The West Valley Route - Unmanned Spaceflight.com

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The West Valley Route

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Mar 22 2009, 09:04 AM

Post #16

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Nice DD caught on action in today's navcam mosaic.

dilo View Member Profile	Mar 22 2009, 10:13 AM Post #17
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 -

Tesheiner View Member Profile	Mar 22 2009, 10:36 AM Post #18
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?

Stu

Mar 22 2009, 05:25 PM

Post #19

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Whoah... that's one seriously interesting rock Spirit was just looking at...

--------------------

mhoward View Member Profile	Mar 22 2009, 05:42 PM Post #20
Senior Member Group: Moderator Posts: 3431 Joined: 11-August 04 From: USA Member No.: 98	QUOTE (Stu @ Mar 22 2009, 11:25 AM) Whoah... that's one seriously interesting rock Spirit was just looking at... Was waiting for someone to post that. She had it in IDD range, but it looks like she decided to pass. Got places to go, apparently.

eoincampbell View Member Profile	Mar 22 2009, 05:53 PM Post #21
Member Group: Members Posts: 399 Joined: 28-August 07 From: San Francisco Member No.: 3511	QUOTE (dilo @ Mar 22 2009, 02:13 AM) 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...'

fredk View Member Profile	Mar 22 2009, 07:03 PM Post #22
Senior Member Group: Members Posts: 4246 Joined: 17-January 05 Member No.: 152	QUOTE (Tesheiner @ Mar 22 2009, 11:36 AM) 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!

jamescanvin View Member Profile	Mar 22 2009, 07:12 PM Post #23
Senior Member Group: Moderator Posts: 2262 Joined: 9-February 04 From: Melbourne - Oz Member No.: 16	Beautiful view towards the west on sol 1852. James -------------------- Twitter Please support unmannedspaceflight.com by donating here

ngunn View Member Profile	Mar 22 2009, 07:53 PM Post #24
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.)

mhoward View Member Profile	Mar 22 2009, 08:29 PM Post #25
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.

Mar 23 2009, 01:38 AM

Post #26

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QUOTE (Tesheiner @ Mar 22 2009, 04:04 AM)

That picture shows a

. Hope that Spirit will be hit so by there.

AndyG View Member Profile	Mar 23 2009, 10:12 AM Post #27
Member Group: Members Posts: 593 Joined: 20-April 05 Member No.: 279	QUOTE (fredk @ Mar 22 2009, 07:03 PM) 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

ustrax View Member Profile	Mar 23 2009, 01:46 PM Post #28
Special Cookie Group: Members Posts: 2168 Joined: 6-April 05 From: Sintra \| Portugal Member No.: 228	QUOTE (jamescanvin @ Mar 22 2009, 07:12 PM) 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

Guest_Oersted_*	Mar 23 2009, 02:04 PM Post #29
Guests	QUOTE (eoincampbell @ Mar 22 2009, 06:53 PM) 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!

MahFL View Member Profile	Mar 23 2009, 02:09 PM Post #30
Forum Contributor Group: Members Posts: 1372 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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