Sol 22 and after, Digging in Wonderland |
Sol 22 and after, Digging in Wonderland |
Jun 17 2008, 03:07 PM
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#1
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Solar System Cartographer Group: Members Posts: 10229 Joined: 5-April 05 From: Canada Member No.: 227 |
Here's a Sol 22 image of the new trenching area at the extreme right edge of the work area. I brightened the shadow to show the whole trench.
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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Jun 17 2008, 03:35 PM
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#2
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Forum Contributor Group: Members Posts: 1374 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11 |
Nice, I was just looking at the pictures.
I noticed they dumped a scoop full at the far end of the trench rather than somewhere else, any one have any thoughts on why ? |
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Jun 17 2008, 05:08 PM
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#3
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Member Group: Members Posts: 877 Joined: 7-March 05 From: Switzerland Member No.: 186 |
Further shots on this (additional the RGB)
http://www.greuti.ch/phoenix/of_SS022EFF_12CA8_RABC.jpg http://www.greuti.ch/phoenix/of_SS022EFF89...7_12CAEL1M1.jpg -------------------- |
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Jun 17 2008, 06:08 PM
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#4
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Senior Member Group: Members Posts: 3648 Joined: 1-October 05 From: Croatia Member No.: 523 |
My color version of the new trench. Merged two red filter images that each seemed to show less compression artifacts in sunlit/shadow portions of the image, respectively.
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Jun 17 2008, 06:10 PM
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#5
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Senior Member Group: Members Posts: 2173 Joined: 28-December 04 From: Florida, USA Member No.: 132 |
No sign of the white stuff at the same depth as on the edge of the polygon. Interesting.
Maybe one more centimeter down? |
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Jun 17 2008, 07:01 PM
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#6
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The Insider Group: Members Posts: 669 Joined: 3-May 04 Member No.: 73 |
To me, it looks like the tool has scraped across a flat hard surface...
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Jun 17 2008, 07:55 PM
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#7
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Member Group: Members Posts: 646 Joined: 23-December 05 From: Forest of Dean Member No.: 617 |
Interesting large cracks in the surface to the right of the trench; it looks like a thick surface crust breaking up into large chunks as the scoop passes nearby. Anyone know if there's telemetry from the arm indicating how much effort was needed at different points of the scoop manoeuvre? And it does appear to be the more deeply shadowed area where this happens. Fascinating stuff!
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Viva software libre! |
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Jun 17 2008, 10:18 PM
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#8
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The Poet Dude Group: Moderator Posts: 5551 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
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Jun 17 2008, 11:30 PM
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#9
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Senior Member Group: Admin Posts: 3108 Joined: 21-December 05 From: Canberra, Australia Member No.: 615 |
If you haven't seen it yet, check out the raw images page from Mark Lemmon.
Next to the Sol links, they've included a little description for the day's activities. Some of it makes very amusing reading. Well done Mark! Sol 000 Land Sol 001 Start looking around Sol 002 Runout Sol 003 Look around more, unstow RA Sol 004 Finish unstow RA Sol 005 Document Queen of Hearts Sol 006 Image RA touch, TEGA prep, workspace Sol 007 Dig! (well, test sample) Sol 008 Document TEGA, OM prep; image workspace Sol 009 Document sample site Sol 010 Runout Sol 011 Sample for TEGA Sol 012 Bury TEGA Sol 013 Find missing spring to go with found spring Sol 014 Get ready to bury MECA Sol 015 Sprinkle gently on MECA Sol 016 MRO/PHX coordinated observations Sol 017 Deliver to MECA Sol 018 Strip mine Dodo Sol 019 More digging, dislodge interesting fragment Sol 020 Continue dodo trenching, wantonly destroy fragment Sol 021 Atmosphere sol Sol 022 Open up Wonderland for exploration |
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Jun 18 2008, 04:16 AM
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#10
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Senior Member Group: Members Posts: 4256 Joined: 17-January 05 Member No.: 152 |
My color version of the new trench. This appears to be the best-defined trench yet, probably because they haven't hit the substrate yet. But the trench floor is clearly heterogeneous, with well-defined regions that are either a lighter shade or a darker shade of the ubiquitous Martian hue. Obvious speculations include grain size or compositional differences between the two types of soil. I wonder if the scoop would be agile enough to sample the lighter and darker regions separately... |
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Jun 18 2008, 06:39 AM
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#11
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Senior Member Group: Members Posts: 2173 Joined: 28-December 04 From: Florida, USA Member No.: 132 |
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Jun 18 2008, 07:55 AM
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#12
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Junior Member Group: Members Posts: 73 Joined: 25-June 07 From: United States Member No.: 2537 |
Updated in post #76
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Jun 18 2008, 09:19 AM
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#13
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Junior Member Group: Members Posts: 57 Joined: 6-September 07 From: Netherlands Member No.: 3683 |
Anyone know if there's telemetry from the arm indicating how much effort was needed at different points of the scoop manoeuvre? I haven't got the telemetry, but it's there. Every 200msecs during operation the arm reports telemetry of which only a part is:
And so the amount of joint work, and thus joint torque, can be worked out for any part of the digging operation. Actually, telemetry is returned because according to the RA team it is "... most useful for scientific analysis during digging and soil-mechanic experiments. The motor currents, along with the reconstructed arm trajectories will yield information regarding the degree of difficulty of digging in the various soils encountered..." This data will be archived in the PDS. -------------------- Error: Life.sys corrupted
( R )eflect, ( R )epend, or ( R )eboot? |
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Jun 18 2008, 09:40 AM
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#14
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Newbie Group: Members Posts: 8 Joined: 4-June 08 Member No.: 4181 |
Greetings
On this picture I can see the first layer which probably is green or denitely have a diferent colour . The same was posible to see in the first digging area but it is my opinion that the first layer is green and is wery thin . In the Meca images was also seen some green sand particles . |
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Jun 18 2008, 10:21 AM
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#15
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Senior Member Group: Members Posts: 3648 Joined: 1-October 05 From: Croatia Member No.: 523 |
I'm not convinced that's actually green. We'll have to wait for calibrated images, but my guess now would be it's an artifact of the raw images and that it's actually more grayish in color than the rest of the soil.
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