A decomposition method applied in the problem of near-planetary astronavigation using pseudostars

Details A decomposition method applied in the problem of near-planetary astronavigation using pseudostars A decomposition method applied in the problem of near-planetary astronavigation using pseudostars

Mar 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989kosis..27..221p&link_type=abstract

Kosmicheskie Issledovaniia (ISSN 0023-4206), vol. 27, Mar.-Apr. 1989, p. 221-227. In Russian.

Mathematics

Autonomous Navigation, Celestial Navigation, Reference Stars, Space Navigation, Decomposition, Diameters, Matrices (Mathematics), Planetology, Zenith

Scientific paper

The paper examines the problem of measurement-space decomposition in the problem of near-planetary astronavigation including the zenith distances of two stars and the angular diameter of the planet. Particular attention is given to the decomposition of the state space into a four-dimensional space of in-plane motion parameters and a two-dimensional subspace of out-of-plane motion parameters. From measurements of the zenith distances of two sighted stars, there is a transition to the zenith distances of two pseudostars, the direction to the first of which coincides with the current transversal, while the direction to the second coincides with a binormal to the plane of the a priori orbit. The in-plane parameters are determined from measurements of the zenith distance of the first pseudostar and the angular diameter of the planet, while the out-of-plane parameters are determined from measurements of the zenith distance of the second pseudostar.

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