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IRTF observations of the occultation of 28 Sgr by SaturnNASA's Mauna Kea IR Telescope Facility obtained an IR-imaging time series for the July 3, 1989 occultation of 28 Sgr by Saturn and its rings; the stellar signal is present in these images throughout the ring occultation event. These data are noted to vary systematically with respect to the Voyager data over large radius scales, perhaps due to stellar signal diffraction through the rings. The stellar diameter, which is projected to be about 20 km, placed most bending- and density-wave trains below measurable resolution. Masses and mean optical depths are presented for individual ring sections.
Document ID
19930061831
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Harrington, Joseph
(NASA Ames Research Center Moffett Field, CA, United States)
Cooke, Maren L.
(MIT Cambridge, MA, United States)
Forrest, William J.
(NASA Ames Research Center Moffett Field, CA, United States)
Pipher, Judith L.
(Rochester Univ. NY, United States)
Dunham, Edward W.
(MIT, Cambridge, MA; NASA, Ames Research Center Moffett Field, CA, United States)
Elliot, J. L.
(MIT Cambridge, MA, United States)
Date Acquired
August 16, 2013
Publication Date
June 1, 1993
Publication Information
Publication: Icarus
Volume: 103
Issue: 2
ISSN: 0019-1035
Subject Category
Lunar And Planetary Exploration
Accession Number
93A45828
Funding Number(s)
CONTRACT_GRANT: NSF AST-89-06011
Distribution Limits
Public
Copyright
Other

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