Statistics – Computation
Scientific paper
Jan 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988icar...73...25d&link_type=abstract
Icarus (ISSN 0019-1035), vol. 73, Jan. 1988, p. 25-65.
Statistics
Computation
58
Ice, Mimas, Planetary Structure, Satellite Imagery, Solar System, Water, Computational Astrophysics, Phobos, Voyager Project, Saturn, Satellites, Mimas, Spacecraft Observations, Voyager 2 Mission, Shape, Interior, Structure, Equilibrium, Physical Properties, Density, Radius, Size, Core, Composition, Water-Ice, Porosity, Rheology, Mantle, Thermal History, Heating, Regolith, Calculations, Geometry, Photographs, Diagrams, Moments Of Inertia, Libration, Relaxation, Surface, Formation, Resonance, Theoretical Stu
Scientific paper
Limb profiles from the six best Voyager images of Mimas have been used to determine the shape of the satellite. The ratio of the differences of the axes, (b - c)/(a - c), is 0.27±0.04, indicating that the satellite is close to hydrostatic equilibrium. The authors deduce that the satellite has a mean radius of 198.8±0.6 km and a mean density of 1.137±0.018 g/cm3 and that the difference between the long and short axes, a - c, is 16.9±0.7 km. It is likely that Mimas was formed close to its present orbital radius in a state of near, if not exact, resonance with Tethys and it is unlikely that Mimas has been disrupted since the time of its formation.
Dermott Stanley F.
Thomas Peter C.
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