The OSIRIS-REx Visible and InfraRed Spectrometer (OVIRS): Spectral Maps of the Asteroid Bennu

被引:84
|
作者
Reuter, D. C. [1 ]
Simon, A. A. [1 ]
Hair, J. [1 ]
Lunsford, A. [2 ]
Manthripragada, S. [1 ]
Bly, V. [1 ]
Bos, B. [1 ]
Brambora, C. [1 ]
Caldwell, E. [1 ]
Casto, G. [1 ]
Dolch, Z. [1 ]
Finneran, P. [3 ]
Jennings, D. [1 ]
Jhabvala, M. [1 ]
Matson, E. [1 ]
McLelland, M. [4 ]
Roher, W. [1 ]
Sullivan, T. [5 ]
Weigle, E. [4 ]
Wen, Y. [1 ]
Wilson, D. [1 ]
Lauretta, D. S. [6 ]
机构
[1] NASA, GSFC, Greenbelt, MD 20771 USA
[2] Catholic Univ Amer, Washington, DC 20064 USA
[3] Jackson & Tull Inc, Beltsville, MD USA
[4] SwRI, San Antonio, TX USA
[5] Muniz Engn, Seabrook, MD USA
[6] Univ Arizona, Lunar & Planetary Lab, Tucson, AZ 85721 USA
关键词
OSIRIS-REx; Bennu; Asteroid; Composition; Visible and infrared spectrometer; Spectral maps; ORGANICS; SURFACE; ICE;
D O I
10.1007/s11214-018-0482-9
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The OSIRIS-REx Visible and Infrared Spectrometer (OVIRS) is a point spectrometer covering the spectral range of 0.4 to 4.3 microns (25,000-2300 cm(-1)). Its primary purpose is to map the surface composition of the asteroid Bennu, the target asteroid of the OSIRIS-REx asteroid sample return mission. The information it returns will help guide the selection of the sample site. It will also provide global context for the sample and high spatial resolution spectra that can be related to spatially unresolved terrestrial observations of asteroids. It is a compact, low-mass (17.8 kg), power efficient (8.8 W average), and robust instrument with the sensitivity needed to detect a 5% spectral absorption feature on a very dark surface (3% reflectance) in the inner solar system (0.89-1.35 AU). It, in combination with the other instruments on the OSIRIS-REx Mission, will provide an unprecedented view of an asteroid's surface.
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页数:22
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