Opportunity Route Map |
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Opportunity Route Map |
 Sep 12 2005, 06:59 PM
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#661
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Junior Member  Group: Members Posts: 63 Joined: 4-May 05 Member No.: 378  |
QUOTE (stevo @ Sep 9 2005, 06:32 PM) According to Dilo's superb route map, a 25m drive east is going to cut across 5 or 6 dunes. Even if they're only little ones that's bold enough for me at the moment   It appears I under-rated Oppy's cross-country abilities, she crossed 7 (8?) dunes with ease. http://qt.exploratorium.edu/mars/opportuni...00P1920L0M1.JPG Although from the look of this image, there's enough outcrop here for the geologists to keep her "stuck" here for a while yet anyway . http://qt.exploratorium.edu/mars/opportuni...00P1920L0M1.JPG -------------------- Popper: A party entertainment, filled with confetti and a small explosive charge.
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Sep 12 2005, 07:28 PM
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#662
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Member Group: Members Posts: 877 Joined: 7-March 05 From: Switzerland Member No.: 186 |
http://qt.exploratorium.edu/mars/opportuni...00P1920L0M1.JPG
Err I or are there also some (much) smaller dunes around the Highway? I'm not afraid of getting "stuck" Probably all common matter in the vicinity.
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Sep 12 2005, 07:39 PM
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#663
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 Junior Member Group: Members Posts: 90 Joined: 20-April 05 Member No.: 289 |
QUOTE (stevo @ Sep 12 2005, 02:59 PM) Although from the look of this image, there's enough outcrop here for the geologists to keep her "stuck" here for a while yet anyway . http://qt.exploratorium.edu/mars/opportuni...00P1920L0M1.JPG Not to mention the giant "2001 Style" Obelisk in the middle of the highway 
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Sep 12 2005, 07:46 PM
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#664
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Junior Member Group: Members Posts: 63 Joined: 4-May 05 Member No.: 378 |
QUOTE (maycm @ Sep 12 2005, 02:39 PM) Not to mention the giant "2001 Style" Obelisk in the middle of the highway Yes, you'll notice that in images every now and then. I think it's following us  And I was counting every vaguely up or down ripple as a dune. It gives a bigger number and that's always better. -------------------- Popper: A party entertainment, filled with confetti and a small explosive charge.
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Sep 12 2005, 10:38 PM
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#665
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Senior Member Group: Members Posts: 2998 Joined: 30-October 04 Member No.: 105 |
The dunes in today's cross-country jog were quite small and consolidated. Look at Dilo's 9 Sept route map and you can see that the dunes she turned away from on Sol 569 were large and steep. Good move on the Rover Drover's part.
--Bill -------------------- |
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Sep 13 2005, 12:36 AM
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#666
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 Senior Member Group: Members Posts: 2492 Joined: 15-January 05 From: center Italy Member No.: 150 |
QUOTE (dilo @ Sep 11 2005, 05:09 PM) This is also the David hypothesys, and appear reasonable but.. I tend to think that is mainly a dune-hidding perspective issue, based on changes visible in the projections as Rover moves around. As a confirm of the "dune-masking" explaination, herebelow a comparison between vertical projection of Sol578 and 580.. last projection is very different and now correspondances with Erebus Highway features seen from orbit are quite impressive!  So the outcrops structure didn't change very much from satellite image capture and major discrepancies are visible only far from N-S direction, as expected because this is prevailing dunes orientation, so the less disturbed view... Herebelow updated routemap.. it was very difficult to overlap Sol580 with previous ones, due to the longer distance covered in last two days.. so if someone find best match, suggestions are welcome! 
-------------------- I always think before posting! - Marco -
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Sep 13 2005, 01:02 AM
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#667
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Member Group: Members Posts: 477 Joined: 2-March 05 Member No.: 180 |
QUOTE (Tman @ Sep 12 2005, 02:28 PM) http://qt.exploratorium.edu/mars/opportuni...00P1920L0M1.JPG Err I or are there also some (much) smaller dunes around the Highway? I'm not afraid of getting "stuck" Probably all common matter in the vicinity.Geez, just track the dirt all over the nice clean rocks, why don't ya.  
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Sep 13 2005, 01:04 AM
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#668
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 Member Group: Members Posts: 809 Joined: 11-March 04 Member No.: 56 |
QUOTE (dilo @ Sep 13 2005, 12:36 AM) As a confirm of the "dune-masking" explaination, herebelow a comparison between vertical projection of Sol578 and 580.. last projection is very different and now correspondances with Erebus Highway features seen from orbit are quite impressive! The two areas that concerned me are dune deposits within the Highway, and which don't show up (or only sketchily so) in the orbital imagery -- those are immediately to the north and south of the Sol 580 position. I guess the differences can be put down to low resolution on the satellite image, which unfortunately gave me the impression of a single, solid ribbon of outcrop. I also got the impression that there was a large exposed "floor" immediately south of the "Highway", but now it seems that all of these areas are cut through by sand dunes. |
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Sep 13 2005, 01:26 AM
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#669
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Senior Member Group: Members Posts: 2492 Joined: 15-January 05 From: center Italy Member No.: 150 |
QUOTE (David @ Sep 13 2005, 01:04 AM) The two areas that concerned me are dune deposits within the Highway, and which don't show up (or only sketchily so) in the orbital imagery -- those are immediately to the north and south of the Sol 580 position. David, if the discontinuites you're talking about are these highlighted below, my opinion is they should be too small to appear in the MGS image.  And about southern covered outcrops, they are probably too far for the moment... (even a small dune can cause misinterpretation)... let's see in the next Sol! -------------------- I always think before posting! - Marco -
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Sep 13 2005, 06:53 AM
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#670
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 Senior Member Group: Members Posts: 3419 Joined: 9-February 04 From: Minneapolis, MN, USA Member No.: 15 |
Just a nomenclature issue, here...
While we all tend to call the windforms here at Meridiani "dunes," they're not really dunes. "Dune" specifies a given overall size (much larger than these) and particle size (usually much coarser particles, such as sand, than these things are made of). These have also been called "ripples," which is more of a descriptive term than a geological term. One guy on the MER team (I don't remember his name) has said that the most appropriate term for these landforms is "drifts." The form size and particle size are more similar to terrestrial snowdrifts than just about anything else. Also, the formation dynamics seem more akin to drifting than to duning. I'm just as guilty of referring to them as dunes as anyone else. But from now on, I'm going to make an effort to refer to them as drifts. -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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Sep 13 2005, 09:07 AM
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#671
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Senior Member Group: Moderator Posts: 4279 Joined: 19-April 05 From: .br at .es Member No.: 253 |
QUOTE (DaveM @ Sep 9 2005, 10:16 PM) Opportunity is scheduled to do a roughly 25 m drive almost due east tomorrow (Sol 580), and then start heading due south again next week. Ah, to be a fly-on-the-wall at every Activity Plan Approval Meeting...  Oppy was expected to drive today (sol 582), and actually most of the images are reported to be "on the ground" (as of 09:00 UTC). Let's hope the exploratorium (or whatever is in the chain) doesn't suffer hiccups again.
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Sep 13 2005, 10:32 AM
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#672
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 Special Cookie Group: Members Posts: 2168 Joined: 6-April 05 From: Sintra | Portugal Member No.: 228 |
My eyes are constatly wide-opening for the incredible work done here...
-------------------- "Ride, boldly ride," The shade replied, "If you seek for Eldorado!"
Edgar Alan Poe |
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Sep 13 2005, 02:48 PM
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#673
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 Member Group: Members Posts: 531 Joined: 24-August 05 Member No.: 471 |
Thanks for the new overviews, dilo!
Sol 580 update: 
-------------------- - blue_scape / Nico -
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Sep 13 2005, 03:20 PM
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#674
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Senior Member Group: Moderator Posts: 4279 Joined: 19-April 05 From: .br at .es Member No.: 253 |
SigurRosFan,
I think you will have to enlarge the background map quite soon. 
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Sep 13 2005, 04:22 PM
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#675
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 Member Group: Members Posts: 257 Joined: 18-December 04 Member No.: 123 |
dilo, Your top view route maps are truly excellent.
Can't wait for the day when we have a MMB like 3d environment and we can just string them all together and follow the entire trek from January 2004 to to the end. That'd be cool. I mean it WILL be cool.Someones gonna do it
-------------------- Turn the middle side topwise....TOPWISE!!
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