Doppler experiments with Cassini radio system

Details Doppler experiments with Cassini radio system Doppler experiments with Cassini radio system

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992ncimc..15.1193c&link_type=abstract

Nuovo Cimento C, Serie 1 (ISSN 0390-5551), vol. 15 C, no. 6, p. 1193-1198.

Physics

5

Cassini Mission, Doppler Radar, Radar Tracking, Radio Communication, Space Exploration, Electromagnetic Noise, Errors, Gravitational Waves, Saturn (Planet), Scintillation

Scientific paper

The radio system of the Cassini orbiter will include a K-alpha band downlink channel, mainly intended for telemetry. A K-alpha uplink has also been proposed to allow for a highly accurate gravitational wave experiment. The fourfold increase in frequency will reduce the plasma noise by a factor of 12 and will allow a Doppler accuracy better than 10 exp -15 for time scales of 10 exp 3 - 10 exp 4 s. Extensive Doppler measurements of the gravitational field of Saturn and its satellites can be performed, exploiting the induced change in the velocity of the spacecraft. Possible sources of low-frequency gravitational waves and errors in the Doppler link are discussed.

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