Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988navpa..36..335g&link_type=abstract
Navigation (Paris) (ISSN 0028-1530), vol. 36, July 1988, p. 335-342.
Astronomy and Astrophysics
Astronomy
Deep Space, Interplanetary Flight, Space Navigation, Spacecraft Communication, Spacecraft Tracking, Trajectory Measurement, Position Errors, Radio Navigation, Spacecraft Control, Transfer Orbits
Scientific paper
The continuous navigation of deep-space spacecraft traveling to distant destinations in the solar system is discussed. An ever-evolving prediction of the spacecraft orbit is achieved from a reduction of radiometric (doppler, range, and VLBI) and astronomic observations of the craft. Spacecraft control is facilitated by computing and signaling to the craft a series of propulsive velocity correction commands. Factors considered in orbit-determination modeling include the planetary motions, tracking station locations, gravity field structure, navigation system accuracy, and transmission media effects. The navigation examples of the Voyager 1 and 2 spacecraft are considered.
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