HiRISE and Mars Polar Lander |
HiRISE and Mars Polar Lander |
Guest_Sunspot_* |
Dec 6 2006, 02:05 PM
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#1
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Guests |
Looking at the images of the Spirit/Opportunity landing site, it seems many of the features such as tracks and rocket blast markings have faded considerably often to the point of being invisible in the nearly three years since landing.
This had me thinking about the MGS images taken in the hope of finding MPL. Initially it was reported that MGS had spotted the lander, one image had a white spot/streak interpreted as the parachute and a dark patch with a spot in the centre not too far off, taken to be the blast zone of the rockets with the lander in the centre. However another image taken 5 years later seemed to discount this theory - the features had faded or changed significantly. BUT, seeing how much the rover sites have changed in an even shorter time, wouldn't the same happen to the MPL site in 5 years - perhaps to an even greater degree with the more extreme seasonal changes at that location. Also, the latest HiRISE images show just how difficult it has been to spot the landers on the surface with MGS, the Viking sites in particular. I hope HiRISE takes another look at this spot. Mars Polar Lander NOT Found, MSSS article: http://www.msss.com/mars_images/moc/2005/10/17/ |
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May 13 2008, 01:36 AM
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Merciless Robot Group: Admin Posts: 8785 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
I like C!
I dunno, man, just don't know. They look more compelling to me than other purported finds...in fact, the "lander" almost looks like it made a successful descent. That topography is just a mess, though, and definitely promotes the Rorschach Effect. We might need to send a cam with 1 cm resolution to find the damn thing in this stuff. Guess there's still a possibility we might get super-lucky and catch a specular reflection if there's some reasonably bare metal exposed & the geometry happens to be right. -------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
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May 13 2008, 11:08 AM
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#3
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Senior Member Group: Members Posts: 3648 Joined: 1-October 05 From: Croatia Member No.: 523 |
Neglecting the feasibility of actually acquiring that dataset, can you imagine what an effort it would be to inspect the entire landing ellipse at 1cm resolution? We're talking about a 600 times larger pixel area than even this (already huge) amount. That would undoubtedly require a computer pattern recognition algorithm, no human would venture into sifting through that systematically. All the more because we don't even know what we're looking for - deployed chutes, broken heat shields or just a single crater. It's not that easy to tell a computer "find everything out of the ordinary!" either.
I wonder what effects to metal surfaces (or parachute) a 9 year exposure to this environment would produce. Are we even sure this sublimation and frosting process didn't already bury all hardware or at least coat it with a thin layer of dust and rendered it part of that environment? Additionally, how does albedo in this region compare to equatorial sites, are we expecting metal surfaces and the parachute to jump out or is the terrain here much brighter (apart from certain very dark areas)? So many unknowns... -------------------- |
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May 13 2008, 12:48 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 |
I am choosing to ignore this thread until Phoenix is safely on the ground
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