Diviner Lunar Radiometer Observations of the LCROSS Impact

Details Diviner Lunar Radiometer Observations of the LCROSS Impact Diviner Lunar Radiometer Observations of the LCROSS Impact

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010sci...330..477h&link_type=abstract

Science, Volume 330, Issue 6003, pp. 477- (2010).

Physics

13

Scientific paper

The Lunar Reconnaissance Orbiter (LRO) Diviner instrument detected a thermal emission signature 90 seconds after the Lunar Crater Observation and Sensing Satellite (LCROSS) Centaur impact and on two subsequent orbits. The impact heated a region of 30 to 200 square meters to at least 950 kelvin, providing a sustained heat source for the sublimation of up to ~300 kilograms of water ice during the 4 minutes of LCROSS post-impact observations. Diviner visible observations constrain the mass of the sunlit ejecta column to be ~10-6 to 10-5 kilograms per square meter, which is consistent with LCROSS estimates used to derive the relative abundance of the ice within the regolith.

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