On the Gravitational Fields of Pandora and Prometheus

Details On the Gravitational Fields of Pandora and Prometheus On the Gravitational Fields of Pandora and Prometheus

Jan 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995em%26p...69...25g&link_type=abstract

Earth, Moon, and Planets, Volume 69, Issue 1, pp.25-50

Physics

9

Prometheus, Pandora, Gravitational Field, Topography

Scientific paper

Utilizing topographic models of Saturn's F-ring shepherd satellites Prometheus (S16 1980S27) and Pandora (S15 1980S26), derived by Stooke (1994), and supposing that their mass density is constant, we derived basic geometrical and dynamical characteristics of the moons. They include the volume and mass, the mean radii, the tensor of inertia, and Stokes coefficients of the harmonic expansions of external gravitational potential. The best fitting ellipsoid approximations of the topography were calculated. A simple method of determining the gravitational potential on the surface of an irregular satellite is presented. Examples of equipotential surfaces of the satellites are shown

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