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Rev 164: Apr 5-23, 2012 - Enceladus E18, Tethys
jasedm
post Apr 16 2012, 06:31 AM
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A little belatedly (to post here- the article's been up for a week or two), looking ahead for this revolution (now half complete) here

WAC enceladus from 185km - great detail!

Some shots of tethys too - some are very smeared - spacecraft slewing during shuttering perhaps??

Also some enceladan plumes

Great stuff!
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machi
post Apr 16 2012, 08:53 PM
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If distance to the terrain in those images is really 185 km, then ~11 m/pix for WAC image and ~1.1 m/pix for NAC image. So theoretically smallest visible details could be only 2.2 meters wide, but realistically, after some processing and for raw file, my guess is, that details (with high contrast) with size about 6 to 12 meters could be recognizable (some boulders, I presume).
Which is not bad result, maybe it's even record for Enceladus. If my memory is right, then best image to date had resolution ~4 m/pix (and this image was smeared too, but not so badly), so details around 8 to 10 meters were recognizable.


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- jasedm   Rev 164: Apr 5-23, 2012 - Enceladus E18, Tethys   Apr 16 2012, 06:31 AM
- - jasedm   Worth posting that Enceladus image here. Image rot...   Apr 16 2012, 07:24 AM
- - Phil Stooke   Great picture! Here I have brought out more d...   Apr 16 2012, 11:39 AM
- - Bjorn Jonsson   QUOTE (jasedm @ Apr 16 2012, 06:31 AM) So...   Apr 16 2012, 11:53 AM
- - Phil Stooke   The WAC image taken from the same distance is a na...   Apr 16 2012, 01:34 PM
- - jasedm   Thanks Bjorn - that would make sense re: the smear...   Apr 16 2012, 01:46 PM
- - Phil Stooke   ... except that the shadows are not black, as my i...   Apr 16 2012, 04:13 PM
|- - jasedm   QUOTE (Phil Stooke @ Apr 16 2012, 05:13 P...   Apr 16 2012, 06:22 PM
- - volcanopele   The nac isn't completely black. You can make ...   Apr 16 2012, 04:59 PM
- - Stu   After a bit of a play about...   Apr 16 2012, 05:41 PM
- - machi   This is simple gif, which gives basic clue, what c...   Apr 16 2012, 06:51 PM
- - Phil Stooke   Nice! Yes, more detail from the raw data, of ...   Apr 16 2012, 07:20 PM
- - Hungry4info   Wow, what's the resolution of that NAC image? ...   Apr 16 2012, 08:37 PM
- - machi   If distance to the terrain in those images is real...   Apr 16 2012, 08:53 PM
- - Phil Stooke   Hey, Hungry - wow, first time I've noticed tho...   Apr 16 2012, 09:04 PM
- - Stu   One particularly long groove visible here I think....   Apr 16 2012, 09:26 PM
- - Ian R   A nice shot of Odysseus:   Apr 16 2012, 10:23 PM
- - Ian R   This color shot of Odysseus is composed from Clear...   Apr 16 2012, 10:43 PM
- - eoincampbell   Fantastic work guys, that shot of Odysseus is a r...   Apr 17 2012, 12:45 AM
- - Juramike   Interesting. Not all of them are perfectly parall...   Apr 17 2012, 01:04 AM
- - jasedm   Tethys gets more and more interesting - below, a c...   Apr 17 2012, 09:49 AM
- - antipode   The internal fractures on the floor of Odysseus ar...   Apr 17 2012, 01:02 PM
|- - tedstryk   I did a quick and dirty desmear job on the Encelad...   Apr 17 2012, 03:47 PM
- - Astro0   A bit of Enceladus animation   Apr 18 2012, 11:01 PM
|- - ugordan   Titan on April 20, NAC RGB:   Apr 22 2012, 09:39 AM
- - Juramike   Rhea and Tethys on April 20, 2012:   Apr 26 2012, 02:12 AM


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