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TEGA - Round 2
Stu
post Jul 26 2008, 10:54 PM
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Mars has never given up any of its secrets without a fight. Looks like this time is no different.

Got to feel sorry for all the TEGA team; they're obviously working unbelievably hard on this, and Mars just keeps laughing and kicking dirt in their faces. sad.gif They must be feeling a combination of frustrated/angry/rotten right now.

If any of you are reading this, keep going guys, we're behind you and thinking of you.


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slinted
post Jul 26 2008, 11:19 PM
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Here's an RAC image of the sample before the sprinkle/dump, for comparison:

RGB from red image acquired at 07:29 and blue taken at 07:30
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ArizonaWildcat
post Jul 26 2008, 11:19 PM
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QUOTE (Stu @ Jul 26 2008, 02:54 PM) *
Mars has never given up any of its secrets without a fight. Looks like this time is no different.

Got to feel sorry for all the TEGA team; they're obviously working unbelievably hard on this, and Mars just keeps laughing and kicking dirt in their faces. sad.gif They must be feeling a combination of frustrated/angry/rotten right now.

If any of you are reading this, keep going guys, we're behind you and thinking of you.


We are reading. Thanks for your kind words.
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Shaka
post Jul 27 2008, 12:03 AM
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Attached Image

I can't stand it.


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My Grandpa goes to Mars every day and all I get are these lousy T-shirts!
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belleraphon1
post Jul 27 2008, 12:18 AM
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Nothing comes easy....

Trying to operate a delicate sample delivery remotely... frankly I am amazed at the progress made so far....
All you folks on the Phoenix team have my utmost admiration.

Wondering if the sample material cold welded to the scoop due to the early morning temps? I look at that instrument deck
and cannot imagine how cold all the outer surfaces must be....

Craig




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PDP8E
post Jul 27 2008, 01:28 AM
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1) hold the scoop so that material should fall out.
2) take dump image
2) turn on the rasp (BBBBRRRATTTTTT!!)
3) take post dump image

cheers


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CLA CLL
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jmjawors
post Jul 27 2008, 02:11 AM
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There is a reason they are not going about it in such a straightforward fashion, PDP8E. Remember the delivery to the first TEGA oven.


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Paul Fjeld
post Jul 27 2008, 02:20 AM
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QUOTE (elakdawalla @ Jul 26 2008, 06:49 PM) *
http://planetary.s3.amazonaws.com/data/pho...9_16B80MDM1.jpg, which was taken at 07:55, which was after the dumping (which happened some time between 07:33 and 07:49).

This is a slightly more exposed picture taken at 7:51 and shows a bit more clearly that the >left< side blob of (wonderful icy) material let go but not the middle nor right. Hence door #1 got the best part of the sample! Just bad stinkin' luck!

Paul
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JRehling
post Jul 27 2008, 02:26 AM
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What's most annoying is that with sublimation, the sample isn't going to just sit there until something works.
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Deimos
post Jul 27 2008, 03:34 AM
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QUOTE (PDP8E @ Jul 27 2008, 02:28 AM) *
1) hold the scoop so that material should fall out.
2) take dump image
2) turn on the rasp (BBBBRRRATTTTTT!!)
3) take post dump image


You left out :

step 2.5) repeat the above 3 times
step 4) ???
step 5) profit!
unsure.gif
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Shaka
post Jul 27 2008, 05:12 AM
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Attached Image
These TEGA scoops don't empty unless you hit them juuuuust right.


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My Grandpa goes to Mars every day and all I get are these lousy T-shirts!
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climber
post Jul 27 2008, 06:41 AM
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I can also see other good news :
- if the sample adhere in the scoop this is probably ice (at least on Earth, it's what we'd had say)
- some get into the oven, so it doesn't stuck on the screen

I very confident "we" will make it


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jmknapp
post Jul 27 2008, 11:22 AM
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The way the soil clumps and adheres suggests a fair bit of water, like it's either wet or was wet and froze again--the RASP generates some heat, no?

Probably not a whole lot of time for idle experiments, but if soil adhering to the back of the scoop comes loose in some hours, would that suggest that its water content is responsible?


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babboxy
post Jul 27 2008, 11:28 AM
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mankind always struggles with ice

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BrianL
post Jul 27 2008, 02:10 PM
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So, if this sample is stuck in there, how are they going to get it out in preparation for the next scoop attempt?
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