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Is 1220 Crocus a precessing, binary asteroid?Photoelectric data of the asteroid 1220 Crocus over a 13 night period in 1984 revealed the presence of two separate periods. The light curves were indicative of a precessing body, but not one in free precession due to motions induced by a collision. Closer examinations revealed periods of 30.7 and 7.9 hr with amplitudes of 0.87 and 0.15 mag, respectively. An analysis of the source of an external torque which could be causing a forced precession led to the hypothesis that 1220 Crocus has a satellite. Verification of the binary asteroid configuration will depend on more detailed light curves, the possible modulation of the shorter period by the longer, and possible use of the Space Telescope.
Document ID
19850067805
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Binzel, R. P.
(Texas, University Austin, United States)
Date Acquired
August 12, 2013
Publication Date
July 1, 1985
Publication Information
Publication: Icarus
Volume: 63
ISSN: 0019-1035
Subject Category
Astronomy
Accession Number
85A49956
Funding Number(s)
CONTRACT_GRANT: NGR-44-012-152
Distribution Limits
Public
Copyright
Other

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