Juno perijove 4, February 2, 2017 |
Juno perijove 4, February 2, 2017 |
Jan 20 2017, 11:16 PM
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#1
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Senior Member Group: Members Posts: 2346 Joined: 7-December 12 Member No.: 6780 |
It's time to open a perijove-4 thread.
Voting is open for another two days. So, don't hesitate too long. Besides the discussion and the POIs on the mission page, you might consider John Roger's detailed discussion of several interesting features. If everything goes well, all instruments will be switched on. |
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Mar 26 2017, 11:44 AM
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#2
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Senior Member Group: Members Posts: 2346 Joined: 7-December 12 Member No.: 6780 |
Well, each perijove would/should allow for dozens of different fly-over animations. This is a short 200-frame animation derived from PJ04 image #109 (south polar region), and rendered with 10 pixels per (cylindrical) degree:
jnc_pj04_109_10px_600x600_timelapse120_200frames_decompand_sqrt_v01.avi ( 895.83K ) Number of downloads: 417 It's close to "natural" colors, and square-root encoded with respect to radiometric values. 24 fps, and one frame per 5 real seconds result in a 120-fold time-lapse. SPICE trajectory data dumped with the NAIF/SPICE utility spy.exe, all frames rendered directly from the raw (credit for the raws: NASA / JPL / SwRI / MSSS) using these SPICE trajectories, then converted to an AVI using ffmpeg. I'm yet a little hesitant with creating and posting renditions of this type, since these sequences would look better with an "appropriate" enhancement. And I'm not yet quite happy with my own attempts to implement "appropriate". -- Fingers crossed, that Juno will get mission extensions until near the end of the anticipated lifetime of the hardware somewhere near 40 perijoves, hopefully with a then still working JunoCam. |
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