Instrument Information
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| IDENTIFIER |
urn:nasa:pds:context:instrument:nsp1.lcross::1.1
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| NAME |
NEAR INFRARED SPECTROMETER 1
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| TYPE |
SPECTROMETER
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| DESCRIPTION |
The LCROSS Near Infrared Spectrometer 1 (NSP1), or nadir NSP, is one of two NSPs with identical electronics units but different fore-optics systems and view directions. NSP1 is designed to take NIR emission reflectance spectrometry of the vapor plume and ejecta cloud resulting from the Centaur impact, measure the grain properties, and measure broad water features. The instrument comprises a dual-scope fore-optic system (shared with the VSP) providing a 1 degree diameter field of view using a 75 cm, 600-micron core diameter UV/Vis glass optical fiber (NA=0.12+/-0.02) feeding a spectrometer consisting of a single thermoelectrically cooled InGaAs sensor element which creates a 1-D spectrum. Spectral coverage is 1.2 - 2.4 microns with a nominal resolution of 0.035 microns. The instrument is mounted on the inboard side of the LCROSS R6 radiator panel with its aperture pointing in the +X spacecraft direction.
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| MODEL IDENTIFIER |
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| NAIF INSTRUMENT IDENTIFIER |
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| SERIAL NUMBER |
not applicable
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| REFERENCES |
unk
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