MSL at Rocknest, First scoop samples - sols 57-101 |
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MSL at Rocknest, First scoop samples - sols 57-101 |
 Nov 4 2012, 01:34 AM
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#376
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 Member  Group: Members Posts: 618 Joined: 13-February 10 From: Vancouver, British Columbia Member No.: 5221  |
It's just cosmetic; as long as the main structure is intact they're not gonna impact driving, very much. This is a heavy rover; it stands to reason that even small rocks will leave dents.
-------------------- To a body of infinite size there can be ascribed neither centre nor boundary... Thus the Earth no more than any other world is at the centre. -Giordano Bruno, 1584.
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Nov 4 2012, 04:49 AM
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#377
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 Senior Member Group: Members Posts: 2736 Joined: 17-January 05 Member No.: 152 |
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Nov 4 2012, 04:50 AM
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#378
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 Administrator Group: Chairman Posts: 13229 Joined: 8-February 04 Member No.: 1 |
QUOTE (abalone @ Nov 3 2012, 04:01 PM)  will the wheels fall off before then??? No - they will be absolutely fine. They'll be dented and dinged and have holes in them...and they're carry on working just fine. |
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Nov 4 2012, 11:28 PM
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#379
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 Member Group: Members Posts: 130 Joined: 23-October 12 From: Russia Member No.: 6725 |
Interesting finding. This is a new bright objects?
http://mars.jpl.nasa.gov/msl-raw-images/ms...0000E2_DXXX.jpg
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-------------------- Thank NASA and the American people for Curiosity
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Nov 5 2012, 02:55 AM
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#380
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 Senior Member Group: Admin Posts: 2418 Joined: 21-December 05 From: Canberra, Australia Member No.: 615 |
The mission team has said that it is likely that they will find more flotsam from the rover and EDL event.
Not inconceivable that these are more of the same. The entire surface is amazing of course, not just the bright bits 
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Nov 5 2012, 05:51 AM
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#381
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Member Group: Members Posts: 130 Joined: 23-October 12 From: Russia Member No.: 6725 |
Colored ChemCam
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-------------------- Thank NASA and the American people for Curiosity
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Nov 5 2012, 11:20 AM
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#382
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 Member Group: Members Posts: 485 Joined: 19-February 05 From: France, close to Paris (& 5mn drive from Meudon Observatory) Member No.: 172 |
When you look carefully at some sky images taken on Sol 86, some bright pixels are visible...
Any ideas by some astronomers on the Forum ? Stars ? Planets ? "Schmurtzes" ?... http://mars.jpl.nasa.gov/msl-raw-images/ms...0000C0_DXXX.jpg
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Nov 5 2012, 12:19 PM
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#383
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 Member Group: Members Posts: 964 Joined: 26-July 08 Member No.: 4270 |
Hot pixels...?
-------------------- -- Hungry4info (Sirius_Alpha)
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Nov 5 2012, 12:51 PM
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#384
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Junior Member Group: Members Posts: 53 Joined: 29-August 12 Member No.: 6622 |
QUOTE (Zelenyikot @ Nov 5 2012, 12:51 AM) Colored ChemCam Very nice, looks like olivine in the third one. |
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Nov 5 2012, 01:23 PM
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#385
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Junior Member Group: Members Posts: 53 Joined: 29-August 12 Member No.: 6622 |
QUOTE (vikingmars @ Nov 5 2012, 06:20 AM) When you look carefully at some sky images taken on Sol 86, some bright pixels are visible... Any ideas by some astronomers on the Forum ? Stars ? Planets ? "Schmurtzes" ?... http://mars.jpl.nasa.gov/msl-raw-images/ms...0000C0_DXXX.jpg
Looks like a pan of the sky at five o'clock at night and they appear to be in the same place on different photos. |
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Nov 5 2012, 02:09 PM
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#386
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Member Group: Members Posts: 567 Joined: 4-September 06 From: Boston Member No.: 1102 |
Image chip pixels can fail in at least two ways-- including go black or go white. So you can have black or white "Schmurtzes"
-------------------- Floyd
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Nov 5 2012, 02:22 PM
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#387
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 Martian Photographer Group: Members Posts: 235 Joined: 3-March 05 Member No.: 183 |
A cosmetic blemish visible in a flat image need not be a pixel that has "failed". I haven't looked in detail at the stuff on the detector (schmutz)--some may be only partially opaque, and thus correctable. Hungry4info is right about the bright spots--they are mostly hot pixels. There could be some cosmic- (or RTG-) rays, but I didn't see any obvious ones. Hot pixels may be unrecoverable, when the generate signal so fast that they saturate almost any useful exposure. But most are fine, just something to calibrate. And most of the ones shown get lost in images of high-entropy scenes.
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Nov 5 2012, 04:46 PM
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#388
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Member Group: Members Posts: 130 Joined: 23-October 12 From: Russia Member No.: 6725 |
Color from the raw Mast camera images. Perhaps too much green.
-------------------- Thank NASA and the American people for Curiosity
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Nov 5 2012, 04:53 PM
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#389
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 Bloggette par Excellence Group: Admin Posts: 3959 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
Also, watch out for the optical illusion that a gray material will look green when surrounded by a red material. I checked the RGB values of that "green" material and it's actually brown or orange (R and G roughly equal but R always greater than G, much lower blue), it just looks green by comparison to the bright red dust. I would not recommend attempting to determine mineralogy from Mastcam photos. You can tell dust-covered surfaces (red) from less dusty surfaces (gray, blue, or green-looking), and you should be surprised by stuff that looks white. Some rocks appear to have different colors when compared to each other, but that's about as far as I'd go in interpreting color. I would certainly not guess at mineralogy.
Zelenyikot: nice work! -------------------- |
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Nov 5 2012, 07:17 PM
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#390
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Junior Member Group: Members Posts: 53 Joined: 29-August 12 Member No.: 6622 |
Zelenyikot
yes but ChemCam doesn't do color. You just make it look like it does. So the amount of green depended on you're method which would reflect on the reason for making it, which just so happens to fill a void . So do you think it's olivine? |
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