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#1140
by
wally
on 14 May, 2010 13:28
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As I understand, it was a deployment failure. It was fixed on the ground and now it's up and running.
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#1141
by
psloss
on 14 May, 2010 13:33
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I am interested to know more about the KU band failure on the previous mission- what was the cause, how was it diagnosed, how was it fixed, what checks / fixes if any were done on Atlantis. I do not have L2 access.
As I understand, it was a deployment failure. It was fixed on the ground and now it's up and running.
No, it was a transistor failure in the deployed assembly (in the exciter), not a deploy mechanism failure.
The DA box on Discovery was replaced with a spare unit. The one on Atlantis was checked out fine and will fly as-is. If the unit flying on this mission were to have a similar failure, the flight control teams and flight crew would pretty much execute the same procedures they did on the last mission.
Story on this was published on May 4th:
http://www.nasaspaceflight.com/2010/05/sts-132-agency-frr-ku-band-root-cause-found/
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#1142
by
Lee Jay
on 14 May, 2010 13:42
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#1143
by
iskyfly
on 14 May, 2010 14:19
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Thank you!
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#1144
by
brettreds2k
on 14 May, 2010 18:31
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Is there any video that NASA has released that keeps the camera on the ET rolling after seperation and shows it as it re enters until the camera burns up?
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#1145
by
psloss
on 14 May, 2010 18:33
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#1146
by
iskyfly
on 14 May, 2010 19:31
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She walked into MCC about 10 mins ago. Doesnt appear to be a shift change going on.
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#1147
by
chksix
on 14 May, 2010 19:49
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#1148
by
psloss
on 14 May, 2010 19:54
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She walked into MCC about 10 mins ago. Doesnt appear to be a shift change going on.
Edit -- nope, I was wrong. It wasn't a break, it was a shift change -- an upcoming shift change. There's always a handover period between shifts and she (Orbit 2 FAO) was coming into the flight control room with the rest of the Orbit 2 team to get ready to take the handover from the ascent team.
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#1149
by
hygoex
on 14 May, 2010 20:47
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Will they send the booster recovery ships out for the final mission? If so, are they going to ship them back to Utah for reuse (Ares I?), scrap them, or send the spent SRBs to museums?
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#1150
by
sdsds
on 14 May, 2010 23:54
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What is the name for the structure at the base of the orbiter that partially shields the SSMEs from the SRB plumes?
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#1151
by
Jim
on 15 May, 2010 00:00
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What is the name for the structure at the base of the orbiter that partially shields the SSMEs from the SRB plumes?
Body flap. It is aerosurface.
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#1152
by
HelixSpiral
on 15 May, 2010 00:01
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You mean the rectangular piece that extends the bottom of the orbiter back under the engines? That's the body flap and it's actually an aerosurface used to control pitch trim.
ETA: Jim beat me.
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#1153
by
sdsds
on 15 May, 2010 00:43
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#1154
by
Jim
on 15 May, 2010 00:57
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#1155
by
Lee Jay
on 15 May, 2010 01:09
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#1156
by
Alpha Control
on 15 May, 2010 03:22
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I have a question regarding the ET SEP event. As I watched it today during the 132 launch, I was wondering about the forces involved during this key event.
As the orbiter initiates ET SEP, does the tank have a downward force component that naturally pulls it away from the orbiter? In other words, if the orbiter did not perform any RCS firings, what are the tank dynamics at the moment of separation? Would the tank automatically drift downward relative to the orbiter? Or are the orbiter RCS firings required to achieve separation?
Obviously the orbiter is using RCS firings to increase the separation, but are these required (tank will not separate without the RCS firings), or desired (easier to achieve photography)?
Thanks,
David
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#1157
by
Jim
on 15 May, 2010 03:37
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The tank would move away from the orbit due to the release of the stored energy in the sep bolts.
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#1158
by
Alpha Control
on 15 May, 2010 16:58
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The tank would move away from the orbit due to the release of the stored energy in the sep bolts.
Thanks Jim!
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#1159
by
aurora899
on 15 May, 2010 17:09
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On a slightly different note, does anyone know who the woman in the black suit with the long, blonde hair is walking out with the STS-132 astronauts? She can just be seen in this photo above Toni Antonelli's head.