Whr Figures, From various sources |
Whr Figures, From various sources |
Feb 6 2006, 03:39 PM
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#1
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Founder Group: Chairman Posts: 14433 Joined: 8-February 04 Member No.: 1 |
I've been looking at the new entries at the PDS for WHR quotes, to compile as good a list of actual quoted Whr values as I can......so if you find one, add it to this thread and I'll update this post with figures....any source as long as it's an actual figure and an actual sol.
B0515 - 418 Whrs B0522 - 462 Whrs |
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Jun 30 2006, 11:41 PM
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#2
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Senior Member Group: Members Posts: 1887 Joined: 20-November 04 From: Iowa Member No.: 110 |
QUOTE For the first time on either rover, Spirit's battery heaters turned on at 8:15 a.m. local solar time on Mars on Sol 865 (June 9, 2006). The heaters activate automatically when local temperatures drop to about minus 19 degrees Celsius (minus 2 degrees Fahrenheit). The lowest allowable operating temperature is minus 20 degrees C (minus 4 degrees F.). http://marsrovers.nasa.gov/mission/status_...All.html#sol874No mention of how much power this requires. I wonder how it affects the amount of science that can be done. |
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Jul 10 2006, 06:51 AM
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#3
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Member Group: Members Posts: 444 Joined: 1-July 05 From: New York City Member No.: 424 |
>For the first time on either rover, Spirit's battery heaters turned on at
>8:15 a.m. local solar time on Mars on Sol 865 (June 9, 2006). >The heaters activate automatically when local temperatures drop to >about minus 19 degrees Celsius (minus 2 degrees Fahrenheit). In "Roving Mars," SS notes (at p. 341) that Opportunity survived at temperatures as low as -46 C (as measured in Mini-TES) the first time they tested Deep Sleep, in May 2004. In light of this, I'm confused by the recent status report which suggests that this is the first time either Rover has experienced temperature as low as -19 C. Or is the point that the temperatures had never fallen so law during daytime? Or maybe Mini-TES is colder because it's up in the mast? TTT (puzzled in NYC) |
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