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Miranda Nightside
tedstryk
post Jun 23 2007, 12:22 AM
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After much fiddling and trying, I think I have pulled some night side coverage out of Voyager data. I have uploaded a composite version, as well as a crop of the best single frame by itself.

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Ken90000
post Jun 23 2007, 02:27 AM
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You constantly amaze me with detail you are able to coax out of this 20-year-old data. Well Done.

Iíve been playing with the Voyager Neptune raw data. I honestly believe there is a lot of night side detail visible on Triton. Have you noticed this in the post encounter data?
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tedstryk
post Jun 23 2007, 02:52 AM
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Yes, I posted on that a while back....There is a lot of detail visible on the receding side...I really need to do some more work on those images. Here is some stuff I posted a while back....


Attached Image

Attached Image

Attached Image


Due to smearing and/or underexposure, combined with the fact that the geometry was bad for night-side imaging during the time when Voyager was closest, this was the best I could pull for night-side imagery.

Attached Image


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TritonAntares
post Jun 23 2007, 11:40 AM
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QUOTE (tedstryk @ Jun 23 2007, 04:52 AM) *
...
Due to smearing and/or underexposure, combined with the fact that the geometry was bad for night-side imaging
during the time when Voyager was closest, this was the best I could pull for night-side imagery.

Attached Image

Astonishing, you can recognize two different terrain types (dark & bright) like in this image:
Attached Image


Makes we wonder where the poles are in your 'Tritonshine' image?

Bye.
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scalbers
post Jun 23 2007, 01:46 PM
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Hi Ted - I'll have to look a bit closer as I wonder if the image just above would add further details to my Triton map at http://laps.noaa.gov/albers/sos/sos.html#TRITON


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tedstryk
post Jun 23 2007, 03:42 PM
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The crescent images are over the south polar cap. For the life of me, I can't find the exact locations.


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scalbers
post Jun 23 2007, 04:04 PM
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I was still waking up earlier as I should perhaps be asking Triton-Antares about the location of that image on the bottom of post #4. This discussion might also be moved to an appropriate Triton thread if needed. Thanks all.


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tedstryk
post Jun 23 2007, 04:15 PM
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That image is from the planetary photojournal, if that helps.

http://photojournal.jpl.nasa.gov/catalog/PIA02213


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As old as Voyage...
post Jul 1 2007, 10:03 AM
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QUOTE (tedstryk @ Jun 23 2007, 03:52 AM) *
Yes, I posted on that a while back....There is a lot of detail visible on the receding side...I really need to do some more work on those images. Here is some stuff I posted a while back....


Attached Image

Attached Image

Attached Image


Due to smearing and/or underexposure, combined with the fact that the geometry was bad for night-side imaging during the time when Voyager was closest, this was the best I could pull for night-side imagery.

Attached Image


Congratulations, that is a beautiful piece of work. Is the hemisphere of Triton lit by Neptuneshine previously unseen territory, or was it seen earlier in the encounter when in sulight?


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tedstryk
post Jul 1 2007, 02:02 PM
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QUOTE (As old as Voyager @ Jul 1 2007, 10:03 AM) *
Congratulations, that is a beautiful piece of work. Is the hemisphere of Triton lit by Neptuneshine previously unseen territory, or was it seen earlier in the encounter when in sulight?


I don't know about the Neptuneshine area. I have seen a crude chart showing that the higher resolution crescent images are on the polar cap roughly opposite the incoming high resolution coverage. However, the PDS labels give no coordinates, so I am not sure on exact locations.


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tedstryk
post Jul 3 2007, 09:46 PM
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There is indeed that orangish area. The color is OGV, which may be a factor. In the first Triton global color view I posted (the closest one before it filled the frame, this is also visible, but it is on the limb, rendering it really hard to see).

Attached Image


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