Physics – Space Physics
Scientific paper
Sep 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979rvgsp..17.1437m&link_type=abstract
(International Union of Geodesy and Geophysics, General Assembly, 17th, Canberra, Australia, Dec. 2-15, 1979.) Reviews of Geophy
Physics
Space Physics
Astrometry, Geodesy, Planetary Surfaces, Planetology, Interplanetary Spacecraft, Jupiter (Planet), Mariner Program, Mars (Planet), Mercury (Planet), Pioneer Venus Spacecraft, Planetary Gravitation, Planetary Mass, Topography, Venus (Planet), Viking Spacecraft, Planets, Geodesy, Review, Mercury, Planet, Mariner 10, Mars, Mariner 9, Jupiter, Pioneer 10, Pioneer 11, Venus, Viking Orbiters, Viking Landers, Mass, Gravity Fields, Topography, Rotation, Dynamics, Satellites, Jovian Planets, Terrestrial Planets, Plu
Scientific paper
The results of investigations of the geodesy of the planets and their satellites conducted during the period 1975 - 1978 are surveyed. Analysis of the photographic data of Mercury taken by Mariner 10 have revealed the mass, oblateness, radius rotation period and density of the planet, and allowed the high-resolution mapping of the surface. Earth-based radar imagery has permitted the identification of large-scale topographic features on Venus. Knowledge of the gravitational field of Mars has been improved by Mariner 9 and Viking tracking data, and the global topography and geometric figure of Mars have been derived. Doppler and ranging tracking data from the Viking landers have provided data for the precise determination of Martian rotational dynamics and the topographic features and figures of Phobos and Deimos have been observed. Pioneer 10 and 11 data have yielded information on the mass, gravitational field and dynamic parameters of Jupiter. Discoveries of a satellite of Pluto and a set of rings around Uranus have been made, the rotation of Uranus and Neptune have been measured, and the geodetic properties of the rings and satellites of Saturn have been investigated. Future developments in planetary geodesy are expected from continued Viking data and the Pioneer Venus probe and Voyager probes to Jupiter and Saturn.
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