3D shape, cartography, and geoid of Comet 67P C-G |
3D shape, cartography, and geoid of Comet 67P C-G |
Aug 6 2014, 02:11 PM
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Solar System Cartographer Group: Members Posts: 10192 Joined: 5-April 05 From: Canada Member No.: 227 |
Explorer 1 said:
"A 2D map of C-G seems like a tough order; the projection math alone..." Don't worry! If you can put a grid on the surface (as we have seen already), you can warp that grid into any map projection you like. Mapping will be no huge problem - in fact I expect they have a rough one already (I've been playing with one myself). 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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Sep 2 2014, 11:41 PM
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#2
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Member Group: Members Posts: 890 Joined: 18-November 08 Member No.: 4489 |
QUOTE t would be interesting to see a map of where "down" is in the different surface areas of the comet. down in the -- north up and south down --- a repost from a different forum the bottom two images in the bottom right image been working on mapping the esa jpg images to a updated mesh -- not looking good YET a 10 deg grid test map then warped to the mesh -- this is SCARY ( as in Oct. 31 scary ) then just the updated mesh and esa images from aug. 7 and 15 |
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Sep 3 2014, 11:49 AM
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#3
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Member Group: Members Posts: 241 Joined: 22-August 05 From: Stockholm Sweden Member No.: 468 |
down in the -- north up and south down --- a repost from a different forum the bottom two images in the bottom right image been working on mapping the esa jpg images to a updated mesh -- not looking good YET a 10 deg grid test map then warped to the mesh -- this is SCARY ( as in Oct. 31 scary ) then just the updated mesh and esa images from aug. 7 and 15 Is that your own shapemodel or is it something ESA have made that is in the public domain? Im working on building my own. but I would like to have another stereo pair from osiris before i continue in ernest. (i want to make an ultra high density model) I have reverseengineered all the spacecraft positions relative to the comet for all pictures up until now but i have no real coordinate system yet. Is there a consensus northpole and a southpole and a prime meridian that i can use to build that? Just points on the surface would help edit: oh.. you just posted those pictures... where did you get that information? |
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