The Deep Impact Earth-Based Campaign |
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Authors: | K J Meech M F A’Hearn Y R Fernández C M Lisse H A Weaver N Biver L M Woodney |
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Institution: | (1) Institute for Astronomy, University Hawaii, 2680 Woodlawn Drive, Honolulu, HI, 96822, U.S.A.;(2) Department of Astronomy, University Maryland, College Park, MD, 20742-2421, U.S.A.;(3) Space Department, Johns Hopkins University, APL, 11100 Johns Hopkins Road, Laurel, MD, 20723-6099, U.S.A.;(4) Observatoire de Paris-Meudon, 5 Place Jules Jansses, 92190 Meudon, France;(5) Department of Physics, University of Central Florida, P.O. Box 162385, Orlando, FL, 32816-2385, U.S.A. |
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Abstract: | Prior to the selection of the comet 9P/Tempel 1 as the Deep Impact mission target, the comet was not well observed. From 1999 through the present there has been an intensive world-wide observing
campaign designed to obtain mission critical information about the target nucleus, including the nucleus size, albedo, rotation
rate, rotation state, phase function, and the development of the dust and gas coma. The specific observing schemes used to
obtain this information and the resources needed are presented here. The Deep Impact mission is unique in that part of the mission observations will rely on an Earth-based (ground and orbital) suite of complementary
observations of the comet just prior to impact and in the weeks following. While the impact should result in new cometary
activity, the actual physical outcome is uncertain, and the Earth-based observations must allow for a wide range of post-impact
phenomena. A world-wide coordinated effort for these observations is described. |
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Keywords: | deep impact earth observing |
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