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Updated Titan Map
Decepticon
post Dec 29 2006, 12:18 AM
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tuvas, from what you saw is the Titan map gonna blow last the last map out of the water?

I'm trying to get a feel for what to expect. biggrin.gif
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volcanopele
post Dec 29 2006, 05:51 PM
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Happy now?



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Guest_AlexBlackwell_*
post Dec 29 2006, 05:55 PM
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Guests






You've gotta be kidding. This is what all the fuss was about?
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JRehling
post Dec 29 2006, 06:56 PM
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Boy, Alex is underwhelmed.

I'm glad to see it. I do find some of the seams surprising since they are "texture" seams, with shading captured pretty well. It seems like sometimes limited resolution was rendered hazily and sometimes it was rendered with an almost half-tone-looking grainy -- but sharp -- quality.


We're basically four good flybys away from bringing most of the "Here There Be Dragons" areas up to the standard of the rest of it: Two over Senkyo and Belet and two over the northern areas when the extended mission puts them into daylight.

Now let's add a splash of VIMS color and see if there's a graceful way to use RADAR data to sharpen up portions of the map without miscasting the RADAR data as being equivalent to IR (which it isn't).
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jsheff
post Dec 29 2006, 07:33 PM
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I'm happy to have it, too.


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Stu
post Dec 29 2006, 07:40 PM
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Ahhh, how soon we forget... rolleyes.gif

A couple of years ago Titan was just an orange-tinted spark next to Saturn in my telescope eyepiece on clear nights. I knew it was a world, because Voyager had sent back those images showing it as a murky orange ball, fuzzy atmosphere and all, but that was all anyone knew really. Now we have a picture of its surface, and, wonder of wonders, an actual map, showing it has landscapes and topography beyond our wildest dreams. I'm sure that map will get much, much better as time goes by, but for now I'm happy to have any map at all. Good work guys, thanks. smile.gif


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volcanopele
post Dec 29 2006, 07:49 PM
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For those who want a combined ISS map and RADAR swath (up to T8) Photoshop file, check out: http://pirlwww.lpl.arizona.edu/~perry/Tita...map.release.psd. I was going to include a VIMS map from T8 and T9, but that ballooned the file to over 164 MB, almost 5 times its current 35 MB size.


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Decepticon
post Dec 29 2006, 08:08 PM
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QUOTE
Happy now?


Ummm yes and no! I expected something a little more cleaned up.

I'm not bashing your work, I thought it would be a little more cleaned up.


Anyways gives all the Photoshop artist and chance to have some fun!



Thanks VP! biggrin.gif


PS Great PDF!!!!
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volcanopele
post Dec 29 2006, 08:14 PM
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Well, I'm still work on smoothing techniques across multiple data sets. I'll admit this one was more of a case of needing to get something out since we haven't had a released map update since January of last year. Unfortunately that's about as cleaned up as I could get it without using destructive low pass filters. The data is already a bit blurry, I see no point in making it worse.


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ugordan
post Dec 29 2006, 08:43 PM
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I for one am not underwhelmed by the update as I realized any update couldn't bring much greater resolution than what was already available at Shangri-La. This is probably as high a resolution as we'll get from ISS. One must always keep the expectations reasonable. That's one of the reasons the overdue release delay bothered me, though. That said, I do find the Fensal-Aztlan region to be better defined than Shangri-La. As JRehling said, it appears less grainy. Weren't the pixel scales for the mosaics comparable? Is this a result of different camera parameters / filter combos as the Fensal region looks well defined, albeit including those texture seams? Am I right in assuming you didn't use every flyby that provided repeated coverage (over Fensal), for improved S/N ratio and reduced seaming?


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volcanopele
post Dec 29 2006, 08:46 PM
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The mosaics used in the Fensal-Aztlan region have a higher pixel scale than those used in the Shangri-la region. Maps incorporating Ta and Tb REGMAP and HIRES should be available in a future release.


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Bob Shaw
post Dec 29 2006, 10:18 PM
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Well, I for one am far from underwhelmed. A couple of years back, even seeing the 'H' in those early Earth-based images - remember? - seemed beyond belief. Now we're seeing so much more, and with the promise of more to come!

I can wait!

Bob Shaw


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ustrax
post Dec 29 2006, 11:09 PM
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QUOTE (Bob Shaw @ Dec 29 2006, 10:18 PM) *
Well, I for one am far from underwhelmed. A couple of years back, even seeing the 'H' in those early Earth-based images - remember? - seemed beyond belief. Now we're seeing so much more, and with the promise of more to come!

I can wait!

Bob Shaw


Bob is back!
Bob is raw!
Here's an "HURRAH!" for Bob,
the Shaw! biggrin.gif


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Decepticon
post Dec 30 2006, 12:38 AM
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biggrin.gif laugh.gif LOL
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nprev
post Dec 30 2006, 01:36 AM
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I for one would love to see a surface temp overlay on all these features (yep...cryovolcano seeker here! smile.gif )


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A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
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