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Jezero Delta Campaign, Sols 414-1000, 21 Apr 2022- 23 Dec 2023
serpens
post Feb 4 2023, 02:08 AM
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Given the 90 degree cleavage my somewhat wet fingered guess would be a fragment of plagioclase feldspar. A reasonably high probability actually given that the Jezero catchment encompasses part of the highest concentration of plagioclase identified by TES.
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scalbers
post Feb 4 2023, 08:38 PM
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Sol 693 panorama, along with a large version derived from Paul's tiled NavCams and pointing info.

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scalbers
post Feb 4 2023, 11:16 PM
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Sol 694 panorama, along with a large version derived from Paul's tiled NavCams and pointing info.

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Sol 695 panorama and large version.

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We can watch the changing landscape in this extended drive animation from Sol 394 to the present.


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Steve [ my home page and planetary maps page ]
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neville thompson
post Feb 5 2023, 06:50 AM
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Gigapan - PERSEVERANCE 676
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Gigapan Website
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neville thompson
post Feb 5 2023, 06:56 AM
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Gigapan - PERSEVERANCE 682
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neville thompson
post Feb 5 2023, 10:56 AM
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Gigapan - PERSEVERANCE 690
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Phil Stooke
post Feb 6 2023, 07:46 AM
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I thought I would experiment with something different for the sol 695 drive. Steve Albers has been making panoramas from Paul's images. The first step in my circular image production is to make a panorama as well, but they are not very aesthetic so I have not been posting them. This time I thought I would experiment with Steve's panorama for sol 695, and this is the result:

Attached Image


Attached Image



It works well, so if Steve will allow it I will use his panoramas again when they are available. It saves me some time (and time is something I don't have enough of). I did do some work to reduce the visibility of image seams - some brightness and colour changes, and a few small geometry adjustments, but it's still quicker than my usual process. And the image is sharper near the horizon.

Phil


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

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neville thompson
post Feb 6 2023, 11:25 AM
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Gigapan - PERSEVERANCE 693
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scalbers
post Feb 7 2023, 06:21 PM
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Sol 698 panorama, along with a large version derived from Paul's tiled NavCams and pointing info.

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We can watch the changing landscape in this extended drive animation from Sol 394 to the present.


--------------------
Steve [ my home page and planetary maps page ]
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Phil Stooke
post Feb 8 2023, 11:37 PM
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This is Steve's panorama (based on Paul's images) in circular form. Some seams tweaked a bit and the contrast enhanced. The very steep slope in front of the rover makes for a distorted view.

Phil

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

Also to be found posting similar content on https://mastodon.social/@PhilStooke
NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain)
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neville thompson
post Feb 9 2023, 08:32 PM
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Gigapan - PERSEVERANCE 696
© NASA/JPL-Caltech/MSSS/ASU/NeV-T

Gigapan Website

Gigapan Website
My Website


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serpens
post Feb 9 2023, 10:48 PM
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Is that tilt on the left of Neville's image gravity driven collapse or erosion followed by a later deposition from right to left?
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tau
post Feb 11 2023, 12:03 PM
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The actual tilt of Mastcam-Z around the optical axis with respect to the horizon on the left side of Neville's panorama was about 4° clockwise,
while this part of the panorama is slightly tilted about 2° counterclockwise. Therefore, this part should be rotated 6° clockwise.
Additionally, there is a perspectivic effect. The top of the cliff is 60 m higher than the rover position. The distance to the rover is about 180 m.
The cliff edge is on its left side farther away from the rover, which reduces the apparent height there due to perspective and results in an
additional apparent tilt of the cliff edge to the left by a few degrees. Therefore, the cliff will look more like the image below,
where the apparent tilt is reduced, and only a slight apparent dip of the layers above the erosional unconformity to the left remains.
The elevation map shows that the top of the cliff is quite flat within a few meters.
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scalbers
post Feb 11 2023, 08:21 PM
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Sol 700 panorama, along with a large version derived from Paul's tiled NavCams and pointing info.

Attached Image


Sol 702 panorama, along with a large version.

Attached Image


We can watch the changing landscape in this extended drive animation from Sol 394 to the present.


--------------------
Steve [ my home page and planetary maps page ]
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serpens
post Feb 11 2023, 10:27 PM
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Thanks Tau. I hadn't considered panorama tilt and thought the lower ridge provided a reasonable horizontal reference. But even with that correction I still see a rising gradient in the topset to foreset rollover points, evident in localised segments to preclude perspective errors. For example under the round basaltic boulder in the centre of your image. Probably another correction lurking but there is evidence of faulting with potential for localised tilting due to compression.
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