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new THEMIS color releases, Images showing color variations.
DDAVIS
post Jun 22 2006, 02:23 PM
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First of a new series:

http://themis.asu.edu/zoom-20060622a
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djellison
post Jun 29 2006, 08:58 AM
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Yes - HiRISE does TDI - (128 lines I think)

Essentially as eash row 'dwells' on the target, it adds the photons, then passes the count onto the next row of the 128 rows....thus increasing SNR by, in theory, 128 times. Of course there is noise and some losses within the process - but that's the theory as I understand it.

MOC NA, MOC WA, HRSC and CTX are, as I understand it, single line Pushbrooms. HiRISE a Pushbroom-with-TDI, and MARCI / THEMIS a Pushframe design. Discreet framing cameras were on board the Vikings, Mariners, and the crap SRC channel on HRSC smile.gif

Doug
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Posts in this topic
- DDAVIS   new THEMIS color releases   Jun 22 2006, 02:23 PM
- - djellison   Bloody hell Don, I don't know how you get such...   Jun 22 2006, 02:30 PM
- - Stu   Amazing work Don, thanks... THEMIS doesn't get...   Jun 22 2006, 04:47 PM
- - climber   If I read it correctly, these are true colours. De...   Jun 22 2006, 06:42 PM
|- - DDAVIS   QUOTE (climber @ Jun 22 2006, 06:42 PM) I...   Jun 22 2006, 07:51 PM
- - edstrick   The sad fact is that the Mars Odyssey cameras have...   Jun 23 2006, 10:43 AM
|- - AlexBlackwell   QUOTE (edstrick @ Jun 23 2006, 10:43 AM) ...   Jun 27 2006, 05:33 PM
|- - AlexBlackwell   QUOTE (AlexBlackwell @ Jun 27 2006, 05:33...   Jun 28 2006, 09:14 PM
- - djellison   HRSC's all right Doug   Jun 23 2006, 11:42 AM
- - Nix   Amazing work Don! Nico   Jun 24 2006, 10:49 AM
- - djellison   A similar design was used for MARCI as well, sort ...   Jun 27 2006, 07:19 PM
|- - mcaplinger   QUOTE (djellison @ Jun 27 2006, 12:19 PM)...   Jun 27 2006, 07:56 PM
- - djellison   You see - this is why we need you around here I ...   Jun 27 2006, 08:45 PM
- - edstrick   A FUNDAMENTAL problem pushing Mars camera designer...   Jun 29 2006, 04:31 AM
|- - mcaplinger   QUOTE (edstrick @ Jun 28 2006, 09:31 PM) ...   Jun 29 2006, 06:37 AM
- - edstrick   I stand corrected. My understanding remains that ...   Jun 29 2006, 08:13 AM
- - djellison   Yes - HiRISE does TDI - (128 lines I think) Essen...   Jun 29 2006, 08:58 AM
- - edstrick   The absolutely critical thing with a camera like H...   Jun 29 2006, 09:23 AM

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