Physics
Scientific paper
Apr 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986jgcd....9..143s&link_type=abstract
Journal of Guidance, Control, and Dynamics (ISSN 0731-5090), vol. 9, Mar.-Apr. 1986, p. 143-148. Research supported by the Minis
Physics
Satellite Orbits, Satellite Tracking, Synchronous Satellites, Very Long Base Interferometry, Calibrating, Covariance, Data Reduction, Real Time Operation
Scientific paper
An experiment was carried out to track a geosynchronous satellite by a differential very-long-baseline interferometry (DVLBI) with a baseline 46 km long, observing seven quasars as reference radio sources. The geometrical delay observables were obtained with accuracies of 0.3 ns and 10 to 140 ns in the cases of satellite and quasars observations, respectively. The satellite orbit was fitted to the DVLBI observables with delay residuals of about 1 ns, where range and angle data obtained by a conventional radio tracking method were also used in the orbit determination. A covariance analysis shows that the DVLBI observables with an accuracy of 1 ns are effective to attain the orbit determination accuracy of about 100 m. A simulation shows that DVLBI with two baselines 1000 km long will furnish a prospective method of precise tracking of a geosynchronous satellite for an orbit determination with an accuracy of several tens of meters.
Arimoto Yoshinori
Isogai Mistuo
Kozono S.
Nagai Seiji
Shiomi T.
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