Spirit retrospective, - a few details from my current project |
Spirit retrospective, - a few details from my current project |
Jan 20 2012, 09:13 PM
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Solar System Cartographer Group: Members Posts: 10229 Joined: 5-April 05 From: Canada Member No.: 227 |
I'm working on Spirit at the moment. I will post a few examples of things as I go.
Right now the important job is updating the contemporary route map by locating the stops on HiRISE images. The existing maps at JPL, for the early part of the mission, were plotted on MOC images with inferior resolution and lighting, so I find many locations were about 15 or 20 m out. So at every site I am making circular panoramas (examples later) for comparison with HiRISE. Here's a first example, a map of the route during the Primary Mission. I have added a few extra placenames from the MER Analyst's Notebook at PDS. Phil -------------------- ... 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 PDF: 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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Feb 4 2012, 08:44 AM
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Senior Member Group: Members Posts: 2922 Joined: 14-February 06 From: Very close to the Pyrénées Mountains (France) Member No.: 682 |
Rob Manning recentely wrote about this here (i think) but I'm not able to find what he said. Anybody read this?
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Feb 4 2012, 03:29 PM
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Senior Member Group: Members Posts: 2173 Joined: 28-December 04 From: Florida, USA Member No.: 132 |
Rob Manning recentely wrote about this here... From these two posts in the same thread: Here and here."Indeed there was a lot of concern when we drove Opportunity to its heatshield after landing (at my and my team's behest). We wanted to learn more about the heatshield performance (we learned a lot!)." "Unfortunately, while the rover was near the heatshield, apparently wind picked up some particulates that got onto the rear Hazcam lenses. It may have been a coincidence and it was only Mars dust but more probably it was char from the heatshield that the wind blew onto the lenses." "In summary we concluded that the char depth of the heat shield material matched our predictions (yea!). We also learned that a piece of a mylar blanket that skirted the heat shield became a "flap" that induced some minor but very noticeable wiggles of the entry vehicle (capsule) during Opportunity's entry just before parachute deployment. The blanket was supposed to fully melt away during entry but we found that part of it did not (it was on Mars still attached to the crumpled heat shield). Its position and size matched our entry dynamic simulations for a flapping flap. Needless to say MSL does not have a blanket covering its heat shield (neither did Phoenix)." |
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