Eine Kleine Nacht Foto?, Spirit taking night shots again? |
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Eine Kleine Nacht Foto?, Spirit taking night shots again? |
 Mar 24 2005, 05:01 AM
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#1
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 Senior Member  Group: Members Posts: 1281 Joined: 18-December 04 From: San Diego, CA Member No.: 124  |
 Meteor? Moon? Orbiter? Cosmic Ray? (I was careful to spell the thread name correctly, don't want to attract any web bots searching for N*ckt Fotos....) 
-------------------- Lyford Rome
"Zis is not nuts, zis is super-nuts!" Mathematician Richard Courant on viewing an Orion test |
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Mar 24 2005, 05:49 AM
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#2
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 Senior Member Group: Members Posts: 4246 Joined: 17-January 05 Member No.: 152 |
That's pancam R8, so it's a daytime shot, but I don't know what of...
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Mar 24 2005, 07:14 AM
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#3
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Senior Member Group: Members Posts: 2998 Joined: 30-October 04 Member No.: 105 |
QUOTE web bots searching for Na**t Fotos... Uh, I think you just gave the bots fodder...  My first thought of this image is "star trails". Near-equatorial, near the horizon. Several minute time exposure, with a meteor and cosmic ray hits. --Bill -------------------- |
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Mar 24 2005, 08:38 AM
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#4
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 Member Group: Members Posts: 356 Joined: 12-March 05 Member No.: 190 |
 I suspect it is a not star trails (they're perfectly straight!) but a dark frame taken in order to characterize "hot pixels" and or thermally generated background charge. (with the occasional cosmic ray hit too of course.)
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Mar 24 2005, 08:47 AM
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#5
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Member Group: Admin Posts: 468 Joined: 11-February 04 From: USA Member No.: 21 |
Yup, a 0 second exposure image which can help them characterize the vertical 'readout smear'. There is another image taken shortly before which I think is another type of calibration image, to determine the responsivity of each pixel.
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Mar 24 2005, 09:02 AM
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#6
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Member Group: Members Posts: 877 Joined: 7-March 05 From: Switzerland Member No.: 186 |
QUOTE (lyford @ Mar 24 2005, 05:01 AM) (I was careful to spell the thread name correctly, don't want to attract any web bots searching for Nackt Fotos....)  bullsh... I thought it's your German and you mean "nac(k)t"  But it's so, in the travelogue from my coached page occur once "Nac(k)tbaden" and then it was for a while one of the first position in the page statistic (search items) But today no more, it must got around that there is nothing so hot. -------------------- |
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Mar 24 2005, 09:11 AM
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#7
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Founder Group: Chairman Posts: 14432 Joined: 8-February 04 Member No.: 1 |
These are all calibration images - and the auto-stretch that gets dumped onto all images going on the JPL or Exploratorium webpages makes them look like hell - when in actual fact they're little more than a few slightly off-black pixels.
Doug |
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