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#1080
by
Aobrien
on 10 Apr, 2010 16:58
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Why can Soyuz land in a few hours after undocking but shuttle takes at least one whole day (Depending when late inspection happens)?
Thanks
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#1081
by
Jorge
on 10 Apr, 2010 17:03
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Why can Soyuz land in a few hours after undocking but shuttle takes at least one whole day (Depending when late inspection happens)?
Thanks
Undocking, flyaround, separation, late inspection, cabin stow, FCS checkout, deorbit prep.
These take time.
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#1082
by
Sesquipedalian
on 12 Apr, 2010 22:48
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A Columbia question, in two parts, based on this picture:
http://upload.wikimedia.org/wikipedia/en/c/c8/Spacehab_S107e05359.jpg1) What's the innermost RCC panel that can be seen on this picture? Obviously you can't see all the way to the damaged panel, which IIRC was number 8.
2) The shuttle's port wing looks like it has some dirt or discoloration on it, whereas the starboard wing looks pristine. Could this be ejecta from the foam impact?
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#1083
by
psloss
on 12 Apr, 2010 22:57
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A Columbia question, in two parts, based on this picture:
http://upload.wikimedia.org/wikipedia/en/c/c8/Spacehab_S107e05359.jpg
1) What's the innermost RCC panel that can be seen on this picture? Obviously you can't see all the way to the damaged panel, which IIRC was number 8.
2) The shuttle's port wing looks like it has some dirt or discoloration on it, whereas the starboard wing looks pristine. Could this be ejecta from the foam impact?
In the CAIB report, Volume 1.
1. RCC 12L. Look at page 146. (Don't forget that the damage was likely on the underside of the panel, too).
2. Pre-existing discoloration, likely same as pretty much everywhere else -- the outgassing of the waterproofing during previous re-entries. You can find other, higher-res pre-launch imagery of the orbiter, but there's a low-res shot on page 10 of the report.
Edit: either same shot as in the report or very similar and higher-res, via NASA KSC Multimedia Gallery:
http://mediaarchive.ksc.nasa.gov/detail.cfm?mediaid=18056
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#1084
by
Sesquipedalian
on 13 Apr, 2010 02:31
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Thanks for the comprehensive and helpful answers!
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#1085
by
smith5se
on 16 Apr, 2010 09:50
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Quick question: In picture below (link), what is the red stuff repairing the cracked tiles (I'm assuming its some sort of repair)?
http://twitpic.com/1ejcrh/full
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#1086
by
Jim
on 16 Apr, 2010 12:11
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Quick question: In picture below (link), what is the red stuff repairing the cracked tiles (I'm assuming its some sort of repair)?
http://twitpic.com/1ejcrh/full
RTV
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#1087
by
GoForTLI
on 18 Apr, 2010 08:29
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What factors go into determining which of the 3 APUs will be used for the FCS checkout?
And while I'm asking, what determines the start sequence prior to entry?
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#1088
by
NavySpaceFan
on 19 Apr, 2010 17:55
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Question re: OBSS placement during undocking and fly around, why is it placed in that manner (i.e. perpendicular across the payload bay) and does it have a term associated with it?
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#1089
by
tminus9
on 19 Apr, 2010 19:05
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At what point in the entry trajectory does the plasma trail cease to be visible from the surface? Is it dependent on earth-relative velocity? Curious for viewing opportunities during Tuesday's entry if KSC is selected.
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#1090
by
Jorge
on 19 Apr, 2010 20:51
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Question re: OBSS placement during undocking and fly around, why is it placed in that manner (i.e. perpendicular across the payload bay)
Minimize loads on RMS/OBSS during a period of high orbiter RCS thruster activity.
and does it have a term associated with it?
"Undocking position".
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#1091
by
NavySpaceFan
on 19 Apr, 2010 23:12
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Question re: OBSS placement during undocking and fly around, why is it placed in that manner (i.e. perpendicular across the payload bay)
Minimize loads on RMS/OBSS during a period of high orbiter RCS thruster activity.
and does it have a term associated with it?
"Undocking position".
Great! Thanks Jorge!!
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#1092
by
Jorge
on 21 Apr, 2010 02:50
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Question re: OBSS placement during undocking and fly around, why is it placed in that manner (i.e. perpendicular across the payload bay)
Minimize loads on RMS/OBSS during a period of high orbiter RCS thruster activity.
and does it have a term associated with it?
"Undocking position".
Great! Thanks Jorge!!
FYI, all the RMS/OBSS positions can be found in the PDRS checklists:
http://www.nasa.gov/centers/johnson/news/flightdatafiles/index.htmlCheck the REFERENCE DATA section, both the generic and flight supplement. The UNDOCK position is in the 131 flight supplement, p 3-3.
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#1093
by
steveS
on 24 Apr, 2010 02:23
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Provided that STS-134 slips into November is a descending node entry possible?
Also in the case of a descending node entry, is the way of launch/orbit insertion etc different (compared to an ascending node entry)?
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#1094
by
Jorge
on 24 Apr, 2010 03:31
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Provided that STS-134 slips into November is a descending node entry possible?
Yes, the flight rule limitation for noctilucent clouds only applies in the summer. Whether 134 uses a descending node entry depends on the mission timeline and crew sleep-shifting.
Also in the case of a descending node entry, is the way of launch/orbit insertion etc different (compared to an ascending node entry)?
No. The ascent is *always* ascending, due to range safety constraints on SRB recovery and ET disposal.
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#1095
by
steveS
on 27 Apr, 2010 03:30
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1. How was it possible for Columbia on STS-80 to stay upto 17 days in orbit since it did not have SSTP ?
2. What is the maximum duration that Atlantis can stay up in Space ? (it also does not have a SSTP). I read some where that Shuttles were originally to stay upto 28 days in orbit. Is that correct?
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#1096
by
kch
on 27 Apr, 2010 03:37
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1. How was it possible for Columbia on STS-80 to stay upto 17 days in orbit since it did not have SSTP ?
2. What is the maximum duration that Atlantis can stay up in Space ? (it also does not have a SSTP). I read some where that Shuttles were originally to stay upto 28 days in orbit. Is that correct?
http://en.wikipedia.org/wiki/Extended_Duration_Orbiter
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#1097
by
ChrisGebhardt
on 27 Apr, 2010 19:00
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1. How was it possible for Columbia on STS-80 to stay upto 17 days in orbit since it did not have SSTP ?
2. What is the maximum duration that Atlantis can stay up in Space ? (it also does not have a SSTP). I read some where that Shuttles were originally to stay upto 28 days in orbit. Is that correct?
2. Atlantis can stay in space for 12-days with 2 additional days for landing wave-off contingencies (like weather). Basically, STS-132 is extended as long as possible... a 12+0+2 day mission.
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#1098
by
elmarko
on 27 Apr, 2010 23:14
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How does Atlantis do that and the others can't? More refined orbiter design, I would obviously guess?
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#1099
by
Lee Jay
on 27 Apr, 2010 23:41
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How does Atlantis do that and the others can't? More refined orbiter design, I would obviously guess?
Actually, it's the reverse, sort-of. The other two orbiters can stay longer on ISS missions because they are equipped with SSPTS so they can draw power from the station while they're docked, thus preserving their own cryos.