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Juno Perijove 17, December 21, 2018
Gerald
post Yesterday, 02:07 AM
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The analysis of the cloud velocity field of Oval BA in post #71 is based on two images taken within about 10 minutes. The white arrows represent the infered motion within 10 hours. The velocity field can be determined in a meaningful quantitative way from images taken within 10 real-time minutes. Sean's animation is covering a longer time interval. So, the answer is a clear yes. Here the set of maps Seán's animation is derived from. They require some additional registering. But it's well feasible.
Here is an animation of the south polar region during PJ15.
Or here a denoised MP4 version.
Here a +/-25 days steady flow extrapolation, also infered from a south polar PJ15 image pair.

... and here a preliminary analysis of a larger region, on the basis of two PJ17 images.
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tanjent
post Today, 03:48 AM
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If a pole-to-pole pass takes about 90 minutes, it will be difficult to remain within camera range of any point in the low latitudes for more than 10 minutes, won't it? For polar regions there should be more time to register motion, but still the fact that you can infer so much longer-term dynamics from the available comparisons is remarkable. It testifies to the quality of both the optics and the processing. Very nice work.
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