South Endeavour Crater

Time for the next chapter.

The last topic in the Opportunity Saga was
Marathon Valley

This continuation is dedicated to the memory of HortonHeardAWho, who taught us all.

http://qt.exploratorium.edu/mars/opportunity/pancam/2016-09-04/1P526249798EFFCSIWP2433L2M1.JPG

Going through Lewis and Clark pass.

http://morris.best.vwh.net/ftp/pass.jpg

My first attempt at a color image.

Any possibility this white stuff can be frost?

Interesting suggestion! I don't think so. The brightness is not as prominent in the L5 channel:

http://qt.exploratorium.edu/mars/opportunity/pancam/2016-09-04/

The L7 channel is kind of messed up but I think the bright area is brownish in color, and I think it is a continuation of the bright area in the 3-D image.

Maybe there is a thin covering of frost over sand, but I think that area may be brighter because of being fresher.

Barsoomer;

Very good idea to start a new topic. Congrats.

Nice image also. It seems that the white stuff on the Navcams was really probably the high contrasty pale sands.

I'm testing this post on this new topic to see how long new posts take to appear. With the older posts it usually took more than 1/2 day or longer if it was a reply near a multiple of 20.

Winston

Mars Rover Opportunity also found ooids:
http://wretchfossil.blogspot.tw/2016/09/mars-rover-opportunity-also-found-ooids.html

mer-update-opportunity-wraps-up-science-in-marathon-valley

Monthly TPS update by A.J.Rayl.

Quote:
"We have out ahead of us---at the gully and also another target we're going to drive by on our way---features that seriously look like they have been carved by flowing fluids, water or debris flow or something like that."

Groovy! Thanks Barsoomer. Here's some big downslope flows at about the same scale as the bigger grooves at Marathon Valley, same orientation, and close by at Victoria:

http://mars.nasa.gov/mer/gallery/all/1/p/988/1P215899133EFF76POP2417R2M1.JPG

Look near the image center, just a little up and left from the center. There are a few. The biggest one is quite obvious. These fit well with the other sand streams that we have seen at Victoria, Endurance and Erebus. But there's no water, so never mind.

http://morris.best.vwh.net/ftp/mcL.jpg

Microchannel of the fine dark sand. Dry, but so reminiscent of watery areas on Earth.

http://qt.exploratorium.edu/mars/opportunity/navcam/2016-09-09/1N526696973EFFCSPCP1979L0M1.JPG

This is an odd feature---like a clearing.

http://qt.exploratorium.edu/mars/opportunity/pancam/2016-09-13/1P527054152EFFCSVUP2443L2M1.JPG

We seem to be approaching that bright mound. The next science target?

http://morris.best.vwh.net/ftp/leakypipe.jpg

Dark stuff erupting from the subsurface?

http://qt.exploratorium.edu/mars/opportunity/pancam/2016-09-15/1P527240592EFFCS1HP2444R2M1.JPG http://qt.exploratorium.edu/mars/opportunity/pancam/2016-09-15/1P527240592EFFCS1HP2444L2M1.JPG

Getting closer to the mound.

http://morris.best.vwh.net/ftp/newby.jpg

Isolated NEWBERRY bunch! First one we've seen since Cape York.

Context:

http://qt.exploratorium.edu/mars/opportunity/pancam/2016-09-19/1P527586625EFFCS5GP2559L2M1.JPG

Upper right.

http://morris.best.vwh.net/ftp/spirit.jpg

Spirit Hill overlooking Endeavour Crater.

Barsoomer;

Have you tried Microsoft Ice for stitching images. Its very good and the price is right, Free.

Winston

Hi Winston, thanks for the tip. However, MS ICE apparently only runs on PCs and I have a Mac. If anyone can recommend autostitch software for the Mac, please let me know.

http://morris.best.vwh.net/ftp/erode.jpg

Image site has full filter treatment for the above. My color is from the L4,L5,L6 channels, which are closest to RGB.

To me the upper right part of this:

http://qt.exploratorium.edu/mars/opportunity/pancam/2016-09-25/1P528032107EFFCT37P2354L2M1.JPG

is the most interesting, but it gets only L2,R2 images in this release.

Barsoomer;

They've now added the R1 image. Below is a 3D made of a simulated green R2 avg R1 filter.

https://photos.smugmug.com/photos/i-f7tLNV8/0/O/i-f7tLNV8.jpg


Winston

Look at the formation at the bottom left of the image. I think there can be little doubt that the erosion of the rock there is from the soil in which the rock was anchored.

Winston

Oops! The R2/R1 3D was for the first image in your reply 16.

Winston