Finished up a set of preview images for this encounter:
https://pirlwww.lpl.arizona.edu/~perry/Juno/pj55.htm
This uses the PJ53 images as a template for image timing, so images every 3 minutes ±10 minutes of C/A then wider spacing outside of that. Juno is oriented so that is off nadir so it does a better job of keeping Io in the middle of the JunoCam FOV (and JIRAM centered on Io as well, which is great as the drift near C/A can lead to only a few images being taken making summed images have poorer quality).
This will be the first of 4 flybys that will definitely improve mapping of Io.
Pj53 already helped north of ~65N, particularly with mapping where mountains are.
Finished up my preview video for PJ55:
https://youtu.be/bYP9G8fWRO0?si=ae57n3eA99kIyxVt
I didn't know about Juno's orbit possibly being changed. That is fascinating.
Scott Bolton mentioned it at OPAG back in May and the dates and distances come from that presentation. That change hasn't shown up in the form of a new reference trajectory, so I don't know what the status of that orbit change.
I use Cosmographia from NAIF: https://naif.jpl.nasa.gov/naif/cosmographia.html . I have a custom add-on for Juno that uses all the latest kernels and has footprints for JIRAM, JunoCam, and the SRU. I've attached a zip file of it here, but note that you still need to gather up all the necessary kernels. I've also attached a txt file copy of my meta kernel so you can see what ones you need to download.
For actually creating the video, I used Final Cut Pro, but I suspect you were asking more about the visualization tool.
[quote name='volcanopele' date='Oct 12 2023, 11:34 AM' post='261936']
I use Cosmographia from NAIF:
i do the same but use celestia with a ton of kernels . My ssc file for the spacecraft is getting a bit long and the folder is 4.9 Gig in size
Was flyby successful?
So far so good. reconstructed c-kernel dropped about 30 minutes ago.
Looks fairly successful.
Exaggerated Color/Contrast PJ55_29, Io from 11645 km. (north not up)
We've got some plumage, and Jupiter-shine illumination.
PJ55_29 with .5 gamma.
Looks like there is also a different plume that shows up in images 33 to 36.
Yep, Zamama is still active.
Nope, It's Volund!
PJ55 Io Initial downlink images overview, normal-ish color/contrast
I'm thinking back to the time about 15 years ago when the informed expectation for images of Io was about 9 pixels for the entire image.
Of course no one back then was anticipating the trajectory modifications required by the longer orbit and extended mission timeline.
The original trajectory would have flown through the radiation belts much more often. How much instruments would have degraded by now is hard to say (but it's definitely serendipitous!)
Funny, because the success of this flyby led me to muse over an impractical hypothetical scenario where the Galileo Orbiter, in response to its antenna issues, was put into a "parking" orbit with minimal radiation belt flybys until a relay orbiter could be flown out to join it and let the mission resume with the combination of Galileo's instruments and high-throughput data transfer. I'm sure that that would have been wildly impractical, but this phase of Juno's mission has just a touch of the spirit of that. We now have the data throughput asset that Galileo lacked.
My version of the PJ55_29 image:
That plume is Prometheus, also seen on PJ53.
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