Spirit cleaner? |
Spirit cleaner? |
Jun 18 2007, 06:44 AM
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#101
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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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Jul 11 2007, 04:01 PM
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#102
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Senior Member Group: Members Posts: 4252 Joined: 17-January 05 Member No.: 152 |
I should add that although the autostretching means you can't trust the overall brightness and colour of the images, you can trust the change in relative brightness across individual images. So that "inversion" effect, where in the early sols the sky is brighter near the horizon, but more recently and especially during the storm the sky is darker near the horizon, is real. Also we can probably trust the increased haziness of the distant peak at later sols.
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