Wheel Trouble, ...down to 5 good wheels? |
Wheel Trouble, ...down to 5 good wheels? |
  Mar 14 2006, 12:29 AM
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#1
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Junior Member  Group: Members Posts: 90 Joined: 13-January 05 Member No.: 143  |
I hate to be the bearer of bad news, but I just heard that there is a serious problem with Spirit's right front drive actuator after yestersol's drive. (This is the actuator that had high currents in the past and led to the backward-driving strategy.) It will take awhile to evaluate the situation, but early speculation is grim.
In a worst-case scenario, they can still drag the bum wheel along, but don't expect another summit view. Best-case scenario would be a rock or debris jammed in the wheel. This is a heads-up, sorry I can't really give more info at this time. I still thought you all would like to know. |
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Mar 15 2006, 08:24 PM
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#2
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 Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
Squyres did not mention the wheel trouble in his talk today about Spirit. In fact he said at the end "Spirit has just completed a drive in the direction of Oberth and Korolev, we hope in a week or so to be on one of those nice toasty slopes that will allow us to survive another winter at Mars."
For what that's worth. --Emily -------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
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Mar 15 2006, 09:07 PM
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#3
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 Senior Member Group: Members Posts: 1229 Joined: 24-December 05 From: The blue one in between the yellow and red ones. Member No.: 618 |
QUOTE (elakdawalla @ Mar 15 2006, 10:24 AM)  Squyres did not mention the wheel trouble in his talk today about Spirit. In fact he said at the end "Spirit has just completed a drive in the direction of Oberth and Korolev, we hope in a week or so to be on one of those nice toasty slopes that will allow us to survive another winter at Mars." For what that's worth. --Emily It's not exactly the kind of note a scientific 'knight in armor' wants to conclude his latest progress report with, Emily. He would say it's too soon to evaluate the problem, so 'not worth mentioning' today. Fair enough, I suppose, but I'll bet he's wishing he'd made an update last week at his Mission to Mars site. Then it could have been entirely upbeat, now... Obviously, those static detents, Mars_Armer described are doing their job too well, the bad wheel has not budged despite that long drag.  Marcel may well be right, a protruding bedrock meeting the bad wheel might 'anchor' us fast, forcing a back-up. Might mean trickier drive programming and keeping to the sand where possible. Dam'n'Blast! Time's'a'wastin'! We've got to get North, FAST before we freeze!Don't know about those pyrotechnic charges, boys. One short-circuit or static discharge might instantly convert us into a stationary 'rover'. Better to equip MSL with a powerful rock-biting sampler that could be programmed to gnaw the leg off.  P.S. Emily, do you mind if I ask a personal question? What is your avatar a picture of? I've guessed 'dented daisy', 'tattered tutu', 'mutant ephyra', but I'm still unsure. Hope the weather's fine in Houston. -------------------- My Grandpa goes to Mars every day and all I get are these lousy T-shirts!
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| Guest_AlexBlackwell_* |
Mar 15 2006, 09:10 PM
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#4
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Guests |
QUOTE (Shaka @ Mar 15 2006, 09:07 PM) P.S. Emily, do you mind if I ask a personal question? What is your avatar a picture of? I've guessed 'dented daisy', 'tattered tutu', 'mutant ephyra', but I'm still unsure. It's a radar image of the venusian surface from Magellan. |
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Mar 15 2006, 09:49 PM
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#5
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Senior Member Group: Members Posts: 1229 Joined: 24-December 05 From: The blue one in between the yellow and red ones. Member No.: 618 |
QUOTE (AlexBlackwell @ Mar 15 2006, 11:10 AM) It's a radar image of the venusian surface from Magellan. Awesome, AB. I see the obvious link with Venus,(Men are from Mars...), but what is the actual structure? A volcano or something? Anywhere I can see a blowup of the pic? -------------------- My Grandpa goes to Mars every day and all I get are these lousy T-shirts!
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Mar 15 2006, 10:20 PM
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#6
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 Member Group: Members Posts: 510 Joined: 17-March 05 From: Southeast Michigan Member No.: 209 |
QUOTE (Shaka @ Mar 15 2006, 04:49 PM) I see the obvious link with Venus,(Men are from Mars...) See a previous post from Emily. Is she busy or something this week?
-------------------- --O'Dave
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mars_armer Wheel Trouble Mar 14 2006, 12:29 AM
Myran Thank you for the heads up mars_armer.
With winter... Mar 14 2006, 12:44 AM DFinfrock QUOTE (mars_armer @ Mar 14 2006, 12:29 AM... Mar 14 2006, 01:20 AM Sunspot You mean the wheel will no longer turn at all anym... Mar 14 2006, 01:27 AM
mars_armer QUOTE (Sunspot @ Mar 13 2006, 05:27 PM) Y... Mar 14 2006, 01:44 AM Shaka QUOTE (mars_armer @ Mar 13 2006, 02:29 PM... Mar 14 2006, 01:31 AM Jeff7 Yeah, let's really just hope that it's jus... Mar 14 2006, 03:28 AM BruceMoomaw Do you mean that the wheel won't turn even if ... Mar 14 2006, 04:13 AM Shaka QUOTE (BruceMoomaw @ Mar 13 2006, 06:13 P... Mar 14 2006, 05:15 AM mars_armer QUOTE (Shaka @ Mar 13 2006, 09:15 PM) Do ... Mar 14 2006, 04:37 PM RNeuhaus QUOTE (mars_armer @ Mar 14 2006, 11:37 AM... Mar 15 2006, 12:49 AM BruceMoomaw Under ordinary circumstances that is possible. In... Mar 14 2006, 05:17 AM CosmicRocker Oh, no. So that is one reason why Spirit has move... Mar 14 2006, 07:08 AM djellison QUOTE (CosmicRocker @ Mar 14 2006, 07:08 ... Mar 14 2006, 08:25 AM Bill Harris Oh well, stuff happens. We're all a lot creak... Mar 14 2006, 08:34 AM edstrick I note that both from Husband hill and from the dr... Mar 14 2006, 10:37 AM Marz Poor Spirit, just as she regains the lead in milag... Mar 14 2006, 03:43 PM tty Design lesson for future rovers: there should be s... Mar 14 2006, 05:53 PM Bob Shaw QUOTE (tty @ Mar 14 2006, 05:53 PM) Desig... Mar 14 2006, 11:06 PM RNeuhaus QUOTE (tty @ Mar 14 2006, 12:53 PM) Desig... Mar 15 2006, 01:06 AM monty python QUOTE (tty @ Mar 14 2006, 11:53 AM) Desig... Mar 15 2006, 09:49 AM Ames QUOTE (monty python @ Mar 15 2006, 09:49 ... Mar 15 2006, 10:47 AM odave QUOTE (Ames @ Mar 15 2006, 05:47 AM) But ... Mar 15 2006, 02:16 PM lyford QUOTE (monty python @ Mar 15 2006, 01:49 ... Mar 15 2006, 07:35 PM imipak QUOTE (monty python @ Mar 15 2006, 09:49 ... Mar 15 2006, 08:37 PM Bill Harris QUOTE there should be some simple and reliable mec... Mar 14 2006, 06:09 PM alan Something in there?
Mar 14 2006, 07:49 PM Toma B That's good news...if it got in, it can posibl... Mar 14 2006, 08:23 PM helvick [quote name='alan' post='45573' date='Mar 14 2006,... Mar 14 2006, 08:32 PM mars_armer QUOTE (alan @ Mar 14 2006, 11:49 AM) Some... Mar 14 2006, 09:34 PM helvick QUOTE (mars_armer @ Mar 14 2006, 09:34 PM... Mar 14 2006, 09:46 PM helvick QUOTE (helvick @ Mar 14 2006, 09:46 PM) A... Mar 14 2006, 10:05 PM Shaka QUOTE (helvick @ Mar 14 2006, 12:05 PM) A... Mar 14 2006, 10:34 PM helvick QUOTE (Shaka @ Mar 14 2006, 10:34 PM) ...... Mar 14 2006, 10:37 PM Daba QUOTE (helvick @ Mar 14 2006, 11:05 PM) A... Mar 14 2006, 11:28 PM Shaka QUOTE (mars_armer @ Mar 14 2006, 11:34 AM... Mar 14 2006, 09:46 PM Sunspot I thought it might have been a rock at first... bu... Mar 14 2006, 10:55 PM djellison At a first look - it just looks like dust to me - ... Mar 14 2006, 11:05 PM slinted There was a tiny bit of motion between sol 779 and... Mar 14 2006, 11:39 PM ElkGroveDan QUOTE (slinted @ Mar 14 2006, 11:39 PM) T... Mar 15 2006, 01:24 AM djellison That's a very odd motion - at first I thought ... Mar 15 2006, 12:11 AM Bill Harris Not at all good. Slinted's animated-GIF shows... Mar 15 2006, 04:01 AM mars_armer Looks like a drive will be attempted on Sol 781 (d... Mar 15 2006, 04:33 AM edstrick quote: "I've got a little list..... I... Mar 15 2006, 10:49 AM Burmese Yeah, wheel bearing looks likely to me, or some ot... Mar 15 2006, 01:57 PM MahFL Strange co-incidence......today the front left whe... Mar 15 2006, 06:10 PM djellison I gave a talk to some 16-18 y.o. school students t... Mar 15 2006, 06:48 PM Sunspot Still limping along:
http://qt.exploratorium.edu/... Mar 15 2006, 07:54 PM general QUOTE (Sunspot @ Mar 15 2006, 08:54 PM) S... Mar 15 2006, 08:13 PM Marcel QUOTE (Sunspot @ Mar 15 2006, 08:54 PM) S... Mar 15 2006, 08:16 PM Sunspot QUOTE (Marcel @ Mar 15 2006, 08:16 PM) Oh... Mar 15 2006, 08:50 PM Burmese Good, they aren't going to sit still and spend... Mar 15 2006, 08:05 PM djellison QUOTE (Shaka @ Mar 15 2006, 09:49 PM) I s... Mar 15 2006, 10:18 PM Shaka QUOTE (odave @ Mar 15 2006, 12:20 PM) See... Mar 15 2006, 11:00 PM ToSeek QUOTE (odave @ Mar 15 2006, 10:20 PM) See... Mar 16 2006, 05:48 PM AlexBlackwell QUOTE (ToSeek @ Mar 16 2006, 05:48 PM) Sh... Mar 16 2006, 05:50 PM helvick QUOTE (AlexBlackwell @ Mar 15 2006, 09:10... Mar 15 2006, 09:54 PM centsworth_II "Looks like she's returning to Home Plate... Mar 15 2006, 09:01 PM Bill Harris >Looks like she's returning to Home Plate
... Mar 15 2006, 10:23 PM djellison I think they moved to the nearest patch that offer... Mar 15 2006, 10:31 PM alan First impression: the right front wheel looks like... Mar 15 2006, 10:34 PM Shaka http://static.flickr.com/41/113051772_e40da86735_o... Mar 15 2006, 11:57 PM CosmicRocker QUOTE (elakdawalla @ Mar 15 2006, 02:24 P... Mar 16 2006, 04:10 AM mars_armer The wheel is definitely looking dead (open circuit... Mar 16 2006, 04:44 PM Sunspot QUOTE (mars_armer @ Mar 16 2006, 04:44 PM... Mar 16 2006, 05:28 PM ToSeek QUOTE (Sunspot @ Mar 16 2006, 05:28 PM) O... Mar 16 2006, 05:50 PM mars_armer > Well, until next summer, at least.
And don... Mar 16 2006, 06:13 PM odave I'm sure the MER engineers will be able to squ... Mar 16 2006, 06:17 PM helvick QUOTE (odave @ Mar 16 2006, 06:17 PM) I... Mar 16 2006, 06:46 PM Bob Shaw QUOTE (helvick @ Mar 16 2006, 06:46 PM) O... Mar 16 2006, 08:46 PM odave Yeah, I know that Ma'adim Vallis is not a real... Mar 16 2006, 06:55 PM Marz QUOTE (odave @ Mar 16 2006, 12:55 PM) Yea... Mar 16 2006, 09:14 PM Shaka QUOTE (Marz @ Mar 16 2006, 11:14 AM) lol ... Mar 16 2006, 10:57 PM djellison The day time temps might be getting to -60 instead... Mar 16 2006, 10:02 PM Jeff7 Can't they just use the routines they develope... Mar 16 2006, 10:46 PM djellison Spirits wheel wasnt stuck back in the 150-350 sol ... Mar 16 2006, 10:50 PM GregM . Mar 17 2006, 03:22 AM Shaka QUOTE (GregM @ Mar 16 2006, 05:22 PM) My ... Mar 17 2006, 04:32 AM RNeuhaus QUOTE (Shaka @ Mar 16 2006, 11:32 PM) As ... Mar 17 2006, 06:11 AM MahFL "We're now in a drive or die situation,... Mar 17 2006, 03:17 PM helvick QUOTE (MahFL @ Mar 17 2006, 03:17 PM) ... Mar 17 2006, 04:08 PM ToSeek QUOTE (helvick @ Mar 17 2006, 04:08 PM) P... Mar 17 2006, 06:23 PM ddeerrff QUOTE (Shaka @ Mar 16 2006, 04:57 PM) Mar... Mar 17 2006, 04:29 AM djellison <360 Whr's per sol and decreasing quite rap... Mar 17 2006, 04:09 PM mars_armer How sure are we of the 280 Whr "death" n... Mar 17 2006, 06:37 PM helvick QUOTE (mars_armer @ Mar 17 2006, 06:37 PM... Mar 17 2006, 07:21 PM Bob Shaw QUOTE (mars_armer @ Mar 17 2006, 06:37 PM... Mar 17 2006, 11:44 PM Sunspot Was Spirit supposed to drive today?
http://qt.e... Mar 17 2006, 07:08 PM djellison QUOTE (Sunspot @ Mar 17 2006, 07:08 PM) W... Mar 17 2006, 08:29 PM akuo QUOTE (Sunspot @ Mar 17 2006, 07:08 PM) W... Mar 17 2006, 08:40 PM Oersted I think we're all happy that the team was pret... Mar 18 2006, 12:00 AM nprev On the weakly positive side, I hope that the wheel... Mar 18 2006, 12:28 AM marsman In today's press release below, there are a fe... Mar 18 2006, 01:39 AM odave QUOTE (marsman @ Mar 17 2006, 08:39 PM) N... Mar 18 2006, 02:42 AM Steve QUOTE (marsman @ Mar 17 2006, 08:39 PM) N... Mar 18 2006, 02:59 AM |
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