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Juno perijove 7: GRS images, July 11, 2017
Gerald
post Jul 16 2017, 12:31 AM
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My YouTube version of the GRS fly-over is online now.

Here is the site where I'll provide the stills, currently with dangling hyperlinks, except the AVI.
The stills are about 6 GB of zip files. My upload bandwidth is usually about 100 kb. Considering several system shutdowns during the upload, including some intentional breaks, I'd expect, that the upload will be completed near 2017-07-17T00:00:00, i.e. in about one day from the time of submitting this post.
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Gerald
post Jul 16 2017, 06:36 AM
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The zip files 61_1, 61_2, 62_0, and 62_1, i.e. the last four are uploaded, thus far without technical issues. If everything continues the same way, the remaining zips should be available today, 2017-07-16, at about 16:00 UTC.
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Sean
post Jul 16 2017, 09:51 AM
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Thanks Gerald, downloading fine.


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Sean
post Jul 16 2017, 03:43 PM
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Here is a re-timed video using your files Gerald.


Music is Lux Aeterna by György Ligeti

I did a little processing and disguised the linear path change. My time was limited so the transition around 15s could be better!


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Gerald
post Jul 16 2017, 04:23 PM
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Upload completed.

I've also added an MP4 version, sampled with 50 fps, by frame doubling, I guess, simply used the ffmpeg default.

"Lux Aeterna" has been one of Glenn Orton's suggestions. My vote goes to another of his suggestions, "Also sprach Zarathustra", the most famous "2001" sound for the most famous Jupiter feature, applied to a 10-fold time-lapse, hence a 2.5-fold slow-down of my version.
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brellis
post Jul 16 2017, 05:37 PM
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That's gorgeous! You get a feel for the immense scale of this planet. I love the Ligeti for its raw energy, and probably also for its association with some other classic film about space. smile.gif
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PhilipTerryGraha...
post Jul 16 2017, 05:47 PM
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So, a person on the subreddit wanted to know what this particular dot in Bjorn's image could be. I don't have an answer for him, so I'm asking you guys on his behalf. Just an artifact of processing or something like that?


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mcaplinger
post Jul 16 2017, 06:11 PM
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QUOTE (PhilipTerryGraham @ Jul 16 2017, 09:47 AM) *
So, a person on the subreddit wanted to know what this particular dot in Bjorn's image could be.

Looks like it's an uncorrected artifact from the crud on the image sensor.

There are some charged particle hits in these images but this doesn't look like one to me.

It's always a good idea to go back to the raw data in cases like this. Things that show up in only one color are usually one of these two things.


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Gerald
post Jul 16 2017, 08:56 PM
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In my patched version of PJ07, #60, there is the same bright pixel, and I try to patch even very subtle camera artifacts, based on PJ06. So, it's either a new hot pixel, a rare coincidence of artifacts that I don't patch, or an "event".
The by far most likely option for an "event" is an energetic particle hit. There is a remote chance for a lightning, but since it appears to be just one pixel, I doubt it.
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Bjorn Jonsson
post Jul 16 2017, 10:24 PM
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At least some of the PJ7 images are a bit noisy. That's the reason for a few strange pixels in my images; I haven't succeeded in fixing all of them. This is negligible compared to Galileo and Voyager but my impression is that the PJ7 images are probably more noisy than the PJ6 images. Here is an example from the raw data, enlarged by a factor of 3:

Attached Image


I suspect these are radiation hits because the number and position of these artifacts differs from image to image.
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Bjorn Jonsson
post Jul 17 2017, 05:02 PM
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Here are approximately true color versions of PJ7_61:

Attached Image
Attached Image

Attached Image


And some of the relevant metadata:

IMAGE_TIME = 2017-07-11T02:10:42.286
MISSION_PHASE_NAME = PERIJOVE 7
PRODUCT_ID = JNCE_2017192_07C00061_V01
SPACECRAFT_ALTITUDE = 13917.4 km
SPACECRAFT_NAME = JUNO
SUB_SPACECRAFT_LATITUDE = -32.6733
SUB_SPACECRAFT_LONGITUDE = 60.7938
TITLE = POI's: Lower Great Red Spot Atmospheric Flow, Fractured Boundary
Resolution at nadir: ~9.4 km/pixel
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stevesliva
post Jul 17 2017, 05:50 PM
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Wow, beautiful. The redness of the GRS makes it look more like your usual enhanced color composites.
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Decepticon
post Jul 17 2017, 09:51 PM
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Its amazing how Jupiter Red Spot looks more like the Pioneer 10/11 Images.
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Sean
post Jul 18 2017, 05:49 PM
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A fun take on GRS/Earth scale.

Click thru for a video...




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Nate_Bradford
post Jul 19 2017, 07:32 AM
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Hi All -

Newbie here. I've visited site many times, in the past. Fantastic processing work by many of you.
A Q please.
I've created a rough Anaglyph using GRS pass images but haven't seen any posted elsewhere. Do any of you know whether a correctly processed image (corrected for camera, motion etc distortions) in 3D is forthcoming from the Juno team?

Thanks smile.gif
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