Instrument Information
IDENTIFIER urn:nasa:pds:context:instrument:nirs.hay::2.2
NAME The Near-Infrared Spectrometer (NIRS) for Hayabusa
TYPE Spectrometer
DESCRIPTION The Near Infrared Spectrometer (NIRS) on Hayabusa was designed to study the mineralogy and physical properties of the surface of asteroid 25143 Itokawa. NIRS has a 64 channel InGaAs photodiode array detector and a diffraction grating combined with a prism. The detector covered wavelengths from 0.76 to 2.1 microns with a dispersion per pixel of 23.6 nm. The field of view is 0.1 x 0.1 degrees. Over 80,000 spectra were obtained from September to November 2005 at solar phase angles from 0 to 38 degrees.
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REFERENCES Abe, M., Y. Takagi, K. Kitazato, S. Abe, T. Hiroi, F. Vilas, B.E. Clark, P.A. Abell, S.M. Lederer, K.S. Jarvis, T. Nimura, Y. Ueda, A. Fujiwara, Near-Infrared Spectral Results of Asteroid Itokawa from the Hayabusa Spacecraft, Science 312, 1334-1338, 2006.

Fujiwara, A., T. Mukai, J. Kawaguchi, and K.T. Uesugi, Sample Return Mission to NEA : MUSES-C. Advances in Space Research 25, 231-238, 2000.

Abe, S., T. Mukai, N. Hirata, O.S. Barnouin-Jha, A.F. Cheng, H. Demura, R.W. Gaskell, T. Hashimoto, K. Hiraoka, T. Honda, T. Kubota, M. Matsuoka, T. Mizuno, R. Nakamura, D.J. Scheeres, M. Yoshikawa, Mass and Local Topography Measurements of Itokawa by Hayabusa. Science 312, 1344-1349, 2006.

Kitazato, K., B.E. Clark, M. Abe, S. Abe, Y. Takagi, T. Hiroi, O.S. Barnouin-Jha, P.A. Abell, S.M. Lederer, F. Vilas, Near-infrared spectrophotometry of Asteroid 25143 ltokawa from NIRS on the Hayabusa spacecraft, Icarus 194, 137-145, 2008.