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Knox-Thompson images of 4 VestaReconstructed images of the asteroid 4 Vesta reveal dark and bright patterns which can be followed across the disk as the asteroid rotates. Reasonable agreement is found with its visible light curve by assigning relative albedo 0 to the three darkest features, and relative albedo 2 to the three brightest features. From power-spectrum analysis of sets of images at two different epochs, Vesta's triaxial principal diameters, the orientation of its pole, and its rotational rate and sense are obtained. The images confirm the dominant role of surface structure, particularly the dark spots, in determining Vesta's light-curve signature.
Document ID
19880063879
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Drummond, J. D.
(Arizona Univ. Tucson, AZ, United States)
Hege, E. K.
(Steward Observatory Tucson, AZ, United States)
Eckart, A.
(Max-Planck-Institut fuer extraterrestrische Physik Garching, Federal Republic of Germany, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1987
Subject Category
Astronomy
Accession Number
88A51106
Funding Number(s)
CONTRACT_GRANT: NAGW-867
Distribution Limits
Public
Copyright
Other

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