[X] My Assistant

[jamescanvin]

Since the main Victoria thread is now explicitly about Duck Bay and the surrounds here is another for far rim discussions.

Quite a bit more has been revealed after the last drives. Here's the MOC/Navcam match.




James

[dvandorn]

Great work, Tom. Interestingly, there are some ways in which the MOC image gives more information than the HiRISE image; the MOC image shows albedo differences more dramatically than the HiRISE image. I'm sure this is because of the higher sun angle. High sun angles give you better albedo differentiation and tend to wash out fine detail.

I'm sure that if HiRISE imaged the site at the same sun angle as MOC did, you'd see more similarity in the albedo features of the two images. But as it stands, it's actually helpful to have the MOC image to show you where to look for rocky strata exposed at or near the surface, since such features are somewhat less obvious on the HiRISE image.

Finally, after staring at your gif for several minutes, I keep thinking I see a boulder in the HiRISE image that doesn't have any correlated bright or dark spot in the same position in the MOC image. It's off one of the capes to the north-northwest, perhaps closer to straight north. (I don't have the gif loaded at the moment, and I can't get back to it while typing... grrr... so I can only rely on my less-than-perfect memory, here.) I can see correlating spots for a boulder slightly north of the one I'm talking about, and a conspicuous lack of anything at all visible below and south of it in the MOC image.

I don't see any changes in the central dune field, however...

-the other Doug