Exploring Mt Sharp north of the dunes - Part 1: Beyond Pahrump Hills, Site 45-50, Sol 923-1147, March 12-October 28, 2015 |
Exploring Mt Sharp north of the dunes - Part 1: Beyond Pahrump Hills, Site 45-50, Sol 923-1147, March 12-October 28, 2015 |
Mar 12 2015, 08:38 PM
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#1
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Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
Finally drove away from Pahrump Hills on sol 923. Wheel tracks sure are piling up at the end of the drive -- there seems to have been quite a bit of slip.
[admin note: I was going to start a new thread for this, but realized our thread naming may be a bit out of whack because we're really not journeying to Mt Sharp anymore, are we? We'll discuss it with admins and I'll move/rename posts when we figure out our naming schema.] -------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
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Mar 14 2015, 11:29 PM
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#2
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Senior Member Group: Members Posts: 2428 Joined: 30-January 13 From: Penang, Malaysia. Member No.: 6853 |
...sol 923 Wheel tracks sure are piling up at the end of the drive -- there seems to have been quite a bit of slip. I believe that Joe's drive log derives drive distance on wheel rotation data. If that is still the case, then we also appear to have had significant wheel slip during the sol 924 drive. JPL issued a point to point distance of 6.13 meters, Joe's page indicates >20m, this could be corruption in the NAIF data, or slip. The rear pointing NavCam images of the drive on 624 are only down as thumbnails so far, but the wheel track in one of those thumbs looks similar to the deep tracks on the 923 drive. Joe's speed plot for that drive has some really interesting sharp fluctuations in elevation that don't seem to reflect the path, could this be recording the wheels digging in a little until forward progress was made? |
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