HR: 0800h
AN: P31A-0187 [Abstracts]
TI: Auroral Movies and Spectroscopy from Cassini UVIS
AU: * Pryor, W R
EM: wayne.pryor@centralaz.edu
AF: Central Arizona College, 8470 N. Overfield Rd., Coolidge, AZ 85228, United States
AU: West, R
EM: robert.a.west@jpl.nasa.gov
AF: Jet Propulsion Laboratory, 4800 Oak Grove Dr., Pasadena, CA 91109, United States
AU: Stewart, I
EM: ian.stewart@lasp.colorado.edu
AF: LASP/University of Colorado, 1234 Innovation Dr., Boulder, CO 80303, United States
AU: Esposito, L
EM: larry.esposito@lasp.colorado.edu
AF: LASP/University of Colorado, 1234 Innovation Dr., Boulder, CO 80303, United States
AU: Jouchoux, A
EM: alain.jouchoux@lasp.colorado.edu
AF: LASP/University of Colorado, 1234 Innovation Dr., Boulder, CO 80303, United States
AU: McClintock, W
EM: bill.mcclintock@lasp.colorado.edu
AF: LASP/University of Colorado, 1234 Innovation Dr., Boulder, CO 80303, United States
AU: Colwell, J
EM: josh.colwell@lasp.colorado.edu
AF: LASP/University of Colorado, 1234 Innovation Dr., Boulder, CO 80303, United States
AU: Larsen, K
EM: kris.larsen@jpl.nasa.gov
AF: LASP/University of Colorado, 1234 Innovation Dr., Boulder, CO 80303, United States
AU: Holsclaw, G
EM: greg.holsclaw@lasp.colorado.edu
AF: LASP/University of Colorado, 1234 Innovation Dr., Boulder, CO 80303, United States
AU: Shemansky, D
EM: dshemansky@spacenvironment.net
AF: Space Environment Technologies, 320 N Halstead St Suite 110, Pasadena, CA 91107,
United States
AU: Ajello, J
EM: joseph.m.ajello@jpl.nasa.gov
AF: Jet Propulsion Laboratory, 4800 Oak Grove Dr., Pasadena, CA 91109, United States
AU: Hansen, C
EM: candice.j.hansen@jpl.nasa.gov
AF: Jet Propulsion Laboratory, 4800 Oak Grove Dr., Pasadena, CA 91109, United States
AU: Clarke, J
EM: jclarke@bu.edu
AF: Boston University, 725 Commonwealth Ave., Boston, MA 02215, United States
AU: Gustin, J
EM: j.gustin@ulg.ac.be
AF: University of Liege, Allee du 6 Aout Sart Tilman, Liege, B4000, Belgium
AU: Grodent, D
EM: d.grodent@ulg.ac.be
AF: University of Liege, Allee du 6 Aout Sart Tilman, Liege, B4000, Belgium
AU: Gerard, J
EM: jc.gerard@ulg.ac.be
AF: University of Liege, Allee du 6 Aout Sart Tilman, Liege, B4000, Belgium
AB:
Cassini's Ultraviolet Imaging Spectrograph (UVIS) has completed three years of study of Saturn's atmosphere
and auroras. Two long slit spectral channels are used to obtain EUV data from 56.3-118.2 nm and FUV data from
111.5-191.3 nm. 64 spatial pixels along each slit are combined with slit motion to construct spectral images of
Saturn. Auroral emissions are seen from electron-excited molecular and atomic hydrogen.
In 2007 UVIS obtained data with the spacecraft well out of Saturn's ring plane, permitting us to create images,
spectra, and at times movies. We will present an auroral movie from 2007-145 that has been processed to
remove flat-fielding artifacts and deconvolved to remove scattering along the slit. The movie shows near co-
rotation of N polar auroral features with the planet's rotation. An auroral oval is present. The oval appears
doubled on the midnight side.
Other images from this year show emissions inside the auroral oval. We will discuss these images and their
spectra. Additional images and movies are planned in coming months.
DE: 5704 Atmospheres (0343, 1060)
DE: 5706 Aurorae
DE: 5709 Composition (1060)
SC: Planetary Sciences [P]
MN: 2007 Fall Meeting