LRO/LAMP Maps of the Lunar Poles: Survey of Nightside and Dayside Far-UV Albedos

Details LRO/LAMP Maps of the Lunar Poles: Survey of Nightside and Dayside Far-UV Albedos LRO/LAMP Maps of the Lunar Poles: Survey of Nightside and Dayside Far-UV Albedos

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufm.p13d1728r&link_type=abstract

American Geophysical Union, Fall Meeting 2011, abstract #P13D-1728

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[5422] Planetary Sciences: Solid Surface Planets / Ices, [5462] Planetary Sciences: Solid Surface Planets / Polar Regions, [5470] Planetary Sciences: Solid Surface Planets / Surface Materials And Properties, [6250] Planetary Sciences: Solar System Objects / Moon

Scientific paper

The Lyman Alpha Mapping Project (LAMP) is an ultraviolet (UV) spectrograph on the Lunar Reconnaissance Orbiter (LRO) that is designed to map the lunar albedo at far-UV wavelengths. LAMP primarily measures interplanetary HI Lyman-alpha sky-glow and FUV starlight reflected from the night-side lunar surface to pioneer an innovative technique for studying the permanently shadowed regions (PSRs) near the poles. Dayside observations are also obtained, when convenient, using a pinhole in our aperture door to limit the bright flux to the dynamic range of our sensitive detector. The albedos determined using the two observing methods provide useful comparisons, since the nightside illumination is diffuse and the dayside solar illumination is not. The diffuse source lends itself to determination of the single scattering parameter, while the point source is useful for phase angle relation studies. We investigate the polar regions for large scale far-UV spectral trends related to general surface properties of the poles as determined with LRO and other recent missions, and report our initial results.

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