What's So Interesting? |
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What's So Interesting? |
 Apr 15 2005, 07:09 AM
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#1
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 Member  Group: Members Posts: 578 Joined: 5-November 04 From: Denmark Member No.: 107  |
Oppy hasn't moved much lately and now they are looking at the front right wheel...
  What are they doing? -------------------- "I want to make as many people as possible feel like they are part of this adventure. We are going to give everybody a sense of what exploring the surface of another world is really like"
- Steven Squyres |
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Apr 15 2005, 08:01 AM
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#2
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 Senior Member Group: Members Posts: 3419 Joined: 9-February 04 From: Minneapolis, MN, USA Member No.: 15 |
QUOTE (dot.dk @ Apr 15 2005, 02:09 AM) Oppy hasn't moved much lately and now they are looking at the front right wheel... What are they doing?  If I had to guess, I'd say they're looking at Oppy's tracks more than the wheel. I'm seeing a lot of bright compressed soil in the tracks, just like we saw at Gusev where the soil had very high salt content. I think we're seeing the dust and sand from the eroded evaporite mixed in with these soils, which is causing the spotty bright compressed soil in Oppy's tracks. I think maybe they're taking a close look at the tracks to see if that's what is, in fact, happening. Wouldn't surprise me to see a two or three day session of Mossbauer and APXS integrations on the soils around here sometime soon. Maybe even a trench. -the other Doug -------------------- “The trouble ain't that there is too many fools, but that the lightning ain't distributed right.” -Mark Twain
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| Guest_Sunspot_* |
Apr 15 2005, 08:43 AM
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#3
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Guests |
The only other time I remember seeing these hazcam subrames was when Spirit had a rock stuck in the wheel and they were unable to move....
 They've driven a little further than I thought: http://qt.exploratorium.edu/mars/opportuni...00P1607R0M1.JPG |
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Apr 15 2005, 09:38 AM
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#4
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Member Group: Members Posts: 290 Joined: 26-March 04 From: Edam, The Netherlands Member No.: 65 |
QUOTE (Sunspot @ Apr 15 2005, 08:43 AM) The only other time I remember seeing these hazcam subrames was when Spirit had a rock stuck in the wheel and they were unable to move.... They've driven a little further than I thought: http://qt.exploratorium.edu/mars/opportuni...00P1607R0M1.JPG And the wheels get deeper in the soil than before ! Toplayer seems less dense around here. Less crusty also. Younger ? Other composition ? Thicker layer (=deeper bedrock) ? |
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Apr 15 2005, 10:46 AM
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#5
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 Senior Member Group: Moderator Posts: 3431 Joined: 11-August 04 From: USA Member No.: 98 |
QUOTE (Sunspot @ Apr 15 2005, 08:43 AM) The only other time I remember seeing these hazcam subrames was when Spirit had a rock stuck in the wheel and they were unable to move.... No, there's another time when they do these subframes: when they're starting a trench. I bet dvandorn is right, though. |
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Apr 15 2005, 03:47 PM
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#6
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Junior Member Group: Members Posts: 90 Joined: 13-January 05 Member No.: 143 |
Opportunity's right front steering actuator stalled near the end of the drive on sol 433 (after 150 meters of driving). On sol 434, they backed up a meter or so and tried to straighten the wheel, but the steering motor stalled again without moving at all. Imaging doesn't show any reason for the stall. The wheel is about 7 degrees off from straight, which would still be driveable if they can't resolve the problem.
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Apr 15 2005, 03:57 PM
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#7
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Senior Member Group: Moderator Posts: 3431 Joined: 11-August 04 From: USA Member No.: 98 |
QUOTE (mars_armer @ Apr 15 2005, 03:47 PM) Opportunity's right front steering actuator stalled near the end of the drive on sol 433 (after 150 meters of driving). On sol 434, they backed up a meter or so and tried to straighten the wheel, but the steering motor stalled again without moving at all. Imaging doesn't show any reason for the stall. The wheel is about 7 degrees off from straight, which would still be driveable if they can't resolve the problem. I take it back.
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Apr 15 2005, 04:22 PM
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#8
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 Member Group: Members Posts: 524 Joined: 24-November 04 From: Heraklion, GR. Member No.: 112 |
I 'm keeping my fingers crossed. We shall overcome
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Apr 15 2005, 05:18 PM
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#9
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 Member Group: Members Posts: 562 Joined: 29-March 05 Member No.: 221 |
uh oh. I had been lulled into a false sense of security by that 18 month extension. Here's hoping that it doesn't turn out to be a permanent/major problem. At least they have experience at dragging a wheel. Looks like it could come in handy on Oppy.
Onward backwards to Victoria! |
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| Guest_Sunspot_* |
Apr 15 2005, 06:20 PM
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#10
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Damn.....I thought there might be a problem
 Lets hope they can get moving again, they're not exactly parked in a very scenic spot lol
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Apr 15 2005, 07:09 PM
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#11
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Senior Member Group: Moderator Posts: 3431 Joined: 11-August 04 From: USA Member No.: 98 |
QUOTE (Sunspot @ Apr 15 2005, 06:20 PM) Damn.....I thought there might be a problem Lets hope they can get moving again, they're not exactly parked in a very scenic spot lolYeah, kind of looks like Nebraska.  (Sorry, regional humor.) But seriously, we need to keep moving. Come on, Oppy! At least we've already been through something like this with Spirit. In fact, isn't this the same wheel that acted up on Spirit? I know it's a different component, but still, that would be an odd coincidence, if coincidence it is.
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Apr 15 2005, 07:22 PM
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#12
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 Member Group: Members Posts: 154 Joined: 17-March 05 Member No.: 206 |
This could be pretty serious. If that wheel cannot be straightened, Oppy's progress could be critically impacted! I hope they figure this out!!!
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| Guest_Sunspot_* |
Apr 15 2005, 11:36 PM
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#13
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Guests |
QUOTE (mars_armer @ Apr 15 2005, 04:47 PM) Opportunity's right front steering actuator stalled near the end of the drive on sol 433 (after 150 meters of driving). On sol 434, they backed up a meter or so and tried to straighten the wheel, but the steering motor stalled again without moving at all. Imaging doesn't show any reason for the stall. The wheel is about 7 degrees off from straight, which would still be driveable if they can't resolve the problem. I suppose driving backwards with the wheel in it's current state would be even less of a problem? |
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Apr 15 2005, 11:46 PM
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#14
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Member Group: Members Posts: 109 Joined: 9-April 04 Member No.: 66 |
mars_armer,
Where do you get this information? |
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Apr 16 2005, 12:11 AM
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#15
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Junior Member Group: Members Posts: 22 Joined: 26-March 05 Member No.: 219 |
Even with the wheel completely inoperable, they should be able to continue to drive good distances, especially with the flat terrain. But if the info is correct, this sounds like a mechanical malfunction which would be far more serious than Spirit's lubrication problem.
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