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Philae landing on the nucleus of Comet 67P C-G
polaris
post Nov 13 2014, 10:28 AM
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QUOTE (climber @ Nov 13 2014, 11:21 AM) *
Plus one of the Concert antena is on the ground.
I hope I'm wrong

I agree. The Concert antena is in contact with the soil. It can be checked with its shadow...
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spacepoint
post Nov 13 2014, 10:30 AM
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I think Philae is tilted toward front leg. These antennas are left and right from that leg.
I dont think that's 90 degress, but close. sad.gif
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Paolo
post Nov 13 2014, 10:32 AM
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Emily has tweeted this a few minutes ago:

QUOTE
Mark McCaughrean says we have 7 CIVA images on the ground and one of them is looking at sky. Means Philae is at least sloping, poss. on side
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xflare
post Nov 13 2014, 10:37 AM
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It looks very gravelly/crumbly.
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OWW
post Nov 13 2014, 10:40 AM
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It looks nothing like that last image before touchdown though. It must have come down somewhere else entirely.
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climber
post Nov 13 2014, 10:45 AM
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QUOTE (spacepoint @ Nov 13 2014, 11:30 AM) *
I think Philae is tilted toward front leg. These antennas are left and right from that leg.
I dont think that's 90 degress, but close. sad.gif

Agree. Trouble is we've lost on side of solar panel i.e. we'll need more time to recharge batteries.


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climber
post Nov 13 2014, 10:51 AM
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Drilling would also be not possible.
Well, better wait for the conférence


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christian_d
post Nov 13 2014, 10:53 AM
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Do you think that rotating the platform will be safe? If the lander is sitting there so precariously, this could be enough to tip it over, or incur damage due to contact with the ground? Does the preprogrammed science sequence rotate the platform autonomously at this stage? May it be possible to torque-right the lander with fast platform movements?
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Rakhir
post Nov 13 2014, 10:54 AM
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The platform rotation is not preprogrammed.
They will decide to do it or not depending on the situation.
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polaris
post Nov 13 2014, 10:57 AM
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Due to the very low gravity, could it be possible to straighten Philae using the internal engines of the instruments...?
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Paolo
post Nov 13 2014, 11:02 AM
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Jonathan Amos has just tweeted that Philae might not be in a place where it can recharge its batteries
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jamescanvin
post Nov 13 2014, 11:02 AM
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The current position does not look ideal from a power perspective. Hopefully rotation will still be possible to orientate the panels better.


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elakdawalla
post Nov 13 2014, 11:04 AM
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When rovers were stuck, a frequently asked question was whether the arms could help them get out of the mess, and the answer was always absolutely not. But I have heard reasonable people here speculating that if Philae ended up on its side, the MUPUS probe could possibly be used to try to right it, depending on the orientation of the lander of course. There's still a lot of confusion about the lander's position and orientation here; they're scrambling to try to figure things out before this afternoon's briefing.


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christian_d
post Nov 13 2014, 11:04 AM
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QUOTE (polaris @ Nov 13 2014, 11:57 AM) *
Due to the very low gravity, could it be possible to straighten Philae using the internal engines of the instruments...?


Unfortunately, microgravity doesn't reduce the inertia of the lander, it is still a 100kg object.
If it is just beyond the tipping point though, a little yank might just do something.
Probably this is wishful thinking, though.
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spacepoint
post Nov 13 2014, 11:08 AM
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Too bad that thruster failed during descend. sad.gif
http://youtu.be/-77-Z_DHTlY?t=3m13s
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