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Radio and Plasma Wave Observations at Saturn from Cassini's Approach and First OrbitWe report data from the Cassini radio and plasma wave instrument during the approach and first orbit at Saturn. During the approach, radio emissions from Saturn showed that the radio rotation period is now 10 hours 45 minutes 45 k 36 seconds, about 6 minutes longer than measured by Voyager in 1980 to 1981. In addition, many intense impulsive radio signals were detected from Saturn lightning during the approach and first orbit. Some of these have been linked to storm systems observed by the Cassini imaging instrument. Within the magnetosphere, whistler-mode auroral hiss emissions were observed near the rings, suggesting that a strong electrodynamic interaction is occurring in or near the rings.
Document ID
20050160491
Acquisition Source
Goddard Space Flight Center
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Gurnett, D. A.
(Iowa Univ. Iowa City, IA, United States)
Kurth, W. S.
(Iowa Univ. Iowa City, IA, United States)
Haspodarsky, G. B.
(Iowa Univ. Iowa City, IA, United States)
Persoon, A. M.
(Iowa Univ. Iowa City, IA, United States)
Averkamp, T. F.
(Iowa Univ. Iowa City, IA, United States)
Cecconi, B.
(Iowa Univ. Iowa City, IA, United States)
Lecacheux, A.
(Observatoire de Paris-Meudon France)
Zarka, P.
(Observatoire de Paris-Meudon France)
Canu, P.
(Centre des Etudes Terrestraire et Planetaire Velizy, France)
Cornilleau-Wehrlin, N.
(Centre des Etudes Terrestraire et Planetaire Velizy, France)
Date Acquired
August 23, 2013
Publication Date
February 25, 2005
Publication Information
Publication: Science
Volume: 307
Subject Category
Lunar And Planetary Science And Exploration
Distribution Limits
Public
Copyright
Other

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