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An absolute radius scale for Saturn's ringsRadio and stellar occultation observations of Saturn's rings made by the Voyager spacecraft are discussed. The data reveal systematic discrepancies of almost 10 km in some parts of the rings, limiting some of the investigations. A revised solution for Saturn's rotation pole has been proposed which removes the discrepancies between the stellar and radio occultation profiles. Corrections to previously published radii vary from -2 to -10 km for the radio occultation, and +5 to -6 km for the stellar occultation. An examination of spiral density waves in the outer A Ring supports that the revised absolute radii are in error by no more than 2 km.
Document ID
19900066048
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Nicholson, Philip D.
(Cornell Univ. Ithaca, NY, United States)
Cooke, Maren L.
(Cornell University Ithaca, NY, United States)
Pelton, Emily
(Princeton University NJ, United States)
Date Acquired
August 14, 2013
Publication Date
October 1, 1990
Publication Information
Publication: Astronomical Journal
Volume: 100
ISSN: 0004-6256
Subject Category
Lunar And Planetary Exploration
Accession Number
90A53103
Funding Number(s)
CONTRACT_GRANT: NAGW-544
Distribution Limits
Public
Copyright
Other

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