The West Valley Route |
The West Valley Route |
Mar 22 2009, 09:04 AM
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#16
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Senior Member Group: Moderator Posts: 4279 Joined: 19-April 05 From: .br at .es Member No.: 253 |
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Mar 22 2009, 10:13 AM
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#17
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Senior Member Group: Members Posts: 2492 Joined: 15-January 05 From: center Italy Member No.: 150 |
Wow! and is also a big one!
-------------------- I always think before posting! - Marco -
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Mar 22 2009, 10:36 AM
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#18
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Senior Member Group: Moderator Posts: 4279 Joined: 19-April 05 From: .br at .es Member No.: 253 |
Indeed. Anybody wants to give a try on calculating its diameter?
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Mar 22 2009, 05:25 PM
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#19
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The Poet Dude Group: Moderator Posts: 5551 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
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Mar 22 2009, 05:42 PM
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#20
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Senior Member Group: Moderator Posts: 3431 Joined: 11-August 04 From: USA Member No.: 98 |
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Mar 22 2009, 05:53 PM
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#21
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Member Group: Members Posts: 399 Joined: 28-August 07 From: San Francisco Member No.: 3511 |
Wow! and is also a big one! Sorry if discussed before, but are the DDs considered a threat as well as a benefactor to Spirit ? Would one have enough force to dislodge or even keel over our rover? I seem to remember a discussion concerning how "lightweight" the DDs were despite their spectacular appearance... can't find that thread just now... thanks in advance Eoin -------------------- 'She drove until the wheels fell off...'
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Mar 22 2009, 07:03 PM
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#22
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Senior Member Group: Members Posts: 4256 Joined: 17-January 05 Member No.: 152 |
Anybody wants to give a try on calculating its diameter? Looking at some orbital images and trying to identify some features at comparable distances, I estimate that devil was about 1400 m away. That gives a diameter of very roughly 130 m. It could be quite a bit bigger if farther, smaller if closer. I really hope that as we move closer to the plains we will be more likely to get hit by strong wind gusts. I understand that even a direct hit by a DD would be harmless to the rover, but would no doubt restore us to a showroom-floor sparkling-clean deck! |
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Mar 22 2009, 07:12 PM
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#23
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Senior Member Group: Moderator Posts: 2262 Joined: 9-February 04 From: Melbourne - Oz Member No.: 16 |
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Mar 22 2009, 07:53 PM
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#24
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Senior Member Group: Members Posts: 3516 Joined: 4-November 05 From: North Wales Member No.: 542 |
Can we see the dust devil (or another one) there too? (Farther away, fainter, and a bit to the right of its position in the navcam view.)
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Mar 22 2009, 08:29 PM
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#25
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Senior Member Group: Moderator Posts: 3431 Joined: 11-August 04 From: USA Member No.: 98 |
There was a dust devil on the right side of that mosaic; it's subtle in this terrific natural-color version. Not related to the big one, though, since it was taken at a different time.
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Mar 23 2009, 01:38 AM
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#26
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Member Group: Members Posts: 279 Joined: 19-August 07 Member No.: 3299 |
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Mar 23 2009, 10:12 AM
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#27
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Member Group: Members Posts: 593 Joined: 20-April 05 Member No.: 279 |
It could be quite a bit bigger if farther, smaller if closer. And for the Father Dougal's amongst us: Small v. far away Andy |
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Mar 23 2009, 01:46 PM
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#28
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Special Cookie Group: Members Posts: 2168 Joined: 6-April 05 From: Sintra | Portugal Member No.: 228 |
Beautiful view towards the west on sol 1852. Indeed a beauty James! Have a doubt here, visiting your site, you make reference to Thera crater...I must be missing something here but aren't we looking in the opposite direction of it? -------------------- "Ride, boldly ride," The shade replied, "If you seek for Eldorado!"
Edgar Alan Poe |
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Guest_Oersted_* |
Mar 23 2009, 02:04 PM
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#29
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Guests |
Sorry if discussed before, but are the DDs considered a threat as well as a benefactor to Spirit ? Would one have enough force to dislodge or even keel over our rover? I seem to remember a discussion concerning how "lightweight" the DDs were despite their spectacular appearance... can't find that thread just now... thanks in advance Eoin The atmospheric pressure on Mars is only about one-hundredth of that on Earth, so no way a dust devil could tilt the rover. But if one could dislodge some of the dust on the panels that would be very welcome! |
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Mar 23 2009, 02:09 PM
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#30
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Forum Contributor Group: Members Posts: 1374 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11 |
I hope the old girl is not out of breath after driving 13 m !
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