Dust Devils In Jezero Crater, single-point repository of imagery Options

[neo56]

My take on this awesome shot of Ingenuity in front of two distant dust devils, and in animation.

[neo56]

A very beautiful dust devil was recorded by Mastcam-Z Right in the sequence of the 5th flight of Ingenuity.
Substracting MCZ frames by a frame without the dust devil makes it more visible.

[Andreas Plesch]

Another day, another devil in dust alley:



(preview does not seem to play, click to animate)

https://mars.nasa.gov/mars2020-raw-images/p...0_01_295J01.png

[PDP8E]

a little late with this ... I just saw Andreas post this as well - post #54
Here is a gif of the best frame of the dust devil on Sol 84

[Phil Stooke]

Dust devil alert! (yes, another one). Sol 92, just about due west, right side of this image (NLF_0092_0675115622_792EBY_N0040136NCAM00698_00_0LLJ01_800).

Phil

[charborob]

Sol 92 LMastcam-Z, with a dust devil in the upper left corner:

[PDP8E]

Since this place looks like Dust Devil Alley... I wrote a little workflow program to look for them in the NAV sequences

This is SOL 84 ... (we've seen this --- eyes left) ... the gain is cranked in the program



This is Sol 78 ... The program found a near-invisible DD



(The blues are darker areas that change color before they are gained... it's a work in progress

[neo56]

The nice dust devil of sol 92 captured by MCZ-Right, contrast enhanced:



And an animation:

[Andreas Plesch]

Another set of images captured by Hazcam and Navcam of one or possibly two dust devils, a good two minutes apart, on sol 102, in the favored spot, in front of the darker crater wall:

[PDP8E]

Here is a GIF of 21 images (NAVCAM LEFT) for 5 minutes around local noon on Sol 101
It is from a program that looks for dust devils
Short Story: there are none close by (but there is something going on on top of the deltas in the center)
With the gain turned all the way up -- I suspect I am seeing compression artifacts, exposure differences, sensor sensitivities

[PDP8E]

Sol 100 Dust Devil Program
21 image GIF - NAVCAM-LEFT - 5min starting at 2:15 pm local

(1) left of center on top of a delta
(2) right of center in front of the deltas (speedy)

[Andreas Plesch]

A more stationary dust swirl on the center of the delta, on sol 107:



Click to animate. The frame spacing is about 14s but played at 0.5s for dramatic effect.

quickest workflow:

- filter raw images to select frames as specifically as possible.
- use bookmarklet to extract list of raw image urls
- copy list and paste as wget arguments on console to download, remove urls if necessary
- optionally enhance images with gimp or imagemagick
- upload images to ezgif.com
- use ezgif to crop, enhance, label and optimize animated gif
- download from ezgif.

[PDP8E]

Sol 107 Dust Devil Watch
Finer details still elude the detector so far ... but that delta is far away!
5 minute GIF starting 1:15pm local time
Scintillating bits are compression/stretching (?) or real (?)

[PDP8E]

Sol 111 -- Dust Devil Watch
Probable: One very far DD -- far left on the top of the crater rim - persists over several frames
Otherwise not much else
Gain all the way up - and then some - (very scintillating!)
GIF

[vikingmars]

Sol 114: a big dust devil was passing close to the rover