Stroupe's Slide |
Stroupe's Slide |
Jan 4 2008, 07:20 AM
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#1
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Founder Group: Chairman Posts: 14434 Joined: 8-February 04 Member No.: 1 |
Paolo's got his plunge over at Meridiani....and thanks to Ashley's driving, we now have - Stroupe's Slide here at Gusev. It took an email or two to figure out the best alliteration for it. Somehow 'Ashley's Favorable Incline' didn't quite scan, and Home Plate North is just so..dull. And where better to slide, than home plate! Even after as much careful planning ( that some suggested was too conservative ) it was still a major effort to get Spirit safe in time - so kudos to Ashley Stroupe and her colleagues for dealing with a couple of Mars jet-lagged weeks and giving us a shot at celebrating a 5th Martian Birthday.
Get comfortable, we may be here some time Doug |
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Feb 19 2008, 03:53 PM
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#2
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Senior Member Group: Members Posts: 1592 Joined: 14-October 05 From: Vermont Member No.: 530 |
I thought that they were waiting to increase the tilt to max until the sun was low enough in the sky to justify it, not waiting for power levels to drop.
Ahh yes, as the update says: QUOTE The winter Sun continues to dip lower in the sky. As of sol 1450 (Jan. 31, 2008), the noontime Sun was 64.6 degrees above the northern horizon, indicating that the optimal northern tilt of the rover deck would be 25.4 degrees from vertical (90 - 64.6 = 25.4). Spirit's current northward tilt is 22 degrees, relatively close to optimal. By mid-February, the optimal tilt will increase to about 28 degrees, the maximum Spirit is anticipated to be able to achieve. That's about the time when rover drivers plan to have the rover complete one more short drive to get into position for the winter.
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