A Map of Janus Options

[TrappistPlanets]

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)

[JRehling]

Fun! And thanks for that. How appropriate that your map covers two faces of Janus.

It seems like these images cover part of what is in your map:

https://photojournal.jpl.nasa.gov/catalog/PIA18369

https://photojournal.jpl.nasa.gov/catalog/PIA18299

It seems like this offers a bit of coverage that is best of its kind for this part of Janus:

https://photojournal.jpl.nasa.gov/catalog/PIA14607

And this image seems like it might bridge much of the uncovered territory in the middle of your map:

https://photojournal.jpl.nasa.gov/catalog/PIA12714

Another useful one?

https://photojournal.jpl.nasa.gov/catalog/PIA12602

And the south:

https://photojournal.jpl.nasa.gov/catalog/PIA11597

I had not kept track of the status of Janus imagery before. Thanks for giving this world its due!

[volcanopele]

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.

[kymani76]

Thanks for the map, it's really nice. I will attempt to improve the coverage when I find some time.
Here is the map aligned with 3d model of Janus:

[TrappistPlanets]

JRehling, all links are broken, can you post them as pic attachments please

[Tom Tamlyn]

The links work for me ....

[TrappistPlanets]

i already have this one ( https://photojournal.jpl.nasa.gov/catalog/PIA12602 ) in my map (its the blurry territory in my map)
the only other important thing i can get from that is the face of Epimetheus that is in there



and them links work on my chromebook but not my PC... weird (don't reply to this part to stay on topic)

[TrappistPlanets]

as for https://photojournal.jpl.nasa.gov/catalog/PIA11597 it says where the pole is (in numbers) but idk where it is to be exact in relation to the numbers its giving me, can someone help

[TrappistPlanets]

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

Attached thumbnail(s)