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Europa, Ganymede, and Callisto - New radar results from Arecibo and GoldstoneObservations of the icy Galilean satellites, performed during 1987-1991 with the Goldstone 3.5 cm system and the Arecibo 13 cm system, show significant enhancements in the knowledge of the satellite's radar properties. The most prominent radar features are tentatively identified with Galileo Regio and the Valhalla basin. Estimates of echo Doppler frequencies show Callisto to be lagging its ephemeris by 200 +/- 50 km.
Document ID
19930034744
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Ostro, S. J. (JPL Pasadena, CA, United States)
Campbell, D. B. (Cornell Univ. Ithaca, NY, United States)
Simpson, R. A. (Stanford Univ. CA, United States)
Hudson, R. S. (Washington State Univ. Pullman, United States)
Chandler, J. F. (Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Rosema, K. D. (JPL Pasadena, CA, United States)
Shapiro, I. I. (Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Standish, E. M. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Winkler, R. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Yeomans, D. K. (JPL Pasadena, CA, United States)
Date Acquired
August 15, 2013
Publication Date
November 25, 1992
Publication Information
Publication: Journal of Geophysical Research
Volume: 97
Issue: E11
ISSN: 0148-0227
Subject Category
Lunar And Planetary Exploration
Accession Number
93A18741
Distribution Limits
Public
Copyright
Other

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