HR: 09:10h
AN: P51D-05    [Abstracts]
TI: Models of Titan's Ionosphere
AU: * Robertson, I P
EM: robertin@ku.edu
AF: University of Kansas, Department of Physics & Astronomy, Malott Hall, 1251 Wescoe Hall Dr., Room 1082, Lawrence, KS 66045, United States
AU: Cravens, T E
EM: cravens@ku.edu
AF: University of Kansas, Department of Physics & Astronomy, Malott Hall, 1251 Wescoe Hall Dr., Room 1082, Lawrence, KS 66045, United States
AU: Waite, J H
EM: hwaite@swri.edu
AF: Southwest Research Institute, 6220 Culebra, PO Drawer 28510, San Antonio, TX 778228, United States
AU: Wahlund, J
EM: jwe@irfu.se
AF: Swedish Institute of Space Physics, Uppsala Division, Box 537, Uppsala, SE-751 21, Sweden
AU: Yelle, R V
EM: yelle@lpl.arizona.edu
AF: Lunar and Planetary Laboratory, University of Arizona, Space Science Bldg, Room 525, 1629 E. University Blvd, Tucson, AZ 85721, United States
AU: Vuitton, V
EM: vvuitton@lpl.arizona.edu
AF: Lunar and Planetary Laboratory, University of Arizona, Space Science Bldg, Room 525, 1629 E. University Blvd, Tucson, AZ 85721, United States
AU: Coates, A
EM: +44-1483-204145
AF: University College London, Mullard Space Science Laboratory, Holmbury St., Mary, Surrey, Dorking, RH5 6NT, United Kingdom
AU: Magee, B
EM: brian.magee@swri.edu
AF: Southwest Research Institute, 6220 Culebra, PO Drawer 28510, San Antonio, TX 778228, United States
AU: Gell, D A
EM: dgell@swri.edu
AF: Southwest Research Institute, 6220 Culebra, PO Drawer 28510, San Antonio, TX 778228, United States
AB: During the TA and T18 encounters with Titan, in situ measurements were made of Titan's atmosphere and ionosphere by several instruments on board the Cassini Orbiter, including the Ion and Neutral Mass Spectrometer (INMS), the Langmuir probe on the Cassini Radio and Plasma Wave Experiment (RPWS), and the Cassini Plasma Spectrometer Subsystem (CAPS). Both of these encounters were on the day as well as the night side of Titan. The model uses neutral densities measured by the INMS instrument and the electron temperature was measured by the RPWS instrument. The model also includes energetic electron fluxes measured by the CAPS instrument, which act as an important source of ionization on the night side. The modeled ion densities are compared with densities measured by INMS in its Open Source mode.
DE: 5405 Atmospheres (0343, 1060)
DE: 5421 Interactions with particles and fields
DE: 5435 Ionospheres (2459)
DE: 5440 Magnetic fields and magnetism
SC: Planetary Sciences [P]
MN: 2007 Fall Meeting