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MSL - Stopover on the Road to Glenelg - Arm Commissioning, Commissioning Activity Period 2 - Sols 30 through 37
jmknapp
post Sep 16 2012, 01:13 AM
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QUOTE (drz1111 @ Sep 15 2012, 09:52 AM) *
Volcanics and water-mediated sedimentary processes are not mutually exclusive.


Did you see the news story re Mars/water going around a few days ago? Here's the BBC take:

Clays in Pacific lavas challenge wet early Mars idea

QUOTE
The rocks at Mururoa Atoll in French Polynesia contain clay minerals that look like those seen on the Red Planet. But whereas the Martian clays are taken to be the products of weathering of rocks by liquid water, the atoll's clays have a very different origin. These were precipitated directly from water-rich molten rock as it cooled. The research is published in Nature Geoscience by Prof Alain Meunier from the University of Poitiers, France, and colleagues. It is interesting because it strikes at the heart of the notion that the Red Planet was awash with water, perhaps at its surface, more than 3.75 billion years ago - an idea that has been put forward to explain the great abundance of some clay deposits observed from orbit by satellites.


Which explains maybe why water has to be continually "discovered" on Mars. There's water, and then there's water.


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jmknapp
post Sep 16 2012, 01:17 AM
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QUOTE (stewjack @ Sep 15 2012, 04:03 PM) *
Since we already passed it by perhaps we will see another one.


Who's to say the science team can't revisit these sites once they are firmly in the driver's seat?


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pac56
post Sep 16 2012, 02:05 AM
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How much multitasking is MSL capable? For example, what science activities can be done while roving, if any. Does driving eat all of the energy budget?
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stewjack
post Sep 16 2012, 02:21 AM
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QUOTE (jmknapp @ Sep 15 2012, 08:17 PM) *
Who's to say the science team can't revisit these sites once they are firmly in the driver's seat?

Well I if we traveled a long distance to return to the rock, and then discoved that the other side of the rock made it much less interesting,
please don't say that I ever thought that rock was interesting! Not me! No way! It's all jmknapp's fault tongue.gif

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jmknapp
post Sep 17 2012, 01:24 AM
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Well, then I fall back on "I'm an engineer, not a scientist, dammit!" Just musing on what they can do if they want, particularly since they haven't gone all that far yet..


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paraisosdelsiste...
post Sep 17 2012, 01:56 PM
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With the downloaded Left MastCam frames I did an animation to see how it looked just for preview purposes... while we wait for the full set of frames smile.gif

Attached Image
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fredk
post Sep 17 2012, 03:42 PM
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This post doesn't fit into any thread perfectly - long baseline stereo from sols 19 and 37. This is using M100 with a good baseline. It gives a taste of what's to come when we get M100 coverage of the main butte/mesa area from a new position...

Here's a greyscale anaglyph:
Attached Image

And colour side-by-side:
Attached Image
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elakdawalla
post Sep 17 2012, 04:23 PM
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Wow, that one is seriously brain-bending. Regarding the thread, you've got it in the right place; when an image includes data from many dates, the date I use for bookkeeping / temporal sorting of blog posts and pictures is the most recent data acquisition date.


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Ant103
post Sep 17 2012, 04:39 PM
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Drive direction Mastcam34 pan :



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EdTruthan
post Sep 17 2012, 04:54 PM
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QUOTE (fredk @ Sep 17 2012, 08:42 AM) *
....long baseline stereo from sols 19 and 37. This is using M100 with a good baseline.....

Very Nice FredK. I'm sure you've noticed as I did that your anaglyph comprises one of the few good overlapping MC100's of the Mt. Sharp flanks for hi-res anaglyphs so far. (Grrrr...). None the less, using the MC34 + MC100 technique we've tried a few times, the full breadth of the 4 new Sol 37 MC100 pictures still makes a killer z-axis treat. Here's the 2D and 3D versions:

Default color:



Enhanced:



And my favorite, an anaglyph:



Yum, yum, yum....


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udolein
post Sep 17 2012, 07:57 PM
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Phobos-Sun encounter at Sep 13, 2012 on Sol 37:

Attached Image

animated gif (11 images), click for larger image


Regards, Udo


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udolein
post Sep 18 2012, 12:32 PM
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My version of the Sol 37 CAP2 scenery in a more earthlike style

Attached Image

simply breathtaking ...

Cheers, Udo


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fredk
post Sep 19 2012, 07:05 PM
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Emily, it looks to me like a sunspot in the M100 sequence, see arrow:
Attached Image

At least it appears to be at the same position relative to the sun in all the frames, while the sun drifts from frame to frame, so it doesn't look like a bad pixel or whatever. However, it fluctuates quite a bit in visibility, even disappearing in frame 2, but that could simply be due to noise.

Edit: perhaps we could confirm this with earth-based imagery, taking into account that we're seeing the sun from about 90 degrees different longitude between Earth and Mars.
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maschnitz
post Sep 19 2012, 07:15 PM
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Stereo B has a good view, roughly where Mars is in its orbit (if I read the various diagrams correctly). Perhaps you can find the time of observation in Stereo B's archives.

http://stereo-ssc.nascom.nasa.gov/where.shtml

http://stereo.gsfc.nasa.gov/beacon/
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elakdawalla
post Sep 19 2012, 07:30 PM
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Fredk, I saw that too; it's what prompted me to ask the question.

Maschnitz, you're right, Stereo B's view is more similar to Mars' than the view from Earth (roughly 30 degrees difference?)

Solar system simulator

Here's the Stereo B view on 9/13 at 5:11 UT (the eclipse began at 5:15 but there's a few more minutes light time from STEREO B to Mars, not that it matters)

To account for the ~30 deg difference we might look at the STEREO B view from ~2 days prior (Sun rotates once in 26 days at equator)

Because Curiosity's at the equator we need to rotate the STEREO view of the sun by 90 degrees, right? Which way, counterclockwise or clockwise?


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