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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Jul 8 2007, 09:51 AM
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#2
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Founder Group: Chairman Posts: 14449 Joined: 8-February 04 Member No.: 1 |
Yes - cleaning is usually thought to be due to high winds
Dust storms are thought to cause high winds Thus - major cleaning and dust storms tend to be closely related. Maybe it's something to do with the change in illumination - BUT - Opportunity looks utterly A1 clean right now. Doug |
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Jul 8 2007, 10:02 AM
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#3
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 Senior Member Group: Members Posts: 2922 Joined: 14-February 06 From: Very close to the Pyrénées Mountains (France) Member No.: 682 |
QUOTE (djellison @ Jul 8 2007, 11:51 AM)  Yes - cleaning is usually thought to be due to high winds Dust storms are thought to cause high winds Doug I don't know how it works, a meteorologist can help on this, but I was thinking of a kind of depression created by the storm that would have led it by a few hours. Does it make sense? -------------------- |
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alan Spirit cleaner? Jun 18 2007, 06:44 AM
akuo The lighting would appear to be almost exactly the... Jun 18 2007, 09:06 AM jmjawors Just saw the latest images and rushed here to find... Jun 18 2007, 11:42 AM centsworth_II The definitive answer would come in the form of a ... Jun 18 2007, 03:33 PM fredk Yes! We're above 600 Whr!!
htt... Jun 19 2007, 03:50 AM
mhoward QUOTE (fredk @ Jun 19 2007, 03:50 AM) Yes... Jun 19 2007, 04:12 AM dvandorn When you look at the rocks in specific and the sur... Jun 19 2007, 04:11 AM dvandorn Oh, yes, and I forgot to add: Above 600 Whr!... Jun 19 2007, 04:13 AM slinted This is great news! That great a percentage in... Jun 19 2007, 04:33 AM CosmicRocker Alan: You're the man with the first good news... Jun 19 2007, 04:33 AM centsworth_II QUOTE (CosmicRocker @ Jun 19 2007, 12:33 ... Jun 20 2007, 02:43 PM Jeff7 Most excellent news. Jun 19 2007, 05:03 AM ElkGroveDan OK where's Helvick? We want to see that chart... Jun 19 2007, 06:04 AM djellison Looks like a self portrait was put in work yesterd... Jun 19 2007, 08:08 AM akuo The solar cells looks patchy, like the wind cleane... Jun 19 2007, 08:22 AM helvick We're well past the edge of my charts now and ... Jun 19 2007, 08:41 AM elakdawalla I was actually wondering about that. How finely c... Jun 20 2007, 03:04 PM alan This is the best I could get out of Autostitch
Jun 20 2007, 07:16 PM dvandorn Yeah -- you can see she's cleaner than she was... Jun 20 2007, 08:00 PM ElkGroveDan As I recall these events aren't isolated ones.... Jun 20 2007, 10:54 PM Tom Tamlyn I hope your prediction is correct, but wasn't ... Jun 20 2007, 11:45 PM climber QUOTE (Tom Tamlyn @ Jun 21 2007, 01:45 AM... Jun 20 2007, 11:52 PM edstrick "I doubt they get engineering data at a high ... Jun 21 2007, 07:22 AM helvick I've asked about the engineering data before (... Jun 21 2007, 09:11 AM Analyst QUOTE (helvick @ Jun 21 2007, 09:11 AM) A... Jun 22 2007, 04:00 PM CosmicRocker That doesn't make sense to me. I would have t... Jun 22 2007, 05:45 AM RobertEB I was looking at the picture above and I noticed t... Jun 22 2007, 02:00 PM Tom Tamlyn Pete Theisinger was asked about closing the solar ... Jun 22 2007, 02:14 PM centsworth_II QUOTE (Tom Tamlyn @ Jun 22 2007, 10:14 AM... Jun 22 2007, 02:38 PM RobertEB I don't know if they lock in place or not. I w... Jun 22 2007, 03:00 PM fredk QUOTE (RobertEB @ Jun 22 2007, 03:00 PM) ... Jun 22 2007, 05:15 PM dilo Well, seriously, I think that now that power is up... Jun 23 2007, 01:34 PM djellison While they have one mobile rover, it's unlikel... Jun 23 2007, 04:16 PM alan Must be getting windy, a few more clean patches ar... Jun 24 2007, 05:42 AM jaredGalen All this cleaning might be timely but hopefully no... Jun 27 2007, 07:00 PM dvandorn Well, isn't it almost a truism that semi-globa... Jun 27 2007, 07:19 PM BrianL QUOTE (dvandorn @ Jun 27 2007, 01:19 PM) ... Jun 27 2007, 07:34 PM David QUOTE (dvandorn @ Jun 27 2007, 07:19 PM) ... Jun 27 2007, 09:09 PM helvick Assume for a moment that the dust on the panels ha... Jun 27 2007, 09:57 PM fredk Those numbers are interesting. When the tau incre... Jun 27 2007, 10:15 PM djellison No - thats what happens, the direct drops, the ind... Jun 27 2007, 10:26 PM helvick As Doug says that is what happens - as the dust le... Jun 27 2007, 10:40 PM Tom Tamlyn Fascinating to read in the Applebaum & Landis ... Jun 28 2007, 03:33 AM dvandorn Or, more specifically, what was the greatest tau v... Jun 28 2007, 04:07 AM fredk Spirit's Solar Power Levels Continue to Rise
A... Jun 28 2007, 04:09 AM Analyst QUOTE (fredk @ Jun 28 2007, 04:09 AM) Spi... Jun 28 2007, 09:53 AM Jeff7 Most excellent indeed.
The new Mars forum questi... Jun 28 2007, 04:53 AM edstrick Tau values were made by Viking Landers based on pr... Jun 28 2007, 05:57 AM helvick I don't have precise data but again there are ... Jun 28 2007, 06:36 AM helvick 738 Whr means she is still losing about 25% due to... Jun 28 2007, 11:34 AM dvandorn QUOTE (helvick @ Jun 28 2007, 06:34 AM) 7... Jun 28 2007, 04:01 PM helvick QUOTE Tau measurements estimating the amount of du... Jun 28 2007, 11:45 AM centsworth_II If Spirit makes it to next winter, I think they... Jun 28 2007, 06:15 PM djellison They didnt want to do a rush job last time - remem... Jun 28 2007, 06:24 PM centsworth_II QUOTE (djellison @ Jun 28 2007, 02:24 PM)... Jun 29 2007, 05:53 AM djellison Well - with a stuck wheel they can't really cl... Jun 29 2007, 08:37 AM BrianL Even if the slope is rock with no significant sand... Jun 29 2007, 12:55 PM djellison I'd say so, yeah. You drop not only 18% of you... Jun 29 2007, 01:05 PM fredk But fortunately getting to a steeper slope may not... Jun 29 2007, 02:54 PM centsworth_II QUOTE (fredk @ Jun 29 2007, 10:54 AM) But... Jun 29 2007, 03:07 PM centsworth_II Strategy for getting Spirit on 25 degree slope:
Cl... Jun 29 2007, 03:04 PM helvick The best they could do for the day that insolation... Jun 29 2007, 03:14 PM centsworth_II QUOTE (helvick @ Jun 29 2007, 11:14 AM) .... Jun 29 2007, 03:58 PM brellis The subject of tilt begs the question, why don... Jun 29 2007, 05:28 PM djellison The dust probably wouldn't come off if you til... Jun 29 2007, 05:39 PM Tom Tamlyn Further to the same point, the deployment motors w... Jun 29 2007, 06:15 PM brellis QUOTE (Tom Tamlyn @ Jun 29 2007, 11:15 AM... Jun 29 2007, 09:11 PM alan Cleaned Again: Spirit Self Portrait
http://marswa... Jun 30 2007, 05:14 AM Nix woaw.. she looks good!
Nico Jun 30 2007, 06:28 AM Shaka But she could look better! Come on you devils... Jun 30 2007, 07:19 AM kenny I never appreciated how variable the dust covering... Jun 30 2007, 08:34 AM Oersted Looks like the cleaning has been more efficient in... Jun 30 2007, 09:35 AM CosmicRocker Being from sol 1229, I think that self portrait wa... Jun 30 2007, 05:37 PM fredk From the latest Planetary Society report, this des... Jul 1 2007, 10:43 PM climber QUOTE (fredk @ Jul 2 2007, 12:43 AM) From... Jul 8 2007, 09:42 AM Shaka Yes, only a devil would tidy up so haphazardly. Jul 2 2007, 12:59 AM TheChemist Looks like some guys will finally get actual data ... Jul 2 2007, 10:53 AM alan Dust from the storm in Meridini appears to have be... Jul 4 2007, 07:16 PM hortonheardawho sol 1204 - 1244 L2 comparison of Husband Hill: Jul 4 2007, 09:29 PM Floyd Horton, that is dramatic. A layer of dust almost ... Jul 4 2007, 09:34 PM djellison Bloody hell! The way the whole area beyond t... Jul 4 2007, 09:36 PM alan Ah, that explains why the color images of the left... Jul 4 2007, 09:58 PM hortonheardawho Ah, indeed:
The right frame is 98 seconds after... Jul 4 2007, 10:50 PM fredk I'd say left to right. The gust could easily ... Jul 5 2007, 04:03 AM Pertinax Well noted indeed, and what a catch.
I was just g... Jul 5 2007, 12:32 PM PDP8E Hi All,
Is there a website of returned engineerin... Jul 6 2007, 07:36 PM Stu Giving another talk later this week and would appr... Jul 8 2007, 12:45 PM hortonheardawho QUOTE (Stu @ Jul 8 2007, 08:45 AM) Giving... Jul 8 2007, 06:08 PM Oersted Just checked out my window here on Mars, and yes, ... Jul 8 2007, 05:40 PM Stu Thanks hort, bluer it shall be I was just unsur... Jul 8 2007, 06:49 PM Ant103 New pics on the exploratorium for Spirit
Look at ... Jul 10 2007, 10:27 PM alan Yep, another cleaning event for Spirit's solar... Jul 10 2007, 10:46 PM Stephen QUOTE (alan @ Jul 11 2007, 08:46 AM) Yep,... Jul 11 2007, 09:16 AM monty python Yikes! Thats a spectacular and unique amount ... Jul 11 2007, 02:49 AM slinted Looks like the winds picked up sometime between 12... Jul 11 2007, 03:35 AM alan good eyes slinted
A comparison between 1238 and ... Jul 11 2007, 03:46 AM djellison The Silica Valley tracks have been virtually wiped... Jul 11 2007, 07:44 AM djellison 1200 sols without significant dust deposition on l... Jul 11 2007, 09:23 AM |
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