Concepción, The freshest crater yet to be explored |
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Concepción, The freshest crater yet to be explored |
 Jan 27 2010, 09:30 PM
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#16
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 Senior Member  Group: Moderator Posts: 2817 Joined: 11-February 04 From: Tucson, AZ Member No.: 23  |
What data could Opportunity collect that might help pin the age down? I take it radioisotope ratios are out
-------------------- &@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io |
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Jan 27 2010, 09:54 PM
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#17
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 The Poet Dude Group: Moderator Posts: 5546 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
Yep, (Frasier Crane voice)... I'm listening...
 Some fun for now...
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Jan 27 2010, 10:15 PM
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#18
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 Senior Member Group: Admin Posts: 4500 Joined: 15-March 05 From: Sloughhouse, CA Member No.: 197 |
QUOTE (volcanopele @ Jan 27 2010, 01:30 PM)  What data could Opportunity collect that might help pin the age down? I take it radioisotope ratios are out Exactly. So why are they so certain that it's 1000 years old? Do they have a better crystal ball than me? -------------------- If Occam had heard my theory, things would be very different now.
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Jan 27 2010, 10:55 PM
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#19
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 Director of Galilean Photography Group: Members Posts: 709 Joined: 15-July 04 From: Austin, TX Member No.: 93 |
Is it me, or do the rocks around the crater even look "fresher"? There aren't any small cobbles around each larger rock, for example.
-------------------- Space Enthusiast Richard Hendricks
-- "The engineers, as usual, made a tremendous fuss. Again as usual, they did the job in half the time they had dismissed as being absolutely impossible." --Rescue Party, Arthur C Clarke Mother Nature is the final inspector of all quality. |
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Jan 27 2010, 11:03 PM
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#20
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 Member Group: Members Posts: 662 Joined: 9-February 07 Member No.: 1700 |
EGDan, thanks for the info on rock sizes and thank goodness Oppy's rolling on solid ground! I had the pleasure of being tickled by a rover rolling over me at the JPL Open house a few years ago, so I know she can at least climb over a bump-on-a-log my size!
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Jan 27 2010, 11:23 PM
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#21
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Senior Member Group: Members Posts: 4514 Joined: 5-April 05 From: Canada Member No.: 227 |
"why are they so certain that it's 1000 years old? "
I wouldn't be overly concerned about this - it's probably just a guess, meaning its preserved ejecta deposit suggests it is most likely very young compared with the other little craters we've seen frequently in the past. Actual number of years - not important. Like when I say I'm 39. Still. Or was it 49? Phil -------------------- ... because the Solar System ain't gonna map itself.
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Jan 27 2010, 11:24 PM
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#22
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Junior Member Group: Members Posts: 97 Joined: 14-March 05 From: Vastitas Borealis Member No.: 193 |
Made this HiRise anaglyph of Concepcion, magnified to 200 %. The inside of the crater seems to be completely enshrouded with the dark dust typically filling many smaller Meridiani craters.
Somehow I too have hard time imagining that this crater was just 994 years old when Oppy landed. (Excuse my literal interpretation.)
Attached thumbnail(s)
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Jan 28 2010, 01:30 AM
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#23
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Member Group: Members Posts: 233 Joined: 21-April 05 Member No.: 328 |
Stu, cool picture. I think we can see the "ray" of ejecta that goes off to the southeast. With this photo, one really gets the feeling of something having smacked into Mars at a very high velocity.
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Jan 28 2010, 06:18 AM
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#24
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The Poet Dude Group: Moderator Posts: 5546 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
GREAT 3D overhead view of Concepcion, thanks for posting that!
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Jan 28 2010, 12:09 PM
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#25
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 Senior Member Group: Members Posts: 2561 Joined: 14-February 06 From: Very close to the Pyrénées Mountains (France) Member No.: 682 |
No big relief differences to expect any significant wind change effects = cleaning events. I would expect some slight effects around Concepción the only "relief" around.
BTW we didn't saw the full deck for quite a while to assess sand deposition. IF we get this 360° panorama we'll probably get more infos on this since the deck is always included. Globally I'll add that, even if marswiggle 3D is nice, the view from the ground is much better than I was expecting. |
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Jan 28 2010, 12:36 PM
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#26
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 Special Cookie Group: Members Posts: 2149 Joined: 6-April 05 From: Sintra | Portugal Member No.: 228 |
QUOTE (fredk @ Jan 27 2010, 09:31 PM) To answer Ustrax's querries from the other thread... OK, thanks Fred, so Bopulu is on Oppy field of view is that correct? Can someone point where to look if the crater was visible? New pancams are down but no sign of the horizon...or Concepción 
-------------------- "Ride, boldly ride," The shade replied, "If you seek for Eldorado!"
Edgar Alan Poe |
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Jan 28 2010, 02:58 PM
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#27
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Forum Contributor Group: Members Posts: 905 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11 |
We would not want to jam a wheel up again with a potato would we ?
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Jan 28 2010, 03:04 PM
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#28
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Senior Member Group: Admin Posts: 4500 Joined: 15-March 05 From: Sloughhouse, CA Member No.: 197 |
QUOTE (MahFL @ Jan 28 2010, 06:58 AM) We would not want to jam a wheel up again with a potato would we ? The "potato" jam issues have been caused by small rocks mixed with lots of soft sand that the wheels were buried in. It's always something to watch for, but these environs involve firmer ground. It's difficult to imagine a way of placing a rock inside a wheel cavity unless that wheel is mired in something. As noted previously, this is the kind of terrain the rovers were designed FOR. -------------------- If Occam had heard my theory, things would be very different now.
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Jan 28 2010, 07:55 PM
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#29
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Member Group: Members Posts: 278 Joined: 31-August 05 From: Florida & Texas, USA Member No.: 482 |
edit: sorry, the MI was from sol 2119. I was just hoping they'd find another RAT target here.
Is it just me, or are there less and less blueberries as we go? |
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Jan 28 2010, 09:44 PM
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#30
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Senior Member Group: Members Posts: 2561 Joined: 14-February 06 From: Very close to the Pyrénées Mountains (France) Member No.: 682 |
QUOTE (Marz @ Jan 28 2010, 08:55 PM) Is it just me, or are there less and less blueberries as we go? We've got Hills now, why do you want Blueberries?
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