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Pancam Filter Issues, Sol 673 |
 Dec 16 2005, 10:20 PM
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 Senior Member  Group: Members Posts: 1887 Joined: 20-November 04 From: Iowa Member No.: 110  |
Uh, oh, now the filter wheel is acting up
http://qt.exploratorium.edu/mars/opportuni...KCP2425L7M1.JPG |
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Jan 16 2006, 06:05 PM
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#2
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Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1 |
Dragging up an old thread, but I've spoken to Jim Bell about this and the root cause was that the filter wheel wasnt heated enough. It was an early morning sequence, and the thermal system engineers did not think that the wheel would be as cold as it was, so they didnt use the heater. It turned out that it was JUST a little bit too cold and so there was some 'stiction'. The right filter wheel doesnt stick until a tiny bit colder than the left wheel, and just by chance, the temperature at the time was between the two.
No harm done, and the wheel has been fine ever since, they've just adjusted the thermal models and reshot the sequence later. Doug |
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alan Pancam Filter Issues, Sol 673 Dec 16 2005, 10:20 PM
Bill Harris Well, it's like the 'other Emily L' (L... Dec 16 2005, 11:33 PM slinted Opportunity looks to be having some trouble with h... Dec 17 2005, 02:09 AM CosmicRocker I saw those when I updated today. It was scary to... Dec 17 2005, 07:48 AM Jeff7 I guess old age is starting to really set in with ... Dec 17 2005, 07:55 AM edstrick It sounds like a temperature dependent problem, ma... Dec 17 2005, 08:22 AM
sranderson QUOTE (edstrick @ Dec 17 2005, 02:22 AM)It so... Dec 17 2005, 03:29 PM tty QUOTE (sranderson @ Dec 17 2005, 05:29 PM)Mos... Dec 17 2005, 10:09 PM sranderson QUOTE (tty @ Dec 17 2005, 04:09 PM)The bathtu... Dec 18 2005, 04:46 PM tty QUOTE (sranderson @ Dec 18 2005, 06:46 PM)Act... Dec 20 2005, 11:23 AM sranderson QUOTE (tty @ Dec 20 2005, 05:23 AM)That does ... Dec 21 2005, 05:23 AM djellison Spirit's wheel (the Sticky FR wheel) is actual... Dec 17 2005, 03:35 PM sranderson QUOTE (djellison @ Dec 17 2005, 09:35 AM)Spir... Dec 17 2005, 03:54 PM general RE: Pancam Filter Issues, Sol 673 Dec 17 2005, 06:27 PM DEChengst I wonder what would happen to Pancam if this probl... Dec 17 2005, 10:19 PM lyford general
Oppy looks like a Swiss pirate with that ... Dec 17 2005, 10:33 PM dot.dk QUOTE (DEChengst @ Dec 17 2005, 10:19 PM)I wo... Dec 17 2005, 10:52 PM edstrick Note there was one early-mission failure, maybe ev... Dec 18 2005, 06:23 AM mike As my good friend Yogi Berra once said, "It a... Dec 18 2005, 08:17 PM Myran Nope it isnt over yet, theres more working cameras... Dec 18 2005, 08:50 PM djellison You've had to have a failure of 4 cameras to k... Dec 19 2005, 10:31 AM Marcel QUOTE (djellison @ Dec 19 2005, 10:31 AM)or p... Dec 19 2005, 01:22 PM DEChengst QUOTE (Marcel @ Dec 19 2005, 02:22 PM)I can i... Dec 19 2005, 05:27 PM Edward Schmitz QUOTE (DEChengst @ Dec 19 2005, 10:27 AM)Dunn... Dec 20 2005, 01:54 AM CosmicRocker I'm encouraged by the fact that the filter whe... Dec 20 2005, 05:54 AM odave If they are using a full encoder on the filter whe... Dec 20 2005, 01:06 PM CosmicRocker QUOTE (sranderson @ Dec 18 2005, 10:46 AM)...... Dec 21 2005, 05:28 AM Airbag Thanks for following up on that issue Doug; good t... Jan 16 2006, 07:12 PM |
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