Traverse to the Delta, sols 379-414 - Unmanned Spaceflight.com

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Traverse to the Delta, sols 379-414, 15 Mar 2022- 21 Apr 2022

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Bill Harris View Member Profile	Apr 29 2022, 10:17 AM Post #151
Senior Member Group: Members Posts: 2998 Joined: 30-October 04 Member No.: 105	One aspect of those meter-sized boulders is how rounded they are. They have been part of the bedload of this waterway through many catastrophic flows. And note the diverse rock types present. There was a lot happening upstream of the delta. --Bill -------------------- Dawn-- Ceres Pluto Encounter Rosetta Mission

PDP8E

Oct 15 2022, 07:02 PM

Post #152

Member

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A little late ... ( and somewhat back in action )
Sol 404 - Chute and Backshell -- DeepHisto

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CLA CLL

Phil Stooke

Oct 16 2022, 06:22 AM

Post #153

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https://mars.nasa.gov/resources/27056/perse...e-views-phobos/

Perseverance images Phobos.

Taking that image and blowing it up considerably:

It looks awful, but I would hope the raw data will look better when available. If you brighten the dark area the part of Phobos illuminated by Mars becomes visible. A dark streak in that area is shadow (Mars shadow) in Stickney crater. I cleaned up a lot of fluff in the image off the disk.

Phil

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... because the Solar System ain't gonna map itself.

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MahFL View Member Profile	Oct 16 2022, 06:28 PM Post #154
Forum Contributor Group: Members Posts: 1372 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11	There is still one thing I don't fully understand, how is the drilled core placed into the sample tubes ? Is the tube inside the drill or is the sample core pushed into the tube ? Thanks.

mcaplinger View Member Profile	Oct 16 2022, 06:49 PM Post #155
Senior Member Group: Members Posts: 2511 Joined: 13-September 05 Member No.: 497	QUOTE (MahFL @ Oct 16 2022, 10:28 AM) There is still one thing I don't fully understand, how is the drilled core placed into the sample tubes ? Is the tube inside the drill or is the sample core pushed into the tube ? The tube is inside the drill, but the whole process is fairly involved. See Figure 6 of "Mars 2020 Rover Adaptive Caching Assembly: Caching Martian Samples for Potential Earth Return", Silverman and Lin, https://esmats.eu/amspapers/pastpapers/pdfs...0/silverman.pdf -------------------- Disclaimer: This post is based on public information only. Any opinions are my own.

mcaplinger View Member Profile	Oct 17 2022, 07:16 PM Post #156
Senior Member Group: Members Posts: 2511 Joined: 13-September 05 Member No.: 497	QUOTE (Phil Stooke @ Oct 15 2022, 10:22 PM) It looks awful, but I would hope the raw data will look better when available. If you brighten the dark area the part of Phobos illuminated by Mars becomes visible. I think this image is from sol 319 so the raw image is available already -- https://pds-imaging.jpl.nasa.gov/data/mars2...2_1100LMJ02.IMG if I'm not mistaken. It looks somewhat better if you get rid of the hot pixels and process appropriately, but Phobos is only 45-ish pixels across so there are limits to how good it can be (I blew this up 2x and just crudely painted out the hot pixels, so don't stretch too hard.) Attached image(s) -------------------- Disclaimer: This post is based on public information only. Any opinions are my own.