DOPPLER EXPERIMENTS WITH CASSINI RADIO SYSTEM

Authors
COMORETTO G BERTOTTI B IESS L AMBROSINI R
Citation
G. Comoretto et al., DOPPLER EXPERIMENTS WITH CASSINI RADIO SYSTEM, Nuovo cimento della Societa italiana di fisica. C, Geophysics and space physics, 15(6), 1992, pp. 1193-1198
Citations number
NO
Categorie Soggetti
Geosciences, Interdisciplinary","Astronomy & Astrophysics
Journal title
Nuovo cimento della Societa italiana di fisica. C, Geophysics and space physics → ACNP
ISSN journal
11241896
Volume
15
Issue
6
Year of publication
1992
Pages
1193 - 1198
Database
ISI
SICI code
1124-1896(1992)15:6<1193:DEWCRS>2.0.ZU;2-W
Abstract
The proposed K(a) band link on the Cassini orbiter can be used for ver y accurate Doppler tracking. A two-way K(a) band coherent link, near o pposition, or more complex schemes involving the X-band link also, can virtually eliminate the noise due to interplanetary plasma, giving an accuracy DELTAf/f better than, 10(-15) for time scales of (103 divide d-by 10(4)) s. To achieve this accuracy, the other error sources, main ly the tropospheric delay and the clock stability, must be accurately controlled. This sensitivity will allow for the first time for a searc h for gravitational waves of reasonable amplitude.