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Rosetta Mars
ugordan
post Jan 21 2012, 02:42 PM
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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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machi
post Jan 21 2012, 02:50 PM
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QUOTE (machi @ Jan 21 2012, 03:31 PM) *
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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john_s
post Jan 21 2012, 05:24 PM
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QUOTE (ugordan @ Jan 21 2012, 07:42 AM) *
Thanks, machi. Here's another one with Phobos:


I love the details in the clouds along the northern terminator in that one...

John
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Phil Stooke
post Jan 21 2012, 06:01 PM
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Yes, the clouds are exquisite! Good work everybody.

Phil



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tedstryk
post Jan 21 2012, 09:58 PM
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Here is a pretty one.

Attached Image


Also, the Phobos images are conjuring memories of 1969.

Attached Image


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Phil Stooke
post Jan 21 2012, 11:30 PM
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Very nice, Ted, as usual... but flipped E-W (as you probably knew)

Phil



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Stu
post Jan 22 2012, 12:02 AM
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Bit late to the party...

Attached Image


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tedstryk
post Jan 22 2012, 01:00 AM
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QUOTE (Phil Stooke @ Jan 21 2012, 11:30 PM) *
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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djellison
post Jan 22 2012, 03:48 AM
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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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elakdawalla
post Jan 23 2012, 11:48 PM
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I'm using IMG2PNG, and getting nice results. What do you mean by full pixels?

Here's my take on the inbound global shot.
Attached thumbnail(s)
Attached Image
 


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djellison
post Jan 23 2012, 11:51 PM
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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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elakdawalla
post Jan 23 2012, 11:56 PM
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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 smile.gif I'm pretty sure he modified it when the Steins data came out.


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djellison
post Jan 24 2012, 12:51 AM
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I'll have another hack it it tonight, see what happens.
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Bjorn Jonsson
post Jan 24 2012, 01:25 AM
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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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djellison
post Jan 24 2012, 01:32 AM
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AHHhh - I was using Level 3. I'll try again with l2 tonight.

D
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