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Dust Storm
marsophile
post Oct 19 2018, 01:51 AM
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QUOTE (JRehling @ Oct 18 2018, 07:56 AM) *
In my many winters' experience with snow, and three recent experiences with forest fire ash, the deposition of a windborne, granular substance does not cover all surfaces equally. Maybe Oppy's solar panels accumulate half as much as nearby surface units, maybe twice as much. I don't know how we could know – unless and until Opportunity wakes up and sends us pictures.

The law of averages: an interval around the mean carries the most probability mass. It is true we cannot know in any absolute sense but we can maybe get a likely estimate that could inform the recovery strategy going forward.

With regard to CRISM on Winnemucca:
http://www.planetary.org/explore/space-top...nce-valley.html
QUOTE
Instead, the scientists are examining Winnemucca with ground imagery, remote sensing, and an orbital mineralogical detector.

I assumed the orbital mineralogical detector was CRISM. In any case, it can be imaged by HIRISE, and I think the bright backdrop might provide a convenient "canvas" for viewing the new dust deposit.
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James Sorenson
post Oct 19 2018, 05:33 AM
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QUOTE (JRehling @ Oct 18 2018, 06:56 AM) *
unless and until Opportunity wakes up and sends us pictures.


I think if that happens, a gust would have blown a vast majority of any fallout off of the panels since Oppy would have woken up and phoned home. We will never really know at leased for sure how much accumulation was really on them in that case or any case.

Oppy did take a pancam color panorama in the weeks on up to the end of science ops. So if the rover does wake up and starts taking pics around the area, change detection could be interesting. Not sure if even that would give an accurate fallout estimate, since winds could have also cleared the area.
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