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#1
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Why dump Skylab's atmosphere?
In the midst of a discussion over on rec.arts.sf.written I ran
across a point about Skylab that I hadn't noticed before. Following the end of the third and most confusingly numbered astronaut mission: After the crew had returned to earth and the end-of-mission engineering tests were finished, flight controllers vented the atmosphere from the workshop, oriented the cluster in a gravity-gradient-stabilized attitude with the docking adapter pointed away from the earth, and shut down most of its systems. http://history.nasa.gov/SP-4208/ch19.htm OK, but why vent the atmosphere? -- Joseph Nebus ------------------------------------------------------------------------------ |
#2
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Why dump Skylab's atmosphere?
Joseph Nebus wrote:
In the midst of a discussion over on rec.arts.sf.written I ran across a point about Skylab that I hadn't noticed before. Following the end of the third and most confusingly numbered astronaut mission: After the crew had returned to earth and the end-of-mission engineering tests were finished, flight controllers vented the atmosphere from the workshop, oriented the cluster in a gravity-gradient-stabilized attitude with the docking adapter pointed away from the earth, and shut down most of its systems. http://history.nasa.gov/SP-4208/ch19.htm OK, but why vent the atmosphere? I suppose they might have been concerned with moisture condensation (especially on the electronics) and pressure excursions caused by the fact that they were no longer actively maintaining the internal temperature. Those are just guesses though. |
#3
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Why dump Skylab's atmosphere?
Joseph Nebus wrote: In the midst of a discussion over on rec.arts.sf.written I ran across a point about Skylab that I hadn't noticed before. Following the end of the third and most confusingly numbered astronaut mission: After the crew had returned to earth and the end-of-mission engineering tests were finished, flight controllers vented the atmosphere from the workshop, oriented the cluster in a gravity-gradient-stabilized attitude with the docking adapter pointed away from the earth, and shut down most of its systems. http://history.nasa.gov/SP-4208/ch19.htm OK, but why vent the atmosphere? So that a meteor hit wouldn't cause it to start venting air and make it start spinning? Pat |
#4
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Why dump Skylab's atmosphere?
On Jul 12, 10:59 pm, Pat Flannery wrote:
Joseph Nebus wrote: In the midst of a discussion over on rec.arts.sf.written I ran across a point about Skylab that I hadn't noticed before. Following the end of the third and most confusingly numbered astronaut mission: After the crew had returned to earth and the end-of-mission engineering tests were finished, flight controllers vented the atmosphere from the workshop, oriented the cluster in a gravity-gradient-stabilized attitude with the docking adapter pointed away from the earth, and shut down most of its systems. http://history.nasa.gov/SP-4208/ch19.htm OK, but why vent the atmosphere? So that a meteor hit wouldn't cause it to start venting air and make it start spinning? So it wouldn't smell like a locker room if they came back? |
#5
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Why dump Skylab's atmosphere?
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#6
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Why dump Skylab's atmosphere?
Pat Flannery wrote:
That does raise the question of how it was supposed to be repressurized if the Shuttle had been ready to go up to it and re-crew it. Possibly the decision to vent it was made before the decision to visit it with the Shuttle. D. -- Touch-twice life. Eat. Drink. Laugh. http://derekl1963.livejournal.com/ -Resolved: To be more temperate in my postings. Oct 5th, 2004 JDL |
#7
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Why dump Skylab's atmosphere?
I always had this image in my head that the first astronauts to visit Skylab
after several years of abandonment, would look like the scene were the astronauts board Discovery in 2010. The would enter a station dark and cold with no light . |
#8
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Why dump Skylab's atmosphere?
On Jul 13, 5:35�am, (Derek Lyons) wrote:
Pat Flannery wrote: That does raise the question of how it was supposed to be repressurized if the Shuttle had been ready to go up to it and re-crew it. Possibly the decision to vent it was made before the decision to visit it with the Shuttle. D. -- Touch-twice life. Eat. Drink. Laugh. http://derekl1963.livejournal.com/ -Resolved: To be more temperate in my postings. Oct 5th, 2004 JDL they shut down everything but a solar powered receiver, and were able to wake skylab up after a long slumber. they controlled its attitude and recharged it batteries to have limited control of where it deorbited |
#9
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Why dump Skylab's atmosphere?
Dr.Smith wrote:
I always had this image in my head that the first astronauts to visit Skylab after several years of abandonment, would look like the scene were the astronauts board Discovery in 2010. The would enter a station dark and cold with no light . Read up on the rescue repair mission to Salyut 7, because that's a lot like what it was like: http://en.wikipedia.org/wiki/Salyut_7 Pat |
#10
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Why dump Skylab's atmosphere?
On Aug 14, 3:44�am, Pat Flannery wrote:
Dr.Smith wrote: I always had this image in my head that the first astronauts to visit Skylab after several years of abandonment, would look like the scene were the astronauts board Discovery in 2010. �The would enter a station dark and cold with no light . Read up on the rescue repair mission to Salyut 7, because that's a lot like what it was like:http://en.wikipedia.org/wiki/Salyut_7 Pat Last crew made prep for future visitors left a christmas tree of stuff on display junking the saturn family of launchers was a major blunder |
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