Post Block Island Meteor Studies (The Western Route), The 6th Leg in our Zig Zag Journey to Endeavour Crater |
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Post Block Island Meteor Studies (The Western Route), The 6th Leg in our Zig Zag Journey to Endeavour Crater |
| Guest_Sunspot_* |
 Nov 5 2009, 08:57 PM
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#556
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Guests  |
WOW
http://qt.exploratorium.edu/mars/opportuni...H1P1978L0M1.JPG I guess thats where the slip and aborted drive occurred. |
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Nov 5 2009, 09:15 PM
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#557
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 Senior Member  Group: Members Posts: 4247 Joined: 17-January 05 Member No.: 152 |
Marquette area in stereo:
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Nov 5 2009, 09:31 PM
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#558
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Founder Group: Chairman Posts: 14432 Joined: 8-February 04 Member No.: 1 |
Might just be me - but it looks like they stopped mid-drive for imaging, then carried on?
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Nov 5 2009, 09:37 PM
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#559
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 Senior Member Group: Members Posts: 3516 Joined: 4-November 05 From: North Wales Member No.: 542 |
That's what I was hoping.
EDIT - and fredk posted the image in post 555. Keeping up the McCartney theme I'd like to suggest a title for that image: 'Ebony and Ivory'. |
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Nov 5 2009, 10:07 PM
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#560
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 The Poet Dude Group: Moderator Posts: 5551 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
Oooh...!!
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Nov 5 2009, 11:04 PM
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#561
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 Special Cookie Group: Members Posts: 2168 Joined: 6-April 05 From: Sintra | Portugal Member No.: 228 |
QUOTE (fredk @ Nov 5 2009, 09:15 PM)  Marquette area in stereo: Caramba! That is an amazing shot! Look at the height of those dunes behind the monolith... Is it my impression or Marquette looks quite different from the other islands? Younger stuff? EDITED:  
-------------------- "Ride, boldly ride," The shade replied, "If you seek for Eldorado!"
Edgar Alan Poe |
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Nov 5 2009, 11:30 PM
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#562
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 Senior Member Group: Members Posts: 2173 Joined: 28-December 04 From: Florida, USA Member No.: 132 |
In this version by hortonheardawho, it looks layered to me and so possibly not a meteorite at all. Too early to tell?
http://www.flickr.com/photos/hortonheardawho/4078399195/ |
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Nov 5 2009, 11:30 PM
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#563
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The Poet Dude Group: Moderator Posts: 5551 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
Hmmm... my meteorite antennae aren't twitching much... this looks more like a great chunk of ejecta from a crater than it does a meteorite...
Guess we'll have to wait and see! -------------------- |
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Nov 6 2009, 12:04 AM
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#564
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Member Group: Members Posts: 507 Joined: 10-September 08 Member No.: 4338 |
It looks top-heavy. Why doesn't it fall over? Buried base?
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Nov 6 2009, 12:17 AM
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#565
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 Merciless Robot Group: Admin Posts: 8784 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
This will sound weird, but a large rock in these parts that isn't a meteorite might be kind of an interesting break from the routine!
The immediately surrounding terrain is different, too, more "traditionally Martian"-looking then Meridiani's norm. Interesting. -------------------- 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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Nov 6 2009, 03:06 AM
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#566
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 Member Group: Members Posts: 239 Joined: 18-December 07 From: New York Member No.: 3982 |
New Update:
http://marsrovers.jpl.nasa.gov/mission/sta...ll.html#sol2050 "The right-front wheel is now showing a return of elevated motor currents. The plan ahead is to rest the actuator during an extended stop for an in-situ (contact) science campaign." Luckily we have a big rock in front of us. 
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Nov 6 2009, 06:58 AM
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#567
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Member Group: Members Posts: 599 Joined: 26-August 05 Member No.: 476 |
I wonder if the slip and aborted drive had anything to do with return of elevated wheel current?
Hopefully, the "sublime" terrain up ahead is indeed that for driving. |
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Nov 6 2009, 08:09 AM
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#568
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Special Cookie Group: Members Posts: 2168 Joined: 6-April 05 From: Sintra | Portugal Member No.: 228 |
QUOTE (marsophile @ Nov 6 2009, 12:04 AM) It looks top-heavy. Why doesn't it fall over? Buried base? From hortonheardawho's color image two posts above it looks like it isn't as..."monolithic"...as it may appear on a first observation, it is my impression that Marquette is...ah my english fails me here...shredded(?) vertically but not until the bottom of it, that could provide it the required stability to not fall over... EDITED: Technical question here...I was messing around with this image in good old CorelDraw: http://qt.exploratorium.edu/mars/opportuni...NAP2446L5M1.JPG As some of you might know with Corel you can adjust the gama of an image, what happened was that some green pixels appeared in a single location in the whole photo. Can any of you wizards tell me why? Thanks!
-------------------- "Ride, boldly ride," The shade replied, "If you seek for Eldorado!"
Edgar Alan Poe |
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Nov 6 2009, 05:07 PM
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#569
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Senior Member Group: Members Posts: 4247 Joined: 17-January 05 Member No.: 152 |
Looking at the closeups of Marquette, it's centre of mass appears to be safely above the area of rock-ground contact, so it shouldn't fall over. Also, we've only seen it from one direction. It could be that the base is elongated in the line-of-sight direction, which would make it even more stable.
To me Marquette doesn't look like the Fe-Ni meteorites we've been visiting. But presumably it could be another kind of meteorite (or ejecta as others have said). We have seen one non Fe-Ni meteorite - can anyone recall where/when that was? If you look at Horton's false-colour view of the area: http://www.flickr.com/photos/hortonheardawho/4079004188/ you can see several smaller pieces around Marquette that have a similar purply-bluish false-colour hue, which also don't look like Fe-Ni meteorites - perhaps they're fragments of a bigger Marquette? |
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Nov 6 2009, 05:11 PM
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#570
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 Senior Member Group: Admin Posts: 4763 Joined: 15-March 05 From: Glendale, AZ Member No.: 197 |
QUOTE (ustrax @ Nov 6 2009, 12:09 AM) some green pixels appeared in a single location in the whole photo. Can any of you wizards tell me why? Thanks! I'll let the image gurus like Ted answer that, but let's be REALLLLLLLL careful with this discussion -------------------- If Occam had heard my theory, things would be very different now.
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