Rosetta Mars |
Rosetta Mars |
Jan 21 2012, 02:42 PM
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#16
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Senior Member Group: Members Posts: 3648 Joined: 1-October 05 From: Croatia Member No.: 523 |
Thanks, machi. Here's another one with Phobos:
I like the quality of the NAC images. Too bad most of the stuff from Mars and Earth flyby 2 is overexposed and unusable. -------------------- |
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Jan 21 2012, 02:50 PM
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#17
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Member Group: Members Posts: 796 Joined: 27-February 08 From: Heart of Europe Member No.: 4057 |
I think, that it's similar situation as in case of the Stardust' Tempel 1 images. Mars and Earth data from Rosetta are not officially released... I was wrong, evidently Mars and Earth (two flybys) data are oficially released - http://pdssbn.astro.umd.edu/data_sb/missio...tta/index.shtml But still we must wait for data from the lander. -------------------- |
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Jan 21 2012, 05:24 PM
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#18
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Member Group: Members Posts: 699 Joined: 3-December 04 From: Boulder, Colorado, USA Member No.: 117 |
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Jan 21 2012, 06:01 PM
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#19
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Solar System Cartographer Group: Members Posts: 10157 Joined: 5-April 05 From: Canada Member No.: 227 |
Yes, the clouds are exquisite! Good work everybody.
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 PD: 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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Jan 21 2012, 09:58 PM
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#20
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Interplanetary Dumpster Diver Group: Admin Posts: 4404 Joined: 17-February 04 From: Powell, TN Member No.: 33 |
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Jan 21 2012, 11:30 PM
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#21
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Solar System Cartographer Group: Members Posts: 10157 Joined: 5-April 05 From: Canada Member No.: 227 |
Very nice, Ted, as usual... but flipped E-W (as you probably knew)
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 PD: 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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Jan 22 2012, 12:02 AM
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#22
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The Poet Dude Group: Moderator Posts: 5551 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
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Jan 22 2012, 01:00 AM
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#23
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Interplanetary Dumpster Diver Group: Admin Posts: 4404 Joined: 17-February 04 From: Powell, TN Member No.: 33 |
Very nice, Ted, as usual... but flipped E-W (as you probably knew) Phil I realized it when I saw it next to the Mariner-7 Phobos over Mars image. Oops. -------------------- |
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Jan 22 2012, 03:48 AM
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#24
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Founder Group: Chairman Posts: 14432 Joined: 8-February 04 Member No.: 1 |
Are we (apart from UG) using img2png? I'm getting a combo of very very dark moon images from the Earth flybys, but full pixels in some of the Mars images.
D |
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Jan 23 2012, 11:48 PM
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#25
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Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
I'm using IMG2PNG, and getting nice results. What do you mean by full pixels?
Here's my take on the inbound global shot. -------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
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Jan 23 2012, 11:51 PM
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#26
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Founder Group: Chairman Posts: 14432 Joined: 8-February 04 Member No.: 1 |
Saturated white pixels - meaning I can't make a shot like that one, as the polar cap is bleached out.
Did you just do img2png.exe *.img - or did you use any tags on the end? D |
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Jan 23 2012, 11:56 PM
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#27
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Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
Nope, just vanilla IMG2PNG, no switches at the command line. Have you downloaded a new version recently? Bjorn makes adjustments every time a new data set comes out that I can't open with IMG2PNG I'm pretty sure he modified it when the Steins data came out.
-------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
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Jan 24 2012, 12:51 AM
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#28
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Founder Group: Chairman Posts: 14432 Joined: 8-February 04 Member No.: 1 |
I'll have another hack it it tonight, see what happens.
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Jan 24 2012, 01:25 AM
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#29
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IMG to PNG GOD Group: Moderator Posts: 2250 Joined: 19-February 04 From: Near fire and ice Member No.: 38 |
I haven't modified IMG2PNG for Rosetta yet - actually I was waiting for the Mars flyby data to appear. The problem is probably that when converting the floating point (level 3) images, IMG2PNG 'knows' nothing about the data so it uses the actual data range to map the floating point values to 0-65535 (the mininum floating point value is usually set to ~0 though). This is bad if there are bright specks in the images and makes them dark. Another problem is that different filters (or more accurate - images) get stretched differently. I need to upgrade IMG2PNG to 'know' the Osiris data. I may do it this weekend or possibly earlier.
Interestingly, the Messenger data is somewhat comparable to the Osiris level 3 data since it contains floating point data. The important difference is that IMG2PNG should know how to handle the Messenger stuff. And by the way this is clearly a beautiful dataset - I get the impression that these are the best global views ever of Mars, at least if you only count framing cameras. |
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Jan 24 2012, 01:32 AM
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#30
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Founder Group: Chairman Posts: 14432 Joined: 8-February 04 Member No.: 1 |
AHHhh - I was using Level 3. I'll try again with l2 tonight.
D |
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