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InSight Surface Operations, 26 Nov 2018-
marsophile
post Dec 2 2018, 01:09 AM
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https://mars.nasa.gov/insight-raw-images/su...0000_0545M_.PNG

This image from the IDC camera is more obscured than from the other cameras. Is the dust cover still on for this one? Is the lens cloudy?

Note the rainbow-like artifact on the left side of the image, and a bright disc-like artifact near the center.
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Floyd
post Dec 2 2018, 01:15 AM
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Having the Sun in the corner of the frame often does bad things...


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mcaplinger
post Dec 2 2018, 01:22 AM
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QUOTE (marsophile @ Dec 1 2018, 05:09 PM) *
This image from the IDC camera is more obscured than from the other cameras.

There are only two cameras, ICC and IDC. This is an image with the sun near the FOV. I assumed they moved the arm and this is the sky.

I'm not sure if the IDC had a cover (website says there is one, but I'm not sure if that's true) or if it's been removed.

https://www.hou.usra.edu/meetings/lpsc2018/pdf/2764.pdf


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Disclaimer: This post is based on public information only. Any opinions are my own.
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Steve G
post Dec 2 2018, 01:41 AM
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Great work! The equirectangular projection really helps to characterize the landing site. Definitely looks like it lander close to a good sized impact crater with ejecta around the crater rim.
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fredk
post Dec 2 2018, 01:59 AM
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Phil-o-vision, 3x vertical, of Ant's reprojection:
Attached Image
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MahFL
post Dec 2 2018, 02:28 AM
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QUOTE (Ant103 @ Dec 1 2018, 11:25 PM) *
I did a little something on the last ICC image. Yet dusty but I hope it'll get better in the next few weeks smile.gif
In equirectangular projection, I think we can have a clearer view of a part of the landing site.


That is truly awesome work.
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ronatu
post Dec 2 2018, 03:13 AM
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Attached Image


Mars....
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PaulH51
post Dec 2 2018, 09:02 AM
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QUOTE (mcaplinger @ Dec 2 2018, 09:22 AM) *
There are only two cameras, ICC and IDC. This is an image with the sun near the FOV. I assumed they moved the arm and this is the sky.

https://www.hou.usra.edu/meetings/lpsc2018/pdf/2764.pdf

Does anyone have Figure 2 & Figure 3 from that PDF in larger format? They would all be nice to have, especially 2c for sizing pebbles etc near the lander smile.gif
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djellison
post Dec 2 2018, 03:20 PM
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The IDC moves. That range data would only be valid for that pose, pointed at that terrain in the test bed.
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fredk
post Dec 2 2018, 05:30 PM
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QUOTE (PaulH51 @ Dec 2 2018, 10:02 AM) *
Does anyone have Figure 2 & Figure 3 from that PDF in larger format? They would all be nice to have, especially 2c for sizing pebbles etc near the lander

You could get rough pebble sizes from Fig 3, knowing the sizes of SEIS and the cable, and assuming level ground and lander in test bed and on Mars.
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Ant103
post Dec 2 2018, 07:21 PM
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QUOTE (mcaplinger @ Dec 2 2018, 02:22 AM) *
I'm not sure if the IDC had a cover (website says there is one, but I'm not sure if that's true) or if it's been removed.

https://www.hou.usra.edu/meetings/lpsc2018/pdf/2764.pdf


IDC is having a cover, as this image seems to show. I guess…

Attached Image



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PDP8E
post Dec 3 2018, 02:17 AM
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I cleaned up all the fisheye 'lens cover' images and then the 'cover removed' images and put them in a gif

Attached Image


observations and impressions:
* the 'grayed out section' in the lower left was to get rid of a 'residual arm shadow' (that moved between images) and made the ground to left look like a rock(!)
* the 'big rock' has a very circular pattern on top (multiple?) that looks to these aging eyes that it was cleaned off by a blast from a propulsion nozzle
* there appears to an engine blast pattern to the left of the big rock
* there appears to be 'straight lines' leading up to the right side landing pad, left to right, at an angle that parallels the outboard strut ... blast patterns or skid marks(?)
* the whole left side of the image appears to be 'cleaned out' of pebbles and small rocks, as opposed the right side of the image (blast effect? or just plain old luck?)

as always, your mileage may vary...

Cheers!


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CLA CLL
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JRehling
post Dec 3 2018, 03:03 AM
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QUOTE (mcaplinger @ Dec 1 2018, 02:30 PM) *
If you say that something weighs X kilograms, you really mean that it has a mass of X kilograms. I've never heard anyone in aerospace try to use some other verb than weigh in this context. Using "mass" as a verb ala Heinlein has never caught on.


That's how I've interpreted it when hardware is discussed. The sentence that caught my eye was "InSight's robotic arm also has a bucket with a capacity of roughly 500 g of soil." Since soil isn't hardware, it seemed ambiguous to me whether that indicated soil that would weigh 500 g on Earth or whether the arm can lift 500 g of soil, which on Mars will be more like 1250 g (if it were weighed on Earth). [It's moreover ambiguous whether weight or volume is the actual bottleneck.]

I guess to be consistent, the mass is what one should use for samples, too.
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Phil Stooke
post Dec 3 2018, 04:59 AM
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Because 'weight' is ambiguous - might refer to Earth or Mars - the planet has to be specified whenever it is used. If it's not specified, assume mass is intended.

Phil


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... because the Solar System ain't gonna map itself.
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serpens
post Dec 3 2018, 06:25 AM
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Mass is a constant. Weight is a locational variable.
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