Astronomy and Astrophysics – Astronomy
Scientific paper
May 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989aj.....97.1485c&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 97, May 1989, p. 1485-1495.
Astronomy and Astrophysics
Astronomy
65
Gravitational Fields, Pioneer 11 Space Probe, Saturn (Planet), Voyager 1 Spacecraft, Voyager 2 Spacecraft, Doppler Radar, Iapetus, Planetary Mass, Rhea (Astronomy), Spacecraft Tracking, Titan, Saturn, Satellites, Gravity Fields, Spacecraft Observations, Trajectories, Doppler Methods, Mass, Rhea, Titan, Iapetus, Pioneer 11 Mission, Data, Voyager Missions, Diagrams, Procedure, Techniques, Perturbations, Parameters, Comparisons
Scientific paper
Doppler-tracking data and star-satellite imaging from the Voyager 1 and 2 spacecraft are used along with Pioneer 11 Doppler tracking data to study the gravity field of the Saturnian system. The present analysis has yielded improved values for the masses of Rhea, Titan, and Iapetus, and Saturn. The results are consistent with the findings of Null et al. (1981) and Nicholson and Porco (1988) for the Saturn zonal harmonic coefficients J2, J4, and J6. The ratio of the mass of the sun to the mass of the Saturnian system is found to be 3497.898 + or - 0.018
Anderson John D.
Campbell James K.
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