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Stellar Reference Unit Images
Brian Swift
post Aug 6 2020, 08:47 PM
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Images from SRU "Supplementary Data 2" published in:
Becker, H.N., Alexander, J.W., Atreya, S.K. et al. Small lightning flashes from shallow electrical storms on Jupiter. Nature 584, 55–58 (2020). https://doi.org/10.1038/s41586-020-2532-1

Spreadsheet sheet names for images: PJ11_Image12,PJ13_Image11, PJ13_Image12, PJ14_Image11, PJ14_Image12, PJ15_Image12, PJ15_Image13, PJ16_Image19, PJ17_Image13

A Mathematica HistogramTransform[] operation was applied after the spreadsheet data was converted to images.

JunoSRUImages by bswift, on Flickr
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NMRguy
post Jun 25 2021, 02:24 PM
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Thanks Brian! This is really helpful.

At a minimum, this may open up Dark Side/Planetshine Outer Planetary satellite imagery opportunities if Program Managers want to spend the money integrating an SRU-class camera into these future proposals. We'll see what the overall Juno SRU imagery collection yields on the three innermost Galilean moons.


As to the Advanced Stellar Compass sensors, I remember that the Juno team released some Juno/ACS imagery data during the 2013 Earth flyby, including a fun little video of the Moon orbiting the Earth. Resolution is much poorer than SRU data, for sure. ( https://www.planetary.org/space-images/the-...-seen-from-juno )
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mcaplinger
post Sep 26 2022, 04:10 PM
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QUOTE (NMRguy @ Jun 25 2021, 07:24 AM) *
At a minimum, this may open up Dark Side/Planetshine Outer Planetary satellite imagery opportunities if Program Managers want to spend the money integrating an SRU-class camera into these future proposals.

On a three-axis stabilized spacecraft, any camera can do this by using a long exposure time. It's only because Juno is a spinner that it becomes so difficult. And the SRU is terribly constrained as a general-purpose imager. No reflection on it, it's a star camera and was never intended for this application.


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Disclaimer: This post is based on public information only. Any opinions are my own.
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