HR: 09:30h
AN: P51E-06    [Abstracts]
TI: Wave Normal Calculations of Chorus at Saturn Using the Cassini Radio and Plasma Wave Science Five-Channel Waveform Receiver
AU: * Hospodarsky, G B
EM: george-hospodarsky@uiowa.edu
AF: The University of Iowa, Department of Physics and Astronomy, Iowa City, IA 52242 United States
AU: Averkamp, T F
EM: terrance-averkamp@uiowa.edu
AF: The University of Iowa, Department of Physics and Astronomy, Iowa City, IA 52242 United States
AU: Kurth, W S
EM: william-kurth@uiowa.edu
AF: The University of Iowa, Department of Physics and Astronomy, Iowa City, IA 52242 United States
AU: Gurnett, D A
EM: donald-gurnett@uiowa.edu
AF: The University of Iowa, Department of Physics and Astronomy, Iowa City, IA 52242 United States
AU: Dougherty, M K
EM: m.dougherty@imperial.ac.uk
AF: Imperial College, Blackett Lab, London, SW7 2BZ United Kingdom
AB: The Cassini spacecraft has completed the first year of its four-year prime mission to study the Saturnian system. The Cassini Radio and Plasma Wave Science (RPWS) Five-Channel Waveform Receiver (WFR) provides simultaneous waveforms from up to five separate sensors in passbands of either 1 Hz to 26 Hz, or 3 Hz to 2.5 kHz. The wave normal and Poynting vector of the various detected electromagnetic plasma waves can be calculated from the direct measurements of the three-axis magnetic and the two-axis electric wave fields. This analysis is important in determining the polarization, the mode, and the source region of these waves. During the first year of the Cassini spacecraft at Saturn a variety of low-frequency plasma waves have been observed, including chorus-like emissions. Poynting vector and wave normal analysis using the Means method are performed on these emissions and compared to similar emissions detected at Earth. For example, results show the chorus-like emission detected at Saturn propagates away from the Saturnian magnetic equator, similar to observations of chorus propagation at the Earth.
DE: 2756 Planetary magnetospheres (5443, 5737, 6033)
DE: 2772 Plasma waves and instabilities (2471)
DE: 5737 Magnetospheres (2756)
DE: 6984 Waves in plasma (7867)
SC: Planetary Sciences [P]
MN: Fall Meeting 2005