Juno, perijove 11, February 07, 2018 |
Juno, perijove 11, February 07, 2018 |
Feb 8 2018, 12:41 AM
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Senior Member Group: Members Posts: 2346 Joined: 7-December 12 Member No.: 6780 |
Part of the perijove-11 data have already been downlinked. So, we should start an according topic.
Here a thumbnail simulation I've rendered a few days ago, in order to see, how Jupiter may appear in JunoCam images: The simulation is based on SPICE kernels as they have been available last week. Simulated shading is of Lambertian type by solar incidence. The short appearance of a small portion of a mirror image of Jupiter in the upper and lower left corner indicates an apparent vertical extension of Jupiter of more than 180 degrees in cylindrical coordinates, which is strange. I wonder, whether that's a glitch in my calculations, or whether it can be explained by Juno's curved trajectory close to Jupiter, while JunoCam is taking the simulated image over about 15 seconds. I don't mean the mirror image (which doesn't appear in real images), but the extension of more than 180 vertical cylindrical degrees. |
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Feb 9 2018, 04:20 AM
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Senior Member Group: Members Posts: 2346 Joined: 7-December 12 Member No.: 6780 |
... and #017:
Those are the RGB images of Perijove-11, downlinked and available as raws on the missionjuno site thus far. I've rendered with 60 deg x 180 deg FOV, cylindrical equidistant seen from the spacecraft at image stop time. The PNG version is submitted to the missionjuno site. Some images actually cover more than 180 degrees vertically. After some pondering, I think, that's mostly due to the spacecraft's spin axis relative to Jupiter's surface. |
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