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Cape York - Shoemaker Ridge and the NE traverse, Starting sol 2735
fredk
post Oct 10 2011, 04:38 AM
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Yep - I don't recall a group of globby cobbles quite like that.

This frame's looking farther up CY towards the main clay signature area:
http://qt.exploratorium.edu/mars/opportuni...0M1.JPG?sol2740
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mhoward
post Oct 10 2011, 04:54 AM
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Where do you even start with a place like this? Will be interesting to see what happens next.

Edit: Well, start with some Pancam, hopefully smile.gif
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mhoward
post Oct 10 2011, 05:13 AM
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Here's a version of the 360x80 degree Navcam anaglyph with image sharpened and focal point a bit farther out. (I'm fascinated by the topography to the north-northeast.)
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Bill Harris
post Oct 10 2011, 06:05 AM
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Curious, yes. Note that the cobbles all have a light area on one end. First thought was "ah, a specular reflection", but in an L0 Navcam, light=reddish so it's an "ocher" spot. Given the orientation, they seem to be in the "downwind" direction so it's in a wind-dead zone and light particles tend to collect and adhere or beind downwind, there is less aeolian abrasion and erosion. And in fredk's Navcam view, look at the ripple-forming sand plus the rounded cobbles, with a mix of particles like that, this is a area of active weathering and erosion. Unique area, and we've just now gotten here.

I'm hoping for a sidetrip to the spot with those rectangular lineations (which I'm informally calling "Secular City" til we get an official name) for a quick peek and close-in color views.

That fascinating topography is in the direction of the dark-filled crater, "summit crater", informally.

--Bill


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Tesheiner
post Oct 10 2011, 06:48 AM
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QUOTE (mhoward @ Oct 10 2011, 04:35 AM) *
Quite a view.

Sol 2740 360x80 degree Navcam left right anaglyph

Edit: tweaked the anaglyph a bit

The left navcam mosaic in polar form.
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Bill Harris
post Oct 10 2011, 11:11 AM
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Good application of a circular panorama.

Compare with Phil's Cir_Pan of Mike's Sol-2710 Navcam pan:

http://www.unmannedspaceflight.com/index.p...st&id=25510

(in post http://www.unmannedspaceflight.com/index.p...st&p=178440 ) -- you can tell we are no longer on the side of a hill, and you can just make out "summit crater" to the NNE.

--Bill




EDIT: and with Phil's current circular pan two posts down: http://www.unmannedspaceflight.com/index.p...st&id=25663 . Same data, different perspectives.


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climber
post Oct 10 2011, 01:15 PM
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QUOTE (fredk @ Oct 10 2011, 01:25 AM) *
I'm not sure if this will help, but generally the slopes are east facing here, although there are some "knobs" that might have north-facing slopes of varying degrees, that I've circled here:
I'm thinking those are the areas they want to map carefully.

I've got the point , thanks Fredk, this make sense now.


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Phil Stooke
post Oct 10 2011, 01:38 PM
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My version of mhoward's nice panorama in circular form.

Phil

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Bill Harris
post Oct 10 2011, 04:59 PM
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I uploaded to the PhotoBucket site an index image of the area between Odyssey Crater and the "unnamed summit crater" in the CRISM clay area, in PNG format.

HiRISE image of part of Cape York, at Endeavour Crater.
Cropped, sharpened and enhanced and map oriented.
Covers MER traverse from Odyssey Crater to CRISM clay area

Image ESP_024015_1775 _RED

http://i142.photobucket.com/albums/r91/wil...maker_Ridge.png


Somewhat grainy-looking, but I've concluded that this is due to sub-pixel light spots and dark cobbles on the ground pushing the average pixel value up or down.

You can orient yourself using Tesheiner's Route Maps or with the Cir_Pans uploaded earlier.

--Bill


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Guest_Sunspot_*
post Oct 10 2011, 05:22 PM
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Guests






Do those rectangular features correspond to the clay signature?
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Floyd
post Oct 10 2011, 05:38 PM
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Nope, just the foundation stones of the old fort. laugh.gif


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ElkGroveDan
post Oct 10 2011, 07:10 PM
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Now we know where it landed after it was sent spinning.
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fredk
post Oct 10 2011, 08:12 PM
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Nice view from sol 2736 showing Odyssey ejecta, then Odyssey itself, then Spirit Point on CY, and finally the jumbled terrain we zoomed over on our way in...
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mhoward
post Oct 10 2011, 10:23 PM
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Not seamless, but... (Sol 2736 "Kirkland Lake" red-cyan anaglyph)
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Ron Hobbs
post Oct 11 2011, 12:19 AM
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QUOTE (Bill Harris @ Oct 9 2011, 10:05 PM) *
I'm hoping for a sidetrip to the spot with those rectangular lineations (which I'm informally calling "Secular City" til we get an official name) for a quick peek and close-in color views.


Those 'rectangular lineations' look a lot like the cemented fractures in Gale Crater. Description of cemented fractures.



They don't say anything about clay in the image caption, but it is evidence of water. My guess the MER team will want to take a look at this feature; maybe Oppy will scoop MSL.

Anyway, I hope so too. Go Oppy, go! wheel.gif
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