Spirit cleaner? |
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Spirit cleaner? |
 Jul 13 2007, 05:05 AM
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#121
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 The Insider  Group: Members Posts: 669 Joined: 3-May 04 Member No.: 73  |
QUOTE (djellison @ Jul 11 2007, 11:34 AM)  THREE sheds. How many Mars environment simulators do you need, really? |
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Jul 14 2007, 01:46 AM
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#122
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Member Group: Members Posts: 258 Joined: 22-December 06 Member No.: 1503 |
I am absolutely amazed! This is the kind of weather that I thought would kill the rovers. Instead, they are going to live a lot longer! I really believe that the major limiting factors for these machines are the wheels. Nobody thought that these machines would last any where near this long, so they didn't design the wheels to last for years.
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Jul 18 2007, 10:11 PM
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#123
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 Senior Member Group: Members Posts: 1083 Joined: 19-February 05 From: Close to Meudon Observatory in France Member No.: 172 |
QUOTE (Ant103 @ Jul 11 2007, 06:10 PM) Okay  .../... We can se quickly that solar panels are more clean than the others sols ago. Dear Ant,  Superb processings ! Here is the same kind of cleaning event for the VL1 deck after the sol 1742 dust storm. Here are 3 images taken on sols 1321 - 1742 -1987 : a "before - after" sequence. Enjoy ! 
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Jul 18 2007, 10:16 PM
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#124
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Senior Member Group: Members Posts: 1083 Joined: 19-February 05 From: Close to Meudon Observatory in France Member No.: 172 |
QUOTE (fredk @ Jul 12 2007, 06:29 PM) Dramatic changes on the ground, too. Compare these pairs of navcams from sols 1239 and 1250: Dear Fredk How interesting are your comparisons ! Here is the same kind of dust removal event spread over a 6-year period for VL1 (1976-1982) : see all the dark soil patches on the drifts and the new ripples around some rocks after the sol 1742 dust storm event... Enjoy !
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Jul 19 2007, 04:59 AM
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#125
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 Senior Member Group: Members Posts: 4246 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 19 2007, 05:46 AM
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#126
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 Senior Member Group: Admin Posts: 4763 Joined: 15-March 05 From: Glendale, AZ Member No.: 197 |
Good eye Fred. Additionally you can actually see several light colored pebbles being exhumed in that large lower dark colored ripple.
-------------------- If Occam had heard my theory, things would be very different now.
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Jul 19 2007, 05:11 PM
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#127
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 Director of Galilean Photography Group: Members Posts: 896 Joined: 15-July 04 From: Austin, TX Member No.: 93 |
also, in the Viking picture you can see a rock face starting to emerge from the dune below the large rocks on the left.
-------------------- Space Enthusiast Richard Hendricks
-- "The engineers, as usual, made a tremendous fuss. Again as usual, they did the job in half the time they had dismissed as being absolutely impossible." --Rescue Party, Arthur C Clarke Mother Nature is the final inspector of all quality. |
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Jul 19 2007, 10:33 PM
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#128
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Senior Member Group: Members Posts: 1083 Joined: 19-February 05 From: Close to Meudon Observatory in France Member No.: 172 |
QUOTE (hendric @ Jul 19 2007, 07:11 PM) also, in the Viking picture you can see a rock face starting to emerge from the dune below the large rocks on the left. Sorry, but this is just an illusion. Not a rock emerging, but rather a slump in the drift material immediately in front of and to the right of center of the big boulder (named "Big Joe"). As you saw it indeed, this slump was not present when Viking 1 landed and is a good proof that modification of the surface is currently active. It may have been caused by a "Marsquake", lander vibrations while working on the surface, loose soil...
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Jul 20 2007, 04:37 AM
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#129
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 Senior Member Group: Members Posts: 2228 Joined: 1-December 04 From: Marble Falls, Texas, USA Member No.: 116 |
Congratulations to you guys watching for these changes. Slinted, fredk, and vikingmars, thanks for the revealing images and animations. They have added a new dimension to my Mars experience.
-------------------- ...Tom
I'm not a Space Fan, I'm a Space Exploration Enthusiast. |
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Jul 24 2007, 04:47 AM
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#130
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Senior Member Group: Members Posts: 2228 Joined: 1-December 04 From: Marble Falls, Texas, USA Member No.: 116 |
I didn't want to start a new topic for this, but what's up with the pancams that appeared at the exploratorium today? My update via MMB tonight has exceeded 50 MB, and it appears I am only half through it. I am getting a large number of very old images. Is Spirit cleaning low priority images from its flash memory? I could swear that I read somewhere that the 7/23 comm session returned a small amount of data from the rovers.
It finally ended after generating a large number of anaglyphs and false color images. It appears that over 80 MBs of jpegs were downloaded. "Update complete Mon Jul 23 23:36:02 CDT 2007 558 images downloaded 4 errors." 
-------------------- ...Tom
I'm not a Space Fan, I'm a Space Exploration Enthusiast. |
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Jul 24 2007, 05:37 AM
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#131
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 Senior Member Group: Members Posts: 1887 Joined: 20-November 04 From: Iowa Member No.: 110 |
Thats odd, when I checked using MMB I got no new images found. The images from 7/23 must be old images reposted.
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Jul 24 2007, 12:32 PM
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#132
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 Member Group: Members Posts: 710 Joined: 28-September 04 Member No.: 99 |
For some reason MMB's "Check for new images" doesn't detect the 2007-07-23 folder. Forcing the update with "Advanced update" worked though.
But a lot of these "new version" images are worse than the original ones! Lots of data dropouts where the old ones were complete! Totally wrecked a lot perfect generated images. 
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Jul 24 2007, 04:17 PM
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#133
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Senior Member Group: Members Posts: 1887 Joined: 20-November 04 From: Iowa Member No.: 110 |
QUOTE (OWW @ Jul 24 2007, 07:32 AM) a lot of these "new version" images are worse than the original ones! Lots of data dropouts where the old ones were complete! Totally wrecked a lot perfect generated images. Doing the advanced update from JPL using the sols of the messed up images may fix those. |
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Jul 26 2007, 11:10 AM
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#134
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Member Group: Members Posts: 710 Joined: 28-September 04 Member No.: 99 |
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Jul 26 2007, 12:28 PM
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#135
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 Member Group: Members Posts: 362 Joined: 12-June 05 From: Kiama, Australia Member No.: 409 |
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