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Heatshield |
 Dec 23 2004, 04:31 AM
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#31
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Rover Driver  Group: Members Posts: 109 Joined: 2-May 04 From: Litchfield Park, Arizona (Phoenix area) Member No.: 71  |
Boy, do I agree with you. They seem to have really precise control over positioning of the rovers except on big slopes and in deep sand. They can get as close as they want. It's not like the thing is going to attack them. Now the Martian with the raygun behind it........
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Dec 23 2004, 05:50 AM
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#32
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 Senior Member Group: Members Posts: 1281 Joined: 18-December 04 From: San Diego, CA Member No.: 124 |
Awesome color mosaic - and Happy Birthday!
-------------------- Lyford Rome
"Zis is not nuts, zis is super-nuts!" Mathematician Richard Courant on viewing an Orion test |
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Dec 23 2004, 07:17 AM
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#33
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 Senior Member Group: Members Posts: 2228 Joined: 1-December 04 From: Marble Falls, Texas, USA Member No.: 116 |
QUOTE (azstrummer @ Dec 22 2004, 10:31 AM) ...based on how bent up this heatshield is...the thing came down sideways so there might be quite a deep hole it made there. It really does look as if it impacted sideways, but the fact that it is so bent up suggests it's compressive strength on impact was less than the compressive strength of the surface it encountered. If this area is anything like what Opportunity has seen elsewhere on the plains, the soil is only a few centimeters thick, at the most. Under the soil is bedrock. I think the weaker heat shield deformed when it landed, absorbing much of the energy, and creating a crater no more than 10-30 cm deep. This is going to be a pretty interesting site to investigate. -------------------- ...Tom
I'm not a Space Fan, I'm a Space Exploration Enthusiast. |
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Dec 23 2004, 07:25 AM
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#34
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 Junior Member Group: Members Posts: 95 Joined: 10-March 04 Member No.: 54 |
Happy Birthday, Doug!
 Tom |
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Dec 23 2004, 08:07 AM
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#35
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 The Poet Dude Group: Moderator Posts: 5551 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
Happy Birthday Doug!
In honour of all your outstanding work, I vote we - unofficially! - christen the crater made by the impacting heatshield "Doug's Birthday Crater". Anyone second that? Stu -------------------- |
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Dec 23 2004, 08:28 AM
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#36
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 Member Group: Members Posts: 710 Joined: 28-September 04 Member No.: 99 |
QUOTE (Stu @ Dec 23 2004, 08:07 AM) In honour of all your outstanding work, I vote we - unofficially! - christen the crater made by the impacting heatshield "Doug's Birthday Crater". How about 'Doug's Dig' for that trench? Happy Birthday.
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Dec 23 2004, 08:59 AM
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#37
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Founder Group: Chairman Posts: 14432 Joined: 8-February 04 Member No.: 1 |
My point was - you dont want to go up to it when that mylar might flap around and hit the PMA. Worse -touch it with the IDD and it falls over. It could happen. Quite how a 40kg off piece of heatsheild has ended up on it's end is anyones guess - and it looks quite precarious to me. Especially when there' a nice big bit sat flat on the ground that can do no harm to anyone
Thanks for the Birthday wishes chaps Doug (PS - How about 'Dougs Ditch' ? ) |
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Dec 23 2004, 07:17 PM
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#38
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 Member Group: Members Posts: 753 Joined: 23-October 04 From: Greensboro, NC USA Member No.: 103 |
Since two of the three craters that Oppy has studied so far (Eagle, Fram, Endurance) began with E, why not simply and elegantly name this crater "Ellison"?
-------------------- Jonathan Ward
Manning the LCC at http://www.apollolaunchcontrol.com |
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Dec 23 2004, 08:28 PM
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#39
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The Poet Dude Group: Moderator Posts: 5551 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
QUOTE (ilbasso @ Dec 23 2004, 07:17 PM) why not simply and elegantly name this crater "Ellison"? ...because then people over here in the UK will think it was named after the ex-Brookside "actress", Jennifer Ellison, who couldn't act her way out of a crisp packet, and is best known for rather, er, revealing photo-shoots in lads mags...  Think we're better off with the word "Doug" in the title. -------------------- |
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Dec 23 2004, 09:18 PM
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#40
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 The Insider Group: Members Posts: 669 Joined: 3-May 04 Member No.: 73 |
HAVE A WONDERFUL BIRTHDAY, DOUG!!!
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Dec 23 2004, 09:25 PM
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#41
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Member Group: Members Posts: 710 Joined: 28-September 04 Member No.: 99 |
What happened here? Bouncing airbags, bouncing heatshields?
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Dec 23 2004, 09:27 PM
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#42
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Member Group: Members Posts: 710 Joined: 28-September 04 Member No.: 99 |
The heatshield from a different perspective:
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Dec 23 2004, 11:15 PM
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#43
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Member Group: Members Posts: 470 Joined: 24-March 04 From: Finland Member No.: 63 |
One more navcam picture.
Not much of a hole at all. Oppy could dig something like that with its wheels. 
-------------------- Antti Kuosmanen
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Dec 23 2004, 11:18 PM
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#44
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Founder Group: Chairman Posts: 14432 Joined: 8-February 04 Member No.: 1 |
Ahh - see, there's an 'Ellison' Crater on the moon. (really - it's just around the far side - google for it
)Doug |
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Dec 23 2004, 11:22 PM
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#45
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The Insider Group: Members Posts: 669 Joined: 3-May 04 Member No.: 73 |
I think we're not seeing much of the hole because of the bedrock so close to the surface. There's probably just a few inches of soil and blueberries, that's pretty much it. The heatshield was fairly light, and when it hit the ground looks like the aluminum foil insert broke away from the rest... Sort of like tossing a pie plate to a concrete covered by a thin layer of sand...
That's a bit different from the Genesis crash, which landed into a fairly soft soil (mud). |
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