Juno, perijove 12, April 1, 2018 |
Juno, perijove 12, April 1, 2018 |
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Junior Member ![]() ![]() Group: Members Posts: 71 Joined: 12-December 16 Member No.: 8089 ![]() |
So, according to the voting page, apparently the spacecraft's being spun around to get the instruments pointed directly at the planet. Io and Ganymede will also be imaged during this pass, as they'll come into view of JunoCam two hours before and twelve hours after closest approach, respectively. For Io, the team are "planning to take two pictures - one exposed nominally and one that over-exposes Io to look for volcanic plumes extending above the surface." The Great Red Spot is also expected to come into view during the spacecraft's departure.
Here's a logo for Perijove 12 I threw together, by the way. ![]() |
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Senior Member ![]() ![]() ![]() ![]() Group: Members Posts: 2346 Joined: 7-December 12 Member No.: 6780 ![]() |
For these suble to very subtle features, and for a few other purposes, I've implemented kind of a hipass filter that considers local contrast as well as validity of data.
Here a link to a cylindrical map projection of PJ12, #90 (about 55 MB, 3600x7200 pixels PNG) that averages the hipass-filtered image with an illumination-adjusted and gamma-enhanced version, in order to recover some global colorization. Rendering large maps with this filter takes several hours, however. Scroll down to the center and a little further below for the mesoscale waves. There are also some more subtle waves above the center, as well as a second diagonal of wind-blown "popup" clouds, maybe some kind of cirrus, like cirrostratus. |
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