NASA Briefs Preliminary Plume Findings from Moon Mission |
NASA Briefs Preliminary Plume Findings from Moon Mission |
Nov 10 2009, 09:26 PM
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Member Group: Members Posts: 239 Joined: 18-December 07 From: New York Member No.: 3982 |
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Nov 16 2009, 06:49 PM
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Member Group: Members Posts: 544 Joined: 17-November 05 From: Oklahoma Member No.: 557 |
I don't have the LRO results. This paper, which interpreted everything in terms of implanted solar hydrogen, gave 1500 plus/minus 800 ppm by weight hydrogen from Prospector data.
If entirely in the form of water - just for the sake of argument - that would give you between 6.3 and 20.7 parts per thousand (or 6,300 to 20,700 ppm) by weight H2O. In reality we already know the hydrogen exists in various forms and compounds. |
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Nov 16 2009, 10:50 PM
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Junior Member Group: Members Posts: 94 Joined: 22-May 08 From: Loughborough Member No.: 4121 |
Just to be clear, when I mentioned the organic content of the Centaur I certainly didn't mean to imply this would have implications for water measurements. I was thinking more of the "C-H" compounds they alluded to.
I'd agree entirely that it would be possible to make an inventory of this that would indicate how much "stuff" could be generated. And if this total is way below what is seen on the organic front then there's no issue - and I presume it is. Predicting what would be generated by such a powerful impact is, however, much harder. In reality, I suspect, all manner of small fragments will fly. |
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