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MSL - Astronomical Observations, Phobos/Deimos, planetary/celestial observations and more
fredk
post Jun 29 2013, 05:25 PM
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What's rising?
http://mars.jpl.nasa.gov/msl-raw-images/pr...NCAM00545M_.JPG
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Zelenyikot
post Jun 29 2013, 05:37 PM
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Phobos in martian sky
http://www.youtube.com/watch?v=9QaQ6TCWq-0


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iMPREPREX
post Jun 29 2013, 07:05 PM
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QUOTE (Zelenyikot @ Jun 29 2013, 12:37 PM) *

That's awesome. I was wondering what that was! On my take of it, I enhanced the contrast and a haze can be seen. Is that indeed the atmosphere?


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Zelenyikot
post Jun 29 2013, 07:41 PM
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QUOTE (fredk @ Jun 29 2013, 06:25 PM) *


That line may it be a spacecraft?
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djellison
post Jun 29 2013, 11:59 PM
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That's a cosmic ray hit.
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Greenish
post Jul 1 2013, 05:36 PM
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QUOTE (iMPREPREX @ Jun 29 2013, 03:05 PM) *
That's awesome. I was wondering what that was! On my take of it, I enhanced the contrast and a haze can be seen. Is that indeed the atmosphere?


I subtracted the median of all frames and enhanced the contrast. I don't know enough to interpret it for sure, but it sure looks like very well defined clouds drifting by.

http://www.youtube.com/watch?v=AFa27WtnFHI

(if you watch in HD it has the full resolution of the original 511x511 images, although there are some compression artifacts).
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Gerald
post Aug 3 2013, 12:09 AM
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Sol 351 Mastcam Right thumbnail time-lapse (magnified from 64x64 to 128x128):

Deimos or Phobos?
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Zelenyikot
post Aug 3 2013, 12:22 AM
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QUOTE (Gerald @ Aug 3 2013, 01:09 AM) *
Deimos or Phobos?

Transit of Phobos across Deimos


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Gerald
post Aug 3 2013, 01:04 AM
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Thank you very much, Zelenyikot!
The enhanced two-image gif
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(based on NASA/JPL-Caltech/MSSS) makes things more obvious.
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iMPREPREX
post Aug 3 2013, 10:34 AM
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Wow! A few full resolution images of Deimos and Phobos have come in. Here's my take at taking out the noise and leaving the moons. blink.gif

Edited to add two more: a Mastcam 34 shot and a MastCam 100 shot of Phobos.
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wildespace
post Aug 3 2013, 11:23 AM
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I think I'm seeing the large Stickney crater, and possibly Reldresal crater too. What Phobos features can you see here?

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iMPREPREX
post Aug 3 2013, 11:32 AM
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That most certainly, to me, looks like the Stickney crater. Man, that's awesome. Good looking out. smile.gif
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wildespace
post Aug 3 2013, 12:23 PM
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Here's a Stellarium screenshot, set for the place, time, and the approximate field of view of the Mastcam shot. Some of the brighter stars are indicated, I wonder if image-processing wizards here can bring them out in the Mastcam shots. smile.gif

Attached Image

http://www.pictureshack.us/images/87310_phobosdeimos2.jpg

Also of interest may be the saturation-enhanced closeup of Phobos. I wonder is these colours are due to how Mastcam processed the image, or are they the real subtle colour variations of the surface.

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Phil Stooke
post Aug 3 2013, 12:59 PM
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Sorry folks, I think you have your Phobos geography all tangled up. The clearly visible crater is Hall at the south pole, north is at left, Stickney is at the bottom, essentially invisible because the sun is shining straight into it. I will post a comparison image later when I can get to it. (turn that Viking image 180 degrees for an idea of what you're seeing, except the illumination is different)

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iMPREPREX
post Aug 3 2013, 01:09 PM
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I trust and believe your words, Phil. But to me it did look like it could be Stickney in the image. I'm looking forward to seeing the comparison image because I couldn't find anything on Google. smile.gif


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