Mobility reports, Making maps |
Mobility reports, Making maps |
Apr 6 2006, 03:56 PM
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#1
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Founder Group: Chairman Posts: 14432 Joined: 8-February 04 Member No.: 1 |
This one's for those with bandwith and a penchent for data only
http://anserver1.eprsl.wustl.edu/anteam/merb/merb.htm Great data sets - but I just grab the course.png which shows the path of the vehicle on that days drive - great NOW - here's the problem - they're not matching up properly...i.e. I've been tracing the route around the edge of Endurance, and Sol 129 I should be right next to tracks from about 20 sols before when the rover headed out the other way. Somewhere, they've got out of line with one another. Are all sites defined with X, Y and Z being in the same direction - or does a new site define a new set of axis for motion thereafter - and what am I missing to fall short of having these things match up. I don't THINK it's slipage etc - but perhaps it is. I don't know Doug |
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Apr 6 2006, 04:38 PM
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#2
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Chief Assistant Group: Admin Posts: 1409 Joined: 5-January 05 From: Ierapetra, Greece Member No.: 136 |
I think there is a 'local coordinate system' for every new site. could be wrong though.
Nico -------------------- photographer, space imagery enthusiast, proud father and partner, and geek.
http://500px.com/sacred-photons & |
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Apr 6 2006, 04:57 PM
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#3
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Member Group: Members Posts: 267 Joined: 5-February 06 Member No.: 675 |
This one's for those with bandwith and a penchent for data only http://anserver1.eprsl.wustl.edu/anteam/merb/merb.htm Great data sets - but I just grab the course.png which shows the path of the vehicle on that days drive - great There seem to be several steps between the link you gave and the course.png files you mentioned. Could you give some help for navigating around the site to those files? QUOTE NOW - here's the problem - they're not matching up properly...i.e. I've been tracing the route around the edge of Endurance, and Sol 129 I should be right next to tracks from about 20 sols before when the rover headed out the other way. Somewhere, they've got out of line with one another.... Doug The positions on the Traverse Maps on the Analyst's Notebook "are taken from Rover Vector Files and have not been corrected for wheel slip." I suspect that other position data at the PDS may suffer from the similar problem, which would account for your problem. I couldn't find the bundle adjusted Rover positions from Li's team at Ohio State anywhere in the PDS -- of course since they originally planned to do a new complete bundle adjustment every few days, they may be holding off until they can pull it all together, yet interim reports would be helpful. |
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Apr 8 2006, 05:14 PM
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#4
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Solar System Cartographer Group: Members Posts: 10150 Joined: 5-April 05 From: Canada Member No.: 227 |
Doug, I'm replying to a question from you about the digital scale of my Endurance mosaic - couldn't find the original question. I didn't make it at a specific scale, but of course it can be resampled to a specific m/pixel scale as needed. I think the area covered is about 200 m across. I can't go back into it yet to do anything specific - too busy.
Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke 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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