Europa Flyby - PJ45, September 29, 2022 |
Europa Flyby - PJ45, September 29, 2022 |
Sep 13 2022, 02:58 AM
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#1
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Senior Member Group: Members Posts: 1278 Joined: 25-November 04 Member No.: 114 |
Juno is set to flyby of Europa on Sept. 29, 2022 (PJ45)
I can't wait to see the results of this flyby! Sadly not much information is available online. Jason Has a beautiful animation of encounter on youtube. https://www.youtube.com/watch?v=r9bx1GcoqEE...nel=volcanopele |
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Oct 1 2022, 05:15 PM
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#2
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Senior Member Group: Members Posts: 1670 Joined: 5-March 05 From: Boulder, CO Member No.: 184 |
Here's an approximate remapping of Bjorn's PJ45_2 image (in grayscale) blinking with the earlier map.
-------------------- Steve [ my home page and planetary maps page ]
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Oct 1 2022, 06:33 PM
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#3
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Member Group: Members Posts: 254 Joined: 14-January 22 Member No.: 9140 |
Nice work, scalbers!
It seems that maybe because Juno was so close to Europa that projecting the imagery as though the distance were infinity creates some significant distortion near the limb. It's very nice how the coverage here happened to fill an area where existing coverage was particularly lacking, particularly in the north. At a glance, it looks like the new imagery reveals some dark linea in the north that didn't exist before, but a less sensational explanation would be that the linea vary in visibility as a function of viewing geometry and that previous imagery was simply incapable of observing them. But I'm sure we'll hear an expert review soon. The other thing that would be interesting to learn from this is if the slippage of Europa's icy shell over ~25 years is large enough to be detectible. The details near the terminator are extremely sensitive to the exact rotation between now and any points in the past. We know that the slippage occurs, and maybe 25 years is enough to give us the first direct measurement of it. |
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