Galileo Radio Science investigations utilized instrumentation with elements on the spacecraft and at the Deep Space Network (DSN). Much of this was shared equipment, being used for routine telecommunications as well as for Radio Science. The performance and calibration of both the spacecraft and tracking stations directly affected the radio science data accuracy, and they played a major role in determining the quality of the results. The spacecraft part of the radio science instrument is described immediately below; that is followed by a description of the DSN (ground) part of the instrument.
Radio Science investigations were carried out by two teams.
The Celestial Mechanics Team, under Team Leader John Anderson, conducted experimental tests of general relativity (including searching for gravitational waves), made measurements to improve solar system ephemerides, and sought to improve gravitational models for Jupiter and its satellites [ANDERSONETAL1992]. The Radio Propagation Team, under Team Leader Tay Howard, investigated the solar corona and carried out various studies in the Jovian system primarily concerning atmospheres and ionospheres [HOWARDETAL1992].
Instrument Specifications - Spacecraft
The Galileo spacecraft telecommunications subsystem served as part of a radio science subsystem for investigations primarily of Jupiter and its satellites, but also including Venus, the Earth-Moon system, and the Sun. Many details of the subsystem are unknown; its 'build date' is taken to be 1989-01-01, which was during the prelaunch phase of the Galileo mission.
Instrument Id : RSS Instrument Host Id : GO Pi Pds User Id : UNK Instrument Name : RADIO SCIENCE SUBSYSTEM Instrument Type : RADIO SCIENCE Build Date : 1989-01-01 Instrument Mass : UNK Instrument Length : UNK Instrument Width : UNK Instrument Height : UNK Instrument Manufacturer Name : UNK
Instrument Overview - Spacecraft
The spacecraft radio system was