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Spirit retrospective, - a few details from my current project
cbcnasa
post Jun 11 2012, 11:18 PM
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Amazing even if it is ugly smile.gif
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Astro0
post Jun 12 2012, 05:11 AM
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Just a little side note...

Today would have marked Spirit's 3000th Sol on Mars had she still been operational sad.gif smile.gif
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fredk
post Jul 9 2012, 10:55 PM
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QUOTE (Deimos @ Jul 6 2012, 03:07 PM) *
We also got Andromeda--it was barely detectable in the largest practical exposures.
QUOTE (Deimos @ Jul 7 2012, 05:19 PM) *
I believe it was A/1941, night time opacity field A (aka the "diffuse sensitivity test").

(I hope Phil doesn't mind me using his thread to do some Spirit retrospection - this definitely doesn't belong in the Oppy thread where those quotes come from.)

Thanks for digging that up, Deimos. "Barely detectable" is a good description! With some effort I was able to squeeze the Andromeda Galaxy/M31 out of the 1941 pics. If anyone wants to try this at home, here are the details: I used these two frames:
2P298641880EFFB1E5P2731L1M1.JPG (frame 1)
2P298642075EFFB1E5P2731L1M1.JPG (frame 2)
I added 256 to the frame 2 values, then subtracted frame 1. The result was stretched and smoothed. (Strangely, the PDS RAD images show less detail than the jpl jpegs.)

The result is that most of the frame averages to neutral grey. Any real object (eg a star) will appear as a lighter-than-neutral-grey streak adjacent to a darker streak, which stands out very well. I've identified M31 in this crop:
Attached Image

It's clearly fuzzier than the stars, and it is exactly where it should be, as you can see from this flicker gif comparing the difference image with a star chart:
Attached Image

Extragalactic imaging from Mars! pancam.gif
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Phil Stooke
post Jul 9 2012, 11:45 PM
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It's not my thread! It belongs to all of us. Thanks for this - very nice.

Phil



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... because the Solar System ain't gonna map itself.
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CosmicRocker
post Jul 11 2012, 04:33 AM
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Yes, very nice work, Fred. Thanks. smile.gif


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Phil Stooke
post Mar 8 2013, 10:34 PM
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Here's a text file containing descriptions of Spirit's activities for every sol of the mission. It is just the data from the PDS Analyst's Notebook mission summary, but in a different file format, in case anyone may find it useful.

Attached File  spirit_activities_by_sol.txt ( 104.38K ) Number of downloads: 119



Phil


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vikingmars
post Mar 22 2013, 12:37 PM
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Thanks a lot Phil : yes very useful. I'll compare it with my own log smile.gif
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Phil Stooke
post Jun 24 2013, 07:40 PM
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Looking back at our dear departed Spirit one more time...

This is an image of Phobos made by Spirit during the sol 675 eclipse ingress sequence. I collected six 16 bit frames from the PDS, stretched the contrast, enlarged each frame x3, sharpened it, stretched the contrast more for the part wholly on the disk, and combined them - in effect the super-resolution process. I don't recall seeing Stickney so clearly before from the surface.

Phil

Attached Image


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ElkGroveDan
post Jun 24 2013, 10:47 PM
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Amazing Phil. Never would have thought you could do this with MER photos.


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If Occam had heard my theory, things would be very different now.
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PDP8E
post Jun 25 2013, 03:58 AM
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Phil, that is incredible!, thanks


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vikingmars
post Jun 25 2013, 06:19 PM
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QUOTE (Phil Stooke @ Jun 24 2013, 09:40 PM) *
.../... I don't recall seeing Stickney so clearly before from the surface. Phil

WOW ! WOW ! WOW ! Phil you did a great "premiere" (as usual). Lots of congratulations !
pancam.gif pancam.gif pancam.gif pancam.gif pancam.gif
Thanks a lot for sharing this fantastic image with us. Now, just imagine what we could do with the Mastcam 100...
smile.gif
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RoverDriver
post Jun 25 2013, 11:33 PM
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wow, just wow. I can't imagine what Phil would do as a rover driver!

Paolo


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Disclaimer: all opinions, ideas and information included here are my own,and should not be intended to represent opinion or policy of my employer.
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djellison
post Jun 26 2013, 12:01 AM
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I have concerns over what he might attempt with respect to +Z motion smile.gif
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brellis
post Jun 26 2013, 12:03 AM
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Gorgeous, Phil - it needs to be on the cover of a Mars novel smile.gif
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Phil Stooke
post Jun 26 2013, 12:04 AM
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You write it, I'll provide the cover art!

Phil



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