Rosetta - Post Separation Ops at Comet 67P C-G, November 14, 2014 - |
Rosetta - Post Separation Ops at Comet 67P C-G, November 14, 2014 - |
Nov 14 2014, 05:17 AM
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Senior Member Group: Members Posts: 2106 Joined: 13-February 10 From: Ontario Member No.: 5221 |
I think I heard it mentioned during the press conference today, (I can't find it now), about Rosetta itself possibly landing eventually, similar to what NEAR did at the end of the main mission at Eros? Since it's not like there's anywhere else to go with the remaining delta-v left by the end of 2015, and sunlight levels and activity starting to drop after perihelion, and the low gravity makes the difference between orbiting and 'landing' trivial. The whole thing would weigh a kilo or two, right?
Obviously there's a few more pressing concerns right now, but it's something to eventually think about. |
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Jan 20 2015, 07:14 PM
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Member Group: Members Posts: 153 Joined: 20-December 14 From: Eastbourne, UK Member No.: 7372 |
I was wondering if interaction between the jets and the material of the inner comma may, by friction or ion interactions, tend to curve the tops of the jets as they are, initially anyway, tied to the rotation of the nucleus. The OSIRIS image from 22nd Nov seems to show some curving of the jets further from the nucleus. The very low densities involved would tend to make me think these effects would be rather small. The velocity of inner coma material relative to the surface would need to be known, Rosetta does have instruments to determine that, though.
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