Updated Titan Map |
Updated Titan Map |
Nov 22 2006, 10:17 AM
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#16
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Senior Member Group: Members Posts: 1276 Joined: 25-November 04 Member No.: 114 |
I hope we get some color this time!
I can't wait to see a hybrid image/radar combination. |
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Nov 22 2006, 06:48 PM
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#17
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Senior Member Group: Members Posts: 2530 Joined: 20-April 05 Member No.: 321 |
I hope we get some color this time! I can't wait to see a hybrid image/radar combination. One way to do that would be to replace ISS data with RADAR where both are available, but the two are really different, and doing that would "hide" the nonredundant ISS data. Maybe the ideal all-Titan display would be to take the ISS as the base map, perform a primary-component analysis on the VIMS data to associate with VIMS the #1 most important dimension that is different than the ISS imagery, and then use RADAR as the third input channel. Then associate G and B to ISS and VIMS (in whichever order) and R to RADAR in an RGB map: where RADAR is not available, set red to some baseline --not zero. |
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Nov 22 2006, 09:11 PM
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#18
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Solar System Cartographer Group: Members Posts: 10229 Joined: 5-April 05 From: Canada Member No.: 227 |
Ingenious! But I think it might look like Grandma's wallpaper. I'd rather have separate maps of each dataset.
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 PDF: 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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Nov 22 2006, 10:47 PM
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#19
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Senior Member Group: Moderator Posts: 3242 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
for those with Photoshop, a map with different layers for each data set might be possible.
-------------------- &@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io |
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Nov 23 2006, 03:53 PM
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#20
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Senior Member Group: Members Posts: 1669 Joined: 5-March 05 From: Boulder, CO Member No.: 184 |
Greetings,
I think it might be interesting to try a map based on spatial filtering. In other words, larger scale details could be from ISS data and moderately finer details could be filled in with radar. VIMS could help perhaps in areas that ISS doesn't have coverage and vice versa? In any case, each dataset could fill in for those locations and spatial scales where they do best. Might be some effort, yet could provide a single more complete view. -------------------- Steve [ my home page and planetary maps page ]
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Nov 23 2006, 04:19 PM
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#21
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Senior Member Group: Members Posts: 3516 Joined: 4-November 05 From: North Wales Member No.: 542 |
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Dec 14 2006, 12:22 PM
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#22
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Member Group: Members Posts: 235 Joined: 2-August 05 Member No.: 451 |
The Ciclops page pointed to earlier was last updated in Early 2005. Have the more recent flybys covered new territory? Since we seem to be focusing mostly on Titan, it might be nice to get an updated composite image like that for every flyby. We have a new pass coming on December 27th. Can we get a nice new map in honour of Kepler's 435th birthday?
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Dec 14 2006, 01:30 PM
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#23
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Senior Member Group: Members Posts: 3648 Joined: 1-October 05 From: Croatia Member No.: 523 |
The official and updated Titan map was finished a while ago. It's obviously pending a release sometime soon (I'm really hoping by the end of the year, this hiatus has IMHO gone for long enough), maybe they're waiting for one of those significant dates to release. I'm thinking Christmas or the sorts. Probably updated maps of other icy sats as well.
-------------------- |
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Dec 19 2006, 08:23 PM
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#24
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Member Group: Members Posts: 363 Joined: 13-April 06 From: Malta Member No.: 741 |
Has someone got an explanation why Titans dark flat plains are along the equator??Dont think that is coincidental!
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Dec 19 2006, 08:26 PM
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#25
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Member Group: Members Posts: 428 Joined: 21-August 06 From: Northern Virginia Member No.: 1062 |
It sounds like what you guys want is a JMARS for Titan. Jmars allows one to get all of the latest images (It doesn't do MRO, yet...), and compare between several different missions. It would work well to compare VIMS/RADAR/ISS images, there'd just be a layer for the whole planet. Of course, Titan doesn't have the large number of images that Mars does, but...
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Dec 19 2006, 09:09 PM
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#26
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Junior Member Group: Members Posts: 64 Joined: 11-October 05 Member No.: 525 |
Has someone got an explanation why Titans dark flat plains are along the equator??Dont think that is coincidental! It could be probably due to tides of Saturns that trigger plate tectonic. They are strongest in equatorial region. So dark areas may be analogue of ocean floor on Earth. And Xanadu and Adiri - Titanian analogue of continents? |
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Dec 19 2006, 10:13 PM
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#27
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Junior Member Group: Members Posts: 40 Joined: 11-November 05 Member No.: 550 |
There was a time in Titan's earlier history when, apparently, it was subject to the same degree of tidal squeezing that Europa experiences today at Jupiter.
And thats a lot of tidal stress. |
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Dec 19 2006, 11:16 PM
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#28
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Senior Member Group: Members Posts: 2530 Joined: 20-April 05 Member No.: 321 |
Has someone got an explanation why Titans dark flat plains are along the equator??Dont think that is coincidental! Notice that Venus's rifts run primarily along the equator and that the Valles Marineris is roughly equatorial on Mars. With the exception of Ganymede and Callisto (which is surfacewise totally dead), all of the solid worlds in that size range have signs of equatorial tectonism. There's a compelling overlap to be made between Venus, Mars, and Titan. Xanadu = Tharsis? Hotei = Aphrodite? The similarities are intriguing. |
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Dec 20 2006, 06:14 AM
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#29
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Senior Member Group: Members Posts: 3419 Joined: 9-February 04 From: Minneapolis, MN, USA Member No.: 15 |
Notice that Venus's rifts run primarily along the equator and that the Valles Marineris is roughly equatorial on Mars. With the exception of Ganymede and Callisto (which is surfacewise totally dead), all of the solid worlds in that size range have signs of equatorial tectonism. Hmmm... not *all* of the worlds in that range, since Venus and Earth are of near-identical size and mass. Earth has a lot of tectonic activity, but its shattered crust seems to exert more control over the orientation of rifts and crustal cracking than whatever it is on these other worlds that causes equatorial tectonics. -the other Doug -------------------- “The trouble ain't that there is too many fools, but that the lightning ain't distributed right.” -Mark Twain
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Dec 21 2006, 03:24 PM
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#30
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Senior Member Group: Moderator Posts: 2785 Joined: 10-November 06 From: Pasadena, CA Member No.: 1345 |
Hmmm... not *all* of the worlds in that range, since Venus and Earth are of near-identical size and mass. Earth has a lot of tectonic activity, but its shattered crust seems to exert more control over the orientation of rifts and crustal cracking than whatever it is on these other worlds that causes equatorial tectonics. Could differences with Earth and Venus be explained away by past/current history? Earth's moon-making impact probably caused massive new cracks as it's surface reformed, and Venus's periodic resurfacing may reset the tectonic lines with each resurfacing event. Maybe equatorial tectonics is the norm for mid-size worlds? -Mike -------------------- Some higher resolution images available at my photostream: http://www.flickr.com/photos/31678681@N07/
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