HR: 14:05h
AN: P33A-03 INVITED     [Abstracts]
TI: Cassini's first Titan encounters: a comparison of plasma results
AU: * Coates, A J
EM: ajc@mssl.ucl.ac.uk
AF: Mullard Space Science Laboratory University College London, Holmbury St Mary, Dorking, RH5 6NT United Kingdom
AU: Crary, F J
EM: fcrary@swri.edu
AF: Southwest Research Institute, Division of Space Science and Engineering 6220 Culebra Road P.O. Drawer 28510, San Antonio, TX 78228-0510 United States
AU: Rymer, A M
EM: amr@mssl.ucl.ac.uk
AF: Mullard Space Science Laboratory University College London, Holmbury St Mary, Dorking, RH5 6NT United Kingdom
AU: Szego, K
EM: szego@rmki.kfki.hu
AF: KFKI-RMKI, Konkoly Thege str. 29-33, Bldg. III,, Budapest, H-1121 Hungary
AU: Steinberg, J T
EM: jsteinberg@lanl.gov
AF: Los Alamos National Laboratory Space and Atmospheric Science Group, NIS-1 Mail stop: D-466, Los Alamos, NM 87545 United States
AU: Vilppola, J
EM: jari.vilppola@oulu.fi
AF: University of Oulu, Department of Physical Sciences Linnanmaa, Oulu, FIN-90014 Finland
AU: Young, D T
EM: dyoung@swri.edu
AF: Southwest Research Institute, Division of Space Science and Engineering 6220 Culebra Road P.O. Drawer 28510, San Antonio, TX 78228-0510 United States
AB: We compare plasma data from the Cassini Plasma Spectrometer (CAPS) for the first encounters of Titan by the Cassini orbiter. Several features in the ionosphere are present, including at least 10 species of organic positive ions, negative ions, and ionospheric photoelectrons. Some features in the larger scale interaction are different between encounters, such as the interaction size, detailed structure, geometry and the magnetospheric conditions in which Titan is immersed. In this paper we will compare the electron and ion measurements made by CAPS and explore possible reasons for the difference in the observed structures at the different encounters.
DE: 2459 Planetary ionospheres (5435, 5729, 6026, 6027, 6028)
DE: 2756 Planetary magnetospheres (5443, 5737, 6030)
DE: 5405 Atmospheres--composition and chemistry
DE: 5421 Interactions with particles and fields
DE: 6280 Saturnian satellites
SC: Planetary Sciences [P]
MN: 2005 Joint Assembly