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"Mysterious Object Floats Away From International Space Station"
"JimO" wrote in
: We now have seen two objects leaving the station, during the very brief intervals when the crew is actually eyeballing the outside (and only about a tenth of the departure trajectories, at that). Maybe an hour or two per week, at most -- perhaps 1% of their time. Can we extrapolate that dozens if not hundreds of objects have actually come off, of which only 1% were observed? I don't know if 1% is the right number, but it is fairly obvious that not all ISS debris-shedding events have been observed. -- JRF Reply-to address spam-proofed - to reply by E-mail, check "Organization" (I am not assimilated) and think one step ahead of IBM. |
#12
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"Mysterious Object Floats Away From International Space Station"
JimO wrote: We now have seen two objects leaving the station, during the very brief intervals when the crew is actually eyeballing the outside (and only about a tenth of the departure trajectories, at that). Maybe an hour or two per week, at most -- perhaps 1% of their time. Can we extrapolate that dozens if not hundreds of objects have actually come off, of which only 1% were observed? Could it be shedding insulation blanket/micrometeor protection material, like Hubble did? Do the objects appear to have come from any particular part of its structure, such as the U.S. or Russian modules, truss, or solar arrays? This, combined with the air leak and unexplained "bang" are more than a little disturbing. Pat |
#13
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"Mysterious Object Floats Away From International Space Station"
Jorge R. Frank wrote: I don't know if 1% is the right number, but it is fairly obvious that not all ISS debris-shedding events have been observed. Why do I get the feeling that this is related to the mysterious "bang" sound somehow? Pat |
#14
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"Mysterious Object Floats Away From International Space Station"
Pat Flannery wrote:
This, combined with the air leak and unexplained "bang" are more than a little disturbing. I am not worried. Does anyone have any background on if this sort of stuff happened on Mir ? Also, remember that they have experienhts outdoors to expose various materials to space to study their effects. It could simply be some of these things coming loose. What we also do not have in terms of information is how much of a shock the progress dockings generate. It could very well be stuff from Progress. BTW Sasha is smoking !!!! This morning, while working behind a panel, he kept tripping the smoke alarm in that cavity ! First one was taken seriously by both US and russian ground controllers, but once Foale noticed the detector was right next to Shasha's head, they realised what was happening. |
#15
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"Mysterious Object Floats Away From International Space Station"
"John Doe" wrote in message ... BTW Sasha is smoking !!!! This morning, while working behind a panel, he kept tripping the smoke alarm in that cavity ! First one was taken seriously by both US and russian ground controllers, but once Foale noticed the detector was right next to Shasha's head, they realised what was happening. About what time was that? I want to follow up on this with PAO. You can email me privately at joberg at houston.rr.com |
#16
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"Mysterious Object Floats Away From International Space Station"
Pat Flannery wrote in
: Jorge R. Frank wrote: I don't know if 1% is the right number, but it is fairly obvious that not all ISS debris-shedding events have been observed. Why do I get the feeling that this is related to the mysterious "bang" sound somehow? Because humans are naturally adept at "connecting the dots", whether or not they are actually connected. -- JRF Reply-to address spam-proofed - to reply by E-mail, check "Organization" (I am not assimilated) and think one step ahead of IBM. |
#17
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"Mysterious Object Floats Away From International Space Station"
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#18
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"Mysterious Object Floats Away From International Space Station"
rk wrote: Foam logic. I would be concerned about any unexplained bangs and "debris shedding" on general principles. "It could by X" or "it could be Y" is not the type of engineering rigor needed for safety. ....And the concept that it's "as safe as Mir" doesn't really reassure me.... Pat |
#19
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"Mysterious Object Floats Away From International Space Station"
Jorge R. Frank wrote: Because humans are naturally adept at "connecting the dots", whether or not they are actually connected. Well, let's hope that they aren't in this case. Because that could imply that the thing either has been damaged to an unknown degree by a impact, and things are still falling off from the damaged area; or is structurally unsound, and has begun to shed things- some of which make sounds as they leave. Pat |
#20
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"Mysterious Object Floats Away From International Space Station"
In article , JimO wrote:
We now have seen two objects leaving the station, during the very brief intervals when the crew is actually eyeballing the outside (and only about a tenth of the departure trajectories, at that). Maybe an hour or two per week, at most -- perhaps 1% of their time. Can we extrapolate that dozens if not hundreds of objects have actually come off, of which only 1% were observed? Maybe. Bear in mind that 50% (g) of our datasets were close to an external event - the Progress docking - which may well have caused it, so it's not automatic to assume that they're both typical... but it is a valid assumption we've missed a lot. Thought for a future resupply mission (ie, one without 'construction' EVAs) - send a two-man EVA to study a representative part of the station; part of a module and truss, say, in great detail; compare this to the known "pristine" state, and try to extrapolate "wastage" rates from that? -- -Andrew Gray |
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