Spirit retrospective, - a few details from my current project |
Spirit retrospective, - a few details from my current project |
Jun 11 2012, 11:18 PM
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#46
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Junior Member Group: Members Posts: 57 Joined: 22-March 09 From: West Hartford, Connecicut Member No.: 4691 |
Amazing even if it is ugly
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Jun 12 2012, 05:11 AM
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#47
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Senior Member Group: Admin Posts: 3108 Joined: 21-December 05 From: Canberra, Australia Member No.: 615 |
Just a little side note...
Today would have marked Spirit's 3000th Sol on Mars had she still been operational |
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Jul 9 2012, 10:55 PM
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#48
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Senior Member Group: Members Posts: 4256 Joined: 17-January 05 Member No.: 152 |
We also got Andromeda--it was barely detectable in the largest practical exposures. 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: 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: Extragalactic imaging from Mars! |
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Jul 9 2012, 11:45 PM
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#49
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Solar System Cartographer Group: Members Posts: 10229 Joined: 5-April 05 From: Canada Member No.: 227 |
It's not my thread! It belongs to all of us. Thanks for this - very nice.
Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PDF: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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Jul 11 2012, 04:33 AM
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#50
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Senior Member Group: Members Posts: 2228 Joined: 1-December 04 From: Marble Falls, Texas, USA Member No.: 116 |
Yes, very nice work, Fred. Thanks.
-------------------- ...Tom
I'm not a Space Fan, I'm a Space Exploration Enthusiast. |
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Mar 8 2013, 10:34 PM
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#51
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Solar System Cartographer Group: Members Posts: 10229 Joined: 5-April 05 From: Canada Member No.: 227 |
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.
spirit_activities_by_sol.txt ( 104.38K ) Number of downloads: 485 Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PDF: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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Mar 22 2013, 12:37 PM
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#52
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Senior Member Group: Members Posts: 1089 Joined: 19-February 05 From: Close to Meudon Observatory in France Member No.: 172 |
Thanks a lot Phil : yes very useful. I'll compare it with my own log
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Jun 24 2013, 07:40 PM
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#53
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Solar System Cartographer Group: Members Posts: 10229 Joined: 5-April 05 From: Canada Member No.: 227 |
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 -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PDF: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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Jun 24 2013, 10:47 PM
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#54
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Senior Member Group: Admin Posts: 4763 Joined: 15-March 05 From: Glendale, AZ Member No.: 197 |
Amazing Phil. Never would have thought you could do this with MER photos.
-------------------- If Occam had heard my theory, things would be very different now.
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Jun 25 2013, 03:58 AM
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#55
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Member Group: Members Posts: 808 Joined: 10-October 06 From: Maynard Mass USA Member No.: 1241 |
Phil, that is incredible!, thanks
-------------------- CLA CLL
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Jun 25 2013, 06:19 PM
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#56
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Senior Member Group: Members Posts: 1089 Joined: 19-February 05 From: Close to Meudon Observatory in France Member No.: 172 |
.../... 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 ! Thanks a lot for sharing this fantastic image with us. Now, just imagine what we could do with the Mastcam 100... |
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Jun 25 2013, 11:33 PM
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#57
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Member Group: Admin Posts: 976 Joined: 29-September 06 From: Pasadena, CA - USA Member No.: 1200 |
wow, just wow. I can't imagine what Phil would do as a rover driver!
Paolo -------------------- 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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Jun 26 2013, 12:01 AM
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#58
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Founder Group: Chairman Posts: 14434 Joined: 8-February 04 Member No.: 1 |
I have concerns over what he might attempt with respect to +Z motion
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Jun 26 2013, 12:03 AM
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#59
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Member Group: Members Posts: 754 Joined: 9-February 07 Member No.: 1700 |
Gorgeous, Phil - it needs to be on the cover of a Mars novel
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Jun 26 2013, 12:04 AM
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#60
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Solar System Cartographer Group: Members Posts: 10229 Joined: 5-April 05 From: Canada Member No.: 227 |
You write it, I'll provide the cover art!
Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PDF: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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