Updated Titan Map |
Updated Titan Map |
Dec 29 2006, 12:18 AM
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#46
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Senior Member Group: Members Posts: 1276 Joined: 25-November 04 Member No.: 114 |
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. |
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Dec 29 2006, 05:51 PM
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#47
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Senior Member Group: Moderator Posts: 3242 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
-------------------- &@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io |
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Guest_AlexBlackwell_* |
Dec 29 2006, 05:55 PM
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#48
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Guests |
You've gotta be kidding. This is what all the fuss was about?
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Dec 29 2006, 06:56 PM
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#49
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Senior Member Group: Members Posts: 2530 Joined: 20-April 05 Member No.: 321 |
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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Dec 29 2006, 07:33 PM
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#50
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Junior Member Group: Members Posts: 73 Joined: 14-June 05 From: Cambridge, MA Member No.: 411 |
I'm happy to have it, too.
-John Sheff Cambridge, MA |
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Dec 29 2006, 07:40 PM
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#51
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The Poet Dude Group: Moderator Posts: 5551 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
Ahhh, how soon we forget...
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. -------------------- |
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Dec 29 2006, 07:49 PM
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#52
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Senior Member Group: Moderator Posts: 3242 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
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.
-------------------- &@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io |
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Dec 29 2006, 08:08 PM
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#53
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Senior Member Group: Members Posts: 1276 Joined: 25-November 04 Member No.: 114 |
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! PS Great PDF!!!! |
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Dec 29 2006, 08:14 PM
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#54
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Senior Member Group: Moderator Posts: 3242 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
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.
-------------------- &@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io |
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Dec 29 2006, 08:43 PM
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#55
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Senior Member Group: Members Posts: 3648 Joined: 1-October 05 From: Croatia Member No.: 523 |
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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Dec 29 2006, 08:46 PM
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#56
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Senior Member Group: Moderator Posts: 3242 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
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.
-------------------- &@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io |
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Dec 29 2006, 10:18 PM
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#57
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Senior Member Group: Members Posts: 2488 Joined: 17-April 05 From: Glasgow, Scotland, UK Member No.: 239 |
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 -------------------- Remember: Time Flies like the wind - but Fruit Flies like bananas!
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Dec 29 2006, 11:09 PM
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#58
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Special Cookie Group: Members Posts: 2168 Joined: 6-April 05 From: Sintra | Portugal Member No.: 228 |
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! -------------------- "Ride, boldly ride," The shade replied, "If you seek for Eldorado!"
Edgar Alan Poe |
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Dec 30 2006, 12:38 AM
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#59
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Senior Member Group: Members Posts: 1276 Joined: 25-November 04 Member No.: 114 |
LOL
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Dec 30 2006, 01:36 AM
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#60
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Merciless Robot Group: Admin Posts: 8785 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
I for one would love to see a surface temp overlay on all these features (yep...cryovolcano seeker here! )
-------------------- 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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