Spirit cleaner? |
Spirit cleaner? |
Jun 18 2007, 06:44 AM
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#1
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Senior Member Group: Members Posts: 1887 Joined: 20-November 04 From: Iowa Member No.: 110 |
I've been keeping an eye on the sundial images looking for signs of a cleaning event. I've noticed some changes in the latest to be downloaded although they may be due to changes in the lighting.
A : clean patch at top of circle streak at bottom B : increased contrast from dust left behind next to mirror C : clean patch next to wire Also note the missing clumps of dust on the deck A broader view show a contrast between sol 1221 and 1227 http://207.7.139.5/mars/spirit/navcam/2007...I4P0165L0M1.JPG http://207.7.139.5/mars/spirit/navcam/2007...00P1914L0M1.JPG Has anyone heard if there has been a change in the power levels? |
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Jun 29 2007, 06:15 PM
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#2
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Member Group: Members Posts: 447 Joined: 1-July 05 From: New York City Member No.: 424 |
Further to the same point, the deployment motors were only expected to work once. Designing and building them so that they would have continued to operate reliably in the Martian environment throughout the mission would have been something else.
TTT |
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Jun 29 2007, 09:11 PM
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#3
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Member Group: Members Posts: 754 Joined: 9-February 07 Member No.: 1700 |
Further to the same point, the deployment motors were only expected to work once. Designing and building them so that they would have continued to operate reliably in the Martian environment throughout the mission would have been something else. TTT Ahh, that's the part I wasn't thinking about -- that, and using the motor continuously probably drains more power than you'd gain from tracking the sun. Then, at some unknown point the motor dies, and what if it freezes at a sunrise or sunset position. Well, I'm just glad I wasn't making that particular decision during the design process |
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