Simultaneous dual baseline differential VLBI

Details Simultaneous dual baseline differential VLBI Simultaneous dual baseline differential VLBI

Mar 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983jansc..31..117m&link_type=abstract

Journal of the Astronautical Sciences (ISSN 0021-9142), vol. 31, Jan.-Mar. 1983, p. 117-134.

Astronomy and Astrophysics

Astronomy

Orbit Calculation, Planetary Orbits, Satellite Orbits, Space Navigation, Very Long Base Interferometry, Circular Orbits, Covariance, Doppler Navigation, Error Analysis, Planet Ephemerides, Satellite Tracking, Sensitivity, Venus Orbiting Imaging Radar (Spacecraft)

Scientific paper

Attention is drawn to the benefits of simultaneous dual baseline radio interferometric measurements for low altitude planetary orbiter navigation. The radio interferometric data types constitute a valuable addition to conventional tracking data in the establishment of orbit-plane orientation, thanks to their measurement of inertial reference cross-track velocity. The present results show that only a few Delta-VLBI measurements, taken at either end of a conventional tracking arc, suffice for the realization of a positional accuracy of better than 1 km for the case of a Venus Orbiting Imaging Radar-type planetary orbiter. This is comparable to Deep Space Net accuracies, despite the use of a shorter baseline.

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