433 Eros Global Basemap from NEAR Shoemaker MSI Images |
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Authors: | DBJ BusseyMS Robinson K EdwardsPC Thomas J JosephS Murchie J VeverkaAP Harch |
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Institution: | a Northwestern University, Locy Hall 309, 1847 Sheridan Road, Evanston, Illinois, 60208, f1ben@mercury.earth.nwu.eduf1b Q&D Programming, Hearne, Texas, 77859c Cornell University, Space Sciences Building, Ithaca, New York, 14853d The Johns Hopkins Applied Physics Laboratory, Laurel, Marlyand, 20723 |
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Abstract: | During its year-long orbital survey of Asteroid 433 Eros (February 14, 2000 to February 12, 2001) the NEAR Shoemaker spacecraft returned over 160,000 images of the surface, obtained under a wide variety of viewing conditions and resolutions. To handle this large volume of images of Eros, we have utilized specialized techniques for projecting, mosaicking, and photometrically analyzing images of irregular objects. Local incidence and emission angles are calculated on a pixel-by-pixel basis from the global shape model to produce a normalized reflectance map of the entire asteroid. This map provides not only a medium resolution (∼10 m/pixel) scientific product in its own right but also a regional context for high-resolution (<1 m/pixel) image sequences. |
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Keywords: | asteroids |
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