Physics – Optics
Scientific paper
Jun 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998jhatd..19..107h&link_type=abstract
Johns Hopkins APL Tech. Dig., Vol. 19, No. 2, p. 107 - 114
Physics
Optics
1
Minor Planets: Space Missions, Minor Planets: Space Instrumentation
Scientific paper
Multispectral Imager, one of the primary instruments on the Near Earth Asteroid Rendezvous (NEAR) spacecraft, uses a five-element refractive optics telescope, an eight-position filter wheel, and a charge-coupled device detector to acquire images over its sensitive wavelength range of ≍400 - 1100 nm. The primary science objectives of the Multispectral Imager are to determine the morphology and composition of the surface of asteroid 433 Eros. The camera will have a critical role in navigating to the asteroid. Seven narrowband spectral filters have been selected to provide multicolor imaging for comparative studies with previous observations of asteroids in the same class as Eros. The eighth filter is broadband and will be used for optical navigation. An overview of the instrument is presented, and design parameters and tradeoffs are discussed.
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