Pathfinder site, for comparison with HIRISE |
Pathfinder site, for comparison with HIRISE |
Oct 29 2006, 04:50 PM
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#1
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Solar System Cartographer Group: Members Posts: 10154 Joined: 5-April 05 From: Canada Member No.: 227 |
Presumably we will see a HIRISE image of the Pathfinder site at some point, so I am posting a polar view of the site here for comparison. I started with the Presidential Panorama. There was a slight mis-match between the ends of the pan - as if it had been slightly cropped for posting - which I can't fix, but it doesn't do too much damage to the polar view.
Phil (PS - no, I can't really spare the time for this but you know how it is) -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PD: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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Jan 13 2007, 03:28 PM
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#2
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Founder Group: Chairman Posts: 14432 Joined: 8-February 04 Member No.: 1 |
No - there really is a big bit of airbag material - with exposed foil etc - just there.
http://mars.jpl.nasa.gov/MPF/ops/81220_full.jpg See the glare it produces. See the foil here.. http://mars.jpl.nasa.gov/MPF/ops/81957_full.jpg Sojourner is never going to be obvious - it's barely at the resolving power of HiRISE and is going to be a very similar colour to the terrain...much like Spirit is today http://pancam.astro.cornell.edu/pancam_ins..._1_True_RAD.jpg What we DO see with the HiRISE images is some rocks that appear where we expect them to - and then one about Sojourner that is where we don't expect one, in a place where it's entirely possible Sojourner could have driven to. The sequence was never onboard to actually circle the lander ( as I used to think ) but infact to return to the lander but simulatanious remain outside a keep-out zone. She would probably (given enough time ) have tried to go around the lander anti-clockwise as a result of that. However - she wouldn't have got too close to the lander as the lasers would/should have stopped that happening. There's no OBVIOUS sign of Sojourner - but that object that does look out of place - and in a spot that is easy to imagine Sojourner getting to - it's the only real candidate if the old girl stayed 'local' Doug |
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Guest_jumpjack_* |
Jan 14 2007, 04:55 PM
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#3
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Guests |
Sojourner is never going to be obvious - it's barely at the resolving power of HiRISE and is going to be a very similar colour to the terrain...much like Spirit is today http://pancam.astro.cornell.edu/pancam_ins..._1_True_RAD.jpg there are several things I can't understand: - why aren't Spirit and Opportunity experiencing same dusty-doom of MPF? (or vice-versa) Isn't MPF landing site not windy at all? - are currently Spirit panels in such a condition of the linked image??? - If NASA knew dust would at last stopped solar panels from working, why didn't they design movable solar panels, which can be folded in the original position and the unfolded again? This wuould have easily removed dust from panels surface! And, where can I find an annotated image of MPF landing site? |
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Jan 14 2007, 06:03 PM
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#4
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Interplanetary Dumpster Diver Group: Admin Posts: 4404 Joined: 17-February 04 From: Powell, TN Member No.: 33 |
Pathfinder was killed by battery failure. They tried to get it to run directly off the solar panels (rather than from the solar panels to the battery), so that it could at least work during the day, but it didn't work. When Viking 2 died, it was similar - in this case, the RTG was still putting out power, but the battery failed. Power went from the RTG to the battery to the spacecraft, and attempts to run directly off the RTG failed. If you look at pathfinder's pictures of the solar panels taken just before it failed, they still look clean. BTW, that pan has some labels, although some features, like mini-matterhorn, located at the rightmost part of the pan, next to the edge of the airbag, are not listed.
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