The Top of Vera Rubin Ridge Part 1, Site 66-67, sol 1812-1943, 11 Sep 2017-23 Jan 2018 Options

[atomoid]

Tafoni-esque weathering due to differential cementation? nice example of a bedrock remnant here in stereo (anaglyph/cross/parellel) from sol1870 M34/m100 pair (debayered via G'MIC in GIMP).

[MarkG]

Are the sediments Curiosity is among still nearly level on the average, or are they dipping towards the rim?

[PaulH51]

Sol 1876 RMI mosaic (MS ICE), possibly the dark-toned pebble dubbed "Middleton" referenced in the latest mission update

[PaulH51]

Curiosity completes another drive on sol 1877, its last drive before Thanksgiving. We don't have the post drive images yet, but Midnight Planets is reporting it as ~20.2m Southwest (-143º)

[jvandriel]

The Navcam L view on Sol 1877.

Jan van Driel

[PaulH51]

Nice NavCam Pan Jan

Here's the Arm Workspace for Sol 1877 L-Mastcam MS ICE / Raw
Really nice facets on the sections of exposed bedrock? I guess there is a proper name for that sort of erosional feature, but they look cool whatever they're called

[charborob]

Sol 1877 Lmastcam view:

[Phil Stooke]

On sol 1878 a set of images were taken by the Right Navcam looking at the mountain to search for changes (dust devils etc.) No dust devils are obvious in them but there is an interesting change.

There are 5 images in the set. Images 4 and 5 show a significant change, a band crossing the mountain:



In this image the top is the raw Navcam (5th image). The middle is a VERY extreme contrast stretch of the difference between 4 and 5, showing a white band. The white is not significant - it would be dark if I did the comparison the other way round, so it only serves to identify an area of change. The bottom overlays the difference on the raw image to show where the difference is.

Doing the same with images 3 and 4 gives this:



The white band has moved - in time order it moves from the top of the ridge down towards the rover. There are possibly other subtle changes in the middle distance. Images 1 and 2, and 2 and 3, also show extremely subtle changes which might be real.

The change might be on or near the surface - a puff of dust picked up by wind - or it might be caused by moving cloud shadows.

Phil

[Phil Stooke]

And Jan's sol 1877 panorama in circular form. Interesting that the top of the ridge here has a gravelly surface, quite different from the bare fractured rock on the lower terraces. In HiRISE it looks very bland.

Phil

[fredk]

The white band has moved - in time order it moves from the top of the ridge down towards the rover.

I've noticed similar things before. Here's an example from 1787 (which I never posted back then) where you can clearly see dark/light bands moving up the slopes:

I agree broad gusts or cloud shadows are likely to blame.

[PaulH51]

Rough and ready stitch of a set of 10 sol 1979 RMI's that feature a distant target seen on this mast cam frame from charborob's 1877 mosaic.
The images are unprocessed except for stitching.

[PaulH51]

I agree broad gusts or cloud shadows are likely to blame.

Well spotted guys

[Ant103]

Sol 1877 Navcam panorama. The softness of late afternoons landscapes

[PaulH51]

Interface of two rock types? or alteration zone (groundwater from the larger fracture?)
Raw Sol 1879 MAHLI (1879MH0002990010702448C00_DXXX) Many more fine examples of dark and light toned targets examined by the MAHLI here

[neo56]

Mosaic of two debayered MC100 photos, showing nice details on the distant hills.