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Europa Flyby - PJ45, September 29, 2022
volcanopele
post Sep 15 2022, 02:24 AM
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I updated my kernels earlier this week to prep for this week’s PDS release (not expecting JIRAM Io data, but there could be some distant ones) and for the Europa encounter. so yeah, that’s the kernel I’m using (along with the latest Predict trajectory file) to estimate the viewing geometry. I’m using Cosmographia to get a predicted central image time centered at Europa then I feed that time to a python script that spits out the center lat/Lon, subsolar lat/Lon, altitude, JIRAM pixel scale, and JunoCAM pixel scale.

Central image times were 09:37:49, 09:38:49, 09:39:49, and 09:40:48.


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djellison
post Sep 15 2022, 03:09 AM
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QUOTE (volcanopele @ Sep 14 2022, 11:50 AM) *
One thing to keep in mind for everyone is that Artemis is playing havoc on the DSN schedule for a lot of missions.


Seriously - much kudos to DSN schedulers across every mission out there - between the Artemis requirements and the blunderbuss of CubeSats it's deploying - the impact to the DSN is like nothing I've ever seen.
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volcanopele
post Sep 15 2022, 03:55 AM
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And I just so happen to be planning the images on TWO Mars cameras for that week… yeah.


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volcanopele
post Sep 21 2022, 11:46 PM
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Back to Europa, I finally uploaded a preview video for the Europa encounter:

https://youtu.be/XZ040wMRSUA

Here is a ground track map for the encounter:

Attached Image


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Decepticon
post Sep 24 2022, 05:19 AM
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https://www.jpl.nasa.gov/news/nasas-juno-wi...icy-moon-europa
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Brian Swift
post Sep 27 2022, 07:26 AM
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Noticed DSN has been chatting with Juno most of today. I wonder if that is typical 2 days before encounter.
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mcaplinger
post Sep 27 2022, 03:31 PM
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QUOTE (Brian Swift @ Sep 26 2022, 11:26 PM) *
Noticed DSN has been chatting with Juno most of today. I wonder if that is typical 2 days before encounter.

Since the Europa flyby is a gravity assist for period reduction, there is probably more interest in radiometric tracking than there would be for a normal PJ. Though I can't say that this is atypical, I haven't looked before.


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mcaplinger
post Sep 29 2022, 06:16 PM
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Europa images on missionjuno.


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Brian Swift
post Sep 29 2022, 06:41 PM
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QUOTE (mcaplinger @ Sep 29 2022, 10:16 AM) *
Europa images on missionjuno.

My Preliminary processing of PJ45_01. (51% chance it's upside down).
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volcanopele
post Sep 29 2022, 06:49 PM
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Processing them now. I also have HiRISE commanding to do today. so this... this is going to be a long day...


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volcanopele
post Sep 29 2022, 07:05 PM
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Knocking on all the wood here but I should have a controlled mosaic in the next hour.


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Bjorn Jonsson
post Sep 29 2022, 07:06 PM
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This is a very early and preliminary version of the first image. North is up.

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mcaplinger
post Sep 29 2022, 07:08 PM
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QUOTE (Brian Swift @ Sep 29 2022, 11:41 AM) *
My Preliminary processing of PJ45_01. (51% chance it's upside down).

Looks right to me.
Attached Image


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Bjorn Jonsson
post Sep 29 2022, 07:18 PM
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There seem to be far smaller errors in the spacecraft's position from the SPK predict kernel than there were for the Ganymede flyby. There I had to make large corrections but early indications are that I need to make only minor corrections here (it's even possible that I do not need to make any corrections to the spacecraft's position).
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Brian Swift
post Sep 29 2022, 07:32 PM
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There was enough Jupiter-shine to bring the signal from night side up a little bit over noise levels.
Attached Image


Mike, since this is image number 01, I assume there isn't a higher TDI image of the night side.
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