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Dust Devils In Jezero Crater, single-point repository of imagery
tau
post Jul 23 2021, 09:46 PM
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Some very faint dust devils are even better visible in the difference images.
The images are converted to gray scale to remove amplified color noise.
From 0 min 43 sec to 1 min 26 sec I can count seven dust devils active at the same time.

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PDP8E
post Jul 25 2021, 05:54 PM
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Another view of the SOL 148 Event
Annotated -- 9 dust devils and a few gusts.
The event is 5 minutes long and we have 21 seconds of images.
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PDP8E
post Jul 26 2021, 01:05 AM
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SOL 151 Dust Devil Watch
360 degree quick peek (3 frames each in 5 stances) --1:45 PM local
Several DD's
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monty python
post Jul 26 2021, 06:07 AM
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This is amazing. Anybody want to build a wind farm on mars? Poor insight lander.
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neo56
post Jul 26 2021, 06:33 PM
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Really nice dust devils on sol 151.

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PDP8E
post Jul 27 2021, 12:00 AM
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SOL 153 Dust Devil Watch
21 Frames - single stance -- 11:55 AM local

One interesting DD -- it starts late -- wait for it! (center)
Another on the far left

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Andreas Plesch
post Jul 27 2021, 01:17 PM
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QUOTE (PDP8E @ Jul 25 2021, 12:54 PM) *
Another view of the SOL 148 Event
Annotated -- 9 dust devils and a few gusts.
The event is 5 minutes long and we have 21 seconds of images.

I really appreciate those animations. From memory this seems the most active 5 minutes observed so far in the area. Also, probably the clearest example of dust devils moving in opposite directions, simultaneously, perhaps hinting at local rotating 'supercells' spawning those turbulences.


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PDP8E
post Jul 27 2021, 10:47 PM
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SOL 154 Dust Devil Watch
360 degree quick peek (3 frames each in 5 stances) -- 12:30 PM local
DD's in the 4th and 5th sets
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PDP8E
post Jul 28 2021, 08:53 PM
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SOL 153 -- NAV - 2:51 PM local
There is a right-left pair if someone wants to try an anaglyph
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PDP8E
post Jul 29 2021, 11:57 PM
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SOL 156 Dust Devil Watch
21 Frames - single stance -- 12:15 PM local

Two DDs on the left will blow out-- BUT at the end, a crisp DD strolls in on the far right
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PDP8E
post Jul 30 2021, 08:25 PM
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SOL 157 -- NAVR - 2:30 PM local
There is part of a right-left NAV pair
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PDP8E
post Aug 2 2021, 01:19 AM
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SOL 151 Dust Devil Watch
360 degree quick peek (3 frames each in 5 stances) -- 3:20 PM local
Only two stances with DD and gusts
GIF
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PDP8E
post Aug 8 2021, 08:07 PM
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I finished up some improvements on the DD detector (C++) and tried it out on the SOL 148 Event.
Since this sequence was taken at High Noon at Jezero, there are no long shadows from the actual 'wispy' DDs.
So, I think the dark triangular 'mat' at the beginning is low flying dust flung from the passing DD. As the dust settles it takes on the color of the ground.
Light colors are more positive image pixels than the Averaged Comparison Image (21 frames), darks are more negative pixels
The program is fully automatic: drop the images in the working directory, press the button, and a minute later its is all done.
I believe a lot more hand processing would suss out more detail and make it more photorealistic.
I included the actual vs processed images as a comparison -- a little extra compression made it all fit into the upload limit.
GIF
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PDP8E
post Aug 9 2021, 03:10 AM
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SOL 166 Dust Devil Watch
360 degree quick peek (3 frames each in 5 stances) -- 12:30 PM local
Only one stance with DD
GIF
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( I think the Rover team may be using greyscale to save image download bandwidth (?) )


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atomoid
post Aug 11 2021, 08:48 PM
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Stereo (parallel) view attempt for DD sol157
..no parallax for make benefit stereo so subsequent bribe of glorious 'turtle' to pose foreground!
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