Enceladus Plume Search, Nov. 27 |
Enceladus Plume Search, Nov. 27 |
Nov 24 2005, 04:01 PM
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Senior Member Group: Members Posts: 1465 Joined: 9-February 04 From: Columbus OH USA Member No.: 13 |
Interesting item in the science plan kernel (S16) just released to the NAIF website:
OBSERVATION_ID: S1629 SEQUENCE: S16 OBSERVATION_TITLE: Plume Search SCIENCE_OBJECTIVE: Hope to detect/observe plumes, whether from volcanic activity or geysers. OBS_DESCRIPTION: Point and stare. SUBSYSTEM: ISS PRIMARY_POINTING: ISS_NAC to Enceladus (0.0,5.0,0.0 deg. offset) REQUEST_ID: ISS_018EN_PLUMES001_PRIME REQUEST_TITLE: ENCELADUS Geyser/Plume Search REQ_DESCRIPTION: 1;ENCELADUS Geyser/Plume Search 1x1xNPp -- 3 different exposures BEGIN_TIME: 2005 NOV 27 19:00:00 UTC END_TIME: 2005 NOV 27 20:00:00 UTC -------------------- |
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Dec 1 2005, 01:14 PM
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Senior Member Group: Members Posts: 3419 Joined: 9-February 04 From: Minneapolis, MN, USA Member No.: 15 |
Based on the shadows, the sun is on the *right*... unless you posted the image upside-down to the way you were looking at it when you made the comment.
-the other Doug -------------------- “The trouble ain't that there is too many fools, but that the lightning ain't distributed right.” -Mark Twain
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Dec 1 2005, 01:22 PM
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#3
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Senior Member Group: Members Posts: 1465 Joined: 9-February 04 From: Columbus OH USA Member No.: 13 |
QUOTE (dvandorn @ Dec 1 2005, 09:14 AM) Based on the shadows, the sun is on the *right*... unless you posted the image upside-down to the way you were looking at it when you made the comment. -the other Doug I don't think so. Here's an expanded view which shows a bit of the terminator in the lower right. A particuarly long shadow stretching to the right is marked by the arrow: So the sun would be to the left. -------------------- |
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Dec 1 2005, 02:04 PM
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#4
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Senior Member Group: Members Posts: 3652 Joined: 1-October 05 From: Croatia Member No.: 523 |
QUOTE (jmknapp @ Dec 1 2005, 02:22 PM) That last image certainly put the things into context, it's really hard to figure out what's high and what's low from small sections of that image you posted. In fact, if the geometry of the image is what I think it is, the sun is precisely on the left hand side, illumination being parallel to the image scanlines. -------------------- |
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