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 19 2007, 04:59 AM
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#102
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Senior Member Group: Members Posts: 4252 Joined: 17-January 05 Member No.: 152 |
Glad you liked my comparisons, Viking. Here's one more.
Sol 1255 and 1257. It seems the strong winds are continuing. You can see that much of the dust on the hazcams has been cleared away. But if you look closely at this animation, you can see movement on the ground: If you look at the area I circled in black in the image below, you can see light splotches that move collectively towards the lower right, which corresponds to roughly towards the south. What's really remarkable is if you look in the area I circled in white, you can actually see tiny ripples moving again towards the lower right. I'm quite sure this isn't just due to different lighting, since these images were taken within 30 seconds local time of each other, and tau was only slightly higher on 1257. To my recollection this is the first observation of moving ripples. Even while the rovers face potentially their greatest threat, they can surprize us with amazing results. |
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Jul 29 2007, 04:14 PM
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#103
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Member Group: Members Posts: 877 Joined: 7-March 05 From: Switzerland Member No.: 186 |
If you look at the area I circled in black in the image below, you can see light splotches that move collectively towards the lower right, which corresponds to roughly towards the south. Ah Fred mentioned it already. It looks like we've had here wind from north roughly. -------------------- |
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