The West Valley Route |
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The West Valley Route |
 Mar 23 2009, 02:29 PM
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#31
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 Senior Member  Group: Moderator Posts: 2262 Joined: 9-February 04 From: Melbourne - Oz Member No.: 16  |
QUOTE (ustrax @ Mar 23 2009, 01:46 PM)  Indeed a beauty James! Have a doubt here, visiting your site, you make reference to Thera crater...I must be missing something here but aren't we looking in the opposite direction of it?  Yes your right - I was confused and in a hurry. Need more sleep... Thanks for the complement and correction. James EDIT: Am I right in thinking that it is in fact, Grissom Hill? -------------------- |
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Mar 23 2009, 03:01 PM
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#32
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 Special Cookie Group: Members Posts: 2168 Joined: 6-April 05 From: Sintra | Portugal Member No.: 228 |
Yes, you're right, that's Grissom and I must have entered in another dimension...one where ustrax corrects James...
-------------------- "Ride, boldly ride," The shade replied, "If you seek for Eldorado!"
Edgar Alan Poe |
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Mar 23 2009, 10:01 PM
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#33
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Member Group: Members Posts: 384 Joined: 4-January 07 Member No.: 1555 |
QUOTE (Stu @ Mar 22 2009, 10:25 AM) Whoah... that's one seriously interesting rock Spirit was just looking at... Agreed. From that single image, it appears to have rock inclusions as well as numerous holes (vesicles) in it. I wonder if it might represent an ejected chunk of highly vesicular impact melt, rather than of lava. Hard to say... -- HDP Don |
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Mar 23 2009, 10:19 PM
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#34
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 Senior Member Group: Members Posts: 2918 Joined: 14-February 06 From: Very close to the Pyrénées Mountains (France) Member No.: 682 |
If I read Eduardo's route map correctly we're about 5 meters north from Sol 767 drive trajectory.
I cannot see any weels marks  
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Mar 23 2009, 11:24 PM
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#35
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 Member Group: Members Posts: 691 Joined: 21-December 07 From: Clatskanie, Oregon Member No.: 3988 |
QUOTE (climber @ Mar 23 2009, 02:19 PM) If I read Eduardo's route map correctly we're about 5 meters north from Sol 767 drive trajectory. I cannot see any weels marks It looks like Mars does not like her surface disturbed, WARNING: SHE WILL ERASE!!!   .
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Mar 24 2009, 12:18 AM
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#36
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 Senior Member Group: Members Posts: 3419 Joined: 9-February 04 From: Minneapolis, MN, USA Member No.: 15 |
QUOTE (dburt @ Mar 23 2009, 04:01 PM) Agreed. From that single image, it appears to have rock inclusions as well as numerous holes (vesicles) in it. I wonder if it might represent an ejected chunk of highly vesicular impact melt, rather than of lava. Hard to say... Especially since it has rather obvious layering, which happens to lie parallel to the ground right now. Likely a serendipitous attitude. The holes could be vesicles, or they could be remnants of inclusions that have either fallen out of the matrix or eroded out of it. The matrix is so highly eroded, especially in planes around its structural layering, that it's not easy to tell. Looking at the rock in the anaglyph, I dearly want to turn it on its side and look into the crevices, to see the actual thickness of the layering and to try and see if there is any constructional relationship (i.e., alternating hard and soft layers) that would account for the rather obvious layer peel-aways. -the other Doug -------------------- “The trouble ain't that there is too many fools, but that the lightning ain't distributed right.” -Mark Twain
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Mar 24 2009, 12:24 AM
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#37
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Senior Member Group: Members Posts: 3419 Joined: 9-February 04 From: Minneapolis, MN, USA Member No.: 15 |
QUOTE (James Sorenson @ Mar 23 2009, 05:24 PM) It looks like Mars does not like her surface disturbed, WARNING: SHE WILL ERASE!!! . I have to say, I'm surprised that any of the tracks from either MER are still obvious, after that global dust storm they endured. I think it says a lot about the deposition mechanisms that some tracks have been erased, some partially erased, and some hardly erased at all. And that while some seem to have been swept clean, others are fully or partially buried. There are obviously dust traps and dust scourers set up in the ground-level microclimate by the landforms and such; I wish we understood them well enough to be able to maneuver poor Spirit into a scouring location, ASAP! -the other Doug -------------------- “The trouble ain't that there is too many fools, but that the lightning ain't distributed right.” -Mark Twain
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Mar 24 2009, 06:33 AM
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#38
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Senior Member Group: Moderator Posts: 4279 Joined: 19-April 05 From: .br at .es Member No.: 253 |
Its not the first time we address this topic about the lost tracks. While making my latest mosaic on this thread I was looking for that same old path too without luck.
Right about the NW corner we should (well... I hope) see some older wheel marks from when she was investigating HP for the very first time. |
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Mar 24 2009, 10:07 AM
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#39
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Senior Member Group: Moderator Posts: 4279 Joined: 19-April 05 From: .br at .es Member No.: 253 |
We are approaching the NW corner! Have a look to the latest mosaic made with today's navcam pictures (sol 1856).
BTW, a quick check to the rover's data tells us Spirit moved 21m! What a difference, if we compare with the (frustrating) attempts by the NE. |
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Mar 24 2009, 10:28 AM
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#40
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Senior Member Group: Moderator Posts: 2262 Joined: 9-February 04 From: Melbourne - Oz Member No.: 16 |
Nice.
 I think I'm right in thinking that the two large dark rocks on the 'corner' of HP from this viewpoint are those at 'Gibson' where Spirit first arrived on sol 746/8. EDIT: here is an old mosaic of mine from back then, showing the rocks I'm talking about. 
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Mar 24 2009, 11:20 AM
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#41
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Special Cookie Group: Members Posts: 2168 Joined: 6-April 05 From: Sintra | Portugal Member No.: 228 |
QUOTE (Tesheiner @ Mar 24 2009, 10:07 AM) BTW, a quick check to the rover's data tells us Spirit moved 21m! What a difference, if we compare with the (frustrating) attempts by the NE. 13+21 not bad for a "crippled" rover... That's our girl!
-------------------- "Ride, boldly ride," The shade replied, "If you seek for Eldorado!"
Edgar Alan Poe |
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Mar 24 2009, 12:49 PM
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#42
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Forum Contributor Group: Members Posts: 1372 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11 |
Can we have a route map update ?
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Mar 24 2009, 12:57 PM
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#43
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Senior Member Group: Moderator Posts: 4279 Joined: 19-April 05 From: .br at .es Member No.: 253 |
Take it easy! It's lunch time here in Spain.
Done. QUOTE (MahFL @ Mar 23 2009, 03:24 PM) 20 more drives like that and she'll be there......no problems. Not so fast. This is the easy part mainly because we're driving downslope. If you have a look to the further route to Von Braun with Google Mars, the terrain becomes more complicated. It would be great to see these 10+ or 20+ in the future but I'm not so confident. |
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Mar 24 2009, 01:34 PM
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#44
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 Member Group: Admin Posts: 976 Joined: 29-September 06 From: Pasadena, CA - USA Member No.: 1200 |
QUOTE (Tesheiner @ Mar 24 2009, 03:07 AM) ... BTW, a quick check to the rover's data tells us Spirit moved 21m! What a difference, if we compare with the (frustrating) attempts by the NE. Actually the data I have tells me 25.8m. A new record for driving with 5 wheels. 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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Mar 24 2009, 02:18 PM
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#45
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Junior Member Group: Members Posts: 90 Joined: 23-February 09 From: Edmonton, Alberta Member No.: 4611 |
With these great long drags, is there any concern that we'll start wearing through the stuck wheel? I assume the aluminum is anodized and that would certainly help with abrasion resistance, but only to a point.
Probably not in the short term so I guess that's probably something to worry about for next year when we head for the rim of Gusev
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