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MSL - SAM and CHEMIN, Discussion of the science/results from these instruments |
Nov 21 2012, 11:46 AM
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#1
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![]() Senior Member ![]() ![]() ![]() ![]() Group: Admin Posts: 3108 Joined: 21-December 05 From: Canberra, Australia Member No.: 615 |
ADMIN NOTE: Hi All, a new topic for the discussion of the science from the SAM and Chemin instruments.
There has been a very important amendment to Rule 1.3 which is explained here. Please remember Rule 1.3 at all times when discussing matters in this section. |
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Mar 10 2013, 09:38 AM
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#2
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Junior Member ![]() ![]() Group: Members Posts: 94 Joined: 11-August 12 Member No.: 6536 |
Many Mars meteorites contain organics at levels that are very detectable by SAM. Amino acids at 100ppb levels have been reported. There is some controversy over the origin and these might be terrestrial. A high temperature Martian origin seems to be the favored explantion. Levels of reduced carbon in the 1-50 ppm range have also been reported, and this would be easily detected by SAM.
The bottom line is that there is a good chance that SAM will detect traces of organics in the next few months if it hasn't already. IIRC the detection limit for SAM is 1ppb organics. Amino acids in mars meteorite Reduced organic carbon in mars basalts |
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Mar 10 2013, 03:22 PM
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#3
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![]() Senior Member ![]() ![]() ![]() ![]() Group: Members Posts: 4271 Joined: 17-January 05 Member No.: 152 |
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Astro0 MSL - SAM and CHEMIN Nov 21 2012, 11:46 AM
pospa MSL Status Report 11.20.2012:
"... Although C... Nov 21 2012, 05:24 PM
Fran Ontanaya Something for reference: http://proceedings.spiedi... Nov 21 2012, 06:45 PM
Don1 SAM is of course capable of detecting gases evolve... Nov 22 2012, 06:23 AM
nprev Mod note: Two posts discussing rule 1.3 changes mo... Nov 22 2012, 06:34 PM
RonJones I have not seen any specific statements from the C... Nov 22 2012, 07:35 PM
mcaplinger QUOTE (RonJones @ Nov 22 2012, 12:35 PM) ... Nov 22 2012, 07:43 PM
marsophile QUOTE (RonJones @ Nov 22 2012, 12:35 PM) ... Nov 23 2012, 03:54 AM
mcaplinger QUOTE (marsophile @ Nov 22 2012, 08:54 PM... Nov 23 2012, 06:49 AM
marsophile QUOTE (marsophile @ Nov 22 2012, 08:54 PM... Nov 23 2012, 07:24 PM
nprev One fascinating finding would be if perchlorates a... Nov 22 2012, 07:44 PM
Burmese No data yet to work with until they present their ... Nov 22 2012, 08:55 PM
RonJones I suspect that if any new finding by MSL would be ... Nov 23 2012, 01:56 AM
nprev Very good comment, Burmese; thank you!
In gen... Nov 22 2012, 09:11 PM
Astro0 ADMIN NOTE: Can I remind everyone that this thread... Nov 23 2012, 02:30 AM
MrNatural Can we discuss SAM's stereochemistry capabilit... Nov 23 2012, 03:08 PM
mcaplinger QUOTE (MrNatural @ Nov 23 2012, 08:08 AM)... Nov 23 2012, 04:09 PM
stone QUOTE (MrNatural @ Nov 23 2012, 04:08 PM)... Feb 4 2013, 07:53 AM
elakdawalla Actually they're only free through Nov 30 -- o... Nov 23 2012, 05:18 PM
Don1 SAM has a number of different modes of operation. ... Nov 24 2012, 04:49 AM
Holder of the Two Leashes QUOTE (Don1 @ Nov 23 2012, 10:49 PM) On h... Nov 26 2012, 07:08 PM
Don1 QUOTE (Holder of the Two Leashes @ Nov 26 201... Nov 27 2012, 05:50 AM
Spin0 From AGU's 2012 Fall Meeting scientific progra... Nov 26 2012, 10:28 AM
elakdawalla Provided there's wi-fi or cellular signal, I... Nov 26 2012, 05:43 PM
vjkane QUOTE (elakdawalla @ Nov 26 2012, 09:43 A... Nov 26 2012, 06:54 PM
serpens I would suspect that the end products (and interme... Nov 27 2012, 04:40 AM
mcaplinger http://www.lpi.usra.edu/meetings/lpsc2012/pdf/2008... Nov 27 2012, 06:21 AM
serpens QUOTE (mcaplinger @ Nov 27 2012, 06:21 AM... Nov 27 2012, 11:18 PM
belleraphon1 AGU Press Conference Schedule:
http://fallmeeting.... Nov 27 2012, 01:01 PM
Lucas Well, this is interesting... apparently all the hy... Nov 28 2012, 04:57 PM
fredk It certainly does look like bad reporting, at leas... Nov 28 2012, 07:28 PM
EdTruthan Press release on the Dec. 3rd AGU press conference... Nov 29 2012, 08:58 PM
marsophile I have video but no audio of the press conference.... Dec 3 2012, 05:43 PM
fredk Details at the press release if anyone hasn't ... Dec 3 2012, 06:04 PM
dvandorn And yet the media still hear what they want to hea... Dec 3 2012, 06:59 PM
serpens QUOTE (dvandorn @ Dec 3 2012, 07:59 PM) A... Dec 3 2012, 10:07 PM

mcaplinger QUOTE (serpens @ Dec 3 2012, 03:07 PM) Pa... Dec 3 2012, 11:06 PM
MahFL QUOTE (dvandorn @ Dec 3 2012, 06:59 PM) A... Dec 3 2012, 10:58 PM
Hungry4info Well, in fairness, they did say they detected simp... Dec 3 2012, 07:02 PM
silylene The chlorinated methanes are interesting. CH3Cl, ... Dec 3 2012, 07:14 PM
nprev The discontinuity seems to be:
1. "Organics... Dec 3 2012, 11:08 PM
Antonb Not only was 'organic' not precisely defin... Dec 4 2012, 02:24 PM
JRehling If you currently do a Google News search for ... Dec 4 2012, 03:27 PM
Fran Ontanaya Can we go back to discussing the actual results. N... Dec 4 2012, 04:40 PM
marsophile For some context, we had the following results fro... Dec 4 2012, 04:43 PM
marsophile QUOTE (marsophile @ Dec 4 2012, 09:43 AM)... Dec 5 2012, 04:03 PM
dvandorn QUOTE (marsophile @ Dec 5 2012, 11:03 AM)... Dec 5 2012, 04:59 PM
mcaplinger QUOTE (dvandorn @ Dec 5 2012, 09:59 AM) W... Dec 5 2012, 07:51 PM

NickF QUOTE (mcaplinger @ Dec 5 2012, 01:51 PM)... Dec 5 2012, 08:47 PM

mcaplinger QUOTE (mcaplinger @ Dec 5 2012, 12:51 PM)... Dec 5 2012, 08:59 PM
stone QUOTE (dvandorn @ Dec 5 2012, 05:59 PM) W... Jan 31 2013, 10:47 PM
mcaplinger QUOTE (stone @ Jan 31 2013, 03:47 PM) I l... Feb 1 2013, 12:17 AM
stone ADMIN TIP: When replying to a post immediately pre... Feb 1 2013, 06:59 AM
Don1 I think we're looking at a work in progress wi... Dec 5 2012, 02:01 AM
djellison QUOTE (Don1 @ Dec 4 2012, 06:01 PM) I thi... Dec 5 2012, 02:20 AM
serpens QUOTE (Don1 @ Dec 5 2012, 02:01 AM) The m... Dec 5 2012, 08:32 AM
silylene As I suggested in my prior post in this thread, I ... Dec 5 2012, 07:29 PM
marsophile One thing that seems puzzling is why chloromethane... Dec 6 2012, 04:18 AM
Don1 Elements like potassium and sodium have several di... Dec 6 2012, 09:10 AM
Gerald For the 44th Lunar and Planetary Science Conferenc... Feb 1 2013, 07:11 PM
stone With the Viking data showing chlorohydrocarbons an... Feb 1 2013, 09:16 PM
marsophile The cited paper allows for the possibility that th... Feb 1 2013, 09:29 PM
stone QUOTE (marsophile @ Feb 1 2013, 10:29 PM)... Feb 2 2013, 11:12 AM
Don1 Yes there is news from SAM and it ain't good. ... Feb 2 2013, 09:28 AM
marsophile Couldn't they simply use up the supply of the ... Feb 3 2013, 01:38 AM
stone The MTBSTFA is used to search for amino acids and ... Feb 3 2013, 07:16 AM
marsophile Then it seems there is a catch-22 situation: They... Feb 4 2013, 03:41 AM
Mr Valiant I had no idea that the GC was so, so...definative.... Feb 4 2013, 11:27 AM
marsophile Drilling is probably the best bet for getting a pe... Feb 11 2013, 06:03 AM
stone If the perchlorates are ancient the vein should be... Feb 11 2013, 07:43 AM
rickyjames Could somebody please elaborate on the statement m... Feb 15 2013, 02:41 PM
stone "Although none of them have been punctured ye... Feb 15 2013, 05:07 PM
marsophile If the SAM and CHEMIN instruments performed measur... Mar 9 2013, 02:40 AM
stone The heating like done by SAM is not done often on ... Mar 9 2013, 10:52 AM
jmknapp Check this report of SAM tests on Earth:
Mars Sci... Mar 9 2013, 11:11 AM
stone I know what the SAM team had at AMASE in 2010 and ... Mar 9 2013, 04:44 PM
stone The detection level is a very complicated topic fo... Mar 10 2013, 10:14 AM
Don1 QUOTE (fredk @ Mar 10 2013, 07:22 AM) But... Mar 10 2013, 08:17 PM
stone The MTBSTFA gives you a nice background and makes ... Mar 10 2013, 09:46 PM
xflare But don't we already know Mars has/had organic... Mar 10 2013, 10:50 AM
t_d QUOTE (xflare @ Mar 10 2013, 06:50 AM) Bu... Mar 10 2013, 01:11 PM
centsworth_II QUOTE (xflare @ Mar 10 2013, 05:50 AM) Bu... Mar 10 2013, 05:36 PM
Cardinal From what I can tell, the actual press conference ... Mar 11 2013, 08:28 PM
nprev Repeat: Don't get too excited. This will be an... Mar 11 2013, 08:43 PM
xflare QUOTE (nprev @ Mar 11 2013, 08:43 PM) Rep... Mar 11 2013, 09:45 PM
belleraphon1 Agree with nprev.
Analysis by CheMin and SAM of ... Mar 11 2013, 09:24 PM
jmknapp True--in terms of announcing subsystem firsts, the... Mar 11 2013, 09:56 PM
Don1 Today's announcement looks like a mixture of g... Mar 12 2013, 09:24 PM
marsophile Did they specifically identify perchlorate, or is ... Mar 12 2013, 10:15 PM
fredk All I remember is a statement that they saw perchl... Mar 12 2013, 11:12 PM
Don1 They see oxygen released at a temperature consiste... Mar 13 2013, 02:10 AM
t_d Wouldn't heating the sample for twenty minutes... Mar 13 2013, 03:20 AM
Phil Stooke Yes, and they measure them all.
Phil Mar 13 2013, 03:26 AM
centsworth_II Here is a transcript of SAM PI Paul Mahaffy's ... Mar 13 2013, 04:22 AM
elakdawalla I thought I heard "nanomoles," not ... Mar 13 2013, 04:35 AM
centsworth_II QUOTE (elakdawalla @ Mar 12 2013, 11:35 P... Mar 13 2013, 04:57 AM
Doug M. A number of articles are mentioning the presence o... Mar 13 2013, 08:55 AM
orbitmars P2O5 has been detected in Gusev, Meridiani and Gal... Mar 13 2013, 09:57 AM![]() ![]() |
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