Miranda Nightside |
Miranda Nightside |
Jun 23 2007, 12:22 AM
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#1
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Interplanetary Dumpster Diver Group: Admin Posts: 4404 Joined: 17-February 04 From: Powell, TN Member No.: 33 |
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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Jun 23 2007, 02:27 AM
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#2
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Junior Member Group: Members Posts: 55 Joined: 8-November 06 From: Indiana, USA Member No.: 1337 |
You constantly amaze me with detail you are able to coax out of this 20-year-old data. Well Done.
I’ve 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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Jun 23 2007, 02:52 AM
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#3
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Interplanetary Dumpster Diver Group: Admin Posts: 4404 Joined: 17-February 04 From: Powell, TN Member No.: 33 |
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....
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. -------------------- |
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Jun 23 2007, 11:40 AM
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#4
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Member Group: Members Posts: 288 Joined: 28-September 05 From: Orion arm Member No.: 516 |
... 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. Astonishing, you can recognize two different terrain types (dark & bright) like in this image: Makes we wonder where the poles are in your 'Tritonshine' image? Bye. |
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Jun 23 2007, 01:46 PM
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#5
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Senior Member Group: Members Posts: 1622 Joined: 5-March 05 From: Boulder, CO Member No.: 184 |
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
-------------------- Steve [ my home page and planetary maps page ]
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Jun 23 2007, 03:42 PM
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#6
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Interplanetary Dumpster Diver Group: Admin Posts: 4404 Joined: 17-February 04 From: Powell, TN Member No.: 33 |
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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Jun 23 2007, 04:04 PM
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#7
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Senior Member Group: Members Posts: 1622 Joined: 5-March 05 From: Boulder, CO Member No.: 184 |
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.
-------------------- Steve [ my home page and planetary maps page ]
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Jun 23 2007, 04:15 PM
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#8
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Interplanetary Dumpster Diver Group: Admin Posts: 4404 Joined: 17-February 04 From: Powell, TN Member No.: 33 |
That image is from the planetary photojournal, if that helps.
http://photojournal.jpl.nasa.gov/catalog/PIA02213 -------------------- |
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Jul 1 2007, 10:03 AM
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#9
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Member Group: Members Posts: 117 Joined: 7-December 06 From: Sheffield UK Member No.: 1462 |
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.... 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. 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? -------------------- It's a funny old world - A man's lucky if he gets out of it alive. - W.C. Fields.
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Jul 1 2007, 02:02 PM
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#10
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Interplanetary Dumpster Diver Group: Admin Posts: 4404 Joined: 17-February 04 From: Powell, TN Member No.: 33 |
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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Jul 3 2007, 09:46 PM
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#11
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Interplanetary Dumpster Diver Group: Admin Posts: 4404 Joined: 17-February 04 From: Powell, TN Member No.: 33 |
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).
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