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Atop/Around the Greenheugh Pediment, Site 79-, sol 2695-, 3 Mar 2020-
neo56
post Jan 9 2021, 08:15 PM
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Wonderful work Olivier and Damia!
Before moving on the MastCam Left panorama, I wanted to finish a colorized version of a NavCam mosaic taken on sol 2979. Here it is:


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jvandriel
post Jan 9 2021, 10:34 PM
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The Navcam L panorama taken on Sol 2995.
Added 4 images taken by the R Navcam.

Jan van Driel

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Phil Stooke
post Jan 10 2021, 04:43 AM
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Jan's panorama in circular form. We are heading back to the planned route up the mountain.

Phil

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vikingmars
post Jan 10 2021, 08:50 AM
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[quote name='Ant103' date='Jan 9 2021, 03:54 PM' post='249184']
Nice to see you Olivier smile.gif

Bravo Damia smile.gif Nice to have good news from you also smile.gif smile.gif
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vikingmars
post Jan 10 2021, 08:52 AM
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QUOTE (neo56 @ Jan 9 2021, 09:15 PM) *
Wonderful work Olivier and Damia!
Before moving on the MastCam Left panorama, I wanted to finish a colorized version of a NavCam mosaic taken on sol 2979. Here it is:

Thanks a lot Thomas : it's as if we were here smile.gif
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climber
post Jan 11 2021, 12:17 PM
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Thanks for the 3 french interpreters!...and the others too laugh.gif
I agree Damia, this site is at least very aesthetic


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PaulH51
post Jan 12 2021, 08:32 AM
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The mission update that covered sols 2996-2998 refers to a drive back to the strategic route and onwards to the sulfate unit on sol 2998.

From the set of engineering images returned by the rover on sol 2998, it would appear the drive was either cancelled or failed to execute. I didn't find a 'fhaz00190' which is indicative of an aborted drive, so it may have been cancelled. The sol 2998 engineering images show the robotic arm is still extended with the turret horizontal, and the MAHLI camera pointing towards the rover. So I'm guessing that there may have been either an arm fault during stowage, or possibly a MAHLI lens cap issue that they want to check out before they continue. A new mission update should follow soon smile.gif

EDIT: The flight software detected a small but unexpected movement when un-stowing the arm, so it stopped and called home... Link
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PaulH51
post Jan 14 2021, 04:10 AM
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I'm still mourning the loss of the 'traverse map' and their insets with the 1 meter contour lines. Doesn't look like it's coming back, so I'm looking for another way of visualising the amount of elevation change after each drive.

We have xyz data in the JSON files for the images. X and Z appear to be encoded pointing data, if my assumption is correct then Y may be elevation?

Does anyone know of a simple way of converting the encoded Y value into either an elevation, a change in elevation since landing? Or even a change in elevation compared to the current 'site'?

The new interactive map allows users to export a GeoJSON file for the current sol, it provides the coordinates... eg sol 2995 = 137.398459, -4.734068, and a whole bunch of other useful data, but it does not report elevation.

I did not post this on the maps thread to keep the signal to noise ratio of that thread at a respectful level
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fredk
post Yesterday, 01:52 AM
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QUOTE (PaulH51 @ Jan 14 2021, 05:10 AM) *
We have xyz data in the JSON files for the images. X and Z appear to be encoded pointing data, if my assumption is correct then Y may be elevation?

I guess you mean the rover_xyz field in the v2 json files? I would guess that those are the local level (LL) frame coordinates (in metres) relative to the current site origin. For the LL frame +x is north, +y is east, and +z is to nadir. So the third component should be the vertical coordinate you're looking for.
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PaulH51
post Yesterday, 03:32 AM
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QUOTE (fredk @ Jan 15 2021, 09:52 AM) *
I guess you mean the rover_xyz field in the v2 json files? I would guess that those are the local level (LL) frame coordinates (in metres) relative to the current site origin. For the LL frame +x is north, +y is east, and +z is to nadir. So the third component should be the vertical coordinate you're looking for.

Many thanks Fredk: Yes, it's the rover xyz field. I'll see if I can find the elevation of the LL for "site_index": 84 smile.gif

Here is the roughly assembled R-NavCam for sol 3000. Looks like a good drive smile.gif Hope it help narrow down the location until a better stitch is posted.
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EDIT: Just realised I missed a couple of top tiers sad.gif
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Phil Stooke
post Yesterday, 07:26 AM
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Good enough for a rough location, Paul - we are here (final map will follow in the proper place)

Phil

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jvandriel
post Yesterday, 12:56 PM
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The NAVcam R view on Sol 3000.

Jan van Driel

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fredk
post Yesterday, 06:34 PM
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QUOTE (PaulH51 @ Jan 15 2021, 04:32 AM) *
I'll see if I can find the elevation of the LL for "site_index": 84 smile.gif

There's also the locations.xml file (currently over 15MB). That lists x,y,z coordinates and x,y appear to be relative to landing, but unfortunately z appears to be relative to the current site. That file also includes lat,long and coordinates called mapPixelH,mapPixelV, though it's not clear what map those relate to.

I guess you could accumulate the z increments since landing, but that would probably also accumulate large errors.
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Phil Stooke
post Yesterday, 10:24 PM
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Here is Jan's panorama in circular format.

Phil

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mcaplinger
post Yesterday, 11:47 PM
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Rover position in any reference frame you want can be computed from the SPICE kernels at https://naif.jpl.nasa.gov/pub/naif/MSL/kernels/spk/


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Disclaimer: This post is based on public information only. Any opinions are my own.
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