
satellite which enhances of our telephone capability and it has 
two kinds of TV in it, television and has an (garble) which is 
mainly used for weather prediction and a disaster warning 
system. Of course, it certainly was a long way in improving our 
communications . 

PAO Wayne, did you have something else. I'm sorry 

Paul, wait a minute. Did you have any follow up Paul? 

RECER That's very nice in a technical sense but what does 

it actually mean to the people that are living in your towns and 
villages there in India. How is it going to effect their lives? 

VERSANTHA I believe that you must have heard about the 
earlier experiments we conducted using the ATS-6 satellite, the 
side program. Essentially it was one of a program that the 
objective was of education, educating the people. We (garble) in 
India where in community television sets were kept and people 
could come and watch in a school or any other place. Okay this 
is chosen. Now this is essentially a bigger scale - a much 
bigger scale. I'm not saying that next month, next year 
everything would be, all (garble) will be televised. No, but it 
takes some more time but certainly we get there, 

PAO Wayne Dolcefino again, please. 

DOLCEPINO I just want an update on TDRS. Is it working up to 
your expectations? 

STONE It's working extremely well. We ran a test early 

on ray shift today where we tried to use the high data rate 
portion of the S-band channel in TDRS. It was the first time we 

STS-8 CHANGE-OP-SHIFT-BRIEFING p9jb 8/31/83 6:00 a.m. PAGE 3 

had attempted to do the high data rate on S-band and we got it in 
a complete pass about 40 minutes of TDRS high data rate and it 
was a pleasant suprise to most people on the ground. TDRS is 
advertised in the S-band mode to work well on low data rate but 
only marginally in the high data rates on S-band and it worked 
flawlessly for an entire pass during the test. We plan to do 
that again I believe tonight during the crew sleep period and if 
we have the same level of success, we'll start using the high 
data rate mode of the S-band when the Ku-band is not available to 
us. Just before I went off shift, we successfully deployed the 
Ku-band antenna on the orbiter, ready to start the Ku-band 
testing with TDRS, But the first pass that we had available 
after the antenna was deployed we had a ground problem at White 
Sands with one of the ground computers and we were unable to use 
TDRS for that pass. When I - just as I was walking out of the 
control center, I talked with our ground controllers and the 
White Sand problem we believe was fixed and we were going to 
continue the TDRS testing on this pai;s across the TDRS satellite. 

PAO This is Voice of America, Paul Franchok. 

PAUL FRANCHOK (VOICE OF AMERICA) Dr. Versantha, what is the 
plan for the backup satellite, the INSAT IC, is it going to be 
deployed from our shuttle? 

DR. VERSANTHA Yes. The answer is yes and the contract for the 
backup satellite was awarded in fact in the June of 83, about 3 
months ago. The satellite itself Is planned to be launched by 
the shuttle in present plan is February of 86. 

FRANCHOK I have a question for Mr. Stone. You mentioned 

that the schedule was going exceedingly well and that in some 
points you're ahead of your schedule. Do you have any 
contingency plans for using this time. Have you packed a deck of 
cards or anything. 


STS-8 CHANGE-OP-SHIFT BRIEFING p9jc 8/31/83 6:00 am PAGE I 

STONE No, we always carry a shopping list of items that 

were unable to be scheduled in the flight plan because when we 
start packing in activities into the CAP we fill it as full as we 
think the crew can accomplish without making them feel like their 
behind all the time and as we get ahead we do pull out these 
shopping list items and accomplish them. And I suspect that we 
will, will be able to do some of those shopping list things that 
are unscheduled this far. 

PAO Anything further, well there are no questions at 

the other sites so that concludes our (garble) thank you. 


STS--8 CHANGE-OF-SHIFT BRIEFING plOja 8/31/83 2:00 pm PAGE 1 

PAO Gocx3 afternoon. We've got flight director Harold 

Draughon going off-shift from the past nine hours. Why don't we 
just go right into review of what happened during this shift. 

DRAUGHON Okay, My shift picked up at essentially at the noon 
meal of the crew today, and was a fairly nominal shift. There 
were a number of experiments scheduled for this afternoon. One 
particular one that ran the entire evening v/as of collection of 
some TACAN Navigation data that is a continuing experiment that 
we discussed with you on some previous flights, and that is one 
of gathering TACAN sensor data to determine how it might be used 
for onorbit navigation or area navigation in later flights. The 
other thing that was pretty much a continous thing all day today 
was the CFES experiment that we talked about yesterday. We had, 
yesterday, we ran the first two samples. Today, we completed the 
CFES operations, and quite successfully there were no anomalies 
with the CFES during the runs today. All the samples onboard 
were utilized. That package has now been secured and powered 
down for this flight. The other items that were going on as far 
as testing is concerned, of course, is the Ku-band that has been 
a continuing activity all day today. The TDRS testing today, 
after the deploy, I think Randy Storm talked to you about this 
morning, as soon as the deploy was over, or very shortly after 
that, the Ku-band antenna was deployed. We got our first data 
via Ku on that rev, and on rev, 2 revs later, we fired up the TV 
for the first time on ku-band, and immediately locked right up 
and if any of you have seen it, you are aware it's a spectacular 
picture. It's very high quality, even better than what you're 
normally accustomed to with the STADAN link which is good quality 
TV, and what you had today during the president's call. But, the 
Ku-band is even better quality than that, we are continuing to 
have the more or less maturity problems that I alluded to 
yesterday with regard to the continuous operation of the TDRS, I 
think it's just a maturity aspect of that system. You are all 
aware that it's just coming online, and we've had two or three 
occasions today where we had to re-load the computers at White 
Sands. On rev, the rev 2 revs before I left the control center, 
they lost a power amplifier but they are and their now in the 
process of getting that amplifier changed out. But, it's merely 
a matter of maturing their procedures and how quickly they can 
respond to what will become of normal operating conditions up 
there. On rev 23 we did hav? the President's conference with the 
crew over Hawaii. That was about a 4 1/2 minutes pass and was 
fairly standard, similar to ones that have been held on other 
flights. The incubator experiment was also completed today with 
sample 4. That's the end of that one. The PRM or Personal Rate 
Dosimeter Data was started for sleep period this evening. That 
experiment is now running. The heat pipe experiment there has 
been quite a lot of dialogue today with regard to the heat 
pipe. On a number of occasions, we asked the crew to comment on 
the colors, samples that are visible to them out the aft STS-8 

STS-8 CHANGE-OF-SHIFT BRIEFING plOja 8/31/83 2:00 pm PAGE 2 

windows. They did that and have been collecting the photographic 
data that will be analyzed post-flight. In a general sense, it 
appears that the heat pipe experiment is working as designed. 
It's temperatures are perhaps running a little hotter or a little 
higher than had been anticipated, but it is working, and it's not 
become saturated, and we think we're getting good data off of 
that. We had 2 so called anomalies. One was in the hydraulic 
system number 1. We had the accumulator pressure in system 1 
rhow a fairly record drop. It started outside of a station 
contact. When we got to, I don't remember which tracking station 
it was, the crew reported they had received an onboard message 
with that pressure decrease and had gone into the malfunction 
procedure that they have onboard for just such an occassion and 
had brought on the circ pump. The circ pump is a small pump that 
is used generally to circulate fluid, hydraulic fluid in the 
loops to get even temperature distribution throughout when we're 
off for a long period of time on orbit. Another thing you can 
use it for is to keep pressures up in the loop if you ever happen 
to have a system leak. There is a particular circuit In that 
system that tries to equalize or to control the flow of fluid 
with the circulation pump to keep the particular pressure up that 
is used reference the accumulator and reservoirs to each other to 
keep ahead on the main pumps. A valve in that circuit, we think, 
was leaking at about 2300 psi when it decayed down to around 2304 
I believe was the exact number, psi, it started a rather rapid 
decrease and Truly brought on the circ pump and pumped it back 
up. First time, it didn't go all the way back up to what we 
normally pump it back up to. It decayed down once again, and 
when we got over a tracking station, we wanted to get a accurate 
leak rate which you can't do as good a job with the circ pump 
running, eo we had them secure the circ pump so we could watch 
it. Later on, it got down again, and we pumped it up once more 
and it went even up then to very nearly the nominal pressure that 
we secure circ pump operations from, 2500 psi. After that 
instance, it decayed down to a lower pressure, but one that is 
quite acceptable at 2280, and then up to 2352. It stabalized at 
about 2362 and has been there ever since then. We put the sur - 
there's a mecha- there's a mechanism in the software where we can 
put the circ pump's into a GPC or computer control mode, and we 
can load in a time, a delta time, and run them at some duty 
cycle. We did that just before, during the sleep period. We 
just put the crew to bed, and we didn't want to take a chance on 
that pressure coming down lower, and sounding the alarm again 
during the sleep cycle, so we put that, we Instigated that 
particular software feature. There is no reason to believe that 
it would be required, but it's just a more prudent thing to do 
for the sleep period. And, as 1 said earlier, for several hours 
now, it has remained at 2352 psi. No indication that it's going 
to get below that. So that's what is going on with hydraulic 
system one. The other surprise that we had, was that around 
seven hours and a half, one day seven hours and a half, the crew 
received a klaxton alarm and, which is a class one alarm in the 

STS-8 CHANGE-OF-SHIFT BRIEFING plOja 8/31/83 2:00 pm PAGE 3 

vehicle, and it turned out we believe to be an inappropriate fire 
alarm in Av-bayl. The procedures call for you there two fire 
alarms in each Av-bay. They look at the other sensor, they do a 
self test on the sensors, and based on that try to sort out if 
you have an inappropriate alarm. That appeared to be the case, 
so just before sleep tonight, we pulled the circuit breaker that 
powers that particular sensor again to make sure that we don't 
get any inappropriate alarms tonight off that element, if 
anything should go wrong in AV-bay 1, the alpha, the A-sensor is 
still active, and online, and would alert the crew in which case 
they would do the normal procedures which are to dump a fire- 
extinguisher into that bay. Those are. the major activities 
today, and I'll be glad to entertain any questions you might 

PAO Ok, Please wait for the mike. Let's take the 

front row and hear Carlos Byars, Houston Chronicle. 

BYARS Harold, I didn't quite get something you said right at 
the end of your discussion. Did they dump a fire extinguisher 
into that bay or? 


BYARS is that normal? 

DRAUGHON NO, the normal procedure, if you get one, if you get 
an alarm, and you can't conclude that it's a false alarm, is to 
dump a fire extinguisher. Then there's quite a lot of equipment 
in each of the AV bays. The extinguishers do not damage the 
hardware. They are quite useful, and in fact, early on, the 
early flights, the procedures were even more geared or leaned a 
little more towards , with not a whole lot of cause, sometimes 
the procedures would have you to fire an extinguisher into the 
bay. We've backed off that a little bit, but when you're down to 
one sensor, if you've got one, that's what you would do. 
Because, you've got no way of sorting out a failed sensor. 

BYARS Are you still having the funnies, I think they've been 
called with some of the S~band antennas or S-band system? 


STS-8 CHANGE OF SHIFT BRIEFING plOjb 8/31/33 2:00 pm Page 1 

DRAUGHON We were having a problem, oh, I know what you're 
talking about - the antenna selects. We were getting a bunch of 
messages and we weren't sure why - the last time I was over here- 
why we were getting some antenna messages and the SM the systems 
management software in the computers carry a state vector so that 
the onboard can figure out where the tracking stations are and 
and - and that software tries to pick the appropriate omni 
antenna to aim at a particular tracking station. One of the 
checks that it does is once it does that there's some feedback 
from the antenna electronics that lets the system software know 
what antenna was selected. One of the antennas is not talking to 
the software. All the others are telling them when they have 
been selected. This one guy - it's the left lower right antenna, 
when he gets selected, he doesn't tell you. And when the 
software isn't told that the guy he asked for has come forth, he 
flags that, and that's what was going on. We have suppressed 
that message and it's no longer appearing We just - overrode 
that message in the software. 

PAO Craig Covalt, Aviation Week 

CRAIG COVALT (Aviation Week) On TDRSS, Harold, could you 
possibly qualify the amount of successful versus marginal testing 
today and the problems that you have encountered, expand on them 
a little bit. These are the problems they were having prior to 
STS-1 that involved, or STS-8, involved state vector and some 
auto track issues. 

DRAUGHON The - okay, the testing that has gone on when we're 
able to test - all the tests that have been - that we've been 
able to complete have been - the results have been great. The 
kinds of problems we're having are hardware outages in general, 
and when the hardware doesn't work, then you don't get any 
testing done. We have not had the class of failures where you 
run the test and the data is degraded and the data is marginal 
and the pictures are poor quality, we don't have that. We have - 
we've had cases where power amplifiers are broken or computers 
are down. Those kinds of things are the software at a particular 
center would not acknowledge a message to configure something. 
So we couldn't test at all. Those were the kinds of things - and 
they're maturity things. The problem with the state vector we - 
we do have a problem at white Sands at the ground station 
there. It evidently has some sort of a software problem in the 
way that is is Integrating state vectors and keeping track of 
where to point things and the way they fix that is to take their 
system down and reinitialize it and bring it back up again. And 
that takes on the order of an hour everytime v/e have to do 
that. It's happened three times when I was on shift. But we're 
getting a significant amount of testing done and as far as the 
planned detailed test objectives, I think we're pretty much on 
schedule - I don't have an accurate tally. I should have brought 
one, I will next time. But we're pretty much on schedule. There 

STS-8 CHANGE OF SHIFT BRIEFING plOjb 8/31/83 2; 00 pm Page 2 

were 19 very specific orders with a fine test that we wanted to 
get accomplished on this flight. And we're well into that list 
and in fact, I think we're just about right on. We may be 1 test 
down but not much more than that. And I think we'll make that up 
as time goes on. 

PAO Way in the back here. 

JERRY HUNIFANT (Times Magazine) Picking up on Carlos' question 
to you, Hal, is there any theory that you're entertaining as to 
why this Klaxon went off? 

DRAUGHON Well, we're pulling together all the data that we can 
find. There is some potential that there's some outgasssing 
going on in that bay in some piece of hardware. In the little 
bit of time that we had before I left over there, we did 
determine that there was Indeed one box, one electronics box in 
that particular bay that was new. Potentially, there's some 
small matter of outgassing from having a new box onboard. That's 
pure speculation. That particular sensor, that very one was 
taken out of another vehicle because it - and I'm - you know, I'm 
giving you data that doesn't have all that much guess time, stuff 
the latest inputs I've got in here. But there was some history 
on that particular sensor of it being more sensitive than the run 
of the mill sensor and it was taken off 101 and sent back to the 
factory and reworked and we think fixed, but it had at time 
attributed characteristics to being more sensitive than most 
sensors, most of these sensors are, 

HUNIFANT This is a heat sensor, sir? 

DRAUGHON It's a - no it's not a heat sensor, it's much like the 
ones that you buy and use in your house - I think it detects 
ionized particles, but things that are by products of combustion, 
it will detect things that you can't see or smell or sense, well 
ahead of what you can perceive. 

HUNIFANT Thank you. Next one. You mentioned tacan at your 
opening statement. Are - would you be prepared to command an 
orbiter in flight and navigate by tacan - make it a tacan, plot a 
tacan and fly around the world and make a tacan monitored 
approach or all the DME goodies, would you? 

DRAUGHON There are a group of people on the center - a group of 
navigation specialists that we have here that believe that that 
is possible with the tacan systems that we have. They arc 
pursuing that. Particularly in the area navigation. I'm not 
sure you would want to do the terminal approach on using 
tacans. In fact, I'm fairly sure you would not - that's why we 
have MLS's but as far as area navigation, with the right kinds of 
software and the right kinds of weightings of data and the right 

STS-8 CHANGE OF SHIFT BRIEFING plOjb 8/31/83 2:00 pm Page 3 

geometry and whatnot, yes you could do that. There are some 
people who believe you could. 

HUNAFUNT Thank you, sir. 

PAO Any questions back up front here? Craig Covalt. 

COVALT I don't want to belabo your false fire warning here, but 
I've been in the SMS when that thing has gone off before, and I 

DRAUGHON You don't ignore it. 

COVALT ... It's a fire drill - they go shut it down. I didn't 
hear this on air to ground but what is the procedure onboard when 
you get a Klaxon like that? Do you go feel the area? I'm not 
sure - were you saying avionics bay 2? 

DRAUGHON Yes, av-bay avionics bay, 


DRAUGHON It's av bay 1 I believe. 

COVALT Is that the area that downstairs they can go put their 
hand against the wall and characterize? 

DRAUGHON YOU can, I don't think anybody did that. 
COVALT Oh, okay. 

DRAUGHON The real reason is you've got the other sensor - the 
air in there ~ l thought that - the air will convect these 
particles around and the other sensor should do it. There are 
got two things going for you. You get a vote against the other 
sensor that's in the bay and there's a self test on it where you 
-a self test switch, and it's supposed to read a certain number 
of counts and this one was reading high in the self test mode 
that was very, very close to the spec limit but it was a little 
high. But you're right, Craig. You don't ignore a Klaxton when 
it goes off. 

COVALT Was that during AOS or LOS? 
DRAUGHON No it was before AOS. 
COVALT You didn't see it. 
DRAUGHON NO we didn't. 

PAO Carlos. 

STS-8 CHANGE OF SHIFT BRIEFING plOjb 8/31/83 2:00 pm Page 4 

CARLOS BYARS You wouldn't be getting i\r\y outgassing from the 
rat box would you? 

DRAUGHON I hope not. 

PAO Any further questions before we go to Marshall? Okay, 
let's switch to Marshall for questions. 

DAVE DOOLING (Huntsville Times) Harold, did the crew have any 
special comments about how the CFES operations link - could they 
pick out any special separation from the flow and has there been 
any recurrence of the minor membrane leak that was mentioned 

DRAUGHON I'm fairly certain there was no discussion of any 
leaks on any of the samples run today. There was one that I 
talked about briefly yesterday on the first two samples but there 
was none today to my knowledge. Dale Gardner talked at one time 
about - he commented on how well he was doing in mixing one of 
those things or prepared one of them but in general, they 
indicated that the thing was going well and they were getting 
through all the samples, just in a general sense is the only kind 
of comments we had from the crew today. 

DOOLING Any feedback from the MacDac people here on the ground 
on how they felt the operation went? 

DRAUGHON Yes, we do as a matter of fact. A little bit before I 
left over there we got a message from those folks giving their 
well done to the crew for their support and telling them in 
effect they were saying that they had pretty much had an easy job 
on the ground because the crew had done such a fine job at 
getting the samples done - it did go very smoothly. 

DOOLING Okay, has anything more been developed about that 
switch problem on the RMS or is that something you're just not 
going to worry about for tomorrow's operations? 

DRAUGHON That's correct, we'll go into tomorrow's operation 
supposing that's is what it is and take it from there. We don't 
plan to do anything else prior to tomorrow. 

DOOLING Okay, thank you. Nothing more from Marshall. 

PAO Okay, no questions from the Cape so we're back in 
Houston. Any further questions here before we adjourn? Okav 
thank you for coming. 


STS-8 CHANGE-OP-SHIFT BRIEFING pllj 9/1/83 10:00 p.m. Page 1 

PAO Okay, good evening and welcome to our change of 

shift press conference, this is with offgoing Flight Director of 
the Planning Team Jay Greene and I'll go ahead and turn it over 
to Jay to describe activities on the shift. 

GREENE Okay, shift was one of those shifts where you have 

to really look to find things to do. The Planning shift, we're 
responsible for taking the things that went wrong on the day 
before and factoring them into the crew plan for the next day. 
We put out a little cap summary that details the changes to the 
flight plan that the crew is carrying onboard. I think we made 
one, two changes of any significance. The crew is not quite 
ready for the show, the TV show that's scheduled for early 
tomorrow morning and so we deleted that and we talked about 
postponing it for a few days. And the second thing we did was we 
determined that it wasn't necessary to go through the IMU 
alignment procedure that's scheduled for the normal morning 
period and we're going to do what's known as a star of 
opportunity align, no particular alignment maneuver just pick up 
stars as they are accumulated in the star tracker. Bottom line 
on tomorrow's flight plan is, we're flying essentially the flight 
plan that's, not essentially, we're flying the flight plan that 
is published in the crew activity plan with virtually no changes 
at all. During the night we tried to press on with our TDRS 
testing, towards the beginning of the night period we got one, I 
think maybe two passes of TDRS data, during that period we did 
manage to accomplish one of the detailed test objectives that was 
scheduled for tonight and that was a low data rate pass on TDRS 
with a system's configuration that I am not intimately familiar 
with. Later in the night we experienced some difficulty 
primarily with the white Sands ground station and that virtually 
ended any TDRS activity we hoped to accomplish during the 
night. The result of that was, that we went for a period of 
about 3 hours with no telemetry inside into the vehicle. By 
itself, 3 hours may seem like a lot, what it boils down to is I 
think there was one maybe two ground stations during that period 
that we flew over that on a non-TDRS flight we would have had 
contact with and on this flight because we were configured in a 
TDRS mode, we didn't. We always had the opportunity as we passed 
over UHF stations to wake the crew up and fix the configuration, 
because the vehicle's in such good shape and because the onboard 
monitoring systems are set to protect the crew from any 
malfunctions that could occur we opted to let the crew sleep and 
rest up for tomorrow as best they could. Towards the end of the 
shift when it came time to uplink our teleprinter messages, which 
are any CAP updates or procedural changes for the next day, since 
the teleprinter activity normally wakes the crew anyway we opted 
at that time to call the crew on UHF over Bermuda, and I believe 
that was at 1 day, 18 hours, somewhere right around there, 4 
minutes, somewhere in there. And we used that UHF substation to 
ask the crew to reconfigure into a ground STDN mode, ground COMM 

STS-8 CHANGE-OF-SHIFT BRIEFING pllj 9/1/83 10:00 p.m. Page 2 

mode, they did, we regained COMM and the vehicle is in perfect 
shape. Not much activity on the Planning shift. 

PAO Okay, we'll go ahead and throw it opened to 

questions if there are any? Paul Resser. 

RESSER What was the problem at White Sands that led to 

this difficulty? 

GREENE I'm not sure it was one problem Paul, it might have 

been several problems that seemed to be inherent in setting up a 
new operation. The one that sticks in mind, it appeared that 
there was a problem in transferring state vectors that go from 
here to Goddard to White Sands and the way I understand the 
problem, it was not one problem, there might have been several 
problems, some at Goddard some at White Sands. 

RESSER Okay. The data that you lost, was that stored 

automatically onboard and then dumped? 

GREENE Yes, it's all recorded onboard, we never exceeded 

cacpacity of the onboard record, it's all being played back and 
we'll have insite into the entire period. 

RESSER Okay what was the longest period that you were out 

of touch with the craft all together? 

GREENE There was one period that was a 3 hour block. 

RESSER During that 3 hours, you had no communications at 

GREENE We had UHF if we needed to talk to the crew. We 

did not have telemetry data. 

RESSER You had no TM coming in for 3 hours? 

GREENE That's right, that's right. 


PAO Morton Dean? 

DEAN Which TV show are you talking about on live TV 
(garble) ? 

GREENE It was an in-cabin TV scheduled for the morning 

prior to the PFTA work, I think it was Bill Thornton in-cabin 

DEAN Oh. And why are they not ready for it, any 
specific reasons? 

STS-8 CHANGE-OF-SHIFT BRIEFING pllj 9/1/83 10:00 p.m. Page 3 

GREENE They've just been working on some of the other 

Thornton stuff. And I believe it came down on the air ground 
this afternoon and ~ - 

DEAN I didn't hear about it. 

GREENE and Dick requested that we put it off for a day 

and let them get caught up with their work. 

Have there been any private medical communications? 


RESSER Back to this TM loss. If I understand it right, 

there's a switch that sends the TM to the ground via TDRS and one 
that throws it, so it's picked up by the ground stations in 


Thank you. 

Affectively, yes. 

Affectively. And it was thrown towards TDRS, you 

We were set up in a TDRS mode, yes sir. 
Okay. And it does require the crew to throw it the 


weren't - - 


Other way? 

GREENE We have two options. One is to set it up for the 

crew to throw it to get us back into the GSTDN mode, we do have 
an option to put a stored program command up. 



GREENE Unfortunately when we lost the TDRS comm we were in 

the middle of a detailed test objective that's rather involved. 
It involved several switching commands onboard. To accomplish 
the switching commands we used this table of stored program 
commands that clock out commands at specific times that are 
preloaded. For the setup of the test called for using all of the 
stored program commands capability for the test and didn't leave 
us a command space to fall back to GSTDN and if we had to. 

RESSER Okay, but you could have at any time at your over 

ground station during this 3-hour period of waking the crew if it 
appeared necessary? 

STS-8 CHANGE-OF-SHIFT BRIEFING pllj 9/1/83 10:00 p.m. Page 4 

GREENE Yes sir. We talked about it but the temptation Is 

there but as long as the vehicle's in the shape it is, it's best 
to let the crew sleep. 

PAO Okay, do we have any questions from other 

centex.-? None from other centers, none others here? Okay. 
That'll wrap it up for tonight and thank you. 


STS-8 CHANGE-OF-SHIFT BRIEFING pl2ja 9/1/83 5:15 pm Page 1 

PAO Good morning everyone, here to tell you about his 

shift in the control center is Flight Director Randy Stone. 

STONE Good morning, today's activities have gone quite 

smoothly. The primary objectives of today's flight plan is to do 
the first 5 hours of testing with the Remote Manipulator System 
in the Payload Flight Test article. On schedule this morning we 
unberth the PFTA with the RMS and have been running a number of 
tests with the ARM and the PFTA. The purpose of these tests is 
to qualify the ARM for operating with heavy, heavy, heavier 
pay loads than we've operated with to date. The two tests that 
were run on my shift this morning were one with the interaction 
between the AflM and the Orbiter where we wiggle the ARM and see 
what it does to the Orbiter and the other test is where we wiggle 
the Orbiter and see what it does to the ARM and with the 
information we gairi from these types of tests will be able to 
determine the performance of the ARM and the Orbiter control 
system when dealing with much heavier payloads in the future. 
Other items that were accomplished today on my shift were that we 
have done some reconfiguration to alternate sets of heaters and 
alternate components in the environmental control system. And 
the purpose of these tests were just to verify for turnaround 
purposes the health of redundant systems in the Orbiter and once 
we got all switch over to the alternate sets of heaters and the 
other components, we verified for KSC that they don't have to do 
any additional testing once we get the Orbiter back for 
turnaround and we found no problems in that, in those tests this 
morning. We completed the cold canape test that you may have 
heard about that we started last night, we have been running for 
about 15 hours, 14, 15 hours with the Orbiter's tail pointed to 
the Sun to give the forward part of the Orbiter a deep space 
looking angle to cool off the cockpit area. It's a rerun of a 
test we ran on Orbiter 102. There had been some changes in the 
thermal structure of the vehicle and we wanted to verify the, the 
predicted data on the forward part of the vehicle in this cold 
environment. We did have one failure in the night on Jay 
Greene's shift, I guess Jay didn't even know about it this 
morning until, he didn't know about it, it was reported after the 
crew got up. When Dale Gardner checked the TV cameras this 
morning, one of the cameras, camera delta, it's the one on the 
forward right hand side of the vehicle in the payload bay, it 
wouldn't downlink a picture, this is no impact to the flight, 
it's not one of the cameras we use for data takes during the RMS 
testing but it is the color camera with the wide angle lens that 
gives you some of the neat views to the tail of the Orbiter from 
just a PAO sense. It does not look like we're going to able to 
recover that camera, we have tried over several different command 
sites to command it to into operating it, been unable to do so. 
The one experiment was cancelled today just because Dr. Bill was 
a little bit behind schedule in getting all of his testing done 
and that was the, the TV of the student experiment, it will be 
rescheduled possibly later today or tommorrow. The TDRS testing 

STS-8 CHANGE-OF-SniFT BRIEFING pl2ja 9/1/83 5; 15 pm Page 2 

has been suspended at least here temporarily, we had no TDRS 
testing on my shift today, due to white Sands ground problems, 
when I left the control center I checked with the ground 
controller and White Sands is up with an interface to the Goddard 
network and we hope to be able to try to reestablish an interface 
between the orbiter and TDRS later on today in Harold Draughon's 
shift. We hope that comes to pass. It is not been an Orbiter or 
a satellite problem, it has been strictly a ground systems 
problem at White Sands. With that I'll open the floor to 
questions . 

PAO Craig Covault, AV Week. 

COVAULT Randy, a little more detail please on the TDRS 

problem, about how many hours or specific tests did you lose and 
do you have mor^ information on the nature of the ground problem? 

STONE I'll answer the second one first, the nature of the 

ground problem at White Sands I believe is a software problem 
now. There had been a hardware problem earlier, we believe that 
is corrected and it's a software processing problem and I don't 
have any of the details on that Craig. As far as what we have 
lost today with respect to TDRS, we have not had any interface 
with it, we have not had any communications with the TSRS 
satellite through my entire shift, so that's about 9 hours and I 
think Jay Greene's shift lost TDRS about 3 hours into his 
:^hift. So we're now done about 13, 14 hours in just being able 
to use TDRS and one of the things we're gaining from our 
experience on STS-8, is just how to manage the link with our 
INCO's in the control center and the ground controllers at White 
Sands, so we're missing that experience base over this last 13, 
14 hours. The tests that we've lost today have really been 
minimal because we had not scheduled any TDRS testing during the 
RMS activities because we wanted to guarentee ourselves high data 
rate over the ground STDN sites. So we're not losing any test 
time today, we're just losing that experience base of being able 
to normally operate with TDRS. I put together a little summary 
genericly what is left to be done with the TDRS testing in the 
flight as it applies to STS-9, the things we would like to get 
accomplished to demonstrate before we go fly STS-9. We have not 
demonstated the text and graphics system that is only available 
through the Ku-band and the TDRS, that's one thing we'd like to 
do because it has a very high resolution text and graphics and we 
plan to use it extensively during STS-9 as a flight planning or 
replanning tool to pass messages much like we do with the 
teleprinter before TDRS, and we have not demonstrated on Ku-band 
the PM downlist, or downlink capability, which v/e would like to 
do before STS-9 and I feel certain that we'll be able to 
accomplish these tests before the end of STS-8. 

STS-8 CHANGE-OF-SHIFT BRIEFING pl2jb 9/1/83 5:15 am PAGE 1 

STONE The list of things we have accomplished on TDRS is 

much larger than the things that we have not accomplished and I 
won't go into those in detail, but we're comfortable with the S- 
band system on TDRS and we have demonstrated the Ku-band link on 
both high and low data rate, and we have dumped the OPS recorders 
through the TDRS, so the big milestones for going and doing STS-9 
are really accomplished through the TDRS. 

PAO Mark Kramer, CBS. 

KRAMER Is there any chance TDRS may not be used any 

further in this mission, or is that really a very remote 

STONE I think that's a very remote possibility that it 

would not be used anymore. We expect White Sands to be up later 
on today to reestablish an interface. When I left, they were 
bringing it up to interface with this in a simulated mode, and we 
hope to be back online with White Sands later today. 

KRAMER Are there certain things that you normally would do 

with TDRS that are more difficult then other things that you 
would normally do with TDRS? That is if you could establish 
contact, does that mean everything is open, you can transmit TV, 
you can do text and graphics, is it simply a matter of contact or 
is it the mechanism within the contact? 

STONE There are really no more things that are more 

difficult than others in interfacing with TDRS. Once we get the 
interface back with White Sands, we believe we can exercise all 
of the links with TDRS. 

PAO Gary Schwitzer, C&N? 

SCHWITZER So it's not at the point yet where you'd speculate 
about an extension for more testing of TDRS? 

STONE Absolutely not. If we get it back today or even 

tomorrow, I believe we'll be able to accomplish all of our 

SCHWITZER A little bit more, Randy, about the postponement of 
the bio feedback experiment. Just what is it that's putting Dr. 
Thornton behind schedule. Is it his enthrallment with the data 
he's getting on himself or testing of others, or has there been 
any PMC ' s? 

STONE There had been on PMC's, and I believe it has 

nothing to do with Bill's performance. I believe - - you know 
he's got a lot of relativly complex activities to do. He plans 

STS-8 CHANGE-OF-SHIFT BRIEFING pl2jb 9/1/83 5;i5 am PAGE 2 

to give a status sometime today. He told us on my shift this 
morning that he plans to give a status today of where he is in 
all the tests that he is doing, so we'll have a better feel 
sometime today on where he is and what he's doing. I really 
don't know what has put him behind, so I can't answer that in 
detail, but v;e should know this afternoon, you know, whether he's 
real far behind or just a little bit. 

PAO Do you have a follow up here? 

SCHWITZER Yes. Would you have expected - - we haven't heard 
anything from him directly. Would you have expected to have 
heard something from him by now, or - -? 

STONE No. I believe all of us expected about what's 

going on with Dr. Thornton. He is trained to do this solo. 
There's very little ground support required for the testing that 
he's doing, and in fact he is tho PI, if you will, on many of 
these experiments that he is conducting, so there's very little 
ground interface, and that's what we expected; that he would be 
off doing it very independent of the Control Center and we'd get 
status periodically. 

PAO PI is Principal Investigator. Let me take one more 

question here in Houston, then we'll go to Kennedy. Carlos 
Byars, Chronical. 

BYARS One quick followup on the TDRS thing. Yesterday we 

were told that the there were about 19 particular tests that 
ya'll were trying to accomplish on this mission, tests of the 
TDRS White Sands system. How far are you along with that. At 
that time, you know, they were saying everything; they were about 
on schedule, maybe one down, or whatever, but then since then the 
thing is, in Terry White's words, l think the computer went 
belly-up, and ya'll haven't been back since, so could you give me 
that, and then I'd like to ask you something about the cold 

STONE Okay. If I'm counting up my tests right on my 

little cheat sheet here, we've accomplished, I think, 11 of the 
19 tests that were scheduled, and that would leave 8 to go. Not 
all of those were as high a priority as others. In fact, we had 
pared down that list of 19 to, oh I don't know, 12 or 13 before 
the flight just to make sure that we had plenty of time to 
accomplish the high priority ones, and as things were going so 
well the first two days of the flight with TDRS, we put those 
ones that we'd scrubbed out back into the list, so we're actually 
very close to, you know, completing the original pared down list. 

BYARS On the cold testing, how well did spacecraft 

perform on that? Do you have any particular data on it? was 
there anything that came out of it that surprised you at all? 

STS-8 CHANGE-Or-SHIFT BRIEFING pl2jb 9/1/83 5:15 am PAGE 3 

STONE No. No surprises whatsoever. There were no 

problems on the Orbiter in this cold attitude. The canopy area 
of the cockpit at last report was down up to about minus 80 deg 
F. It could have gone as low as 150 deg before we would have 
aborted out of that cold attitude and minus 80 was about what had 
'en predicted by the math model, so we feel comfortable that we 
were predicting the vehicle response, at least for this attitude, 
quite accurately. 

PAO And now the Kennedy Space Center, Florida. 

TALLEY Randy, Olive Talley with UPI. A couple of 

questions regarding TDRS, please. First of all, how concerned 
are you about the TDRS problem, and secondly, if for some reason 
you did not get any more time with the TDRS testing the rest of 
the mission, one, could it be cut short, and secondly, have you 
done enough to ensure that TDRS could be used and STS-9 would 

STONE Well let me answer the last question first. We 

would certainly go ahead and fly STS-9 with the experience that 
weWe had with TDRS to date, so I don't believe that would be 
even a consideration. We are concerned about the problems we're 
having with the ground system; however, everyone must remember 
that this is a very new system and a very complex system, and 
it's just suffering normal high technology growing pains, and I 
think we'll get them straightened out in a day or two, and it'll 
operate as advertised. 

PAO You want to get throughout that shortening of 

flight if it's - - 

TALLEY If you were not to get TDRS back up, would you 

consider cutting the mission short a day since it was extended 
for that purpose? 

STONE There has been no consideration to date about 

shortening the mission if we don't get TDRS back, and in fact, I 
doubt very seriously if we would do that. It's certainly a 
possibility, but I don't think there'? much probability in it. 
There's enough things that we have on our shopping list of items 
that we'd like to get done that we could fill up that extra day 
even if we didn't have TDRS. 



Okay back here in Houston. Paul Recer, Associated 

STS-8 CHANGE-OP- SHI FT BRIEFING pl2jb 9/1/83 5:15 am PAGE 4 

RECER Yes, I wanted to ask you about the payload flight 

test article. The press kit has an inertial mass unit of 64,000 
slug ft squared. I understand the slug, but I don't understand 
the ft squared. 


STS-8 CHANGE-OF-SHIFT BRIEFING pl2jc 09/01/83 5:15 am PAGE 1 

STONE Well, I'm not a physicist but that's giving the, 

you understand, the slugs is the mass of the vehicle and the ft 
squared is a function of the, and I'm going to use another word 
that you are going to ask me what it means, probably, is the 
inertia of the object that you're dealing with, and it has to do 
with once you put something into motion, how hard it is to stop 
it and how hard it is to start it into motion. It's just the 
units we use for inertia. 

RECER I understand the slug is 14.59 kg, okay, but the - 

STONE You remember it better than I do. I didn't 

remember that. 

RECER Alright, the sq ft is what I don't understand in 

your expression here. Is that a function of motion? In other 
words - - 

STONE No. It's a function of how far it is from - - well 

I guess I'd better not try to explain it since I'm not sure I 
understand, exactly, the units of that measurement, but the PFTA 
article is designed so we can pick it up in a couple of different 
places which changes its inertia. It's dif f icultness to start 
its motion and stop its motion. If you want a physics discussion 
on the units, I'll get somebody that's certainly more qualified 
than I am to talk about it. 

RECER Is that a function of torque associated with 

(garble) center of gravity? 

STONE It's the moment that you - - yes. It's where the 

center of gravity is and where the grapple points are on the 
fixture. We can actually change the inertia by grappling it in 
different places and changing the CG with respect to the arm of 
the RMS. 

RECER In an attempt to convert this to my somewhat 

pedestrian intellect, can you express in terms we might 
understand the value of the force that the arm is imparting to 
move this test article. In other words, do it in pounds, the 
amount of force used to move the object in orbit. How many 
pounds would that same amount of force lift one foot on earth, 
for instance? 

STONE I can't answer that, Paul. I don't know the answer 

to that. 

PAO Craig, can you answer that? 


I can't understand the question. 

STS-8 CHANGE-OF-SHIFT BRIEFING pl2jc 09/01/83 5:15 am PAGE 2 

PAO Did you have a question? Did you have a question, 

Craig? Craig Covault. 

PAO If Craig can't answer it, then - - 

STONE Than I guess X'm covered. 

PAO Yep.. You could say anything and get away with it. 

COVAULT I thought they were scheduled to bring the rats out 

this morning. I was asleep. Did they bring the cage out and 
shake it hard, or do anything like that? 

STONE Not to my knowledge, Craig. I don't think the - - 

there is some TV scheduled of the enclosure later in the flight, 
but it wasn't this morning. 

PAO Carlos. Carlos Byars. 

BYARS Yes. Talking about the slug on the moment arm and 

what have you, - - 

STONE It's not a slimy little creature that crawls 


BYARS Yes, I know. It has to do with moments of 

acceleration and that sort of good stuff, but like Paul, I have a 
problem of trying to translate it into something my readers can 
read, and, of course, the arm is designed to handle much larger 
pay loads. With the te..t on the arm that you're doing with the 
test article now, how does that fit into the scheme. How does 
that compare with what you might have to handle with one of your 
larger scheduled payloads? 

STONE The PFTA article Is kind of a intermediate step in 

testing the arm. It is considerably heavier than the previously 
payloads that we have manipulated. The purpose of manipulating a 
heavy article like the PFTA is to understand the arm dynamics 
when you start moving this pay load, when you stop the arm, put 
the brakes on the arm, it actually moves on a little bit further 
than where you stop it, and then it moves back, and with the data 
we're gaining from this waste test article, we can extrapolate up 
to the 20,000 lb plus payloads that could be flown and the arm 
could be required to move around. 

COVAULT Has there been any difficulty at all so far that's 
shown up on your printouts down there. From what we've seen on 
TV, everything seems to be going just as slick as can be 

STONE It came out of the latches very smoothly this 

morning. It's very easy to move around. The tests that have 
been going on, we put it in various positions, various arm 

STS-8 CHANGE-OF-SHIFT BRIEFING pl2jc 09/01/83 5:15 am PAGE 3 

positions and fired jets on the Orbiter to actually impart a 
torque to the whole system, and then watched the reaction of the 
arm, and there has been, you could see the motion on TV, but it's 
been very slight and about what was predicted. 

PAO Paul Recer. 

RECER What is the maximum mass that the craft could 

handle with that arm? Is that limited by the mass of the 
spacecraft itself, or is it somewhat smaller than that? 

STONE I believe the largest weight payload that the arm 

is designed for is 30,000 lb, but I'd have to verify that number 
for you. I'm not absolutely positive that 30,000 lb is right, 
and of course, the Orbiter can lift more than 30,000, so I 
believe it's an arm limitation and not an Orbiter performance 

PAO Gary Schwitzer. 

SCHWITZER The camera that's down. Randy, is that the one that 
gave the good Earth shots yesterday with the tail in the (garble) 
it is? 

STONE I think it is. Yes sir. I'm not absolutely 

positive what camera was selected at that time, but thinking 

about it, it was a color view and it was a wide angle view back 

over the tail, so I am nearly certain that that is the camera 
that's down. 

Anything further? Paul Recer. 

This 64,000 slug ft per sec, is that based on the 

I think it is, Paul. Yes sir. 

Well then, with attach .3, the inertia would be 


attach .5? 



STONE The inertia would be less. Yes sir. The attach . 

is right on the end, so it puts the most mass the furthest away 
from the end effector. 


of you. 

Anything further? Thank you, Randy, and thank all 


STS-8 CHANGE-OF-SHIFT BRIEFING pl3ja 09/01/83 2:00 pm PAGE 1 

PAO - - with Flight Director, Harold Draughon. Let's 

do our usual review of the log, and then go to questions and 
answers. I understand there's people at the Cape and Marshall 
this time. Harold. 

HAROLD DRAUGHON Okay. The majority of today's activity was, in 
fact, all of this afternoon's activity was centered around the 
RMS operations. All of those operations were completely 
successful, and we finished them almost exactly on schedule. In 
general, there were two basic kinds of test that we v;ere doing. 
One was checking interaction - - well, the whole thing was 
checking interaction between the two units, either the RMS and 
the Orbiter, and how they excite each. One, you do things with 
the Orbiter, and see how it stimulates the arm, and what the 
response there is. The other one is to move a payload on the arm 
and see how that reflected into the Orbiter itself. There were a 
number of tests run today and no real suprises at all. The crew 
did note some of the dynamics that we had anticipated and 
reported those. That data was gathered on some sensors, body 
sensors onboard. And will be reduced postflight. The intent in 
collecting this data is to go in and update the models of the RMS 
so that we can analyze and simulate more accurately the dynamics 
and response characteristics of the arm as we handle higher 
weight pay loads that are programmed in future flights. There was 
one, getting away from the RMS, there was a single incident with 
the waste control system, and that was fairly a fairly innocuous 
thing. There is a valve in that system that is used to, in 
effect, flush the thing and that valve stayed open, partially 
open, and we had to recycle it once and that closed, secured that 
valve, if you heard us talking to the crew about that. We had 
another, a second incidence in the Commander's communications 
unit, his wireless headset unit, and we had to go to an alternate 
configuration on that. We have not conclusively found out which 
one of those pieces of hardware has a fault in it. Probably 
we'll do that tomorrow morning, but Truly has a working unit 
onboard. He's operating with one of the wireless units in the 
handheld configuration and broadcasting back to a speaker on the 
wall. Camera status of the payload bays the D camera, which is 
the wide angle color camera on the starboard side forward, is not 
working at the present time. We suspect that that's a closed 
iris, a stuck, closed iris. There is some potential that a 
procedure that the people have worked up that might recover that 
camera. We'll send that procedure up to the crew tonight and 
then try that tomorrow. What it amounts to is cycling power in a 
very precise way on the camera electronics in the hopes of 
reinitializing those circuits in the logic and having it come up 
and bring the camera back with it. The C camera has a pan and 
tilt and a focus problem, and the elbow camera has a slight focus 
problem. When you're at full zoom on it, it won't precisely 
focus. None of these have, they're nusiances, none of them are 
going to affect the content or the data return from the RMS 
testing that's going on. There are just too many ways to get the 

STS-8 CHANGE-OF-SHIFT BRIEFING pl3ja 09/01/83 2:00 pni PAGE 2 

visual data that you need from the kind of tests we're doing. 
TDRS today, we've just continued on the same kinds of things we 
were doing yesterday. The Ku-band has been exercised some 
more. The two new elements, one you specifically knew of, that 
has been checked out is the TAGS system, which is the Text And 
Graphics System. It gives you a hard copy very similiar to what 
you get off of a Xerox machine. If you ever saw one, and we can 
get one if somebody would like to see one, it really does look 
like it just came off a repro machine down the hall, a very high 
quality repro product. We have sent some of those up. A couple 
of them did not work, and some of them did and were very high 
quality. The ones that didn't work were because they were 
transmitted at times when the communications link was poor, and 
we're going to monitor that activity a little closer in the 
future to make sure that that's exactly what was going on, but I 
know for a fact that we know when they were transmitted and I 
know what the COMM was. At that time, we were having dropouts 
with White Sands. We will send all five of those test messages 
again just to verify that they all can be done correctly. The 
next five or six REV's at least, the team has decided to go back 
to a, what you'd call a OPS normal mode on the TDRS interface and 
TDRS usage. We pushed the system, and I believe rightfully so, 
for the last 10 or 12 hr, and went ahead and tried all the 
different modes that we had planned on TDRS, and when all the 
hardware and all the systems were up, as I said yesterday, the 
TDRS gave us the kind of circuit margins, the kind of video that 
we all thought it would. We do continue to have the kinds of 
problems that I discussed yesterday, the very same nature 

happenedagaintoday, andthosearethatthegroundstrings,at 
White Sands, at times go down, don't operate. Either they don't 
go to the correct mode, or they don't acknowledge requests to go 
to a particular mode, or they don't integrate 7ust right, and 
therefore, we don't point antennas precisely where they ought to 
be pointed. Those kinds of things are still happening. I don't 
expect that we will resolve those problems during this flight. I 
do expect that we will resolve most, if not all of them, before 
flight 9, but we need to continue to gather this data that we are 
gathering now so that we know what kind of problems to work on, 
and we're doing that. Another problem that we've had is on 
another issue, I guess we ought to talk to you about. You asked, 
yesterday, about Bill Thornton's work. Bill gave us, came on the 
- -, we saw him twice today. Bill doesn't stay on the COMM a 
whole lot, as you probably all noticed. Twice today, once when 
we were doing some TV work, Bill was up in the flight station and 
again later in the day, towards the middle of the afternoon, we 
had asked him to give us a status report of where he stands on 
all of his experiments since it's not possible for us to follow 
that activity on the ground very well. He did that. I have it 
here in writing and if anybody's interested in it, then after the 
session's over with, I can get you a copy of it. It's more or 
less a bullet chart, what are the things he's working on and kind 
of a "how goes it" on each of those. I believe that's basically 

STS-8 CHANGE-OF-SHIFT BRIEFING pl3ja 09/01/83 2:00 pm PAGE 3 

all I have to say for today's activity. The follow-on for 
tomorrow, as far as plans are concerned, there is, when I left a 
few minutes ago, there is nothing in the works that would dictate 
any changes in the plans for tomorrow for the TDRS activity in 
the afternoon. It will be exactly as it's on the books, and we 
intend to come back tomorrow morning and do that, so I know of no 
plan changes for the immediate future. The TV pass, TV 04, that 
was scheduled, I believe it was this morning that it was 
originally scheduled for, that was scrubbed, it was to cover some 
of the medical experiments onboard and it was delayed because 
they just weren't far enough along in accomplishing some of those 
that would make something interesting to monitor, and so we 

delayed it. It's going to be on REV 79, 69, REV 69 on flight 

day 5. That's where we have asked the crew to reschedule that 
activity, so you might want to cue in on that a little later. 
With that, I'll entertain any questions you might have. 

STS-8 CHANGE-OF-SHIFT BRIEFING pl3jb 09/01/83 2:00 pm Page 1 

PAO Please wait for the mike. Tom 0' Toole, Washington 

Post . 

O'TOOLE (Washington Post) Harold, if this were flight 9 instead 
of flight 8, how would these TDRS problems affect all those 
experiments? How much would you lose because of the TDRS 
problems your 're experiencing right now. 

DRAUGHON You would lose a significant amount if - - 

O' TOOLE Would you lose astronomy, life sciences, or both? 

DRAUGHON I can't comment on that. I'm not working flight 9, 

and I'm not that intimate with which ones of them have high 
quantities of data, and then the high bit rate data that I know 
that is required by some of those experiments. I know you would 
lose a lot. I have heard enough discussions about what it takes 
to recover all of it. There is a large amass of data that's 
coming off flight 9 and we intend to cover that. But it isn't 
flight 9, and it is the first time we have used TDRS, and we do 
expect to get right to work after the flight. You know, that's 
why we flew this TDRS on 8, as a checkout, was to find out what 
these problems are, and we've just got to get some groundrules in 
and streamline (garble) - - 

0' TOOLE Would you lose as much as half of your experiments 

on 9? 

DRAUGHON No. You wouldn't lose that much. In general, 

timewise is the only thing I can relate to and that's not a true 
correlation, but timewise, it's probably like a quarter. 

O'TOOLE One more. Are all the problems software problems 

on the ground? 

DRAUGHON Not every single one. The vast majority, in as far 

as the reports have been coming to me, the vast majority are 
software-related, and that's a maturity thing. We've never used 
it before, but they seem to be software - - the whole system at 
White Sands, configuration wise, what the system is going to 
configure to do, it's all controlled by software. Those are 90 
something percent of the problems. There have been some absolute 
hardware failures. They lost a power amplifier once in one of 
the - - that was not software, but by and large, most of them 

PAO Craig Covault, Aviation Week 

COVAULT Harold, I have three questions on the PFTA work 

today. The elbow camera is fairly important. You need it to 

STS-8 CHANGE-OF-SHIPT BRIEFING pl3jb 9/01/83 2i00 pm Page 2 

look down on the trunnion pins and the guides to get your fore 
and aft references. Do you have any concern about loss of the 
elbow camera on the arm? 

DRAUGHON No, Craig. There are a combination of three 

cameras that we've done work in the lab here, and they are 1-g 
mockups, with Dale before flight, and there's three different 
cameras that, as long as we don't lose all three of them, we can 
handle the visual aids that you need to redock. 

COVAULT Okay, and secondly, do you recall how much time it 

took him to do that direct drive berthing? 

DRAUGHON No, I don't. It took a little - - we knew it was 

going to be - - it is the most difficult task they've ever been 
asked to do with the RMS, and it took a little bit less, and I 
might have some numbers here that will tell you what we thought 
it was going to be. We had allocated 40 min for that, and it was 
a little bit less than that, but not a significant amount. 

COVAULT And this kind of ties into the fact that the times 

played quite closely to the simulator. I was a little surprised 
to hear Dale say that the dynamics he saw were quite similar to 
the manipulator development (garble) dyanmics because that's 
block ana tackle 

DRAUGHON So was I. Yes. 

COVAULT Do you, were you surprised to hear that it was 

(garble) - - 

DRAUGHON Yes, I was. I think, maybe there were some people 

that weren't, but I was and most of the other people I've talked 
to were surprised that it was that kind of correlation. Like you 
say, that one has got wires supporting, counter-balancing right 
over the bay, and you get away from there and the thing is not a 
true, it's not truly offloading what you're trying to do there. 
You wouldn't think it was a good simulation from that standpoint, 
but, in this case, it turned out to be. 

PAO Way back here in the third row - - fourth row 

LINDA COLSER (National Space Institute) i was wondering about 
that refrigerator that Doctor Thornton eluded to. Is that a 
refrigerator just used for his experiments, and will that have 
any effect, that he had to repair it . 

DRAUGHON It is used just for his. He did fix it, and the 

input that I got was that some of that work would be rescheduled, 
so it's not a complete loss, i don't know how much of it was 

STS-8 CHANGE-OF-SHIFT BRIEFING pl3jb 9/01/83 2:00 pm Page 3 

PAO Any further questions In Hou - - back over to Craig 

Covaul'c . 

COVAULT A couple of TDRS questions. I heard the term 

encryption used today and it reminded me that you do have a, for 
security capability, encryption features. 


COVALUT Are you, in fact, exercising those with TDRS. 

DRAUGHON Through TDRS, the only thing we're doing is 

checking them out, making sure they are operational. We have 
plans to put the encryption on-gear, online for pre tests once in 
the flight, and just to verify that it works, and that we can do 
all the things we do while in that mode, and by do all things we 
do, I mean conduct our normal business: flow data, send 
commands, send text traffic, that kinds of thing, to have voice 
going through the crypto gear, and that is all it is, is a 
demo. Once we're in it, verify it, we come right back out of 
it. The flight is not being flown in an encrypted mode. 

COVAULT When you're in encryption, is it, in effect, an 

Orbiter box that's doing the encryption, or is it a TDRS flow 
that - - I guess it would have to be the Orbiter though. 

DRAUGHON I •-.hink there's equipment on both sides that are 


COVAULT Okay, and looking down to Spacelab or, flights 5, 6 

away from now, when you're using TDRS routinely for civil 
flights, will you be using encryption on it, or will just 
encryption be used for the military flights? 

DRAUGHON That's a debate that, and I'm a litte bit 

uninformed in this area, but what I believe to be the case is 
that that is being debated at this very time. At the current 
time, I tnink the current groundrule is that, we don't operate 
encrypted except when we have to, but I think that's being 
debated and there's some consideration being given to, perhaps, 
flying encrypted all the time. It's the simplest thing to do, to 
do it one way. 

COVALUT And one last one, on the graphics pictures that you 

sent up, what pictures - - pictures of what did you send up - - 
test patterns, like midnight television, or what? 

DRAUGHON No. They weren't that good. There was a standard 

- - one of them was a standard - - all the photo guys have seen 
them - - they're different sized bar charts so you can check 
resolution and those kinds of things, the kind of thing you see 
them check out repro machines with, and, in addition to that, we 

STS-8 CHANGE-OF-SHIFT BRIEFING pl3jb 9/01/83 2:00 pm Page 4 

sent up- - we have a one page summacy of each day. It's a one 
page piece of paper that's got each flight day on it - ~ you've 
seen it, it's the one day mission summary for 24 hr across each 
line, and we sent Richard up a version of that that reflects how 
we're going to add in the new flight day. He never got one of 
those to go in his flight data file. So, we sent him one of 
those, and then we so- - the other 3, other 4 pages that we're 
sending to him are products that are used, that are already 
defined that are planned to be used in Spacelab since they've got 
a large volumn of traffic and a lot of data that's going to be 
going back and forward, we went and got their sample formats of 
what they hope to need, and we'll see if we can demonstrate 
them. They, indeed, do want that their resolution and the 
character sizes are compatible. 

fAO Okay, why don't we switch now to Kennedy Space 

Center for questions. 

PAO (KENNEDY) This is Kennedy Space Center. We have some 

HAROLD SAILSTEAD (Baltimore Sun) In the test with the arm 
today, did the astronuats report any sense of movement in the 
Orbiter during the t st, or did they see any motion of the weight 
at the end when the craft, the Orbiter itself, was maneuvered? 

DRAUGHON They never reported or made any comments with 

regard to motion imparted on the Orbiter by the arm. They did 
make note of cases where there was dynamic motion going on after 
you'd make a particular set of inputs to the arm with this 
payload attached to it, and then stop that motion, and they'd 
talked about the oscillation, and the size, and how long it took 
to DAP it out and, in fact, on a couple of occasions, we happend 
to have the TV on and you could see that motion, that oscillation 
in realtime on the ground. That is exactly the kind of data that 
we were after. 

JOHN WILFORD (New York Times) How long did the RMS operations 

DRAUGHON Roughly 5 hr, I believe, or 5-1/2, so about 5-1-2 

hr . 

WILFORD And was Gardner the only one who operated it? 

DRAUGHON I can't say that he was absolutely the only one on 

the hand controller, but Truly there were two guys checked 

out on the fully checked out on the arm for this flight, and 

It's Commander Truly and Dale, This first session. Dale did. I 
don't know for sure who will do the second session. I suspect 
that Truly will. You'll remember that he already was certified 
on the arm back on flight 2, so I suspect he'll do at least some 

STS-8 CHANGE-OF-SHIFT BRIEFING pl3jb 9/01/83 2:00 pitl Page 5 

of the work tomorrow. I do know that there's a fair amount of 
support things that have to be done when you're doing these 
particular tests in changing initialization data in the computer, 
in doing things with the auto pilot on the aircraft to set up 
maneuver rates, or put in thruster firings, or those kinds of 
things, and they are - - Truly was providing that kind of support 
to Dale when the testing was going on. 

PAO (KENNEDY) That's all from Kennedy 

PAO Okay, let's go now to Marshall Space Flight Center. 

PAO (MARSHALL) Marshall Space Flight Center. We have some 

STS-8 CHANGE-OF-SHIFT BRIEFING pl3jc 09/01/83 2:00 pm PAGE 1 

DAVE DOOLING (Huntsville Times) Harold, during the PFTA 
operations, was there any effort to have crewmen do a Gordon 
Fullerton number and bounce around in the middeck and see if that 
caused any additional wiggle at the end of the RMS? 

DRAUGHON No. We did not, and on the other side of the coin, 

we also didn't invoke any restraints on what the crew could do. 
There are tests where sometimes we do ask the crew to be fairly 
stable and not be ricocheting around. The kinds of masses - - 
the kind of dynamics you'd have to have to mess up these tests, 
you'd need something heavier than that, with a payload this 
heavy on the arm, you're not going to disturb it with a person 
rattling around inside the cockpit. 

DOOLING Okay. Has there been anymore on the hydraulic 

system. You had discussed with us yesterday a leak in the number 

1 system. 

DRAUGHON Yes, an intersystem leakage, not a leakage 

overboard but a leakage between two parts of the system. That 
system, we have been running a circulation pump. Since 
yesterday, that pressure is up above the values that I told you 
yesterday. I don't have the numbers with me, but it's up in the 
2300 psi range and is maintaining. There has been absolutely no 
degradation or any additional concern since yesterday. 

DOOLING Okay and from - - a little bit more on the TAGS. What 
kind of a printer is being used on the vehicle for this, and if I 
understand you correctly, by sending the addition flight day 
chart up to Truly, this became the first operational use for it, 
to actually get material up there. 

DRAUGHON That is true, and I honestly don't know what the 

print mechanism is for that guy. We can find that out for you 
and get that information to you. I have seen products that have 
come out of it. The paper is fairly slick, but not as slick as 
some of the stuff you have seen, and it doesn't smudge or 
anything. It's real good, high quality paper and a good crisp 
copy, and I guess it was the first operational use of it because 
he did not have that CAP timeline until we sent it to him. 

DOOLING Okay, and finally, has anybody checked on the rats to 
see how they're adapting, or even surviving? 

DRAUGHON Yes. He didn't give us the answer, but Bill 

Thornton today, and when he gave us his summary of the things he 
had done, one of them was that he had looked at the animal 
enclosure and monitored what was going on in there, but we only 
got the status of it, that he did it, and he didn't tell us what 
he observed. 

PAO (MARSHALL) No other questions from Marshall. 

STS-8 CHANGE-OF-SHIFT BRIEFING pl3jc 09/01/83 2:00 pm PAGE 2 

PAO Okay. Back to Houston. Any further questions 


Would you please let me know the present status of 


DRAUGHON The first apogee kick burn after the PKM burn - - 

you know, they did the one burn yesterday shortly after deploy. 
The next apogee kick maneuver has been done, and I don't have the 
Orbiter elements that resulted from that. It was a nominal burn, 
and everything's really coing successfully enough that right 
after that they concli'^ed that they want to move their next burn 
up to tomorrow. It was supposed to be 2 days from now. They're 
bringing it forward 1 day, so things, evidently, are progresssing 
quite well. 

PAO Any further questions here? 

What kind of nuisance was caused by the travel of 
waste control system? 

DRAUGHON The way that manifested itself with that particular 

valve not closing all the way, and it was a small leak, but cabin 
atmosphere was leaking out and it was affecting the cabin 
pressure and the partial pressure of 02 in the cabin, both of 
which we can handle by repressing with either oxygen or nitrogen, 
but that's how we caught, that's how we realized that there was a 
problem, and we saw it enter another tank downstream of that 
valve increasing in pressure, and we just asked them to recycle 
the valve. They did, and it stopped, so it was really a non- 

PAO Okay. More questions? If not, we'll shut it 

down. Thank you. 


STS-8 CHANGE OF SHIFT BRIEFING pl4j 9/2/83 4:00 a.m. Page 1 

PAO Good morning, Flight Director Randy Stone is here 

to give you a run down on the orbit I team activities just 
concluded. Randy. 

STONE The primary activities accomplished this morning bv 

my team were to perform 2 OMS burns, to lower the Orhi tor's 
altitude from 160, approximately 160 nautical miles down to 121 
nautical miles circular. The purpose of these two maneuvers to 
get us to the lower altitude is to support an evaluation of 
materials at a lower altitude and how they interact with oxygen 
molecules in Earth orbit. Once we accomplish the RMS testing 
this afternoon, we'll put the Orbiter into an attitude that has 
the payload bay pointed into the velocity vector of the orbit to 
try to drive what few molecules there are in the, at this 
altitude of oxygen into a special materials package that's 
located in the bay of the Orbite. And the purpose of this 
experiment is to evaluate insulation materials and other 
materials to be used on future long duration space missions and 
to determine their suitability for use in space. The 2 OMS burns 
went with absolutely no problems today, very smooth. Once those 
were accomplished, we did a number of DTO's or detail test 
objectives with the TDRS satellite which were accomplished 
sucessfully today. We did a maneuver with the Orbiter, rolling 
maneuver to test the performance of the Orbiter antennas as it 
rolled past the TDRS line of sight, that test was accomplished on 
orbit 49. We also did some manual acquisition of the TDRS 
satellite with the crewmen manipulating the Ku-band antenna in 
the Orbiter moving it off the nominal line of sight to the TDRS 
and then letting it reacquire and those tests went very well. 
The TDRS coverage that we were getting today on my shift was much 
better than yesterday since we had no, no sucessful passes with 
TDRS yesterday on the orbit 1 shift. We have had comm every 
pass, every line of sight time with the TDRS satellite all 
morning today. We've had some dropouts of the data but in 
general the communications with the satellite had been very 
good. The primary activities for this afternoon will be the RMS 
testing and I'll let Harold Draughon tell you about that, this 
afternoon. If there's any questions, I'll be happy to answer 
them for you. 

PAO Wayne Dolcefino, KTRH. 

DOLCEFINO Randy, I was curious about the health of the crew, 
I didn't see Guy Bluford yesterday and I was wondering Dr. 
Thornton was sort of in and out. I was wondering in general how 
they are doing up there? 

STONE There have been no PNCs and the crew have been 

accomplishing all their tasks as assigned. I heard Guy this 
morning on the loop and sounds just fine, in fact all the crewmen 
have sounded good the whole flight. 

STS-8 CHANGE OF SHIFT BRIEFING pl4j 9/2/83 4jO0 a.m. Page 2 

PAO Get Paul Recec and then come over here. 

P'KCER we were told, i think it was yesterday that we've 

gotten 11 of 19 TDRS teats completed. Did you pick up the other 
8 today? 

STONE Have not accomplished all of the other DTOs, Paul, 

I don't know what the head count la right now, I understand that 
at the next change of shift briefing they hope to have the TDRS 
manager from headquarters give you a full run down on that and 
I'd rather leave that for hira. But we have accomplished at least 
two more on my shift of the DTOs that, that were in that 19 and 
so we're making progress. 

Two totally unrelated questions, first if i 
understood correctly amoung the printer messages sent up to the 
crew this morning included the news of the day, were they told 
about the Korean airliner disaster as part of that? 

STONE Are you asking me if that teleprinter message went 

up, yes sir it did. We gave the crew a summary of the world news 

today and that was of course on everybody's list of new's items 

and that went up to the crew today. 

Okay, second question. Based on the sort of off 
again, on again record of TDRS operations on this mission, the 
question reoccurs, is there any doubt in anybody's mind that 
that's going to be really ready for the next mission? 

STONE Well of course we all believe that it is, we're 

making progress just in the last couple of days on solving the 
problems that we've had with the TDRS system. Of course It's not 
my judgement to decide whether we're ready to fly for the next 
flight or not but I would believe from what I have seen to date 
that we will solve the problems and be ready to fly for STS--9 as 

PAO Okay, lets go to 


KSC PAO KSC has a couple 


the Kennedy Space Center for 

Of questions from Olive Talley of 

TALLEY Yes Randy, first of all, do you have a flight plan 

for Sunday, could you sort of review the highlights of the flight 
plan and discuss the various activities they will be doing on 

STONE Let me think what flight day Sunday is, today is 

flight day 4, that'll be flight day 6. That'll be the almost 
identical to the flight day 5 that's in the published crew 
activity plan. We're inserting the extra day or the 6th day into 

STS-8 CHANGE OP SHIFT BRIEFING pl4j 9/2/33 4:00 a.m. Page 3 

the flight, will actually be tomorrow wij . be that extra tlay that 
we're putting into the flight plan and tli flight day 6 will be 
what has been the flight day 5 flight plan all along and its 
primary things are, will be the flight control system checkout 
and just cleaning up the vehicle, getting ready for deorbit. 

TALLEY Might you have any more time for any (garble) you 

hadn't planned before? 

STONE Yes, and that'll be inserted into the flight plan 

in Saturday's crew activities and we have some additional RMS 
testing schedule about 2 hours, we've made room for whatever 
cleanup TDRS testing we need to do and we have added two DTO's 
with the Orbiter startrackers to help us get ready for rendezvous 
maneuvers on STS-11 and 13. 

TALLEY Regarding the two extra hours of RMS testing, what 

day is that on and secondly can you tell us what that test will 
include. Are they going to get the ARM out again and maneuver 
it, or what? 

STONE The flight day that that'll occur on will be 

tommorrow's crew activity day or flight day b of the mission. 
What's in that test is actually more of the same of what you're 
seeing today, or will be seeing today. It's just running the ARM 
in some different modes that we didn't have time to do in the two 
scheduled test periods. 

TALLEY But using the PFTA? 

STONE Yes, it will be using the PFTA and the ARM and the 

PFTA will be deployed. 

KSC PAO KSC has no further questions. 

PAO Any futher questions here. Okay, thank you very 

much . 



PAO Today, we have the offgoing Flight Director, Harold 

Draughon, to go over the Orbit 2 Team shift, just ended. Also, 
Robert 0. Aller, Director of Tracking and Data Relay Satellite 
Systems at NASA headquarters. Al, why don't you run over the 
shift just ended log first, and then we'll go on to questions, 
and perhaps, if Bob has any statement on TDRS, we can go to that. 

DRAUGHON Okay. The shift that I covered was, essentially, 

from the crew's - - their noonday meal to putting them to bed 
just a few minutes ago, and the primary activity this afternoon 
was dealing with - - it was very similar to yesterday's test 
sequence, and it was dedicated to the use of the RMS and handling 
the PFTA, the Payload Flight Test Article, running through a 
number of maneuvers with that payload on the arm, and putting the 
arm in particular configurations, and firing certain attitude 
jets to gather interaction data between the arm and the 
Orbiter. All of that testing went exactly as planned. It 
couldn't have been more perfect. The times were, times are the 
thing that we sometimes get a little concerned about because it's 
hard to simulate those activities here, in 1-g. But, we came out 
very close even on the time allocations that we had made. We do 
have two or three things that we call shopping list tests that we 
would have worked in, had we gotten done a little bit early. 
Since we did not, we've made some plans to pick those up on the 
extra flight day that was recently added to this particular 
flight. The difference in today's tes ■ '.ng and what we did 
yesterday was in the point that which we grappled the PFTA. 
Today, we're on grapple fixture 5, which is the actual grapple 
fixture on that unit. As I said earlier, though, it was 
absolutely normal all day long. No difficulties were encountered 
whatsoever. As far as other activities today, we started taking 
some data with one of the high rate dosimeters, which is 
something that's been planned on a couple of flights. We tried, 
for the first time on this flight, what's called a roll IMU 
align, and that is a new concept in aligning the inertial 
platforms on the Orbiter where we get in a particular attitude 
and go into a certain, just pure, body roll, and let the STAR 
trackers scan the celestial sphere, and pick up stars of 
opportunity. We have a STAR table with 50 stars predefined in 
it. If a pair of those stars are detected by the STAR trackers, 
we can take the angular data from those measurements. If they 
meet a certain separation criteria and use, they'll still have 
the platforms, and it alleviates us having to go to particular 
attitudes and sight on particular stars. That's something that 
will have a payoff on future flights, on us, in having to make 
special maneuvers and will, potentially, free up some more crew 
time to do experiments. Wo started the EOIM experiment just 
before the crew went to bed. That is the reason we went to - - 
I'm sure Randy Stone covered this morning, or whatever time of 
day it is, covered on the last shift, the fact that, this morning 
in the crew's life, that we dropped the orbit down to around 120 
circular. The reason for that was to get down where the oxygen 

STS-8 CHANGE-OF-SHIFT BRIEFING pl5ja 09/02/83 12:00 NOON PAGE 2 

molecules are more concentrated at the lower altitude to gather 
data in this oxygen interaction experiment. We entered that 
attitude at the completion of the RMS test, which is essentially 

- - those samples are mounted along the minus C axis, or straight 
up out of the payload bay, and the way you do that is, you fly 
with the payload - - the way you run this particular experiment 
is, you fly with the payload bay forward, ramming those samples 
into the velocity vector, or into oxygen molecules. It might 
reside on your flight path, so, that data collection period has 
just started. As far as little instances that occurred on the 
shift today, or carryovers from the previous shift, the first one 
I guess we ought to talk about is the TAGS system, which is the 
Text; And Graphics System. The last time I was over here, I told 
you we had just sent up some messages, some pictorial messages, 
hardcopy data for the first time via the other Ku-band TAGS 
system. That was true. We haven't accomplished a whole lot 
since then using that system, and we now believe, after 
completing two tests on my previous shift, and some other testing 
that was done on the shift prior to that, that we have a hard 
failure in that system. We won't know exactly what it is, of 
course, until we get the hardware back postflight, but it looks 
like something in the video part of that system has failed. 
While it was up and working, the samples that we got through the 
system, according to the crew, were excellent quality. I have 
seen some that have been done on the ground when we send data 
from the control center over to the simulators. It's a similar 
set of equipment, and as I said yesterday, they are very high 
quality. We had a repeat of the incident that I discussed 
yesterday having to do with the gate valve and the Waste 
Management System. This is a particular valve in the system that 

- - the way the problem manifest itself is it that you can get, 
we think we're getting some dirt, trash, what have you, on a seal 
in the Waste Management System, and we're getting a certain 
amount of leakage of cabin air down through that system. It's - 

- you can think of it as jiggling the handle in your bathroom at 
home if you want to. It's about as scientific as the fix is. We 
recycled the system and it cleared yesterday. Today, we tried 
tha once and it didn't. We repeated it and it and it cleared the 
second time. That was kind of near to the end of the crew's day, 
so, we passed a procedure to the crew on how they should go about 
using some of the devices they have onboard for washing off the 
0-ring seal and cleaning up that area, and we think that will 
rectify the problem. In fact, after we cycled the valve the 
second time today, it locked up solid and was not leaking anymore 
than it had - - there's always a little bit of speck leakage in 
that system, but it was back to, essentially, the leakage values 
that we had had on the first two days of the flight, before the 
first incidence. So, it's nothing that we think is a problem. 
We'll allocate a little time tomorrow morning to let one of the 
crewmen wash that off and clean it up, and we think that that'll 
rectify that problem. Another, just a nuisance thing, the 
Commander reported, as we were coming up on Hawaii on one rev, he 

STS-8 CHANGE-OF-SHIFT BRIEFING pl5ja 09/02/83 12:00 NOON PAGE 3 

heard some, a lady traffic controller, we think, talking on UHF 
about 3 min prior to Hawaii, that would be west of Hawaii, and 
that made him remember that for the last two days, about 2 to 3 
hr before they wake up, they've been hearing a constant key for 
some undetermined duration. He did not report any voice 
associated with that key, but we have not tried yet to isolate 
exactly where, terrestially that is, but it's, evidentially, UHF 
in origin, and it's something we're flying over, we're getting - 
- we've had occurrences like that on other flights that most of 
you might remember. But, the only other one, as far as anomaly, 
hardly worth noting, was a report from the crew of some blue tape 
that they saw on top of one of the GAS cans, it was one of the 
cans that contained some of the envelopes. That tape is 
something that's used on this system in covering it up when 
they're transporting them and evidentially, a couple of these 
pieces of tape didn't get removed. One of them has curled up, 
and there's actually no impact from that. We did, prior to the 
crew going to bed tonight, send them a message on what we planned 
to do tomorrow, since we did not have time preflight to factor in 
the small changes that we had to make to accomodate the extra 
day, so, I'll just briefly run through what those plans are. In 
the morning, we're planning to do two tests with the STAR 
trackers. These tests both have implications towards the STAR 
trackers' use on the upcoming rendezvous missions, both 11 and 13 
Solarmax. The first one is to get into a particular Sun in 
Orbiter geometry, sun shafting, sun angle geometry, to look at 
how many false locks one might expect in the exact geometry where 
we will be depending on the STAR trackers for data on the 
Solarmax rendezvous mission. The other one is a test to lock 
onto a star at a certain number of degrees above the Earth's the 
Earth's horizon, and then track that star down to the horizon and 
see how close to the horizon we can track it. It has 
implications on how far you can take marks on a star and how long 
your data arcs would be, when stars become unusable. So, those 
two tests were not originally on this flight, and we added them 
onto the flight when the ejjtra day became available. Tomorrow we 
Will do a pitch test, which is a Ku-band TDRS test. We have 
already done a roll test, and I'll not say anymore about that. 
I'll let Bob cover that. Tomorrow we will have the formal press 
conference with the live interview with some correspondence on 
the ground talking to the crew, and I think that's REV 66. 

STS-8 CHANGE-OF-SHIFT BRIEFING pl5jb 09/02/83 12:00 NOON Page 1 

PAG I believe that's right. 

DRAUGHON So that's being setup. We have an RMS PFTA session 

for tomorrow that I think X eluded to earlier. The things we are 
going to do there are 2 direct mode checks that we just didn't 
have time to plan in the original flight, and a thing called an 
auto sequence with an unloaded arm and that's a set of 
calibration data that we use to just judge the repeatability of 
the system each time we use it. In addition to that, if there's, 
if there is more time we have a long standing procedure - one 
that we defined before flight one - where you would use the arm 
to go out and, in essence, do a survey of the Orbiter. And we 
have not used that except in those instances back on flight 1 and 
2 when I had some, well I guess it was on flight 2, when we had 
some of the tile hits. This particular Orbiter doesn't have 
hardly any tile damages at all. I think I told you about the two 
little indentations on the right OMS POD and a couple of chips 
that are off up in the front. The reason for doing this 
particular test is really to determine what areas, what - how 
accessible we can - what kind of views we can get with the RMS 
for future applications. Whether it would be looking at a 
payload that has some strange structure or shape or looking at 
some part of the Orbiter that for some unforseen reason we might 
need to. We have constructed those kinds of views on ground 
computers, but we have never had the time to go check them out 
and see exactly what, how much you can see with these oblique 
views on orbit. If we have some time left over tomorrow, we will 
do that. That's what I have Terry. 

PAO Okay. Bob do you want to talk abou TDRS before we 

go to Q&A? 

ALLER Yes, just generally Terry. I might say it's a 

pleasure to be here 5 months afterwards. The last time I was in 
this room was April 5th, I believe. We had just detached from a 
spinning lUS and stabalized. We've come a long way and it's a 
real pleasure to be here talking about the TDRS system operating 
with the Shuttle. I did have some points I'd like to make up 
front and I remind everyone that this mission was an engineering 
test mission for TDRS - not a network support mission. And from 
that prospective, our view of the results to date with our test, 
our specific test - so called DTO's, as well as the experience 
we've gained in our operational loop that includes not only White 
Sands, but of course Goddard and the Network Control Center and 
here at Houston. The interface of that team is really STS-8 the 
biggest thing we have to resolve for operatiiig TDRS and that has 
come along very well during this mission and, of course, the only 
we can really operate that team is when we have the Shuttle in 
flight. The mandatory systems objectives for TDRS that we wish 
to achieve with the Orbiter prior to Spacelab have been 
successfully accomplished in the last 2 or 3 days. The one that 
we were most interested in, from our own point of view, was the 

STS-8 CHANGE-OF-SHIFT BRIEFING pl5jb 09/02/83 12:00 NOON Paqe 2 

auto track. The auto track is the system that automatically 
points our K-Band antenna, which is a narrow beam antenna, to the 
Shuttle. We have not exercised that totally satisfactorily. 
Prior to this, we had attempted to use it on our LANDSAT 
exercises and it was not totally successful then. It hasn't been 
operating well since we initiated the operation on Wednesday in 
the first K-Band pass. So we are very pleased with that. System 
stability was another concern we had going into this exercise. 
Ws of course still have those concerns. However, we feel the 
stability of our system has improved daily. And since our major 
difficulty that occurred Wednesday, and I'll talk about that in a 
minute, we feel the system stability problem has been improved 
tremendously. I would like to comment also on the related 
network operations. Again, TDRS is not just a spacecraft or a 
ground station. The system involves a ground station runned by 
NASA at White Sands as well as the Network Control Center. We've 
had a lot of difficulty with the Network Control Center at 
Goddard. It's been basically, I think Mr. Draughon will agree, 
transparent on this mission which means its operating just the 
way it should operate. So it has, and we have been very pleased 
with that operation that's conducted from the Goddard Space 
Flight Center. Finally, from the TDRS perspective again, we 
think the results to date have been very good.- I thought I would 
summarize our situation for the past 4 days very briefly. And 
then, if you wish Terry, we could go into questions. 

PAO Okay. 

ALLER I think the first day, which was Tuesday, we felt 

very pleased with the S-band operation. The s-band is the wide 
band interface we have with the Shuttle. We had some dropouts 
during the day. However, the overall operation on S-band from a 
test stand point was very good. We had at the White Sands 
Station, we had an IPM computer fault, software fault. That's a 
computer that's a communications computer in the midst of all the 
other computers we have at White Sands, and that was corrected. 
That was the basic systems fault we had. We replaced a card on 
the forward monitor at White Sands and corrected that hardware 
problem. On the second day is where we ran into the major 
difficulty we had that has been described as the computer, or ADP 
software contamination. That description is mine. Basically, we 
have not run our system as long consistently as we have on this 
mission. As you know, I characterize our main problem as time. 
We had hoped to have roughly 5 months to operate with and check 
out our TDRS system. We're in the second month of checkout with 
this flight. So that the time has not been on our side to 
prepare ourselves for a full up operation v/ith Spacelab. And as 
a result of that, we, in running the computers at White Sands, we 
saw about the time on Wednesday we initiated the first K-band 
operations some messages that the White Sands Station 
automatically sends back to the system and the users - a 
degradation of the data. Those messages basically tell the 

STS-3 CHANGE-OF-SHIFT BRIEFING pl5jb 09/02/83 12:00 NOON Page 3 

users and the network control center what the status of white 
Sands is. What equipments are in the loop and what their status 
is. We noticed that those messages were not accurate. We then 
got into one of our vector propagation problems which is when we 
get a vector, which we get hourly from Houston on the Shuttle, 
that vector is passed through Goddard back to White Sands and 
White Sands then propagates that vector so that it can tell our 
spacecraft where to point. And we ran into that problem and the 
situation generally deteriorated from that point until Wednesday 
evening. We decided to go off lino and check out the system. In 
that checkout, basically what we did was we totally reinitialized 
both of the computers. These are UNIVAC 1182 computers at White 
Sands, And then we conducted about a 5 hour simulation 
internally at White Sands and with Goddard. And we came back on 
line yesterday morning. That cleansing refreshing of the 1182 
system resolved that problem and we've not had that problem arise 
again. We feel that that is a potential problem and we're 
working around that problem. We have a backup system. And on 
the backup system we're refreshing that computer data base on a 
24 hour basis. So we will always have a totally refreshed 
computer system, updated computer system on line at V7hite Sands 
and we hope that will resolve that problem. Yesterday we came 
back up on line and we noticed we had S-band dropout problems. 
We feel that yesterday's activities were very good from a TDRS 
stand point because it allowed us to work with the flight 
controllers here at Houston in resolving that S-band problem. We 
first tried, had the Challenger go to a different transponder 
onboard and that didn't change the situation. v?e then went to a 
different chain at White Sands which changed the forward link S- 
band equipment at White Sands and that cleared up the problem. 
We then later in the day yesterday had a K-band return problem at 
White Sands where we could not process the 192 kilobits on K- 
band. That was corrected also by going to a different chain 
equipment at White Sands. Then yesterday afternoon we got 
together with the flight control team and determined the main 
thing we wanted to do from this point out, as much as possible, 
is run passes in the same fashion that the flight control team 
plans to run the passes with Spacelab. And we have been doing 
that since last evening and these passes have been very 
successful. Basically that is coming up on S-band, switching to 
K-band, switching back to S-band, coming back up on K-band. The 
reason for that on the Spacelab mission the K-band, of course, is 
what they're looking for for the high data rate return on the 
experiments. And when there's blockage from Shuttle we lose K- 


STS-8 CHANGE-OF~SHIFT BRIEFING pl5jc 09/02/83 12:00 NOON PAGE 1 

ALLER We go back to S-band, and when we're out of 

blockage, we can then again pick up the K-band and the wide data 
rate from the experiments. So those exercises over the past 
several hours have gone very well. I think that's all I've got, 

PAO Okay. Please wait for the microphone. Craig 

Covault, Aviation Week. 

CRAIG COVAULT (Aviation Week) A TDRS question, I believe, that 
both Harold and Bob could help out on. Do you plan on reentry to 
try and get some data down through the blackout, hoping that the 
S-band can go up to the top antennas, and up to the TDRS? 

ALLER My understanding of that, and I'm really not clear 

at this point, but my understanding is, we're going do a (garble) 
to a point, a spot during the reentry, and see if we can track 
the Shuttle as it passes through. Is that your understanding? 



That's what I believe to be the case. Yes. 
So, are you saying that - - 

DRAUGHON We'll be attempting it, yes, but not in a full 

track mode. 

COVAULT Not in a full track mode, and would you tell the 

crew to try and make some voice transmissions during that period 
to see if you could hear them. 






No. No we are not doing that. 

So, this will just be a telemetry type basis. 


And if you - - 

If you get telemetry, you will have voice. It's 

not a likely failure case, to have one and not have the other 
because of the way the S-band is modulated, it's constructed. 

COVAULT Would there be useful information in that telemetry 

to you, on the entry? 

DRAUGHON Craig, not in the sense of it would be useful 

in an abnormal entry where the ground could detect a problem and 
help the crew in resolving it, and reconfiguring it, and making 
it - - in safing themselves from some problem. All of the data 
that is generated during entry, as far as post flight analysis, 
for entry analysis, and that kind of thing, is recorded onboard 
on the OPS recorders, and we can recover it from there, the data 

STS-8 CHANGE-OF-SHIFT BRIEFING pl5jc 09/02/83 12:00 NOON PAGE 2 

that's generated during blackout, so, we don't lose any data 
because we have LOS periods, as far as postflight's concerned. 
TDRS is going to help us in realtime, in that phase. 

COVAULT This will be the first time any U.S. spacecraft's 

ever come back and you've had some contact during a blackout 

DRAUGHON That's true. 

COVAULT On an RMS question, if you're able to get in the 

Orbiter inspection routines tomorrow, what type of inspection 
scenes might we expect to see. Hook shots over the side, 
perhaps, underneath the forward nose, and things like that. 

DRAUGHON Those are the ones that I would guess. We started 

building a set of "what would you like to see" from a number of 
different parties, you know, that have vested interests in 
that. I received two lists from two separate camps before I left 
over there, and Jay Greene, on the planning shift, will be 
dealing with that through tonight, putting together that menu, or 
that shopping list for tomorrow. I suspect that there will be 
most - - there will be things like forward of the wings, looking 
back into the wing glove area, those kinds of things, but he's 
going to put together a prioritized set, and depending on how 
much time we have left after doing the things the program had all 
ready approved for this flight, we'll go get as many of them as 
we can. 

PAO Morton Dean, CBS. 

MORTON DEAN (CBS) Based on your experience during the past week 
with TDRS, are you satisfied that you will be ready for the 
Spacelab, or do you wish you had more time, and do you think 
you're in the process of recommending a delay in the scheduled 
launch til you, perhaps, get a better pack on what's going on, or 
perhaps more experience with another test flight. 

DRAUGHON I'll answer that first. In my opinion, we have 

learned a great deal on this flight, and from here on out really 
is pulling together the operational teamn in an operational 
sense, for Spacelab, and in my opinion, over the next 60 days, 
we're going to be able to do that. 

DEAN Saying you'll be ready for when Spacelab as now 


DRAUGHON (Garble) Yes sir. 


Mike Mechen, way in the back. 

STS-8 CHANGE-OF-SHIFT BRIEFING pl5jc 09/02/83 12:00 NOON PAGE 3 

MIKE MECHEN (Gaddette News Service) Just to follow up on that, 
will you do some satellite tests, for instance, with LANDSAT 
after it comes down that would also help you get ready for 
Spacelab. Can you elaborate a little on that? 

ALLER Well, I don't know how much I can elaborate on 

it. We will run with LANDSAT as often as we can. That is our 
dynamic test vehicle when shuttle's not up there and we, as you 
know, ran some tests successfully with LANDSAT prior to this 
mission. So, when we can, and they have some difficulties, as 
you know, with power and so forth, when we're available and 
they're available, we will run as many passes with them as we 
can , 

PAO Okay. Over here on the aisle. 

LEE DENBART (Los Angeles Times) Harold, can you recall a duller 

DRAUGHON Well, it has been a fairly nominal one. I v/as 

assistant flight director on Apollo 8 when Borman took the first 
flight to the moon, and we were 2-1/2 days out and had yet to log 
an anomaly. There were some long shifts there, and it was kind 
of an unusual situation to be there for the first time and not 
have anything to work on, any anomalies to work on. 

DENBART But you compare this one to that? 

DRAUGHON As far as having little diddles going on, yes. 

It's that kind of a shift. It's been a very clean flight. 

PAO Okay over - - 

PAT JONES (NSI) The graphic recorder failure that Bill Thornton 
referred to in his final report, is that going to curtail any of 
his activities? 

DRAUGHON I honestly can't - I'm not that familiar with the 

stuff that Bill is doing to answer that. I believe that it does, 

but I really couldn't answer that. We can get an answer for you. 

JONES I'd be oblidged. 


PAO Any further questions here in Houston. Okay. 

Let's switch now to Marshall Space Flight Center. 

- - packed on subsequent Spacelab missions, and 
would you be comfortable with any substitute for the lUS. 

STS-8 CHANGE-OF-SHIFT BRIEFING pl5jc 09/02/83 12:00 NOON PAGE 4 

PAO We didn't get the first part of that question. 

Would you start again please? 

DAVE DOOLING (Huntsville Times) Okay, This is for Bob. Do you 
foresee any impact on future Spacelab missions? When do you 
anticipate TDRS 2 and 3 getting up, and would you feel 
comfortable on flying it on any substitute vehicle for lUS? 

ALLER Well, our present schedule on the IDS is in the 

late spring or early summer of next year. I think the firmness 
of that schedule is very much dependent on the tests that are 
being run this fall on the lUS by the Air Force. I think their 
recovery plan is pretty well in hand at this point. I think they 
not only understand the failure, but the cause of the failure, 
and I think until we get through those tests, the schedule will 
have some softness in it. We, as you probably know, have looked 
at other alternatives for the lUS in that we need to get 2 and 3 
in flight, and we prefer staying with the lUS. That's our prime 
vehicle and it has a lot of capability - - capabilty we need for 
our mission, and I think that's the vehicle we will use. We will 
continue at a lower level, of course, to look at alternatives to 
the lUS, 

DOOLING Okay. Harold, did you find out what type of 

receiver the TAGS system uses on the Orbiter? 

DRAUGHON No. I didn't know anyone was looking for that 


DOOLING yesterday, you might try to dig it out. I'd be 

interested in knowing what kind of receiving equipment is being 
used up there. 

DRAUGHON Okay. I'm sure Terry can get you some details on 

that. It comes - - 

(GARBLE) (WFF TV) For Bob. Considering the downtime and the 
dropouts that you've had with TDRS during this mission, if this 
had been Spacelab, what percentage of data loss would we have 
been looking at? 

ALLER V7ell, I don't think we would have gone into the 

mission had it been Spacelab. This was entirely a different 
mission, and our objectives were entirely different. As I said 
up front, the intent was to conduct some engineering tests, and 
we're doing that. I think - - i won't even make a guess of how 
much data we would have gotten. Obviously, when we were down 10 

hr, we|d have missed lost 10 hr of data, we've had 

significant periods where we were not in contact through TDRS, 
thus far. I don't anticipate that kind of operation for Spacelab 
in October at all. 

STS-8 CHANGE-OF-SHIFT BRIEFING pl5jc 09/02/83 12:00 NOON PAGE 5 

WFF TV So, you're optimistic about having a 100 percent on 

that, then for Spacelab. 

ALLER Well, I would not bet my payroll on a 100 percent 

coverage from any network, but I'm looking for a highly 
successful TDRS operation on that mission. 

WAFF TV All right, and one other question for Harold. 

During the STAR tracking operations, what will be the attitude of 
the Orbiter? 

DRAUGHON During the roll alignments? 

WAFF TV Right. 

DRAUGHON What we do is, as I said earlier, the way the 

software has been structured, we have room in the software to 
predefine 50 stars and where they really are. The STAR trackers 
- there's a Y and a Z tracker that take marks or sitings on those 
stars, and based on what they measure, then you can back out what 
your attitudes are. We're going to do one of these rolling IMU 
alignments on four different occasions during this particular 
flight, and we are purposely just picking random attitudes. We 
are not trying to get any special attitude or set up a special 
test case, and the probabiltv is in the 90 's, upper 90 
percentiles, that any X-axis attitude that we go into and then 
roll for 360 degrees - that we will pick up 2 stars that would be 

STS-8 CHANGE-OF-SHIFT BRIEFING pl5jd 09/02/83 12:00 NOON Page 1 

DRAUGHON And for the previous question on the TAGS system, 

I'm still not sure exactly what the questioner was after but one 
more bit of data along the lines that you were pursuing. The TAG 
system only works via the Ku-band through the TORS. It will not 
work just strictly from GSTDN ground station directly to the 
Orbiter . 

DOOLING Dave Pooling, again, Harold, what I'm trying to 

find out there is if it's comparable to an office FAX machine or 
the laser photo that we have in the newsroom or what. 

DRAUGHON Okay. It's a, I believe it's a CRT system and 

we'll have to get you those details. 

DOOLING Okay. One more question for Bob Aller. With all 

the work, the fivo months worth of checkout that you try to 
compress into 2 or 3 months, are the people at the MCC and out at 
White Sands putting in a lot of overtime? Are they starting to 
run towards their limits and into exhaustion? 

DRAUGHON Yes and no, Dave. Yes they're putting in an awful 

lot of overtime. You've got to remember that entire team has 
been working 24 hours a day since the 4th and slightly before. 
That, of course, is the basic mode of operating a TDRS-type 
mission so they're required to be on line. No, I don't think 
they're approaching exhaustion by any means. 

DOOLING Thank you. No more from Marshall. 

PAO Okay. Let's switch now to Kennedy space Center. 

PAO (KSC) Okay. 

AL SALESGOOD (Baltimore Sun) For Mr. Draughon. Will the 
Orbiter remain at 120 miles altitude for the rest of the 
mission? Also, I believe someone asked you this question the 
other day, but I forgot your answer, and that is, ho\f low could 
it go comfortably and still remain in orbit? 

DRAUGHON Okay. Your first question first. The plan for 

this particular flight is to collect the EOIM data at 120 miles 
circular. It wasn't me that got asked that question, and I'll 
give you an answer. There are several. You've got to determine 
whether you want to talk about circular orbits or elliptical 
orbits and you've gotta, and then - before you can answer your 
second question - and then you've got to determine how long it is 
you want to stay hero, and so I'll give you some ball-park 
numbers and then you can interpolate for yourself. Before flight 
one, we looked at a lot of different orbits for partial bums on 
deorbit and kinds of - and where during the deorbit burn do you, 
when the actual perigee that's in front of you keeps decreasing 
and decreasing until it actually goes negative, and you're going 

STS-8 CHANGE-OF-SHIFT BRIEFING pl5jd 09/02/83 12:00 NOON Page 2 

to land on the Earth or run into It. Hopefully, land. So, 
that's a - you can make plots of burn times during retrorate 
burns and how their perigee behaves. So, you can see, it looks 
just like a take-off on an aircraft - there's a point which you 
have to complete the problem, you can't quit. If you're around a 
150-mile orbit, and start doing deorbit, we don't like to go 
below 80 miles, and stop fighting the problem. If we get down to 
an 80-mile perigee, then we just keep throwing everything at it 
until we get re-entered. Above 80, if we have a significant 
problem, we pull the plug and stop and reasses it and see what we 
can do to get in a better posture. That particular number was 
picked because it was high enough that there was not so much drag 
at those perigees that it would impede our ability to navigate 
while going through those 80-mile perigees. And it was one that 
gave us at least a minimum of 32 or 36 hours orbital lifetime 
before gravity would pull you in. If you want to talk about 
circular orbits, you wouldn't be comfortable at 80 miles. You'd 
be in hours as far as lifetime is concerned. If you think back 
to what you've already been told with regard to ATO orbits coming 
off ascent when you're trying to just get on orbit as cheap as 
you can. The thing we go for Is 105 miles circular. That's 
about where you're comfortable. You can fly a day or 2 there, 
and probably a little longer, but it's not something you'd want 
to - you probably couldn't stay a week and wouldn't want to 
try. So, you can draw your own conclusions from those kind of 

SPENCER ALLEN (CBS) You mentioned Interference on the UHF 
traffic control band, and also a key-down carrier situation. Is 
there any speculation that this could be deliberate jamming? 

DRAUGHON No, we really don't have any speculations along 

those lines. On this particular flight, we haven't had the time 
yet, since It was just reported to us, to try to go back and 
piece together exactly where It's coming from. The last one that 
was experienced was just west of Hawaii. The one that the crew 
reported, a couple or three hours before wake-up, you can see 
from that - and I tried to get the crew to more specifically 
define the time and they just didn't bother. It didn't bother 
them enough that they got up and noted the time, so if you can't 
get the time, remembering that we complete orbit around the world 
in 90 minutes, and they're telling me it was 2 to 3 hours before 
wake-up. That doesn't narrow it down a whole lot for you. 

SPENCER One more question. Has there been any comment from 

the crew that's not been heard by the public regarding the Korean 
airline incident. 

DRAUGHON No, there have no transmissions from the crew on 

this flight that have not been heard by the public. 


That's all the questions from Kennedy. 

ST3-8 CHANGE-OF-SHIFT BRIEFING plSjd 09/02/83 12:00 NOON Page 3 
PAO Okay. Back to Houston. Any further questions, 

here? Up here, Pete. 

TN<5PrPRP0 (aarble) I suppose that the second apogee kick 

if ^Ns'f lB'tooi'l,lace during yoS? B^ift How was the burn, and 
what is the present status of that satellite? 

nRAiiGHON The last kick burn has been performed. They are 

fine for them. 

PAO Any other questions here? Okay. Thank you very 



STS-8 CHANGE OF SHIFT BRIEFING pl6ja 9/3/83 12:30 pm Page 1 

PAO Start with a summary of the orbit 2 shift by Flight 

Director Harold Draughon and then we'll take questions. Hal. 

DRAUGHON This afternoon's flight activity centered mostly 

around the RMS activity and that was in picking up those shopping 
list items that I talked to you about yesterday. Specifically 
they involved a direct - what we call a direct drive, unberthing 
and berthing of the payload. Direct is a course - I guess is the 
best word for it, a course at'ciude control mode or where you - 
where the crew controls the arms with the hand controls or 
without any augmentation or help from the computers. It's, by 
far the most demanding t<:*3k that you can do, but it has a virtue 
of requiring the least amount of hardware so that particular 
control mode can tolerate a lot of failures. And It was our 
desire to find out how well the ere'/ could handle that mode, we 
also suspected it might be somewhat crewmen dependent and you 
might see us run that same test again some day if we find 
ourselves with the arm onboard and some time in the timeline to 
do that, just to see what the variation is between crewmen. But 
we did the direct drive unberthing and berthing and then we did 
the auto mode devaluation which is an unloaded arm going through 
a particular predescribed set of sequences, a set that's been 
done a number of times on other flights and in test rigs and it's 
used for validating simulator models and those kinds of things. 
Following that, we did an exterior survey of the orbiter only - 
we have, I believe there are 8 of them defined, in the 
procedures, they were just cataloged. Wo wrote them before 
flight 1 and cataloged them and have been carrying them ever 
since then in flight data file. The intent, we had picked 3 of 
them to run depending on how much time we had at the end of the 
other activity today. We had time to do just the first one which 
was to look In front of the port wing, I believe, but anyway it 
looks - you take the RMS and essentially try to look at the 
undercarriage, look at the underside of it, we got our first 
playback of that and we only got part of it during the pass just 
before I came over. We'll be playing that back again tomorrow 
after the crew is up. We can get some passes with the crew up 
and with good TDRS coverage. We'll dump the recorder and you'll 
all get to see a good full playback of it here from. From the 
stuff I saw it's quite clear that that is a very useful piece of 
data to know. We had some concerns about the oblique angle that 
you're operating from whether or not you could really see much 
under the bottom of the vehicle. Turns out you can see quite 
well. The resolution is extremely well and it may turn out to be 
ser 'itive to the lighting configuration but the lighting 
situation that we had today, you had a lot of detail in looking 
at the tile on the bottom of the vehicle and it all looked in 
good shape. After the RMS work, we had the TV 04, in fact, 
that's why I had to option to go ahead and try to push in those 
other two surveys that we were after today. The thing they were 
competing with was the TV 04 pass which was a show and tell by 
Dr. Thornton on the kinds of things that he has been doing on 

STS-8 CHANGE OF SHIFT BRIEFING pl6ja 9/3/83 12:30 pm Page 2 

this flight and we really thought that the general public and the 
press would be more interested in seeing a show of that to get a 
better idea, better grasp, of what he is doing since the air to 
ground dialogue really doesn't give you a lot of insight to 
that. And if you haven't seen that, you ought to take the time 
to go to where the PAO flight folks make it available to you and 
watch that. It's very informative and it'll give you a good feel 
for what Bill's been doing up there. We follow on problems that 
we were working the waste management system. I talked to you a 
little bit about that yesterday in the gate valve that had a 
small amount of cabin leakage, cabin air leaking through the 
commode system into the waste tank. That leak is still going 
on. We have twiced cycled the gate valve, 3 times cycled it, two 
of those times it cut that leak right down to what's within a 
normal kind of a tolerance normal spec range. We ran a little 
test today to try to see if it was indeed in the gate valve or in 
another system - another systems configuration. It could have 
been a rigging problem. That test we believe, showed that the 
problem is not in the other survey, also in the rigging but is 
indeed involved in the gate valve. They cleaned the 0-ring seal 
this morning, that did not fix the problem. We can secure - the 
leak is not enough to give us any kind of a problem at ail. We 
got lots of cabin makeup air that we can feed that leak with when 
we choose to, and there's another valve - the vacuum vent valve 
in the waste system that when we close it, it's instream with 
this particular, this other 0-ring seal and it secures the 
leak. The way we are riding right now and I suspect the way 
we'll continue to operate is that during the crew sleep periods, 
we're closing the vacuum vent valve securing the leak and when 
the crew is up in the daytime, we'll run with that valve open and 
that's what we're doing right now. Those are the instructions we 
gave to the crew today. I brought with me a preliminary set of 
entry data sheet numbers, I'll give those to the PAO folks and 
they can run some copies of them, they are the best we know 
things today and I'm sure you are aware they will be refined 
tonight and you'll get a good solid set tonight. Weather at 
Edwards right now is looking good and for the 1 day waveoff it's 
still true. KSC and Northrop both have got some scattered 
showers and there are some overcast skies at KSC and some rain 
showers in and out of the area. That's about as closely as you 
probably want to talk about the weather this far out but the main 
thing is that Edwards looks like it is in good shape. That's 
essentially all I have. 

PAO Okay, we'll take questions, please identify yourself and 
your organization. 

TOM 0' TOOLE (Washington Post) Harold, does anybody know what 
caused the tags to fail yet, what the reason for it was? 

DRAUGHON No, we don't know for sure yet. There is a test 
laying on the console over there that we may - that Jay Greene 

STS-8 CHANGE OF SHIFT BRIEFING pl6ja 9/3/83 12:30 pm Page 3 

will decide whether or not to run tomorrow night or not. We 
think that we've isolated it either to the part of th** 
electronics that lays the image down on the paper cc on the 
developer after the image is layed down. This par one 
procedure has us open up the cabinet and overexpose ; bunch of 
paper inside the machine, and then close it and then process that 
paper. If it comes out all black then we know the developer is 
working and must be the imaging system. If it doesn't come out 
black, then it's probably the developer and more than likely 
we're laying down the images down good. We think the reason I 
didn't try to shoot one in it this afternoon is I couldn't really 
see why we couldn't run that particular test after landing and 
why bother the crew with it. But if there's ample time in the 
timeline tomorrow, we just might do that. 

TOM O'TOOLE And a question about landing is, is it more likely 
that you'll - still more likely that you'll stay an extra day in 
orbit if for any reason Edw.;rds is unavailable for that 1 rev on 
Labor Day or would you come down at Kennedy? 

DRAUGHON No, if it's a weather issue and we think that in the 
weather forecast are such that you think the weather has some 
potential for improving then we'll hang on and wait f Dr Edwards. 

PAO Craig Covault. 

CRAIG COVAULT (Aviation Week) Harold, would you review how 
many hours you got with the arm both loaded and unloaded today? 

DRAUGHON It's around 90 - around an hour and a half. I may be 
wrong there. I'd really have to go back and look that up for 
you, Craig. It's ... 

COVAULT I can catch it of the . , . 

DRAUGHON It's a'-Qut an hour and a half though. 


DRAUGHON I think. That's - that number is too small, Craig. 
I'll get you a better number for that. 

PAO Any further questions here? Okay, we'].l go to the Kennedy 
Space Center for questions. 

HARRY ROSENTHAL (Associated Press) I know that we've had a 
glow on the OMS POD previously and have seen other glows, but is 
this one, the one we're seeing now, is It intensified because 
you're flying around in the atomic oxygen? 

DRAUGHON The theory is, and I believe that it is the lower you 
are you got much more molecules that molecules are denser. So at 

STS-8 CHANGE OF SHIFT BRIEFING pl6ja 9/3/83 12; 30 pm Page 4 

lower altitudes you would expect more of a glow phenomenon so we 
think that we got more of it at this lower now that we've 
circularized at the lower altitude. We're going to repeat the 
glow experiment that was done at 16 too, that is going to be 
repeated tomorrow at the current altitudes and both the benign 
glow tail glow, and the glow that's attributable to the jet 
firings. Those are being scheduled for around mid day tomorrow. 

STS-8 CHANGE-OF-SHIFT BRIEFING pl6jb 09/03/83 12; 30 pm PAGE 1 

ROSENTHAIj Harold, do you know, is the glow on other surfaces 
too, in other words is the entire spacecraft glowing if you were 
in a position to see it? 

DRAUGHON I really can't answer that, if you believe the 

explanations that we're getting, then you'd think that that was 
probably true. If you believe the current theories at anyway. 

ROSENTHAL That is probably true, that the whole spacecraft is 

DRAUGHON That it's a phenomenon associated with the 

interaction with the particles and if you get the right 
orientation, get it on the right side of the flow, that you would 
observe it. 

BILL HINES (Chicago Sun Times) Dr. Thornton this morning made 
it clear that there have been some instances of space adaptation 
syndrome on this flight, but is it correct that there has been no 
PMC's with the ground at anytime in the flight? 

DRAUGHON That is a true statement, there have been no PMC's 

this flight. 

Al (Baltimore Sun) Are you going to perform the retro-fire at 
this cuvrent 120 mile altitude, and if you do, will this make any 
difference in your angle coming into the atmosphere, thereby 
increase or decrease the amount of heat you have? 

DRAUGHON No there is a series of trades that you can make in 

the way you target entry. You can get a deorbit solution that 
gives you, roughly ve shoot for a particular range from the 
runway that we want to land at, at the time when we are passing 
thru an altitude of 400,000 feet, and that's called the entry 
interface range. So we shoot for a particular fllghtpath angle 
and range at that point, and you do the maneuver in whatever 
orbit you're at into, to wind up at that point and intersect that 
descending trajectory, and if you do that right then within some 
small tolerance you always have the same problem to fly from 
400,000 feet down, the same kind of entry. And that's the way 
it's done. You do that by working with the target burn, the way 
ypu target the deorbit burn to get you to the 400,000 foot 
altitude, 400,000 range point. 

ROSENTHAL Harold, Harry Rosenthal again, would the long, the 24 
minutes of news conference this morning have been possible if you 
had not had TDRS to go thru? 

DRAUGHON No it would not, we did have an alternate plan that 

we had worked out in a great deal of detail with our PAO folks 
here to do this thing via the tracking stations, because before 
the flight we didn't know how well the TDRSS was going to work, 

STS-8 CHANGE-OF-SHIFT BRIEFING pl6jb 09/03/83 12 $30 pm PAGE 2 

and we did have i\ detail flow on how to do the handovers and what 
stations to use, and it involved the same rev, but using Hawaii, 
Goldstone, MILA which are the stations, those stations that have 
TV capability. It would not have been as long a session as we 
wound up getting, but it would have been an adequate one. 

JOHN WILFORD (NEW YORK TIMES) Will there be anything in the 
crew activities from now until the deorbit, that are different 
then in the past because they're going in for a night landing? 

DRAUGHON No there really isn't, the entry prep is a canned 

set of procedures ana they are started at a specific time prior 
to the deorbit burn ignition, there is absolutely nothing 
different as far as what the crew does or when they do it because 
of the night landing, 

HINES On the subject of TDRS, how well is it working, by 

this I mean, I understand that if TDRS should be working 
perfectly on 9, you would get about 40 percent of the Spacelab 
data back. Is it working so that you will get 30 percent or 25 
percent or do you have any evaluation of that now? 

DRAUGHON I really think that's an inappropriate assessment 

to make because of the way we are running the, operating the TDRS 
on this particular flight. We're not trying to optimize the 
number of in-service hours, we're trying to optimize the test 
data, the test gain by doing things that we need to do to learn 
how to operate the TDRS correctly, to optimize the data recovery 
later so it would be inappropriate to assess it, if I stuck in an 
inertial attitude hold, that was compatible with Ku-band 
communications I could give you a very nearly that full 40 
percent coverage, except for when ground hardware fails, so you 
see I could make that answer come out anyway I chose to, but I 
wouldn't get much test data. 

HINES Well, to follow up, could you answer it 

qualitatively then? Are you satisfied now with what you have 
been able to do with TDRS on this flight considering the 
objectives that you have on this flight? 

DRAUGHON Yes, we are quite satisified with that, we have had 

quite a learning curve. The reliability and the repeatability of 
the performance of TDRS and the Interface with it, have very 
noticeably improved during the time of the flight for the first 
days, few revs I should say, we were going very gingerly and 
trying to, more or less walk on eggshells with it, everything 
worked real well, and then we became very bold and pressed 
forward at a full speed ahead kind of a test program, and got 
thru a lot of test and got a bunch of information on what the 
problems were in a lot of configurations. Towards the end we 
went back in and started detailed, nitty problem solving kind of 
actions on individual problems. That, in itself, tells you that 

STS-8 CHANGE-OF-SHIFT BRIEFING pl6jb 09/03/83 12; 30 pm PAGE 3 

we're beginning to have some maturity and look at individual 
problems rather than trying just to get the thing to stand up at 
all. So the learning curve was quite steep ana we've learned 
alot and I don't have any doubt that we'll be able to make some 
appropriate adjustments to what we had had as our procedures, or 
envision procedures for flight 8 and it'll work well for flight 

ROSENTHAL Harold for the rat constituency, have you got any 
late word on health? 

DRAUGHON Dr. Thornton gave us a summary of today's 

activites, and it was a brief summary, he indicated that he had 
gone and looked at them and said that they v;ere eating and ' 
grooming themselves and they seemed to be quite well adjusted. 

PAO That is all from KSC. 

PAO Okay, we'll go to Marshall Space Plight Center now. 

DAVE DOOLING HUNTSVILLE TIMES Harold, have the crew made any 
comments in the past day or two on the heat pipe experiment and 
on any observed changes in the materials laid out for the oxygen 
interaction experiment? 

DRAUGHON Dave, I haven't heard any on the oxygen 

interaction. Two days ago they made extensive observations with 
regard to the heat pipe and all indications are that the folks 
got exactly the data they were going after, it would appear just 
in a shallow sense, that the thing worked as designed, perhaps 
ran at a little hotter temperatures than what had been predicted, 
but I believe we've got some very good test data. 

DOOLING Okay, on the glow experiment activity you were 

mentioning for tomorrow, that's the illuminocity photogrphy isn't 

DRAUGHON Yes it is. 

DOOLING Okay, are there any changes in the crew activity 

plan for tomorrow from what had been printed up and handed out to 

DRAUGHON Yes, well I don't know what you got printed out . . 

DOOLING Just the CAP and the public affairs material. 

DRAUGHON This from preflight? 



STS-8 CHANGE-OF-SHIFT BRIEFING pl6jb 09/03/83 12:30 pm PACK 4 

DRAUGHON Yes, there are some changes in the morning, I'll 

give you a kind of a summary of it, in the morning there's going 
be some earth view times, there will be the FCS checkout and the 
RCS hot fire test which are standard for late in the flight 
generally on the day before entry. There are going to be some 
more TACAN tests on orbit, navigation TACAN tests, they'll be a 
continuation of the EOIM, the RMS glow and the tail glow, which 
is the two halves of that package, and it's still being debated 
whether or not to also repeat the jet firings during the glow 
experiment. I believe that that argument will win and they will 
also do the jet firings part of that particular activity for a 
couple of reasons. Number one, it's, you get more data that way 
and we have got ample fuel to do it, so there is no good reason 
not to. There is a fair amount of tomorrow ... 

STS-8 CHANGE-OF'SHIFT BRIEFING pl6jc 09/03/83 12:30 p.m. PAGE 1 

DRAUGHON ...for a couple of reasons. Number 1 it's, you get 

more data that way and wo have got ample fuel to do it, so 
there's no good reason not to. There's a fair amount of tomorrow 
dedicated to cabin stowage. There are a couple of things that 
are still being debated and that's what the planning team gets, 
you know, that's their task tonight, to put together the final 
details. Some open issues right now are whether or not to repeat 
the star acquisition test that v;as done this morning. That was a 
test where we were looking for some data on the startrackers that 
would give us some insight to how we use them for the rendezvous 
missions. Where we put the trackers, looking at a particular 
direction, particular sun lighting condition, open them up to the 
wide field of view and see how many times we get a false lock 
from debris or whatever that's floating around the bay when 
you're not precisely pointing them at a target, navigation 
star. What happened on this morning tests, was that there was a 
bright object, a very bright object, in the field of view of the 
startrackers. And the intent had been, the plan had been, to let 
the vehicle fly with the field of view wide open, let it acquire 
lock on a false target or a piece of debris. We can then, by 
crew input, brake lock on that target and then let it fly around 
until it picks up another target and see how many, how often that 
happened to get a population count, of sort, on that stuff. 
There was one article that was so bright that everytime we'd 
brake lock, it would immediately reacquire it, so it pretty much 
washed out the test. We want to repeat it again tomorrow, if 
that same thing happens again then we've successfully run the 
test. We're not real happy with the answer, but we do plan to. 
The test is being debated whether or not to repeat it, I think it 
probably will. And the other issue, the other open issue, and 
that's whether or not to do the jet firings during the tail glow. 

COOLING Okay. Of the 19 TDRS DTO's that you had hoped to 

get on the fligh":, how many have been accomplished so far and 
have you picke-' any testing that pref light you hadn't really 
anticipated = " 

DRAUGHON i don't have a numbers count of that, and there is 

one, I just didn't bring it with me. I think it's around two 
thirds just from what I remember back looking at the list, I 
didn't count them. Population wise, that's the number, what was 
your other question? 

DOOLING Have you accomplished any, you'd mentioned getting 

into some nitty gritty testing, have you done work that had not 
been anticipated before the flight? 

DRAUGHON No, the nitty gritty stuff was going back to 

problem areas where we had difficulty doing something we had 
planned to do. And then going into some detailed fact finding to 
try to find out, to workaround the problems right now on this 

STS-8 CHANGE-OF-SHIFT BRIEFING pl6jc 09/03/83 12:30 p.m. PAGE 2 

flight, to see, to get just better understanding exactly what's 
going on. 

DOOLING Okay, what's the current best estimate for wheels 

on the ground at Edwards? 

DRAUGHON Central daylight, it would be the 2nd at 02:39:27 

for an MET at 6 days, 1 hour, 7 minutes, 27. 

DOOLING Okay, MET, 6 days, 01:07:27, you said? 

DRAUGHON That's correct. 

DOOLING Okay, and finally, where did the crew store Dr. 

Thornton after they took the revenge on him? 

DRAUGHON Yes, that was quite a show wasn't it? They put him 

back in the tunnel, that's where most of his hardware is, 

DOOLING No more from Marshall. 

PAO Okay, we'll come back here. 

KRAMER I have two items, I thought I heard Mary Cleave 

say that the crew had 37 extra days of RCS consumables. I must 
have heard that wrong. 

DRAUGHON No, you heard it right. You got to keep in mind, 

the OMS RCS loading for this particular flight was originally 
defined manifested to support the INSAT plus the lUS PAM, lUS 
TDRS configuration. And most of that fuel, there was no 
incentive to take that fuel off the vehicle after that large 
payload was taken off. We still had a respectable ascent margin, 
so why load it and leave it on the ground. You put it onboard, 
f>nd if you have a leak on orbi*:, you got the stuff in the other 

KRAMER Is there an extra OMS RCS kit on this spacecraft 

for this flight? 

DRAUGHON No, there is not. 

KRAMER And the other question is, could you please give us 

the additional numbers you have for deorbit entry interface begin 
and blackout, etc. 

DRAUGHON Okay, do you want those over the loop, or . . . 

KRAMER I'd sure like to get them now. 

DRAUGHON TIG time is 6 days, 0 hours, 14 minutes, 30 

seconds. The Delta-V is 277 foot per second, the burn time the 

STS-8 CHANGE-OF-SHIFT BRIEFING pl6jc 09/03/83 12:30 p.m. PAGE 3 

Delta-T, we call it, is 2 minutes and 34 seconds. The cross- 
range is 511 miles, Guam acquisition is 6 days, 0 hours, 28 
minutes, 29 seconds, and that lasts until 33 minutes and 48 
seconds. Entry interface which is at 400,000 feet, or ,05~g, 
whichever you prefer, is at 6 days, 0 hours, 37 minutes, and 12 
seconds. The range at EI is 4,034 nautical miles, that's the 
targeting conditions that I mentioned to you earlier. We'll 
enter S-band blackout at 6 days, 0 hours, 39 minutes and 57 
seconds, and exit blackout at 54 minutes and 25 seconds, Craig, 
you asked a question yesterday about TDRS, somebody that I was 
familiar with with the entry stuff, TDRS at this date can't track 
a vehicle with a changing trajectory, it will eventually be able 
to do that, but right now it cannot. And of course, when you're 
doing entry your trajectory is changing because - when - as you 
get a little lower the drag increases and your trajectory is 
constantly changing. So we had to pick a point where we want to 
aim TDRS orient it to communicate with us. That has been picked 
to be geographically just after Hawaii in this particular region 
around entry interface. We'll cross the California coast at 
Santa Barbara at mach number 4.5 at 113,000 feet. The time for 
that is 6 days 59 minutes 15 seconds. I gave you the landing 
time. The weather at Edwards right now is 25,000 and scattered, 
visibility is 7 plus miles, winds are variable at 5 knots, and 
I've got a copy of a local California map with the groundtrack on 
it with mach number and altitudes on it, which you can get after 
the briefing. 

PAO Mark? 

KRAMER Yes, I'm sorry. Final question. There is no later 
opportunity for an Edwards landing that day. There are two 
earlier ones, is that correct? 

DRAUGHON That is correct. The reason for that, Mark is that 
on this particular flight if you'll - it all depends on when you 
land and when you launch and how many days you fly and we would 
have had to adjust the crew's arcadian rythm. We would have to 
get them up and hour and half earlier than they're used to 
getting up. We got a lot of confidence in the vehicle so we 
didn't choose to do that. 

KRAMER Doesn't the cross range exceed your allowable limits if 
you go for that later landing anyway? Isn't that also a problem? 

DRAUGHON You have to - what you look at is when you're trying 
to do that, is you try to look at the landing opportunities each 
rev and you got to weed them out based on cross range. The next 
one is excluded because of cross range. Sometimes, up until this 
flight they could have been excluded because of cross range or 
lighting since we're already in the middle of the night here that 
wasn't a discriminator at this time. Just another point, if we 
do have to wave off, you know we could go to the same thing 

STS-8 CHANGE-OF-SHIFT BRIEFING pl6jc 09/03/83 12:30 p.m. PAGE 4 

tomorrow the next day, and again go for the same Edwards but if 

we got enough problems that we've waved off one day we will wave 

off and go to the next to the last Edwards and give us a wave off 

rev opportunity on the - in the mission plus 1 day. 

LEE DEMBARD (Los Angeles Times) Do you imagine that the 
spacecraft will be visible as it crosses California? 

DRAUGHON I honestly don't know. There's got to be people that 
- somebody around here would - could answer that for you. It - I 
'^'^n't know. You'd have to look - you'd have to look at the 
altitudes and you not going to be able to see it I don't think - 
looking at the - we're landing at the middle of the night so the 
phenomenon that - on orbit satellites the way you normally see 
them is you got to catch them where they're high enough that 
you've got the sun shining on it ... 


STS-8 CHANGE-OF-SHIFT BRIEFING pl6jd 9/3/83 12:30 pm PAGE 1 

DAUGHON ... I don't think - looking at the - we're landing 

like in the middle of the night so the phenomenon that you - on 
orbit satellites the way you normally see them is you got to 
catch them where they are high enough that you've got the Sun 
shining on them and they are illuminated, and the world, the air 
below them is in the darkness and they stand out. That's how you 
normally see satellites on orbit. This one, I don't think you're 
going to have that, because we're landing at the middle of the 
night, not close to sunrise. If you could see the, get 
underneath where you're going to have the max heating perhaps you 
would see the ionization, but I don't believe you'll see it 
because of the sunlight. 

PAO Craig, did you have another question? 

CRAIG COVAULT AVIATION WEEK Yes Harold, do you have the roll 
reversal numbers there? 

DAUGHON The map Craig, has gjt two of them on there. 

Tomorrow we can have them all for you. 

COVAULT Have you had any indication what percent of the 

film they've used? They're carrying quite a heavy load. 

DAUGHON No, we haven't come close to exhausting any of 

it. The only one I've even gone out and statused is the ASA 400 
film which, since we are coming in in total darkness through the 
blackout period, they want to make sure that they had some film 
suitable for taking pictures out the forward windows during that 
period, and there are two rolls set aside for that. 

COVAULT With your current OMS RCS load do you anticipate a 

forward RCS burn of some amount of time before entry that might 
give them a pretty good light show out the front? 

DRAUGHON I think there's going to be a forward RCS dump 

after the normal sequence, deorbit forward dump kind of thing. 
Not a two-stage deorbit, but a forward dump of significant 
magnitude, yes. A 1,000 lbs. 

COVAULT Is that - I remember that they had a pretty good 

one on STS-2 would this be as good? What I'm thinking of Is, if 
they're going to be able to really have a good light show out 
forward of them during that RCS dump as Truly and Engle reported 
post mission 2. 

DRAUGHON This one Is - if we elect - I haven't statused - 

Gary Coen has been coming in each day and following the entry 
stuff because he's going to back and fly that shift, and I 
personally haven't look at what the C.G. management is, I know 
it's well within the C.G. boundaries, but I don't know how much 

STS-8 CHANGE-OF-SHIFT BRIEFING pl6jd 9/3/83 12:30 pm PAGE 2 

of that they're going to dump. I'm suce there's going to be 
enough of it that there will be plenty of lights out front. 

COVAULT Yes, Okay. 

DRAUGHON Right now, there's about 1200 lbs of excess forward 

RCS fuel, I do know that. 

COVAULT Okay, and again on the topic of RCS. I thought I 

heard Dick discussing a leak in a jet, and I'm not sure whether 
you've inhibited that jet although I do understand it's a very 
small leak. 

DRAUGHON There is one down-firing jet, left jet manifold 3 

that has a leak. It has exceeded - the way the software works if 
you get a leak the fuel or oxidizer boiling off creates a cold 
condition in the jet and thermistor error. The computer will 
detect that and automatically deselect it. It is a priority 1 
jet, which means it was the one that the DAP would normally use, 
but no more value than any other one. It just happens to be the 
one we call number 1. That jet has been deselected and is of no 
consequence. It's at about 13 degrees right now. 

COVAULT Would you reselect it for entry, or will you leave 

it deselected? 

DRAUGHON No, it is a down-firing jet so you've got two 

others on that side, 3 on the other side. We don't need them 
after we established attitude right after EI, so those pitch jets 
get deselected early in entry anyway. It will not be deselected 
unless, for some reason, the leak stops and the temperature come 
back up to their normal regulating range. 

COVAULT And One final one that's really kind of long-term 

view. The qualitative comments I've heard both from the air-to- 
ground and the ground-to-air on the glow indicate some pretty 
surprising findings, you are seeing a lot of glow outside. I 
know on Spacelab mission 9 the Darpa camera on Maui is going to 
try and take some IR pictures to see the whole spacecraft 
glowing. If you're working mission 11 or 13 with the MMU do you 
think that during the night MMU operations they might go as far 
as shutdown the payload bay lights for a couple of minutes to 
allow some photography from the MMU crewmen? 

DRAUGHON From the MMU crewmen what ... 

COVAULT Out some number of feet away from the Orbiter to 

get ... 

DRAUGHON No, you would have to - I know we're not doing 

that. If you were going to try to do that, you'd have to set up 
a lot of geometry right and that would complicate the real tasks 

STS-8 CHANGE-OF-SHIFT BRIEFING pl6ja 9/3/83 12:30 pm PAGE 3 

that we're doing there which is to get an engineering evaluation 
of the MMU, so we're not complicating that task with these kind 
of pictures. 

PAO Okay, thank you very much. 




STS-8 CHANGE-OF-SHIFT BRIEFING pl7ja 09/04/83 12:30 pm PAGE 1 

PAO Good afternoon. Harold Draughon is back with us 

today to give us a run down on the audio, the orbit 2 team. 
Let's start with the summary and then take questions. 

DRAUGHON Well, good evening. This was the last execute 

shift prior to entry. The last planning guys are on right now 
working on a few open items that are still having to do with 
putting together the final details for tomorrow. Today's, my 
shift started at the noon meal for the crew. The most exciting 
thing on that particular shift was the fail-to-sync that we had 
in the GPC'o right at the shift hand - ve . As most of you know, 
the onboard avionics hardware is conttoiled by a set of computers 
that run in a syncronous fashion. They all do the same test at 
the same time and ever so often they come together and agree that 
they are still in sync or doing the same things and getting the 
same answers. At various times during the flight, you elect to 
have from 2 to 4 computers in that set. We were running today 
with 2 GPC's, 2 computers in the set, and at some place during 
that operation it appears that a single bit, our best guess right 
now is, that a single bit got set in the computer that called a 
particular software routine, called an optional^ I think called 
an opt code, called a particular set of software that couldn't be 
executed. The computer eventually recojnized that fact and 
terminated that particular operation. That happened in GPC 1. 
GPC number 2 that was running in sync with GPC number 1 at that 
time, did not have that failure, did not call that software, did 
not try to do that processing until the GPC 2 got, in effect, got 
ahead and doing business of GPC 1. There's some software in 
there that schedules how often the computers are going to look at 
each other and decide if they are still in sync. When the next 
sync point occurred, obviously GPC 1 was behind GPC 2 because it 
had been executing these extra routines. A fail-to-sync was 
declared and that's what we call -that's really the anomaly we 
had. The computer was still processing. It was still operating 
at the time. We specified a computer to handle the downlist to 
determine, to gather and collect the data that comes to us via 
telemetry. GPC 1 was the guy that was in control of that 
processing at that time. It continued to do that task and, 
although the task, when this happened, we went through a standard 
procedure which has us dump the contents of the GPC via a 
hardware routine and a software routine for analysis by ground 
personnel. Crew did that - dumped that data onto the tape 
recorder. We happened to have TDRS at the time and we received 
that dump in real time. And then, re-iPL 'd or reloaded that 
computer, as we had anticipated, the reload took. The computer 
came back up. We put, we gave it the hardware back for control 
that it had previously had. And for those of you that more 
familar with the system, that was strings 1 and 4. It has been 
performing absolutely normally every since then, and we expect it 
to continue to do so. If that doesn't happen, tomorrow the only 
concession we will make because of this anomaly is that rather 
than giving GPC 1 string number 1 for entry, we will give it 

STS-8 CHANGE-OF-SHIFT BRIEFING pl7ja 09/04/83 12:30 pm PAGE 2 

String 4, The major difference in that assignjnent is that string 
4 does not have f^n inertial platform, and string 1 does. Since 
it's a lesser string, you'd rather give it to a computer that had 
one black mark against it even though it's operating normally. 
So that's where that particular problem stands. Some people are 
still looking at the details of the contents of that dump, but, 
at least a preliminary assessment has been made and it looks like 
it was a one time hit did scramble the changed one bit in the 
computer. It looktj like it was a hardware-induced bit transition 
and completely random in nature. The - when that problem 
occurred, it took about 45 minutes from the time it started until 
it was completely put to bed and we were back on-line. We didn't 
have the answers that I'm giving you now, but we had the dump on 
the ground and we had the system reconfigured onboard. It was 
from just prior to Guam, Guam to Santiago. There were some 
activities that we did reschedule. There were no activites 
lost. The activities that were going on at the time, we repeated 
the tail glow experiments that have been accomplished twice 
already, were rescheduled. And a side load test which was a 
TORS, a particular TDRS test, was coming right after that and it 
was rescheduled also. The other activities that we did today 
were the waste water tank dump, which was an assessment. We 
usually don't dump the water in the waste tank, we usually don't 
fly long enough to get so full that you have to. We have never 
done one, a waste dump, except when it had that simultaneous 
potable water dump. And so it makes analysis a little more 
difficult to assess the adequacy of the, some heaters around the 
dump nozzles. So this flight, since we had a fairly full tank, 
it was about 80%, we decided to do a waste tank, just to assess 
those heaters.. I didn't see the data near the start of the 
dump. At the end of the dump, the dumps were back up where they 
ought to be. And every indication is, that it was a successful 
operation. Repeat of the HRM, which is the data collection proof 
of about an hour and a half today. The side load test, the TDRS 
side load test, was a check to see how accurately the orbiter and 
the TDRS can communicate with regard to locking on the main load 
and side load, which is an issue with regard to what kind of 
power you want to put in the TDRS transmitter, or power load you 
want to transmit at. The first time we ran that test, we 
sequentially would acquire lock between the two vtJhicles and then 
break lock reacquire. We got 11 - out of 11 tries, we had 3 
locks on the side load the first time. We decreased the power by 
just a small amount, and on the next rev and had 100% 
acquisitions on the main load so I suspect - we're running the 
rest of the mission at that power level. And that information 
will be fractured into flight 9. We got the dumps of the video 
survey we had scheduled yesterday. Hopefully, you have seen 
that. It was a surprise to me the quality of that - I had 
expected those pictures of the bottom of the vehicle to be pretty 
much washed out because of sun angles and you can't get the 
arm. When you go forward of the wing and back under, you can't 
get the arm that far away from the vehicle so it's quite an 

STS~8 CHANGE-OF-SHIFT BRIEFING pl7ja 09/04/83 12:30 pm PAGE 3 

Oblique view. I had at least expected that there would be not 
all that much data there. They were quite good. You could - if 
you could go away and work on getting a rea3. precision monitor 
and I'm not sure you could even read some of the tile numbers on 
the tiles, by looking at that thing. We got the report on the 
DSO's just as I left the shift over there. I don't have a 
written summary of those things. There was nothing significant 
in the content of them. Dr. Bill was continuing on with his 
activities. He did report on the animal enclosure module, again, 
and said the rats were behaving normally and had adapted very 
well to zero g. So everything is going well there as far as we 
know. As far as the TDRS is concerned, we have accomplished all 
of the scheduled DTO's except one. That one is scheduled for the 
shift that's in work right now. And it's an acquisition with the 
Doppler compensation not present, just to see how well it would 
acquire in that particilar mode. But that's the only one that 
has not been accomplished today. That's all I have in this 
summary fashion. I'll answer any questions that you have. 

PAO Do you have any new numbers on entry that will.. 

DRAUGHON Yes, want to go through those now. 

PAO Yts, you might as well. 

DRAUGHON Read these things and let you get some copies of 

them later ... 

Slowly please Harold. 

DRAUGHON Okay. Deorbit in mission elapsed time, 6 days, 0 

hours, 15 minutes, that's the deorbit TIG, yes. 

No seconds? 

DRAUGHON No seconds. The delta V is 281 feet per second, 

burn duration is 2 minutes and 36 seconds. The cross range for 
this particular deorbit is 513 miles, which is well within the 
capability of the vehicle. After deorbit, we do get coverage at 
Guam. If you want the numbers, I'll give it to you just minutes 
and seconds after this because days and hours are all the same, 
29 min and 29 sec is acquisition ... 

S'rS-8 CHANGE-OF-SHIFT BRIEFING pl7jb 9/4/83 12; 30 pin PAGE 1 

DRAUGHON ... you get coverage at Guam, you want the numbers 

there, I 11 give it to you just minutes and seconds after this, 
because days and hours is all the same. 29 minutes and 29 
seconds is acquisition, LOS, 29 minutes and 29 seconds, and Guam 
LOS is 6 days, 0 hours 34 minutes and 50 seconds. At that 
particular time, just for interest, the altitude AOS is 101 
nautical miles, at LOS it will be down to 81 nautical miles, and 
the relative velocity is at that time about 25,000 foot per 
second. Entry interface, which is .05g, or 400,000 feet is at 6 
days, 0 hours, 38 minutes and 13 seconds at a range of 4,034 
nautical miles. We enter blackout at 40 minutes and 58 seconds, 
40 minutes and 58 seconds, and exit blackout at 55 minutes and 26 
seconds. The landing is at 6 days, 1 hour, 8 minutes and 28 
seconds. And that's central daylight, but that's 2:40:28, 
0200. The California coast crossing is 6 days, 1 hour, 0 minutes 
and 15 seconds, and that will occur at an altitude of 114,000 
leet, right at Santa Barbara. The role reversals in velocity 
(garble) at 44,250, that's the first role command, the first role 
reversal is at 12,900, second reversal is a role left at 6,652. 
And the third and final reversal is a role right at 3,355. The 
weather for tomorrow for that particular rev at Edwards is 
forecast to be clear, visibility of 7 plus miles and the winds 
are about 8 knots at Edwards. At Northrup it's 250 broken, 7 
plus visibility, winds are 200 at 05. KSC has 25 and scattered, 
7 knots visibility, winds are variable at 5 knots. 

we'll take questions now. Craig Covault. 

CRAIG COVAULT (Aviation Week) Harold, in running these numbers 
in the SMS, have all the PTI maneuvers interspaced okay with the 
role reversals? 

DRAUGHON Those runs are being run this afternoon, Craig and 

I don't know. There was one pref light that was in the, it wasn't 
in jeopardy, but it was kind of close, and that analysis will be 
done by some guys off-line this evening in the simulator. 

COVAULT And the second one on the entry, and it goes back 

to my question of a couple days ago on TDRS. When you go through 
the window when you might be able to get TDRS on the entry, what 
will you be getting, even though I understand it'e just being 
considered an exercise as opposed to a useful dataV 

DRAUGHON We'd use it if we got it, but it's, the thing is 

when your operating on, I don't now how much detail I went into 
the other day, when you operate via TDRS, the data is in a thing 
called convolution coating, the data is encoded differently then 
when you'd work via the GSTDN. It's just a matter of that's the 
way It was designed, and it has something to do with bit error 
rates, and things that I'm sure you're not interested in. In 
that fashion you're not compatible with the GSTDN, besides we're 
going to work, stay in that convolution-coded mode until we come 

STS-8 CHANGE-OF-SHIFT BRIEFING pl7jb 9/4/83 12:30 pm PAGE 2 

out of blackout so TDRS, and TDRS is being pointed so it will be 
in the area from Hawaii down through blackout and we'll stay with 
TDRS, stay in the TDRS mode until we come out of blackout, as 
soon as they come out of blackout, mach 1214, in there, we will 
command it out of the TDRS mode, into the GSTDN mode and TDRS 
will automatically drop block because it is in the wrong mode, 
then we'll put TDRS in and it cannot acquire, it cannot process 
the data in that mode. So, in that timeframe, the data will be 
availble, if you see anything wrong, any systems problems, we can 
give the same kind of help we give them post-flight, to help 
them. There is nothing any different about that flight phase 
that we are anchored to or expect to make any calls on. 

COVAULT Your comment there about the calls, I was just 

going to ask if Guy Gardner was going to make any calls to see if 
they can hear him? 

DRAUGHON I don't believe they intend to do that. We can 

tell without making a call whether or not we have indications of 
via TDRS. There is an indication in the Orbiter that shows that 
it has good and frank sync on the uplink, the onboard system has 
uplink on the digitized voice going up. If we see that the 
system is locked up, it's just like looking at a PCM ground 
station on the ground being locked up, so if we see that on the 
return link, that the onboard is locked up, then we know we have 
voice and if we talked they would hear us. 

PAO Lynn Sherr, ABC. 

Sherr Harold, just to clarify, first of all, which orbit 

are they entering on, is it 97 or 98? 

DRAUGHON Their deorbit TIG is on 97 and landing is on 98. 

SHERR So they land on 98. Is it accurate to say that the 

weather at Edwards is just perfect at this time, do you call that 
excellent weather? 

DRAUGHON Yes, that is excellent weather. 

SHERR Is there anything in the forecast that could come 

up to change that? 

DRAUGHON All we looked thru was 2 days, Lynn, and it looked 

good for a 1 day wave-off. It looked the same for the 1 day 
wave-off, I personally didn't look beyond there. If there had 
been something in the near future I thing it would have been 
brought to my attention. 

SHERR Ok, but there is nothing to indicate a possible wave- 

off at this point? 

STS-8 CHANGE-OF-SHIFT BRIEFING pl7jb 9/4/83 12:30 pm PAGE 3 

DRAUGHON Absoultely nothing. 

SHERR Okay, and finally, when they come in, that is their 

last opportunity for the day, is that accurate? 

DRAUGHON That is correct. 

SHERR When would their first opportunity have been, if 

you had chosen to do that? 

DRAUGHON If we wave-Off on that rev? 

SHERR No, if you thought that weather v. is going to move 

in, and you wanted to bring them down early, when would be doing 

DRAUGHON Well, you can bring them down for any one of the 4 

revs preceding that, and then it progresses forward an hour and 
half per rev. 

SHEERER Okay, and i£ for some reason they can't come in 

tomorrow at this time, it's exactly 24 hours later? 

DRAUGHON No, Lynn what we would do is, if you had to go a 

day late, you'd kind of want to cover your bets, and make pretty 
sure that you come down the next day, because you've uf id up one 
of your waveoff days, and so what we do there is we always target 
for the next to the last opportunity, or at least not the last 
one. On this particular mission we would target for the next to 
the last one, so that we'd have a one rev wave-off for the next 



Okay, so it' 

s 24 hours minus l-y/2. 


That is corr 

ect . 


Thank you. 


Mark Kramer, 



Harold, let 

me ask you a question about the 

computer problem. Is the kind of problem you saw possibly 
attributable to the thing which you're looking at with the 
(garble) experiment, that is, cosmic ray hitting a microchip and 
doing something funny to it, or is it nothing nearly so 
sophisticated as that? 

DRAUGHON It is pure speculation, but that kind of phenomenon 

could manifest itself like this. 

KRAMER And the plan you said for the entry has changed 

slightly in that you'd give GPC I string 4 as an IMU? 

STS-8 CHANGE-OF-SHIFT BRIEFING pX7jb 9/4/83 12:30 pm PAGE 4 

KRAMER Are both computers tiiough still v/orking on guidance 

and control with something to ao with the entry? 

DRAUGHON Yes, and in the current configuration, and now 

until we restructure the systems for entry itself, GPC 1 has got 
strings 1 and 4, GPC 2, the other one that, we're only using 2 
in the guidance system right now, and GPC 2 has got half the 
strings, and GPC I's got the other half, I and 4 has got GPC 1, 
2 and 3 are on GPC2. When we fly entry, we give each GPC an 
individual string. If you've got a computer tha^ you're not 
certain of, you always give him string 4 because it's the lesser 
string, has less hardware on it. 

KRAMER What is 4 using, tacan, air data probe, or 

altimeter, all that sort of stuff? 

DRAUGHON Yes, all those kinds of avionics, there are some 

systems that are not 4 deep, that were not quite redundant and 
those things are not, and if they're not quite redundant, than 
string 4 is the guy that doesn't have one, 

KRAMER I realize that at Edwards you're landing on a hard 

runway, but I understand there was water on the lakebed, and 
there was some question lash week as whether or not that v/ould 
impact bringing the flatbeds in with the lights, has the water 
dried up and do you see any problem with that? 


STS-8 CHANGE-OP-SHIFT BRIEFING pl7jc 9/4/83 12j30 pm PAGE 1 

DRAUGHON No problem at all, if we had to, there are variou;? 

cases that would have you downmode from, even today, you know if 
you had a problem with landing, that would make you want to have 
all the margins, control-wise in the final phases of a landing 
that you need, then we might even go back to the lakebed now. We 
think the lake bed is useable now if we needed it. 

KRAMER Final question. Why wouldn't you talk to the crew, 

in that blackout period, if you got TDRS? Are they so busv at 
that point you don't want to talk to them? 

DRAUGHON No, that's in fact, one of the, aesthetically it's 

exciting, in that you've got the ionization cloud around you, but 
as far as what you're doing, it's not that taxing, you hold in a 
constant bank angle, fly a particular bank command until you get 
to a certain deviation from where you want to go, then you 
reverse that bank angle aft, that's all you do Ux this ... 

KRAMpR Then why not talk to them? Are you maintaining a 

tradition here or what? 

DRAUGHON No, we really, if we had something to say, or if we 

saw something wrong or something, we would. But in entry we 
don't schedule anything that doesn't need to be done. You don't 
schedule anything to detract the guys from monitoring the systems 
and making sure that everything is on track. 

KRAMER In best circumstances, how long would you be in 

contact with them through TDRS if it worked optimally. 

DRAUGHON Optimally, we would cover them for the entire 

blackout period. Nobody is forecasting anything like that 

PAO Craig, we'll take one more here, then go to KSC. 

COVAULT I hate to belabor, but I had quick follow to his. I 

thought in your initial discussion on the restringing, you said 
you would not restring unless you saw another funny, you will 
definitely restring? 

DRAUGHON We will String differently for entry just because 

it's got one black mark against it, we're going to give it the 
lesser string. 

COVAULT Okay, I understand. 

PAO Okay, let's go to KSC, then we'll come back here. 

AL ROSSITER (UPI) If I were on a ship beneath the blackout 
portion of the path of reentry in the Pacific, would I be able to 
see the vehicle? 

STS-8 CHANGE-OF-SfUFT BRIEFING plVjc 9/4/83 12:30 pm PAGE 2 

DRAUGHON I've been told Al that you could. That is not one 

of my areas of expertise though. 

HAL SALSTED (BALTIMORE SUN) Perhaps you mentioned this at a 
previous briefing, but could you explain briefly again why you 
think it's possible you could communicate with TDRS through this 
ionization cloud. I don't understand what the advantage is that 
TDRS has, that the convention communications don't have. 

DRAUGHON Well, the advantage is that TDRS is above you, the 

ionization process takes place underneath and primarily on the 
leading edge of the lifting surfaces, it depends on how all 
encompassing, all engulfing that ionization cloud is, if it's 
such a large fireball that it completely engulfs you, then 
probably you can't get a radio signal in at all. If however, 
it's like a bow wave out in front of you, then if you were 
transmitting or coming to it in line of sight from above, then 
perhaps you would come in behind that shock wave and have good 

PAG That is all the questions from Kennedy. 

PAD Okay, we'll come back here, Tom 0' Toole, Washington 

0^ TOOLE Harold, could you describe, if there is any 

difference at all, in a night landing, what the Commander and 
Pilot .vould do that is different, then if they were coming in the 

DRAUGHON There is really nothing different. The geometry of 

the approach, absolutely no concessions are made for making the 
approach path differently, you obviously don't have all the 
visual cues out the window, so, you've got to fly the needles, 
you've got to fly what the guidance system onboard is telling you 
is the right ;:hing to fly too. And that is really the only thing 
that's different. 

O'TOOLE What is hands-on? 

DRAUGHON Not working entry on this flight, I honestly don't 

know, it's probably near (garble), I'm sure they go back to 6 

around the HAC, but I honestly don't know. 

O'TOOLE It's not the same as it is in daylight is it? 

DRAUGHON It has nothing to do with daylight or darkness, we 

always want, in any flight, you want the crew on the stick, in 
control in the loop, early enough for them to get comfortable 
with the aircraft. Depending on the tests that are in a 
particular flight determines how late you press that, and I 
honestly haven't looked at how Richard is flying this one. We 

STS-8 CHANGE-OF-SHIFT BRIEFING pl7jc 9/4/83 12:30 pm PAGE 3 

don't have, to my knowledge, we don't have any large number of 
auto-land type testing going on in this flight. 

PAO There is a question right here. 

JIM CARLTON {HOUSTON CHRONICLE) Can you describe the success 
of the mission so far, as compared to the others? 

DRAUGHON This particular mission has been extremely 

successful, in fact essentially 100 percent, and failure wise as 
far as what the Orbiter has done, performance wise, it has been 
the cleanest spacecraft that I believe we've flown that has had 
the fewest failures, that's my impression. It has had the fewest 
failures of any missions we've flown to date, with the 
Oribiter. We have accomplished everything we set out to do, you 
know you can put some windage on the TDRS testing, everything did 
not turn up exactly the way you wanted it, but we got all the 
tests that we set out to do, we got those tests done, we think we 
got all the things, we learned all the things we need to, to go 
back and modify our procedures or put our procedures in place to 
support flight 9, Spacelab. And we think that is a very durable 
task, we ran, interesting aside here, we ran high bit rate data 
again today on the omni antennas for 2 revs and it actually 
looked like the circuit margins, or the coverage was better with 
high bit rate data then it has been on low bit rate data, which 
is a bit strange, but it appears that is the way it was 
working. So it's been an extremely successful flight. 

CARLTON How is the mood of the astronauts, are they holding 

up pretty well? 

DRAUGHON They are in good spirits all around, they have been 

working hard, you could tell today that it was a little bit of a 
lighter day and everybody got their adrenalin going wh^jn we had 
the little computer problem, but like I say, in about 40 minutes, 
it was completely back under control and everyone knew where we 
were, and we were back making sure that we had picked up 
everything, and didn't miss one thing that was scheduled in the 
timeline that goes with that activity. 

CARLTON Has anyone developed motion sickness, or anythinq 

like that this run? 

DRAUGHON There has not been any private medical conferences 


PAO Paul Recer, AP. 

RECER They were given directions for taking pictures of 

the tropical storm in rev 83 and then directions for a hurricane 
in the Pacific on rev 94, they've done that consistently in the 
past, through several missions and just a matter of curiosity, do 

STS-8 CHANGE-OF-SHIPT BRIEFING pl7jc 9/4/83 12:30 pm PAGE 4 

these photographs contribute anything to meteorological knowledge 
or is this simply a matter of curiosity? 

DRAUGHON No they're requested by the kinds of folks that are 

looking at those phenomenon and I don't know exactly who they 
are, but they come in from a group of people that are interested 
in studing those particluar phenomenon, they identify for us 
preflight what areas they think the kinds of weather that they're 
going to want to look at are, at that particular time. They call 
it in and we draw it on some maps that are onboard, and as those 
things move around during the course of the mission, we generally 
enter it over altitudes, you don't have to give very precise 
pointing for looking at a storm, but we reorient the times and 
the locations for them. 

RECER It provides data that is not available by the 

weather satellites. 

DRAUGHON It's in a different form, and we have the added 

flexibility of putting different filters on, putting different 
kinds of films in, whatever those peoples specify the film and 
filter combinations they want, and the kind of exposure settings, 
so you can enhance the kind of products you're getting. There is 
a lot of data available from weather satellites, there is no 
denying that. 

PAO Okay, one more here from Mark Kramer 

KRAMER I missed the live feed of the TV that included the, 

looked like black and white night shots of Florida, r believe 
that's what it was, yes, they said they flew over the Cape, were 
you on, you were on for that weren't you? 

DRAUGHON NO, I missed it too, Paul. 

KRAMER What were those bright flashes, was that lightning? 

DRAUGHON I didn't see it either, I don't know. That's right 

it didn't happen on our shift. 

PAO Thank you. 


STS-8 CHANGE-OF-SHIFT BRIEFING pl8j 09/04/83 8:30 pm PACIR I 

PAO Well, good evening, the execute teams get all the 

glory and get to watch all the downlnk TV and get to talk to the 
astronauts, but the guys it*s the guys in the pits that plan the 
mission and budget the time and prepare the execute plans and 
decide when things are going to happen and that's been Jay 
Greene's job for 6 shifts now, is that right? And thought this 
would be a good opportunity to let him brag about that and to 
give you your last chance to talk to a Flight Director before 
3ntry this morning, Jay, 

GRKENE Okay, it was a nominal evening, we put together the 

plan for tomorrow's entry and there was some minor juggling in an 
attempt to get some last minute TDRS testing done but aside from 
that everything is going just about the way it's laid out in your 
preflight timeline. Prior to sleep last night, we had two things 
going that were of some minor significance, L3D, one of the aft 
RCS jets on the left-hand side had picked up a leak about 2 days 
ago and that leak continued for about 30 hours. During the night 
tonight, our indication that the leak was going on, which is the 
temperature measurement in the particular jet, the temperature 
started coming up to the same temperature that all the other jets 
are running at, about 80 degrees. It was down, if I remember, 
somewhere around 50 to 60 degrees. So they're all running at the 
same temperature which indicates that what was previously a minor 
but a concern that we had one leaking jet has gone away. The 
jets leaks are cured and that's good news. Yesterday I guess 
Harold spoke to you all about GPC 1 and the two computers that 
split apart. What happens in a case like that, we have two 
computers performing essentially the same operations and every 
once in a while one talks to the other and they tell one another 
at what state of their processing they're at, make sure they're 
both at the same state and then they march off and do their own 
thing. GPC 1 it turns out experienced what is known as a 
transient hardware hit. One bit, one 1 became a 0, a 0 became a 
1 due to a transient failure in a hardware register within the 
computer. In doing that, an instruction that was otherwise valid 
was trans — was changed to an invalid instruction and the 
invalid instruction that was recognized i^y the computer as 
invalid and the computer said I'm not to execute it and it went 
to the wait point. When it got to the wait point, the other 
computer was doing all the right things so it wasn't there, the 
two computers were not at the sync point together, and they said 
something is amuck. They spit out the set split indication and 
then they proceeded processing normally although not in sync with 
one another. We did all the troubleshooting steps and took the 
computer dumps on the GPC 1 computer, we got it re-IPLed, or we 
got it started again in sync with GPC 2, we operated on it all 
night long. Both computers are operating perfectly, so we have 
no problem in that area. And so I was all set to come over here 
and tell you that everything is ops normal, and just as I wes 
about to unplug, we picked up a TORS acquisition and I don't know 
if you've all heard it, but Dick reported that IMU number 2 went 

STS-8 CHANGE-OP-SHIFT BRIEFING pl8j 09/04/83 8:30 pm PAGE 2 

to standby out of the operate mode at about, local time was 
about 18:50, no I'm sorry, 18:15 elapsed time, it was about 10 
til 7 this evening. I'm sorry let me change that again, it was 
10 til 8 this evening. Last I heard the IMU was out of standby 
and back in operate although it had caged in the process of going 
to the standby mode. What that means is that instead of beina an 
inertial reference like the other two IMUs were and as it was 
before it caged, it went to a fixed reference relative to its 
case and was no longer valid as a measuring device for 
attitude. Right now the crew is in the process or just completed 
an IMU align, I heard that over the PA walking over here. ' Having 
done the IMU align, they will take that errant computer which is 
now — that errant IMU which is now back in an operate mode and 
align it to the other two IMUs. Hopefully, when this is done, we 
will have had a transient condition that has cured itself and we 
will have three IMUs back again. I guess there are about 6 hours 
between now and deorbit and that's a lot of time to look at it 
and see how it's behaving. If something happens and that 
platform becomes unavailable, we still have two left and any one 
single platform is perfectly capable of doing the entry test. 
It's nice to have three, it's an easy way to do voting, but we're 
set up, we have procedures in place and the software is in place 
to handle an entry with two or even one platform. As far as the 
deorbit goes, just some data you might want. Ignition time for 
the deorbit burn is at 6 days, 15 minutes, which is about 1:47 
central time. We get to entry interface at 6 days, 38 minutes, 
landing at Edwards is 6 days, 1 hour, 8 minutes, and 40 seconds 
or about 2:40:40 on Central Daylight Time. The time, I hear, 
that is of some interest is the crossing of the California coast. 
That will occur at 2:32:35 Central Daylight Time and the location 
of that crossing will be at Santa Barbara. The entry is 
perfectly nominal, all the program test maneuvers are go, Rdwards 
weather when last we left it was clear, 7 miles visibility and 
winds were maybe about 8 knots. So everything's looking real 
good for an entry this morning, with that... 

PAO Questions, Morton Dean. 

DEAN Last time for the bragging rights. We've asked 

this at various shifts, how do you consider the way this shuttle 
flight went, the best so far, almost as good as one other, or 

GREENE No, I think this has to be about the best so far. 

We've had some small failures, nothing that wo even had to do 
anything in the way of a workaround for. Good vehicle - like the 
way it's doing. 

DSAN So does it prove it is at long last, operational in 

your view? 

STS~8 CHANGE-OF-SHIFT BRIEFING pl8j 09/04/83 8:30 pm PAGE 3 

GREENE Well, I think we've had a good vehicle for 8 

flights now. I think we're getting better and I think the 
machine's going to get better and I think we're operational. i 
don't think there's any doubt about it. 

DEAN Thank you. 

PAO Doug Ross. 

ROSS What you've seen of TDRS, do you think it's ready 

to go, or at least support the future missions the way it's 

GREENE I think - watching TDRS during the course of the 

flight, I think it's been getting better and better every day. 
We've had eight days, or six days, or however we've had a lot 
of days to look at it and I think the important thing is that the 
TDRS people and the operations people both here and at White 
Sands and at Goddard have got some experience, they've got some 
data and now they can go back and they can look back on these six 
days and figure out what went wrong and what went right, which 
interfaces have to be beefed up and make sure the reporting is 
alright. I think we'll be in good shape for flight 9. 

ROSS Well listening to your CAPCOM, about the same time 

the report of the IMU came in, you were going LOS at Orroral and 
he said something to the effect of, "we'll have you at TDRS, next 
minutes if its works and if not then we'll pick you up at the 
next ground station," 

GREENE Choice of words. Number 1, that's a report we make 

because it's convenient for the crew, if we didn't make that 
crew -- that report, the crew does have a handheld computer and 
they compute the AOS times. TDRS has not always worked and we 
give them the second time as a — just to give them a clue as to 
when they can expect to hear from us. But the real positive 
point of all of this is that on flight 7, had Dick come up over 
Orroral and told us that his IMU went bellyup, we would have had 
to wait til we got to the west coast before we can look at any 
data or help him in anyway. In this case, we got TDRS up, we 
decided we needed some high data rates, so we got the Ku-band 
antenna up, we got the data into the MOOR and we had guys looking 
at in within 5 minutes of Dick reporting the problem. 

ROSS You don't think it's time to dismantle the ground 

stations that are under TDRS right now though, do you? 

GREENE Well no, because well number one, we do have the 

reliability? number two, TDRS is going to serve two purposes, one 
purpose is the data relay that you see demonstrated on this 
mission, but the long term plan is to also provide tracking 

STS-8 CHANGE-OF-SHIFT BRIEFING pl8j 09/04/83 8:30 pm PAGE -1 

data. And we're not yet at the point where we are set up to use 
the TDRS tracking data, so it will be a while yet. 

^OSS We do lose a couple of stations after this flight 

though, don't we? lOS? 

GREENE Yes, we lose lOS and the Buckhorn station are being 

taken out of the program. Neither one of which though are 
tracking stations. 

PAO One more question here, and then we'll go to KSC. 

Jerry Hannafin. 

HANNAFIN Jerry Hannafin, Time Magazine. The spacecraft has 
mentioned the piercing sunrise to their dark-adapted eyeballs. 
The thought is that they'll be making something of a pretty hot 
reentry. There's going to be the dark adaption, the sudden burst 
of light on reentry and the firing. Are there any special 
precautions, or plans being made, to maintain somebody in the 
left or right hand seat of the Orbiter who's going to have his 
eyes already accustomed to that millions of candle power down 
there on the runway at Edwards? 

GREENE No, th' r-rew has practiced night approaches to 

Edwards. Of course, cney've never, they never done the high 
altitude part of it. The only reference I have to how they are 
going to handle that is their second patch. I understand we're 
going to have four sots of eyeballs out one window and one 
out. . . I don' t know. 

PAO Those lights don't shine in the cabin anyway. 

GREENE If you're worried about the runway lights, the 

runway lights are all going to be from behind the vehicle 
pointing forward, there's nothing coming at the front windshield 
of the plane, 

HANNAFIN I think that what broods here is their eyeballs, or 

retinas or whatever are going to be, I'm sure, going to have to 
make a very quick adjustment within a matter of a very few 
minutes from the brilliant light of reentry. And then back into 
total darkness and then they will be into... 

GREENE I'm not sure, I'm not sure how much light they get 

during the reentry, during the night pass. We will all be a lot 
smarter about that in a few hours. 

PAO Now to Kennedy, KSC. 

BILL HINES CHICAGO SUN TIMES I wonder if you can give us 
coordinates for the iniation of the retro burn? 

STS-8 CHANGE-OP-SHIFT BRIEFING pl8j 09/04/83 8! 30 pm PAGE 5 

GREENK Okay, latitude 22.7 south, longitude is going to be 

86,3 doyfees east. 

HINES Thank you. 

PAD Now to Dryden. 

(garble) PASADENA STAR NEWS I was wondering if you could give 
us any update on the status of the electrophesis experiment? 

GREENE I sure can't, didn't get too involved with it 

during the graveyard shift. There haven't been any changes in 
that, we stopped taking electrophesis data on flight day 2, I 
think it was. 

PAO Okay, that's all from Dryden, anything further here 

in Houston? Yes, sir, your name and affiliation please. 

MIKE WILLIAMSON KJOJ FM RADIO We watched the Shuttle sit 
through a thunderstorm before launch, has there been any concern 
with the water still being left in the heat shield tiles? 

GREENE No, we used to be concerned about that, but on the 

Challenger, when it was delivered from the factory, it had a new 
waterproofing technique that was applied to the tiles at the 
factory and then I believe they've been redoing some of the 
waterproofing after each flight. And the concerns that we used 
to have about tiles absorbing water really aren't a concern 

PAO Anything further here in Houston? Yes sir, John 


PETTY Did I understand you to say there's one TDRS 

experiment still hanging and if so do you know whether they're 
going to try and do it? 

GREENE No, of all the DTOs we had — we had 19 DTOs at the 

beginning of the night tonight, we finished the 19th, which was 
our case number 11. It was a relatively simple DTO and was left 
for last for that reason. There was the opportunity and a desire 
on the part of the TDRS community to go to an optium attitude for 
selected antennas on the vehicle and we opted, barring problems, 
to go to that attitude. Just when I walked in here to get to 
this stage on time, they were about to make that decision and I 
can't tell you whether they did or not. It was in the flight 
plan and because of this IMU thing, they were contemplating 
scrubbing it, I don't know whether they did or not. 


We can find out and advise you on the commentary 

STS-8 CHANGE-OF-SHIFT BRIEFING pl8j 09/04/83 8:30 pm PAGE 6 

GREENE It was another nice piece of data that people would 

have liked to have if we had time to do it. It was not a 
mandatory requirement by any means. 

PAO Any last lingering questions, your final, yes, 

Morton Dean. 

DEAN We're back to the first one. Did the shuttle 

perform all tasks or were there some things that had to be put 
off? Would you say 99 percent... 

GREENE I don't know of anything that, I don't know of 

anthing we didn't do and as a matter of fact because we had the 
extra day we got an opportunity to do some things that weren't in 
the original flight plan like the star tracker testing that we 
did in preparation for our first rendezvous flighty, even got to 
do one of those twice. Everything, Mort, was done just right. 

PAO We're going to go back to nryden again. 

(CBS radio) The question... Excuse me, I've been 
running. The condition of the water closet and what is the 
spacecraft's environment as a result of the problem? 

GREENE The question had to do with the condition of the 

waste management system. As you know we've had a small leak 
we've been contending with throughout the whole flight. During 
the day, to make sure that we don't get any odors in the cockpit, 
we've been feeding that leak because it's so small and we have 
enough makeup gas to support feeding the leak. At night we've 
been shutting down the isolation valve and not supporting the 
leak, so to speak, and probably building up some odor which we 
v/ill probably hear about in a day or two. But it's all perfectly 
manaoeable, it has been managed and it has been operating fine as 
far as we know. 

RON AGERS NFS And I want to find out what changes will you 
make on the next flight from things that you learn on this one? 

GREENE Well, we tend to plan flights as if the flight 

previous is going to work fine and it did and I would hope that 
as a result of that we don't have any changes to the next flight. 

PAO Okay, back here in Houston. Well, it's going to be 

two months before you get a chance to ask a Flight Director a 
question again. Alright thank you all very much for your 


STS-8 CHANGS OF SHIFT BRIEFING pl9ja 9/5/83 3:40 am Paqe I 

PAO Good morning ladies and gentlemen, this is the RTS- 

8 postf light press conference from NASA'r. Dryden Flight Research 
Facility. Before we begin the press conference, I have a few 
announcements. First the Orbiter status press briefing 
conference will be held Tuesday, at llsOO a.m. Pacific Time here 
in the ISF auditorium at Dryden Flight Research Facility, 
Present for that conference will be the Kennedy Ground Operations 
Manager, Fritz Widok. Secondly for this conference, please 
remember to stand, state your name and affilation and ask your 
question. Please keep your questions germain to the STS-8 
mission. After questions at Dryden, we'll take questions from 
the other participating NASA centers. With us today for the STS- 
8 postflight pcess coniEerence is Lt. General James A. Abrahamson, 
NASA associate administrator Cor space flight. General. 

ABRAHAMSON I thought, is this hot, can you, can you hear me on 
that? No, thse aren't on. Are they? Okay. I hope you all 
understand that at least from our viewpoint, you know, this was 
this was just a fabulous mission, hot me just give you a little 
feel for some of the key things at least associated with coming 
in and the final parts of the mission. I know that you've all 
followed the fact that we now only have about 18 anomalies that 
we're tracking. So its the cleanest mission yet. As we landed 
here and the team made an external look at the Orbiter itself, 
looked at the tiles, looked to see If we had any leaks itself, 
looked at the tires and indicated that again it's the cleanest 
mission. The tires look their very best which moans that Dick 
touched down very, very lightly out there. Night landings are 
always, everybody touches down just as light as they can, 
obviously. He touched down about the 2800 foot point, stopped at 
about the 12,000 foot point. Now that's a preliminary look at 
it, so he had about a 9200-foot roll out and Dick v/as trying to 
do what we're calling an operational braking profile, which meant 
that he could get on the brakes at about 140 knots, c.nd then just 
apply, hopefully between 4 and 8 foot pec second, smoothly as he 
goes through. And I looked at the traces and he's got a nice 
smooth buildup and it's an excellent stopping profile for us. 
The crew obviously looks very, very good. You could see Dr. Bill 
feeling his oats as he's coming back as everybody did and as they 
looked around and looked at the vehicle. Outside of that, that's 
the only report that we had, just that look at the crew. 
However, we'll run a check before the conference is over. We 
think it was a surperb mission, and with that 1*11 just turn it 
over for questions. 

PAO Alright. Please stand. 

JULES BERGMAN ABC NEWS Abe, does this mean you can fly at 
night routinely In the future? 

ABRAHAMSON Me think that we can, yes Jules. 

STS-8 CHANGE OF SfllFT BRIEFING plPja 9/5/83 3:40 am Paqe 7. 

OERGMAN HOW about taking off from the Cape In chancy 


ABRAHAMSON Well we didn't first of all let me spend just a 
minute on that. The chanciness was associated with how fast it 
cleared and whether or not it was qoing to clear to a ooint that 
was clearly safe to take off. We i-ould not have launched had 
there been any question at all. And I will admit that we were 
very lucky in that the weather did clear at the last minute after 
that 17 minutes of hold, but it cleared very, very well. And 
just so that you'll have some feel for our decision process as we 
went through that, it was important first of all that there not 
be any lightening and those of you who remember Apollo 12, we 
made it a clear rule that there not be lightening anywhere in the 
area of the launch itself and not be even a remote chance that in 
fact you could have an induced lightening strike on the vehicle 
Itself. In terms of moisture, some of our tests have indicated 
that moisture deteriorates the tile very significantly and 
therefore, our next check was to ensure that, first of all we had 
visibility for an RTLS. Crippen reported that he did, he 
reported that just a few minutes into the launch window as we 
went through, and ther. we concentrated with Crippen flying back 
and forth over the pad ensuring that we did not have any moisture 
and, in fact, what was happening is that that thunderstorm that 
had moved and the moisture which had moved over the pad and then 
3ust kind of sat there for a period of time, dissipated just 
about as rapidly as it built up and there was a breeze which 
moved it off of the pad. So we did not feel that there was even 
a remote chance that we had an unsafe weather condition. The 
chanciness was associated with, in fact, would it move into that 
zone that we considered safe? 

BERGMAN But, Abe, it would appear that Crippen in the STA 

was seeing one thing, and if you read, as :t did, Truly's 
transcript of his report to Mission Control right after launch, 
he apparently could see very little. The phrases, "taking off in 
through a flame of bold fire, like driving through a blanket of 
fog," things like that are in there. Are you still so confident? 

ABRAHAMSON Yes. He did not say that he saw any moisture, in 
terms of all of that, and that, of course, was the key point and 
as Crippen flew the passages back and forth over the pad, the 
real concern is was there any moisture. For a period of time, 
there was, and then it moved out. 

BEN' CAPE TIME MAGAZINE General, Ren Cape, Time Magazine. Two 
qut itions, 1) the spacecraft appeared to have a red light, a 
small glowing red light below the cockpit, cockpit door, if 
that's the right description, as it landed and secondly perhaps 
even a simpler question, why doesn't it have a beacon? That's 
the question from my friends who are photographers. 

STS-8 CHANGE OP SHIFT RRIEFING pl9ja 9/5/83 3:40 am Paqe 3 

ABRAHAMSON The pictuce that you were seeing coming in during 
the ... 

CAPK (garble) watch for it visually. 

ABRAHAMSON. .. .Oh, visually. 
CAPE (garble) of red light 

ABRAHAMSON That was a reflection, we have obviously no lights 
of any kind on the vehicle itself. The problem is of course 
building a light that we can either deploy simply, or making it 
survive the heat of reentry. And it's just not worth it. We 
come right in, in one restricted area and we clear the area, 
making sure that — the reason you have lights on airplanes is so 
other airplanes can see them. We make sure that the Shuttle 
pathway is clear. 

REED COLLiNS CDS There are signs the waste management system 
is still sort of unmanageable and this has happened before to 
less and greater degrees, what do you plan to do about that? 

ABRAHAMSON I have already called for one more review of the 
waste management system. I'm not at all pleased with it and 
we'll just have to find out what each of the problems are and 
chase them down as we've gone through it. 

COLLINS DO you plan to call for any cedesign? 

ABRAHAMSON If on the review that that's clear that we have ho 
do that, we will, 

COLLINS The 9-crew might be interested in your plan. 

ABRAHAMSON I assure you that I've had a crusade on this thing 
for some time. It's very troublesome, it's you know, it's not in 
keeping with what an operational vehicle should be, just like the 
water system and the food system, so we're going to pay a great 
deal of attention to it and frankly I'm very dissapolnted that 
it's so troublesome at this point. 

very quickly if I may. First of all, any wo'-d yet on the 
condition of the astrorats? 

ABRAHAMSON No not yet. 

BAERBACK Secondly, did any of the crewraembers say at what 

point they were able to see the xenon lights on their aoproaoh, 
how soon, how far away from Edwards? 

ABRAHAMSON No, we did not get a visual report on that; 

STS-8 CHANGE OF SHIFT BRIEFING plOja 9/5/83 3:40 am Page 4 

however, Dick said we had just great visibility tonight and Dick 
could see the lights from a long, long way off as he v>?as coming 
into the coast. From the air the xenon lights, because of course 
it's very dark in this whole area of the basin, show up just as a 
strong, strong beacon from a long ways out. ny the way I guess 
I'd like to give some particular credit, this whole effort to 
come up with a night landing system was something that we'd been 
working on of course for some time and like everything else on 
the Shuttle, we're trying to make it both economically feasible, 
but also an important operational capability, that had to bo 
built in. And we had a small team of people, one individual I 
think in particular was the father of this, his name is Dick 
Tumplen and he's from JSC and ho was here as a father making sure 
that today's operation was perfect, and it was. And it's just 
one more example of individuals somewhere in this whole orocess 
who continue to come up with systems to make it operational and 
that's what this mission was, I believe, a demonstation of that 

night launch would be? 

ABRAHAMSON It's a possibility on 15. 


CHANGE OF SHIFT BRIEFING pl9jb 9/5/83 3:40 air, Paqf? I 

LEE OEMBART Los Angeles Times. General did you make contact 
with the spacecraft using TDRS during blackout? 

ABRAHAMSON No, we had an unfortunate circumstance there. Of 
course, that was one of the experimental objectives to use TDRS 
to see if we could come through the blackout itself. 
Unfortunately we had a computer failure at White Sands just about 
the time that we entered into the blackout situation and 
therefore we weren't able to conduct that particular experiment. 

DEMBART Back to 15, What would require it on 15? Do you 

have a payload — what payload would possibly require it on 15? 

ABRAHAMSON Potentially, if the DOD launch came off at that 
time, it would bo a night launch. 

JOHN WILFORD N.Y. TIMES Speaking of TDRS, what plans do you 
for modifying this computer at White Sands that seems to he 
giving you so much trouble? 

ABRAHAMSON Well, I think you have to put that into perspective 
John. Initially when the TDRS program was planned through its 
Initial launch, there was a period of about 5 months that was set 
aside to go through the debugging phase here. And the TDRS is 
the most complex digital tracking system that we ever had, and 
that of course includes the ground station which is a very, very 
complex digital ground station. Any time you produce a digital 
system it takes a long time to debug. Now they were able to get 
to the point where wo could do this mission where we were all 
quite optimistic about the way the TORS performed and do that In 
about 2 months. So I think the prospective should not be that, 
what wo had here was a very, very significant problem, what I 
think the right perspective is that just like wo were able to 
essentially bring the spacecraft back from disaster, we were able 
to, with very diligent work there, get to the point that we had 
by the end of this mission an operational capability that we all 
feel pretty good about going into the STS-9 mission. And it's 
critical for STS-9. I'm not trying to downplay the fact that 
there were problems. If you look at those problems, the first 
ones were, in fact, interface problems -• working the procedures, 
the computer programs, and some of the hardware, there at White 
Sands and their interface with Johnson. And that sort of came to 
a head when we had the lO-hour outage and we had to go back and 
do some very fundamental simulations. However, once we did that 
and for the latter half of the mission, what we really did is we 
got beyond those interface problems and there were only 5 orbits 
that we had failure to support with the TDRS. That didn't mean 
that there weren't problems, but that It was a clear failure to 
support. From the system point of view, the biggest unknown as 
wo came into the mission was the Ku-band auto track, and that 
worked quite consistently throughout the mission. In fact the 
one problem that we really now have to go back and troubleshoot 

CHANGE OF SHIFT BRIEFING pl9jb 9/S/83 3:40 am Page 2 

is an S-band and it's really the combined strength in terms of 
our own antenna signals and the signal that we're getting from 
the TOPS. And we boliovc that most of the ptoblem is an Orbiter 
antenna problem and we already have a modified version of the S- 
band antenna, which is being installed on Orbiter 102, which we 
think will give us about a general 7. Db improved preformance as 
we go around. So we're hopeful about that that should not be the 
significant problem for the Spacelab flight as it has been on 
this flight. 

JULES BERGMAN ABC NEWS. You've kind of answered half my 
question which was, in view of the software problems at White 
Sands and the computer problems with TDRS on this flight, do you 
feel conliident you can go ahead and launch on the October 28th 
schedule for STS-9? 

ABRAHAM30N Yes, the answer is just absolutely yes. That 
doesn't mean that there aren't some important problems and things 
that we have to continue to work out, but we feel comfortable to 
go ahead for STS-9. So we are committed to the October 28th 
launch date. 

Okay, we'll now move to the Johnson Space Center 

for questions. 

Abe, congratulations on your operational bird. 
Question is would you (garble) the speed sir on the state of 

ABKAHAMSON We know that the INSAT is in a good position and 
they are in the final stages of their checkout. There's been a 
delay in that checkout and I think you need to go to the Ford 
public affairs people or the people from the Government of India 
to get that status. As far as we know, it'll be sometime yet a.g 
they complete the checkout. It is a little slower than planned. 

Lynn Sherr, ABC. 

SHERR Abe, forgive me if I'm asking you to repeat 

yourself, but it was one thing to watch it on television, I'm 
sure quite another to be there. I wonder if you could describe 
what it wa:i that you saw and how vou saw it as Challenger came 

ABRAHAMSON Well, first Of all, it helped us all to have the 
infrared system to kind of track it during the last phase 
because, of course, it's a very black sky out here and Dick 
didn't have any help at all from the Moon, just so you can get a 
prospective. Had he wanted until 4:30 this morning, he would 
have had a 7/lOOth Moon to help him. It's very black out here 
Lynn. We got of course an excellent track on the way in, and 
what appears to be a really precise, final pattern and 

CflANGE OF SHIFT BRIEFING pl9jb 9/5/83 3:40 am Page 3 

touchdown. Only 300 feet from the touchdown aiming point, now 
that's as good as we see In the daytime. So what we think we 
have here is a capability at night which would be compatable to 
xn the daytime and if you would like, KSC I understand, is just 
as good as Edwards tonight and that's unusual this time of 
year. So it means a great deal to us that we would have this 
night opportunity for landings in the future. 

Please give your name and affiliation? 

(garble) Tokoyo. when will the Challenger be 
piggybacked to Kennedy Space Center? 

A3RA^iAMS0^^ we're hoping for a fast turnaround this time, even 
faster than we've had in the past and our timeline shows that if 
we don't run into any significant problem that we should be ready 
by Thursday or by the latest, by Friday. 

Paul Recer 

RECER Two questions, on the way in there was a call that 

the track was high and to the north, was that unusual and was 
that related anyway to the night landing, or the fact that it was 
in darkness? 

A8RAHAMS0N I would say that it's not at all related to th<> 
night landing. I'm not sure we understand yet what that really 
meant, why we seen to have that anomaly, but it is a little 

RKCBR Okay, one other quf.^tlon. There's been a number of 

references to trouble with TDRS, and I lust want to clarify and 
make sure that I understand it. All of the trouble with, so 
called trouble, with TDRS is with hardware and procedures on th« 
ground, the spacecraft itself Is healthy and trouble free. Isn't 

ABRAHAMSON Absolutely correct. 

That's all the questions from this room. 

We'll go to the Marshall's Space Plight Center. 

ABRAHAMSON No they haven't, Dave. Of course it's been the 
TDRS operational people that have been working this? however, th»^ 
program office for Spacelab has been following It and we have 
several different activities still as we go ahead. For example, 
we have some 8 days of simulation for Spacelab and this will be a 
kind of a graduation test, this is very critical to us. That 
will be after the TDRS has drifted over Into its position at 41 
degrees west. We have some additional 9 days of testing planned 
with our engineering system tedt laboratory at Johnson and that 

CHANGE OF SHIFT BRIEFING plOjb 9/5/83 3:40 am Page 4 

will, of course, continue to be used for troubleshooting. And 
then we have some 8 days of scheduling with LANDSAT. So we 
believe that with this milestone of this flight behind us, that 
indeed we'll be in a much improved position even over wh^re we 
are on this flight. That doesn't rrean that we expect the whole 
Spacelab mission to be absolutely smooth, not at all, but we had 
to get through a time where the Orbiter, the crew, the ground 
crews could all operate with the TDRS and you just have to get 
through one of these operational phases and that's what an 
important objective of this mission was about. Important enough 
for us to slip it for 8 days, I mean 10 days. So we think that, 
in fact, because of this, that we're optimistic for this Spacela 


STS-8 CHANGE-OF-SIIIFT BRIEFING pl9jc 09/05/83 3:40 an PAGR I 

ADRAHAMSON I suspect that they would only be very minor 

design changes that could be employed. We did make one on this 

one i£ you recall. It was very minor and involved the times in 

the system itself, I think they could only be very small, 

...question of be a niqht landing since they have 
proven to be safe and fairly easy as Truly performed toniqht. 
The wear and tear on the equipment seem very minimal, as you 
mentioned. Do you think there might be a move in future missions 
to move toward night landings, for — to make things easier, 
optimum landings? 

ABRAHAMSON Well of course as we see the niqht landing, what 
that offers us is an improved capability particularly at 
Kennedy. The climatology there is always much better at night 
than it is in the daytime. So that's v;here we're aiming. Our 
next milestone is a landing at Kennedy. And that'll be sometime 
after the first of the year. 

Yes, if you give me a couple of general comments on 
two areas; first off, the continuing maturity of the Shuttle 
system as exemplified by this nominal to the point of being 
boring flight and — with the exception of launch and landing. 
And secondly on the implications of Dr. Thornton's success for a 
broader astronaut population. 

ABRAHAMSON Well, I've heard that reference about a boring 
mission several times and I guess if you kind of put yourself in 
the astronaut's position and start with a thunderstorm that is 
affecting the entire launch period, and then think in terms of 
sitting on top of 4 1/2 million pounds of rocket and rocket fuel, 
and then going into space and conducting a very nearly perfect 
mission and coming back to a first night launch and landing, I 
would hope that nobody really feels that that's boring. T don't, 
I assure you. I think what it really means is we are indeed 
looking forward to a period of what we hope will be these kinds 
of routine successes. And if that's the case, I think it's both 
your responsibility and our responsibility to try to think that 
the adventure really is in the capability that we're adding in 
each mission and what that implies for the future of space 
activities and general and for the United States and our friend"^. 

Okay and — okay and the second part of my question 
about Dr. Thornton blazing the way as it were for a broader 
population base fot an astronaut corps? 

ABRAHAMSON Well, we all knew ahead of time that Bill was going 
to bring back just mountains of data and from all the 
indications, that's exactly what he's doing. We're very pleased 
that we have an approach for the space adaptation syndrome that 
will start with a good solid base of measurement. And I think 
that that has to be extended and extrapolated over a larger 

STS-8 CHANGE-OF-SHIFT BRIEFING plOjc 09/05/83 3:40 am PAGE 2 

population of people going into space. And of course, our 
objective is to try to find ways to keep people at 100% of 
effectiveness, and comfortable and to make the missions 
enjoyable. Not because we're unable to perform anything at this 
point in time. I think we've seen on every flight that no matter 
if there has been sickness during the flight or not, that these 
professionals have been able to do the job. But, of course, we 
are looking ahead to a time when we're going to have lots of 
people go in space. Maybe even newspoople and we don't want you 
to be sick. 

PAO Okay, we are now back at the Dryden Flight Research 

Facility for questions. 

General Abrahamson, can you pin down a little 
closer when we might have our return to Kennedy next year? 

ABRAHAMSON I would hope by STS-11; however, that's still got 
to be traded off and looked at. 

JENIS BELMAN (DC COMMUNICATIONS) Sir, can you give us the 
final status there as to what is going to happen to Columbia 
after STS-9, whether it is going to be put into storage for a 
couple of years until ref urbishings are made for it and secondly, 
has the decision been made on STS-10? 

ABRAHAMSON There has been contingency planning, as we always 
do in the agency, looking at various tradeoffs on how we fly the 
missions just as we look at many kinds of planned effort. One of 
those contingency examinations was to look at keeping the Orbiter 
down for a long period of time. That is not a decision at all 
and it's very unlikely, in fact, that we would carry out that 
kind of a program. What we're really searching for is the 
optimum mix of flying the orbiters, flying them in a safe way and 
insuring that we can best support the missions and maintain our 
spare supply. So there is no decision at this point in time 
about the way we'll use Orbiter 102. Would you remind me of Uhe 
second half of the question, please. 

BELMAN All the second question was as far as STS-10. 

Since there was a problem there with the (garble) ruby payload, 
mission 10 has been scrubbed, if I'm not mistaken. Has there 
been anything that's been able to put in its place yet? 

ABRAHAMSON There's never been announcement about what STS-10 
payload is except that it's a DOD payload and... 

MARK BAERBACK (UPI) After STS-7, out of necessity you folks 
used a mini convoy and said you were pleased with the results. 
This time you were back up to the full convoy. Is there an 
inkling when you folks might consider scaling down the convoy on 
a permanent basis? 

STS-8 CHANGE-OF-SHIFT BRIEFING pl9jc 09/05/83 3:40 am PAGE 3 

ABRAHAMSON I think we'll have to look at that some more. We 
haven't made any final decisions on that. 

(GARBLE) (LOS ANGELES TIMES) You said or they said they were a 
little north of the aiming point and also could you quantify the 
altitude, how much in terms of feet they were above the aiminq 
point of the altitude figure? 

ABRAHAMSON No, we're not sure here if we have an instrument 
problem at this point or not. And I don't have those results 
yet. All we know is that we have an anomalous report in terms of 
what we saw on the ground and what we saw in the air. 

DENNIS ADAMS (SN PRESS) I'm curious about your encryption 
process, are you going to continue to use it? Did you use it on 
this mission and will you use it in the future? 

ABRAHAMSON We did run a test on this mission and we'll use it 
if necessary. 

ADAMS Could you expand on that? What kind of process do 

you have specifically, what did you use it on in this mission and 
do you see all future missions being coded? 

ABRAHAMSON The answer to the last is no. And it's a standard 
encryption process and beyond that, T can't give any more 
details . 

ADAMS What's it called? 

ABRAHAMSON An encryption process. 

Alright if there are no further questions, this 
concludes the STS-8 postflight press conference. Thank you all 
very much.