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#1900
by
padrat
on 05 May, 2011 17:26
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I've been in the aft once or twice. You have to clear your pockets and anything that you take into the aft (tools, paper, etc.) has to be inventoried before you go in and when you come out. I believe the crew cabin is the same, except you also have to wear bunny suits.
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#1901
by
madscientist197
on 06 May, 2011 09:16
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Interesting that the crew cabin requires bunny suits. What's the rationale there?
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#1902
by
padrat
on 06 May, 2011 11:10
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They're more strict with tiny particles. I'm sure they don't want anything floating into the eyes of the Astros when they go weightless, like grains of sand.
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#1903
by
DaveS
on 06 May, 2011 21:33
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What color is the payload bay floodlights? I'm asking because there's some disagreements in various videos about the color.
For example, a shot from STS-114 of PLBD closing, shows it to be a white color while another this time from STS-130 shows it to be a yellow-green color.
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#1904
by
JayP
on 06 May, 2011 22:50
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The lights are metal-halide which gives off a blue white light (above 5000 K) the greenish cast is what you get when a digital camera is balanced for sunlight but is shooting under a bluer light.
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#1905
by
DaveS
on 06 May, 2011 22:58
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The lights are halogen which gives off a blue white light (above 5000 K) the greenish cast is what you get when a digital camera is balanced for sunlight but is shooting under a bluer light.
OK, so the STS-114 shot is the more correct one?
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#1906
by
Lee Jay
on 06 May, 2011 23:21
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The lights are halogen which gives off a blue white light (above 5000 K) the greenish cast is what you get when a digital camera is balanced for sunlight but is shooting under a bluer light.
Are you sure? First of all, Halogens are in the 2800-3400K range. Second, that color cast is what you get when you image a single or dual phosphor fluorescent or metal halide when you are daylight balanced. If you shoot a Halogen when you are daylight balanced, you'll get a yellow-orange cast.
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#1907
by
JayP
on 07 May, 2011 00:35
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The lights are halogen which gives off a blue white light (above 5000 K) the greenish cast is what you get when a digital camera is balanced for sunlight but is shooting under a bluer light.
Are you sure? First of all, Halogens are in the 2800-3400K range. Second, that color cast is what you get when you image a single or dual phosphor fluorescent or metal halide when you are daylight balanced. If you shoot a Halogen when you are daylight balanced, you'll get a yellow-orange cast.
Sorry, miss typed in the first post. The lights are metal-halide.
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#1908
by
Lee Jay
on 07 May, 2011 01:37
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The lights are halogen which gives off a blue white light (above 5000 K) the greenish cast is what you get when a digital camera is balanced for sunlight but is shooting under a bluer light.
OK, so the STS-114 shot is the more correct one?
If you mean properly white balanced, then yes.
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#1909
by
msc
on 10 May, 2011 14:54
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I tried a search, but don't think I was crafty enough to come up with the right search terms.
When and how do they remove the shields over the windows?
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#1910
by
mkirk
on 10 May, 2011 15:25
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I tried a search, but don't think I was crafty enough to come up with the right search terms.
When and how do they remove the shields over the windows?
The soft covers are removed by hand during the T-11 hour hold before the RSS (rotating service structure) is retracted.
Mark Kirkman
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#1911
by
msc
on 11 May, 2011 01:04
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I tried a search, but don't think I was crafty enough to come up with the right search terms.
When and how do they remove the shields over the windows?
The soft covers are removed by hand during the T-11 hour hold before the RSS (rotating service structure) is retracted.
Mark Kirkman
Thanks. that's what I figured, but I saw a picture of Endeavour with the the shields on, and I thought it was taken after the RSS retract. Guess not.
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#1912
by
brettreds2k
on 13 May, 2011 13:55
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Maye have been when they retract the RSS for payload arrival to the pad
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#1913
by
sivodave
on 15 May, 2011 16:59
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Hi all.
I was reading the other day this article regarding a clearance issue between the KU-Antenna and the OBSS. This problem was spotted first for STS-114 also if it appears that was there since the beginning since originally for the Shuttle it was thought to use to robotic arms.
My question is: how this issues has been handled? the article doesn't say anything else.
ps: the article is
http://spaceflightnow.com/shuttle/sts114/050519tankingpre/thanks very much.
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#1914
by
mtakala24
on 15 May, 2011 22:08
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My question is: how this issues has been handled? the article doesn't say anything else.
The Shuttle's robotic arm (SRMS) was designed to stored on the port side of the payload bay and the KU dish is in the starboard forward corner of the bay, so they didn't interfere with eachother.
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#1915
by
sivodave
on 16 May, 2011 05:23
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The Shuttle's robotic arm (SRMS) was designed to stored on the port side of the payload bay and the KU dish is in the starboard forward corner of the bay, so they didn't interfere with eachother.
I was speaking about the KU antenna and the OBSS not the RMS. Originally they had tought to put a second arm on the same side of the Ku antenna, but apparently this clearance issue never come up until when for STS-114 they started to install the OBSS which uses the same mounting point designed for this second arm that was never added. Ku-antenna and OBSS are on the same side, the RMS is on the other side.
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#1916
by
billshap
on 16 May, 2011 10:44
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What is the "Air-Air" channel that is checked during the comm checks along with A/G1, A/G2, and UHF?
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#1917
by
AnalogMan
on 16 May, 2011 15:22
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Hi all.
I was reading the other day this article regarding a clearance issue between the KU-Antenna and the OBSS. This problem was spotted first for STS-114 also if it appears that was there since the beginning since originally for the Shuttle it was thought to use to robotic arms.
My question is: how this issues has been handled? the article doesn't say anything else.
ps: the article is http://spaceflightnow.com/shuttle/sts114/050519tankingpre/
thanks very much.
It was dealt with by confirming positive clearances and imposing a rule on antenna deployment. The STS-114 Orbiter Flight Readiness Review (FRR) had the following note on the clearance issue:
○ Ku-Band Deployment Clearance
• As the Ku-Band is deployed with the OBSS in the stowed (or rolled in) position, the static clearance gets as close as 0.69”. There is a minimum of 2.6” of static clearance for the ascent/descent configuration of the Ku-Band and the OBSS.
• Worse case on-orbit thermal analysis of the 0.69” static condition has been completed (assumes re-entry thermal conditions) and positive clearance (0.30”) has been verified. Dynamic clearance for ascent/decent phase was also completed and showed positive clearance.
• OCAD 730 has been put in place as an operational constraint so the KU-band will be deployed and stowed only when the OBSS is stowed and the MPM’s are rolled in.------
OCAD - Operational Control Agreement Database
MPMs - Manipulator Positioning Mechanisms (supports for the SRMS and OBSS along the payload bay sills)
Rolled in = stowed position (MPMs are rotated inwards towards the payload bay by ~35 degrees from their deployed position to allow payload bay doors to close)
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#1918
by
sivodave
on 16 May, 2011 17:39
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Thanks AnalogMan that's exactly what I wanted to know. Where did you get the results of the FRR? is it here on the forum? L2 maybe? thanks again
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#1919
by
AnalogMan
on 16 May, 2011 17:55
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Thanks AnalogMan that's exactly what I wanted to know. Where did you get the results of the FRR? is it here on the forum? L2 maybe? thanks again
With STS-114 being the Return to Flight (RTF) mission, quite a lot of internal documents are available in the public domain. The one I quoted from can be found here:
http://www.hq.nasa.gov/pao/FOIA/FRRdocs/13_orbiter.pdfThere's a section on the OBSS (pages 100 to 112) - the whole document is 168 pages long and ~8Mb.
Edit to add: If you copy and paste the following text into Google you will get a list of quite a few of these kinds of document:
"STS-114" site:http://www.hq.nasa.gov/pao/FOIA/FRRdocs filetype:pdf
Edit 2: This direct link is even better
http://www.hq.nasa.gov/pao/FOIA/frrdocs.htm
