Perseverance Imagery, technical discussion of processing, cameras, etc. Options

[Greenish]

Putting this here, for reference as the payload of the JSON feed link for Perseverence raws (see source in other thread here)
https://mars.nasa.gov/rss/api/?feed=raw_ima...;&extended=
Looks like there's a ton of good data in addition to just the (PNG! Bayer color separated!) images

This is for the first image shown on the page at the moment.

CODE

"images":
    [
        {
        "extended":
            {
            "mastAz":"UNK",
            "mastEl":"UNK",
            "sclk":"667129493.453",
            "scaleFactor":"4",
            "xyz":"(0.0,0.0,0.0)",
            "subframeRect":"(1,1,1280,960)",
            "dimension":"(1280,960)"
            },
        "sol":2,
        "attitude":"(0.415617,-0.00408664,-0.00947025,0.909481)",
        "image_files":
            {
            "medium":"https://mars.nasa.gov/mars2020-raw-images/pub/ods/surface/sol/00002/ids/edr/browse/rcam/RRB_0002_0667129492_604ECM_N0010052AUT_04096_00_2I3J01_800.jpg",
            "small":"https://mars.nasa.gov/mars2020-raw-images/pub/ods/surface/sol/00002/ids/edr/browse/rcam/RRB_0002_0667129492_604ECM_N0010052AUT_04096_00_2I3J01_320.jpg",
            "full_res":"https://mars.nasa.gov/mars2020-raw-images/pub/ods/surface/sol/00002/ids/edr/browse/rcam/RRB_0002_0667129492_604ECM_N0010052AUT_04096_00_2I3J01.png",
            "large":"https://mars.nasa.gov/mars2020-raw-images/pub/ods/surface/sol/00002/ids/edr/browse/rcam/RRB_0002_0667129492_604ECM_N0010052AUT_04096_00_2I3J01_1200.jpg"
            },
        "imageid":"RRB_0002_0667129492_604ECM_N0010052AUT_04096_00_2I3J01",
        "camera":
            {
            "filter_name":"UNK",
            "camera_vector":"(-0.7838279435884001,0.600143487448691,0.15950407306054173)",
            "camera_model_component_list":"2.0;0.0;(46.176,2.97867,720.521);(-0.701049,0.00940617,0.713051);(8.39e-06,0.0168764,-0.00743155);(-0.00878744,-0.00869157,-0.00676256);(-1.05782,-0.466472,-0.724517);(-0.702572,0.0113481,0.711523);(-448.981,-528.002,453.359)",
            "camera_position":"(-1.05782,-0.466472,-0.724517)",
            "instrument":"REAR_HAZCAM_RIGHT",
            "camera_model_type":"CAHVORE"
            },
        "caption":"NASA's Mars Perseverance rover acquired this image of the area in back of it using its onboard Rear Right Hazard Avoidance Camera. \n\n This image was acquired on Feb. 21, 2021 (Sol 2) at the local mean solar time of 15:37:11.",
        "sample_type":"Full",
        "date_taken_mars":"Sol-00002M15:37:11.985",
        "credit":"NASA/JPL-Caltech",
        "date_taken_utc":"2021-02-21T02:16:26Z",
        "json_link":"https://mars.nasa.gov/rss/api/?feed=raw_images&category=mars2020&feedtype=json&id=RRB_0002_0667129492_604ECM_N0010052AUT_04096_00_2I3J01",
        "link":"https://mars.nasa.gov/mars2020/multimedia/raw-images/?id=RRB_0002_0667129492_604ECM_N0010052AUT_04096_00_2I3J01",
        "drive":"52",
        "title":"Mars Perseverance Sol 2: Rear Right Hazard Avoidance Camera (Hazcam)",
        "site":1,
        "date_received":"2021-02-21T23:12:58Z"
        },

(with syntax color):


Here's hoping that one of you skilled characters can make good use...

[John Whitehead]

Do color calibration targets ever fade (change color) from solar (and worse) radiation on Mars?
How are they tested on Earth and proven to not fade?