Sol 90+, Extended mission |
Sol 90+, Extended mission |
Sep 8 2008, 05:29 PM
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#91
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Junior Member Group: Members Posts: 44 Joined: 25-February 08 From: Greece, Komotini Member No.: 4055 |
Why did they aquire another WCL-3 sample(Golden Goose 3)?wasn`t the Golden Goose 2 enough? the upcoming TEGA sample where is going to be from?Stone Soup or Snow White?
-------------------- "It`s one small step for a man. A giant leap for all mankind!" Armstrong, Apollo 11, 1969.
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Sep 8 2008, 05:46 PM
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#92
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Senior Member Group: Members Posts: 2173 Joined: 28-December 04 From: Florida, USA Member No.: 132 |
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Sep 8 2008, 06:04 PM
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#93
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Member Group: Members Posts: 101 Joined: 29-January 06 Member No.: 667 |
I'm not aware of this. As far as I know, one sample was delivered to WCL-3 and that's that. Do you have a reference for "Golden Goose 3"? Texas A&M Raw Images QUOTE Sol 102: Document GG3 sample and transfer to WCL3; remote sensing
[...] Sol 096: Document GG2 delivery to WCL-3, TEGA door 1; remote sensing; night science |
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Sep 8 2008, 06:37 PM
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#94
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Member Group: Members Posts: 877 Joined: 7-March 05 From: Switzerland Member No.: 186 |
Makes the whole situation up there at the Martian Pole so much more vivid and "real", to see the panels flapping. A bit like the litle tell-tale, but more impressive... "real" like this -------------------- |
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Sep 8 2008, 06:52 PM
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#95
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Senior Member Group: Members Posts: 2173 Joined: 28-December 04 From: Florida, USA Member No.: 132 |
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Sep 8 2008, 07:06 PM
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#96
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Member Group: Members Posts: 568 Joined: 20-April 05 From: Silesia Member No.: 299 |
-------------------- Free software for planetary science (including Cassini Image Viewer).
http://members.tripod.com/petermasek/marinerall.html |
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Sep 8 2008, 08:37 PM
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#97
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The Poet Dude Group: Moderator Posts: 5551 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
Great days for MECA OM team. Many high quality OM images.Sol 099 Wow... very nice... couldn't resist a couple of probably-bear-no-relation-to-actual-colour-at-all colourisations... -------------------- |
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Sep 8 2008, 09:02 PM
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#98
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Senior Member Group: Members Posts: 2922 Joined: 14-February 06 From: Very close to the Pyrénées Mountains (France) Member No.: 682 |
Wow. I didn't expect that kind of power with Mars' air density... It clearly is flapping ... Trying to take off ? -------------------- |
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Sep 8 2008, 10:00 PM
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#99
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Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
Did anybody else notice this? I didn't see it until just this morning. Looks like TEGA has suffered some kind of anomaly. It's not clear to me from the story if they're going to be able to get what they want to get out of an ice-rich sample or not now. It's New Scientist, so take it with a grain of salt.
Mars lander to squirrel away soil in advance of winter --Emily -------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
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Sep 9 2008, 12:30 AM
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#100
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Member Group: Members Posts: 548 Joined: 19-March 05 From: Princeton, NJ, USA Member No.: 212 |
I didn't see it until just this morning. Looks like TEGA has suffered some kind of anomaly. It's not clear to me from the story if they're going to be able to get what they want to get out of an ice-rich sample or not now. It's New Scientist, so take it with a grain of salt.[ --Emily my guess is this anomoly is the gas flow problem reported in Aug 31 press release. hopefully not a new problem. ken http://phoenix.lpl.arizona.edu/08_29_pr.php "The team is currently working to diagnose an intermittent interference that has become apparent in the path for gases generated by heating a soil sample in the Thermal and Evolved-Gas Analyzer to reach the instrument's mass spectrometer. Vapors from all samples baked to high temperatures have reached the mass spectrometer so far, however data has shown that the gas flow has been erratic, which is puzzling the scientists." |
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Sep 9 2008, 12:45 AM
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#101
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Senior Member Group: Members Posts: 1585 Joined: 14-October 05 From: Vermont Member No.: 530 |
It sounded familiar to me as well. I'm thinking New Scientist probably noticed that and gave them a call, because they got a little more info.
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Sep 9 2008, 12:55 AM
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#102
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Member Group: Members Posts: 524 Joined: 24-November 04 From: Heraklion, GR. Member No.: 112 |
.... data has shown that the gas flow has been erratic, which is puzzling the scientists." I agree mars_loon, it seems that the $%^#*#^# previously erratic gas flow has now stopped completely. So we have to rely on the gases created in situ from the sample to carry stuff of lower concentration to the mass spectrometer. We probably kiss quantitative results goodbye, more or less (although the "intermittent" gas flow may have affected previous TEGA measurements too). Mars hits back, but we will endure |
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Sep 9 2008, 12:59 AM
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#103
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Member Group: Members Posts: 144 Joined: 17-July 07 From: Canberra Australia Member No.: 2865 |
It's New Scientist, so take it with a grain of salt. --Emily Well they identify and quote their source and provide more information than the official update so I think this time we can forego the salt. The update http://phoenix.lpl.arizona.edu/08_29_pr.php states that 'At least one ice water cloud has been observed'. Does this imply that the clouds observed are mainly high CO2 ice? |
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Sep 9 2008, 01:50 AM
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#104
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Member Group: Members Posts: 101 Joined: 29-January 06 Member No.: 667 |
http://phoenix.lpl.arizona.edu/08_29_pr.php
QUOTE "The team is currently working to diagnose an intermittent interference that has become apparent in the path for gases generated by heating a soil sample in the Thermal and Evolved-Gas Analyzer to reach the instrument's mass spectrometer. Vapors from all samples baked to high temperatures have reached the mass spectrometer so far, however data has shown that the gas flow has been erratic, which is puzzling the scientists." My recollection was that the early short problem -- end of May? -- in TEGA was in the shared carrier gas apparatus. Edit: UMSF article QUOTE As I understand it the part that has shorted out is one of the two carrier gas ionizers. The ovens vaporize the soil samples; these vapors are carried by a neutral carrier gas to the mass spectrometer. But before the carrier gas is fed over the sample it is charged then accelerated. The ionizer is needed to charge the gas so it can be be accelerated (like in an ion engine). Luckily there are two coils so when one is malfunctioning the other may be used instead. It seems to me that the team has some confidence that this is the case and full functionality can be restored. Check that. Next article there says: QUOTE No. ionization occurs in the mass spec. The carrier gas is neutral - remember the baking in the ovens must be done under 'pressure'. Where was that initial short? Edit: Nevermind. Ionization apparatus. Space.com: QUOTE The glitch seems to be a short circuit in a filament in a part of the instrument that ionizes the vapors before they are sent to the detector, said TEGA co-investigator William Boynton of the University of Arizona. There are two filaments in the detector however, and TEGA scientists are now investigating whether they can operate the instrument with just the one filament.
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Sep 9 2008, 05:24 AM
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#105
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Member Group: Members Posts: 133 Joined: 3-June 06 From: the jungle of Nool Member No.: 799 |
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