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Last stops around Victoria, before the Long Trek
centsworth_II
post Oct 1 2008, 07:43 PM
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QUOTE (PaulM @ Oct 1 2008, 02:35 PM) *
...it was decided to alternate between driving forwards and driving backwards every few SOLs to even out the wear on a Rover's 6 wheels.

Because, I think, it ensures even distribution of lubricant.
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climber
post Oct 1 2008, 08:33 PM
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QUOTE (ustrax @ Oct 1 2008, 09:16 PM) *
[attachment=15933:1N275912...1818L0M2.jpg]

The Speedy Turtle striked again...


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ElkGroveDan
post Oct 1 2008, 08:55 PM
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QUOTE (ustrax @ Oct 1 2008, 12:16 PM) *
[attachment=15933:1N275912...1818L0M2.jpg]

I'll say it's a large wooden badger flying off a catapult.



Run away! run away!


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djellison
post Oct 1 2008, 08:59 PM
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Clearly a donkey leaving a trebuchet.
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RoverDriver
post Oct 1 2008, 09:31 PM
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QUOTE (PaulM @ Oct 1 2008, 11:35 AM) *
I remember reading that it was thought that one of Spirit's front wheels developed a problem because the front wheels on Rovers are most highly stressed. I thought that for this reason that during Opportunity's trek to Victoria it was decided to alternate between driving forwards and driving backwards every few SOLs to even out the wear on Opportunity's 6 wheels.

Am I correct?


I think that the rocker bogie system is designed to equally distribute the load on all 6 wheels on flat terrain. The reason for switching between forward and backward driving was to equally distribute lubricant and wear.

Paolo


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RoverDriver
post Oct 1 2008, 09:32 PM
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QUOTE (djellison @ Oct 1 2008, 10:45 AM) *
Uphill, or when either front wheel is locked smile.gif


Correct! I will come up with some more trivia.

Paolo


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BrianL
post Oct 1 2008, 09:36 PM
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I've been thinking for awhile that Paolo needs a special status more befitting than Junior Member and now I have it...

Quizmaster! wink.gif
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RoverDriver
post Oct 1 2008, 09:36 PM
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QUOTE (ustrax @ Oct 1 2008, 11:16 AM) *
An image artifact?
And here I was thinking that crazy swiss rocketman had made it this far... sad.gif
[attachment=15933:1N275912...1818L0M2.jpg]

Are you sure Doug?...
tongue.gif


This is a consequence of of our fast driving. It is a pebble that was squashed between one of the wheels and the terrain.

Paolo


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mike
post Oct 2 2008, 12:00 AM
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QUOTE (djellison @ Oct 1 2008, 12:01 PM) *
Were taken at the same time - and the feature is only in one - so it is an imaging artifact, not a real object.


Out of curiosity.. What sort of things would cause this in particular to appear in an image?
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CosmicRocker
post Oct 2 2008, 03:30 AM
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QUOTE (tim53 @ Oct 1 2008, 10:12 AM) *
The file with "25cm" in the filename is at the full resolution of the HiRISE mosaic. The Navcam overhead is rendered at 1cm/pixel for the planning tool, but unless folks can open something like Jpeg 2000 format, putting a 1cm/pixel zoom of the map on the rover website would be difficult. Easy to produce, though. ...

Thanks, Tim. Although I couldn't see any file name containing "25 cm," my observation was in error. I was using someone else's computer last night and it apparently had a very old or faulty monitor. Now that I am back on my machine, the maps look great. smile.gif I was certainly not trying to suggest that we needed 1 cm/px route maps.

QUOTE (tim53 @ Oct 1 2008, 10:26 AM) *
... the "purgatoids" ...
I love it! I am going to work very hard to add that word to my vocabulary. wink.gif


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Guest_Oersted_*
post Oct 2 2008, 08:42 AM
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QUOTE (RoverDriver @ Oct 1 2008, 11:36 PM) *
This is a consequence of of our fast driving. It is a pebble that was squashed between one of the wheels and the terrain.

Paolo


Wauw, you are really putting the pedal to the metal on Oppy, aren't you! - Was flying debris captured like that before, since you can so comfortably identify it, or is it experience with the Earth-bound rovers at the JPL rock garden that makes you know it?
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Ant103
post Oct 2 2008, 09:05 AM
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Sol 1666 panorama updated smile.gif



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remcook
post Oct 2 2008, 09:12 AM
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It's great to see some trekking again and some new vistas smile.gif
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djellison
post Oct 2 2008, 11:16 AM
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QUOTE (Oersted @ Oct 2 2008, 09:42 AM) *
Was flying debris captured like that before,


Paolo was being sarcastic smile.gif
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mhoward
post Oct 2 2008, 01:11 PM
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QUOTE (djellison @ Oct 2 2008, 04:16 AM) *
Paolo was being sarcastic smile.gif


It made me laugh; I was almost certain that Paolo was joking. But then I had to stop and think for a moment. Yes, I'm pretty sure he's joking. smile.gif

Seriously, I imagine its just a random cosmic ray hit. Right?
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