Dust Devils In Jezero Crater, single-point repository of imagery |
Dust Devils In Jezero Crater, single-point repository of imagery |
May 12 2021, 03:48 PM
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Member Group: Members Posts: 819 Joined: 3-June 04 From: Brittany, France Member No.: 79 |
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Jul 1 2021, 01:45 AM
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Newbie Group: Members Posts: 16 Joined: 1-April 21 From: La Crescenta, CA Member No.: 9001 |
(I posted this initially to the EDL thread but can't seem to find it now, so here it is for posterity)
Perseverance recorded this DD during descent. Simeon Schmauss spotted this in LCAM footage and produced this stabilized and reprojected view, shown here at 20x real time. The DD is seen moving westward at roughly 8.5 m/s (20 mph) and was estimated to be about 25 m (75 ft) wide. https://twitter.com/stim3on/status/1379575241970683908?s=20 |
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Jul 1 2021, 02:11 AM
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Newbie Group: Members Posts: 16 Joined: 1-April 21 From: La Crescenta, CA Member No.: 9001 |
Perseverance recorded this DD during descent. Simeon Schmauss spotted this in LCAM footage and produced this stabilized and reprojected view, shown here at 20x real time. The DD is seen moving westward at roughly 8.5 m/s (20 mph) and was estimated to be about 25 m (75 ft) wide. https://twitter.com/stim3on/status/1379575241970683908?s=20 Note the dark streak seen in the crater floor between the prominent foreground peninsula and the background peninsula. That got me and Simeon looking at HiRISE views of this area to see if that might be a transient feature, maybe a DD track. Sure enough, that track was visible in the first HiRISE view after Perseverance's arrival but was not present just six months earlier. That track is ~34m wide. Across this broader HiRISE swath you can see dozens or hundreds of similar transient streaks, some estimated to be ~80m wide, predominantly oriented east/west. This place is a popular playground for these devils! |
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