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One thing not covered in this article (and maybe the CAIB report? I don't know) is whether the Russians could have done something useful in the rescue. Could enough fuel and scrubber tanks have been boosted to Columbia on a Soyuz or Progress to get it up to the ISS?



> One thing not covered in this article (and maybe the CAIB report? I don't know) is whether the Russians could have done something useful in the rescue. Could enough fuel and scrubber tanks have been boosted to Columbia on a Soyuz or Progress to get it up to the ISS?

No.

On STS-107, Columbia was launched into a 39° orbit. The ISS is at an inclination of 51°. It is very expensive to make an in-orbit change-of-plane.

A quick back-of-the-envelope calculation shows that you would need 50,000 kg of fuel to change the orbit of an empty Shuttle from 39° to 51°. The Progress M has a cargo capacity of 2600 kg -- and the Russians launch one every two months. 20 Progresses all at once wouldn't have been very practical.

If you were going to attempt a rendezvous with Columbia from Baikonur, it would be better to send Soyuzes and bring them down two-at-a-time. The Russians do have the Soyuz on an assembly line, but I don't think they have four of them just sitting around.


This is a bit confusing. Since Columbia the contingency plan for all of the shuttles (except one, which was to the Hubble) was apparently to have them go to the ISS and wait there for rescue from the standby shuttle (or later the next mission once the ISS was fully complete). Was Columbia at an unusual inclination for a shuttle mission?

[edit] Answered my own question, this does seem to be the case. At least for the missions after STS-107.


> Was Columbia at an unusual inclination for a shuttle mission?

Here's the breakdown of orbital inclinations for Shuttle missions:

   28.3-28.8    53
   34.3          1
   38.0-40.3    11
   49.4          1
   51.3-51.6    47
   56.9-57.0    20
   61.9          1
   Not orbited   1
As you can see, 89% of Shuttle launches went to:

   around 28.5° to deploy satellites
   around 51.6° to reach Mir or ISS
   around 57.0° for earth observation




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