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RFI: Calculated orbital decay rate of an unbooster ISS?
On Jun 19, 11:37*am, Pat Flannery wrote:
What will the next ones be named? Any list out there? If they are all science fiction related, I imagine Cyrano de Bergerac and H.G. Wells can't be far behind. Supposing a certain europreference and spaceflight orientation, let's see... Fritz Lang Stanislaw Lem Arthur C. Clarke And, of course, Douglas Adams |
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RFI: Calculated orbital decay rate of an unbooster ISS?
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RFI: Calculated orbital decay rate of an unbooster ISS?
On Jun 20, 4:16*am, " wrote:
And, of course, Douglas Adams If there were going to be lots of them, I'd name some not after Adams but after some of his ships, starting with Starship Titanic - good name for something that's only going to be used once, IMHO. |
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RFI: Calculated orbital decay rate of an unbooster ISS?
Jorge R. Frank wrote:
NASA's "line in the sand" for ISS is right within that range, 278 km. What happens at that altitude ? Days before it falls out of the sky ? Hours ? Minutes ? Or is 278 the point at which the time it would take to launch a progress/ATV to reboost the ISS would be longer than the time for the decay to reach re-entry ? At what altitude do they have to orient the solar arrays so that the "wind" doesn't blow them off ? Would that be at 278 ? above 278 or below 278km ? |
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RFI: Calculated orbital decay rate of an unbooster ISS?
On Jun 19, 10:01*pm, Neil Gerace wrote:
If there were going to be lots of them, I'd name some not after Adams but after some of his ships, starting with Starship Titanic - good name for something that's only going to be used once, IMHO. Ian Banks' Culture ships... |
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RFI: Calculated orbital decay rate of an unbooster ISS?
On 25 Jun 2008 15:33:35 -0800, in a place far, far away, Louis
Scheffer made the phosphor on my monitor glow in such a way as to indicate that: (Rand Simberg) writes: No, but more mass reduces the number of reboosts needed. Once the shuttle no longer visits, has there been any thought of raising the orbit to reduce drag? Good question. Probably not. But maybe Jorge knows otherwise. |
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RFI: Calculated orbital decay rate of an unbooster ISS?
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RFI: Calculated orbital decay rate of an unbooster ISS?
On Jun 25, 6:39 pm, (Rand Simberg)
wrote: On 25 Jun 2008 15:33:35 -0800, in a place far, far away, Louis Scheffer made the phosphor on my monitor glow in such a way as to indicate that: (Rand Simberg) writes: No, but more mass reduces the number of reboosts needed. Once the shuttle no longer visits, has there been any thought of raising the orbit to reduce drag? Good question. Probably not. But maybe Jorge knows otherwise. yes, it will be raise |
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RFI: Calculated orbital decay rate of an unbooster ISS?
Louis Scheffer wrote:
h (Rand Simberg) writes: No, but more mass reduces the number of reboosts needed. Once the shuttle no longer visits, has there been any thought of raising the orbit to reduce drag? Already answered earlier in the thread: "ISS will gradually be boosted back up as the shuttle program ends and the next solar maximum approaches." |
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RFI: Calculated orbital decay rate of an unbooster ISS?
03:18, mercoledì 18 giugno 2008,
Jorge R. Frank: OM wrote: ...Has anyone done any estimates of roughly how long ISS could remain in orbit without any boosts from the Shuttle, Soyuz or Progress resupply missions? The issue has come up over on a BSG group, and I actually haven't been able to find anything on the NASA sites about this. Depends on where the station is within the reboost cycle, but IIRC it's a minimum of 180 days. I wonder if they have ever thought using an ion jet engine to keep ISS in its orbit. Aren't ion engines more efficient than chemical ones? Thanks. -- °¿° |
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