The Top of Vera Rubin Ridge Part 1, Site 66-67, sol 1812-1943, 11 Sep 2017-23 Jan 2018 |
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The Top of Vera Rubin Ridge Part 1, Site 66-67, sol 1812-1943, 11 Sep 2017-23 Jan 2018 |
 Dec 9 2017, 03:31 AM
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#211
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Member  Group: Members Posts: 122 Joined: 19-June 07 Member No.: 2455  |
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Dec 9 2017, 03:05 PM
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#212
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 Member Group: Admin Posts: 976 Joined: 29-September 06 From: Pasadena, CA - USA Member No.: 1200 |
QUOTE (elakdawalla @ Dec 8 2017, 11:54 AM)  One way to do that would be if the track were not straight but actually had a constant curvature bent slightly to the rover's right. .... Bingo! Looking at the drive telemetry, the rover was curving to the right in order to keep heading for the waypoint we had set. There was no crabbing (difference between rover heading and rover yaw (*)) but a slight arc to the right. As you can clearly see on the NAVCAM mosaic, there's a slight cross-slope terrain we were driving over. Had the vehicle crabbed you would have seen the effects on the tracks with distorted cleat marks. Paolo (*) heading=direction of motion of the vehicle yaw=direction where the vehicle is pointed towards -------------------- Disclaimer: all opinions, ideas and information included here are my own,and should not be intended to represent opinion or policy of my employer.
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Dec 11 2017, 11:25 PM
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#213
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 Senior Member Group: Members Posts: 2425 Joined: 30-January 13 From: Penang, Malaysia. Member No.: 6853 |
1901, very roughly assembled in MS ICE, but should suffice until a better version is posted...
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Dec 12 2017, 12:40 PM
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#214
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 Senior Member Group: Members Posts: 1619 Joined: 12-February 06 From: Bergerac - FR Member No.: 678 |
Yes Paul, I'm here now
 This Sol 1901 Navcam panoramic : 
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Dec 12 2017, 01:21 PM
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#215
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Senior Member Group: Members Posts: 2425 Joined: 30-January 13 From: Penang, Malaysia. Member No.: 6853 |
Expertly crafted Damia, many thanks
MS ICE has its good days, but only rarely with NavCams. I really enjoyed your version, not just for the quality of the blending and the stitching, but with this increase in elevation we are getting to see a little more the distant detail at the base the rim walls, such as slumping material and hints the alluvial fans that washed material into the crater. Imagine what those would look like in a MAHLI 'selfie' at the next drill site? (fingers crossed) QUOTE (Ant103 @ Dec 12 2017, 08:40 PM) Yes Paul, I'm here now |
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Dec 12 2017, 06:17 PM
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#216
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Solar System Cartographer Group: Members Posts: 10146 Joined: 5-April 05 From: Canada Member No.: 227 |
A nice new panorama - thanks, Damia. Here is a circular projection of it. We are parked just north of a little step in the topography. (note that a rise near the rover is greatly magnified by the reprojection geometry here - I could re-do this with that taken into account but I don't usually bother)
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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Dec 13 2017, 08:42 AM
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#217
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Senior Member Group: Members Posts: 1043 Joined: 17-February 09 Member No.: 4605 |
Sol 1901. Sphere, hemisphere, concretion or something else?
Attached thumbnail(s)
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Dec 13 2017, 03:06 PM
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#218
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Senior Member Group: Members Posts: 2346 Joined: 7-December 12 Member No.: 6780 |
A spherical tektite?
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Dec 14 2017, 05:29 AM
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#219
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 Merciless Robot Group: Admin Posts: 8783 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
Looks very similar to some of the larger concretions at Meridiani.
-------------------- 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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Dec 14 2017, 03:43 PM
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#220
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 Senior Member Group: Members Posts: 4246 Joined: 17-January 05 Member No.: 152 |
Navcam gives a diameter of around 5 or 6 mm. That is indeed at the large end of the Meridiani blueberry size distribution.
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Dec 15 2017, 05:47 AM
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#221
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Senior Member Group: Members Posts: 1043 Joined: 17-February 09 Member No.: 4605 |
It is a lonely little critter so regardless of provenance, transportation was probably involved.
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Dec 16 2017, 12:52 AM
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#222
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 Member Group: Members Posts: 684 Joined: 24-July 15 Member No.: 7619 |
QUOTE (serpens @ Dec 13 2017, 09:42 AM) Sol 1901. Sphere, hemisphere, concretion or something else? Well, until the drill is working, guess ya drive over it, see if it breaks open... Hmm, "note to self about next rover, include a nut-cracker mechanism to obtain cross sections..." |
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Dec 16 2017, 01:28 AM
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#223
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Member Group: Admin Posts: 976 Joined: 29-September 06 From: Pasadena, CA - USA Member No.: 1200 |
QUOTE (HSchirmer @ Dec 15 2017, 04:52 PM) ... Hmm, "note to self about next rover, include a nut-cracker mechanism to obtain cross sections..." Done that. She's called Opportunity. See rock "pork chop" and "jelly doughnut" around Sol 3400? (Feb 4 2014). Paolo -------------------- Disclaimer: all opinions, ideas and information included here are my own,and should not be intended to represent opinion or policy of my employer.
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Dec 16 2017, 04:00 AM
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#224
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Senior Member Group: Members Posts: 2425 Joined: 30-January 13 From: Penang, Malaysia. Member No.: 6853 |
Drive on 1905: Roughly assembled L-NavCam pan in MS ICE, may help pin down the new location until a proper version can be assembled and posted. Some nice terrain just in front of the rover
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Dec 16 2017, 07:45 AM
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#225
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Solar System Cartographer Group: Members Posts: 10146 Joined: 5-April 05 From: Canada Member No.: 227 |
Thanks, Paul, it does help. Here's a circular version of it.
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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