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Juno - Jupiter Orbiter
nprev
post Aug 6 2011, 03:07 PM
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Glad you were there to represent UMSF, Fearless Leader! smile.gif


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Jim from NSF.com
post Aug 7 2011, 01:50 PM
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I forgot I was a member of this forum and could have provided some unique insight for those here. I was "in residence" with the Juno spacecraft team since they arrived in Florida and gave the call that the spacecraft was on internal power.
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nprev
post Aug 7 2011, 04:22 PM
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NICE shots, Jim!!!


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Paolo
post Aug 12 2011, 05:06 PM
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it's been one week since launch. any update?


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Paolo
post Aug 16 2011, 05:13 PM
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a status update at last!
the first trajectory correction has been canceled. too bad the unused fuel will be wasted, there being no mission extension planned... an asteroid flyby maybe?


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Explorer1
post Aug 16 2011, 05:58 PM
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They haven't mentioned any; Juno will be in the main belt two separate times during the cruise, but with the camera's wide FOV we'd need serious luck for anything more than a few pixels.
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Paolo
post Aug 16 2011, 06:21 PM
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but now they could target it with some of the fuel spared... wink.gif


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Paolo
post Aug 31 2011, 05:13 AM
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first JunoCam image!


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PDP8E
post Aug 31 2011, 05:12 PM
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this is a little zoom of Juno's Earth/Moon picture
I think I see my house ... my continent , my planet!
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mcaplinger
post Sep 1 2011, 06:15 AM
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In case anyone wants to play with the original data, here's a subsection of the first Earth/Moon image from Junocam in completely raw form. If you stretch it you can see some transform artifacts from the lossy compression we applied onboard. You may also see a little stray light from the sun on the right side of the image. Earth appears three times, once in the red, green, and blue bands (top to bottom). Earth is a bit saturated in the red and green bands; the exposure time was 3.2 msec, no TDI, and this is square-root companded.

If anyone can do a better job than the color composite we did, I'd be curious to see it. Because of the saturation, I think colorizing the blue channel would work better than a true composite, which tends to be a bit blurry.

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Attached File  junoem.tif ( 349.61K ) Number of downloads: 179
 


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monty python
post Sep 1 2011, 06:42 AM
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Thanks for the raw image. It shows just how little data their really was in that picture. The moon is only about one pixel wide in each color it seems to my untrained eye. You can just make out shape and general color when combining them. This is the kind of thing I come here for!

And a picture is better than no picture to me. It brings me there.



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PDP8E
post Sep 2 2011, 05:10 AM
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hello mcaplinger,
Thank you (MSSS?) for the raw data.
More later...


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Bjorn Jonsson
post Sep 2 2011, 02:44 PM
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Thanks for the raw image.

There are some dark (but not completely black) pixels around the Earth and Moon that are apparently compression artifacts (might also be scattered light but I doubt it because they seem to form a 'square'). A stretched version of blue image:

Attached Image

Apart from this the entire image is completely black (the intensity is exactly 0), there is no stray light on the right side of the image. I assume that this must be because this is a subsection of the original image.
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mcaplinger
post Sep 2 2011, 06:44 PM
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QUOTE (Bjorn Jonsson @ Sep 2 2011, 07:44 AM) *
Apart from this the entire image is completely black (the intensity is exactly 0), there is no stray light on the right side of the image. I assume that this must be because this is a subsection of the original image.

Right. That's why I said "may" instead of "will".


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ZLD
post Sep 2 2011, 08:15 PM
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Here is my take on the image. The red and green levels were over powering the blue, so I pushed the blue and lowered the input of the red and green, combined them all, compressed the histogram by a factor of 33 and then lowered the gamma a little. The moon has been artificially pushed as well of course.

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-minor change to image: dropped gamma a slight bit for better visual (monitor settings mishap).
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