A Map of Janus |
A Map of Janus |
 Apr 19 2021, 11:14 AM
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#1
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 Member  Group: Members Posts: 127 Joined: 15-April 21 Member No.: 9009  |
After some tinkering with 2 images of Janus, I have re-projected and worked on a accurate map for the moon.
The only other surface map i know of is http://www.johnstonsarchive.net/spaceart/cmaps/janusmap.jpg , but its super low resolution.  there was a another image of Janus i wanted to compile in there but i couldn't seem to find the view in relation to a 3d model so i can find the pole of the moon for re-projection and it does line up correctly to the model in Celestia  hope you enjoy this new map (there may still be some minor alignment issues) |
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Apr 19 2021, 04:16 PM
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#2
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 Senior Member Group: Moderator Posts: 3233 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
Unfortunately, Janus was poorly covered by Cassini, when compared to the excellent coverage of its partner Epimetheus. Beyond the images released in the Photojournal, a quick search of OPUS reveals a few more opportunities that could be added to the map:
https://opus.pds-rings.seti.org/opus/#/inst...s=1&detail= Unfortunately a lot of the better quality images were taken at higher-phase angles, but maybe there are a few that can expand coverage. Thanks TrappistPlanets for giving this a try. Would be good to see more Cassini-based shape models and maps of the minor moons become available. -------------------- &@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io |
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Apr 19 2021, 11:07 PM
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#3
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Member Group: Members Posts: 127 Joined: 15-April 21 Member No.: 9009 |
QUOTE (volcanopele @ Apr 19 2021, 05:16 PM)  Unfortunately, Janus was poorly covered by Cassini, when compared to the excellent coverage of its partner Epimetheus. Beyond the images released in the Photojournal, a quick search of OPUS reveals a few more opportunities that could be added to the map: https://opus.pds-rings.seti.org/opus/#/inst...s=1&detail= Unfortunately a lot of the better quality images were taken at higher-phase angles, but maybe there are a few that can expand coverage. Thanks TrappistPlanets for giving this a try. Would be good to see more Cassini-based shape models and maps of the minor moons become available. yeah and i also attempted Methone but my map has some alignment issues, altho i or someone else could fix it i also tried Atlas but the equator stuff in my map is all messed up, i need to figure that out before i upload it
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TrappistPlanets A Map of Janus Apr 19 2021, 11:14 AM
JRehling Fun! And thanks for that. How appropriate that... Apr 19 2021, 03:20 PM kymani76 Thanks for the map, it's really nice. I will a... Apr 19 2021, 05:41 PM TrappistPlanets JRehling, all links are broken, can you post them ... Apr 19 2021, 06:42 PM Tom Tamlyn The links work for me .... Apr 19 2021, 06:58 PM TrappistPlanets i already have this one ( https://photojournal.jpl... Apr 19 2021, 10:53 PM
TrappistPlanets as for https://photojournal.jpl.nasa.gov/catalog/P... Apr 19 2021, 11:00 PM |
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