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Speckle interferometry of asteroids. I - 433 ErosAnalytical expressions are derived for the semimajor and semiminor axes and orientation angle of the ellipse projected by a triaxial asteroid, and the results are applied speckle-interferometry observations of the 433 Eros asteroid. The expressions were calculated as functions of the dimensions and pole of the body and of the asterocentric position of the earth and the sun. On the basis of the analytical expressions, the dimensions of 433 Eros are obtained. The light curve from December 18, 1981 is compared to the dimensions to obtain a geometric albedo of 0.156 (+ or - 0.010). A series of two-dimensional power spectra and autocorrelation functions for 433 Eros show that it is spinning in space.
Document ID
19850042613
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Drummond, J. D.
(Arizona Univ. Tucson, AZ, United States)
Cocke, W. J.
(Arizona Univ. Tucson, AZ, United States)
Hege, E. K.
(Arizona Univ. Tucson, AZ, United States)
Strittmatter, P. A.
(Steward Observatory Tucson, AZ, United States)
Lambert, J. V.
(New Mexico State University Las Cruces, NM, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1985
Publication Information
Publication: Icarus
Volume: 61
ISSN: 0019-1035
Subject Category
Astronomy
Accession Number
85A24764
Funding Number(s)
CONTRACT_GRANT: F19628-82-K-0025
CONTRACT_GRANT: AF-AFOSR-82-0020
CONTRACT_GRANT: NAGW-224
Distribution Limits
Public
Copyright
Other

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