MGN V RSS SPHERICAL HARMONIC AND GRAVITY MAP DATA V1.0

The gravitational signature of Venus was determined from velocity perturbations of the Pioneer Venus Orbiter (PVO) and the Magellan spacecraft as measured from the Doppler shift of the S-band and X-band radio tracking signal. The spacecraft were tracked by NASA's Deep Space Network (DSN) at Goldstone, California, Canberra, Australia, and Madrid, Spain. The tracking data were used to determine the spacecraft orbits about Venus, as well as the Venusian gravity field. A detailed description of how the spacecraft orbits were computed and an assessment of their quality can be found in [KONOPLIV&SJOGREN1996]. For information on Magellan gravity investigations see papers in [ICARUSMGN1994].