Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008dps....40.1901a&link_type=abstract
American Astronomical Society, DPS meeting #40, #19.01; Bulletin of the American Astronomical Society, Vol. 40, p.420
Astronomy and Astrophysics
Astronomy
Scientific paper
During the Cassini nominal mission two flybys were devoted to the determination of the gravitational field of Saturn. Two more radio science flybys are planned in the Equinox Mission and more are under consideration for the End of Life mission, following the Solstice Mission. The gravity experiment utilizes two and three-way Doppler data at X- and Ka-band and precise Earth tropospheric calibration data. We will present the results obtained so far with the data of the nominal mission as well as the results of simulations of the proximal orbits, when the spacecraft will pass between Saturn and the D ring at pericenter altitudes as low as 5000 km. These orbits will provide a determination of the high degree zonal gravity coefficients as well as the mass of the B ring.
Ardito A.
Armstrong John W.
Asmar Sami
Iess Luciano
Rappaport Nicole J.
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