New map of Phobos |
New map of Phobos |
Mar 10 2010, 10:25 PM
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#1
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Solar System Cartographer Group: Members Posts: 10166 Joined: 5-April 05 From: Canada Member No.: 227 |
I'm starting a thread here in Mars Express for a new map of Phobos, because most of it will be based on MEX images.
This is the first section. It's the north pole, centred on the pole, out to 50 degrees north at the edge, in azimuthal equidistant projection (i.e. the parallels of latitude are equally spaced, unlike in a stereographic projection where they would get further apart away from the pole). This image is made of Viking, Mars Express and MRO images. Below it I show what the previous best map looked like, much more compressed to save space here. That is just Viking data, compiled by Damon Simonelli et al. at Cornell in the 1990s. The actual mapping is done at twice this scale. 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 PD: 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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Mar 10 2010, 10:27 PM
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#2
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Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
Wow, Phil, the improvement's fantastic. I can't wait to see what's next.
-------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
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Mar 15 2010, 07:04 PM
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#3
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Solar System Cartographer Group: Members Posts: 10166 Joined: 5-April 05 From: Canada Member No.: 227 |
Here's the south pole. This is only a small improvement over the earlier one as we don't have extremely high resolution images in the south.
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 PD: 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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Mar 16 2010, 04:55 PM
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#4
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Solar System Cartographer Group: Members Posts: 10166 Joined: 5-April 05 From: Canada Member No.: 227 |
Taking the north and south polar sections and adding them to the cylindrical map, we get this. Next step, I'll fill in the gap starting in the middle. I'm working at 4 times this resolution.
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 PD: 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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Mar 16 2010, 06:42 PM
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#5
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Senior Member Group: Members Posts: 1431 Joined: 26-July 08 Member No.: 4270 |
Wow that looks great even in that state!
-------------------- -- Hungry4info (Sirius_Alpha)
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Mar 18 2010, 07:36 PM
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#6
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Newbie Group: Members Posts: 13 Joined: 23-March 08 Member No.: 4072 |
¿Is there any DTM model of Phobos available with more accuracy than the previous based on Viking data, based on the more accurate data from Mars Express imaging data, obtained in 2008 and from these recent fly-bys (and maybe from MRO data?.
If yes, ¿where I can find that info? Thanks |
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Mar 18 2010, 09:47 PM
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#7
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Solar System Cartographer Group: Members Posts: 10166 Joined: 5-April 05 From: Canada Member No.: 227 |
People are working on these things but I don't think anything is released yet.
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 PD: 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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Mar 19 2010, 02:11 PM
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#8
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Solar System Cartographer Group: Members Posts: 10166 Joined: 5-April 05 From: Canada Member No.: 227 |
I forgot about the new atlas of Phobos and shape model from DLR in Germany - see it here. So yes, there is a new shape model.
Phil http://europlanet.dlr.de/node/index.php?id=214 -------------------- ... 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 PD: 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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Mar 19 2010, 08:56 PM
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#9
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Solar System Cartographer Group: Members Posts: 10166 Joined: 5-April 05 From: Canada Member No.: 227 |
Next step in the Phobos mosaic. Here's the original (middle part of the global cylindrical mosaic posted above)...
and here's the new version with a HiRISE and a HRSC image added: 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 PD: 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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Mar 31 2010, 03:06 PM
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#10
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Solar System Cartographer Group: Members Posts: 10166 Joined: 5-April 05 From: Canada Member No.: 227 |
-------------------- ... 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 PD: 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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Apr 7 2010, 09:02 PM
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#11
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Solar System Cartographer Group: Members Posts: 10166 Joined: 5-April 05 From: Canada Member No.: 227 |
I've finished the central panel of the big new Phobos map. Here it is at 25% scale (and heavily compressed)
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 PD: 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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Apr 8 2010, 10:14 AM
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#12
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Lord Of The Uranian Rings Group: Members Posts: 798 Joined: 18-July 05 From: Plymouth, UK Member No.: 437 |
It looks like a real labour of love, Phil.
And boy do some of those grooves look like heavilly eroded uber-crater chains... -------------------- |
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Apr 8 2010, 11:12 AM
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#13
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Senior Member Group: Members Posts: 1431 Joined: 26-July 08 Member No.: 4270 |
Interesting flipping back and forth between the images on post #11 and post #4.
-------------------- -- Hungry4info (Sirius_Alpha)
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Apr 16 2010, 08:17 PM
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#14
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Solar System Cartographer Group: Members Posts: 10166 Joined: 5-April 05 From: Canada Member No.: 227 |
Flip some more! Here's the next section of the equatorial map. I've already done more than half of it.
Original version with my sections at the edges to ensure a perfect match: New version, with an L-shaped gap at the bottom: Much of the new map is from Mars Express, but here quite a lot is still Viking. However, my Viking mosaics are higher quality than the originals which went into the original map. I have also corrected a lot of bad seams in the old mosaic. 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 PD: 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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Apr 16 2010, 10:17 PM
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#15
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Senior Member Group: Members Posts: 1431 Joined: 26-July 08 Member No.: 4270 |
That really is pretty cool. Do you know yet if you'll add some MRO imagery?
-------------------- -- Hungry4info (Sirius_Alpha)
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