Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983azh....60..781g&link_type=abstract
(Astronomicheskii Zhurnal, vol. 60, July-Aug. 1983, p. 781-789) Soviet Astronomy (ISSN 0038-5301), vol. 27, July-Aug. 1983, p. 4
Astronomy and Astrophysics
Astronomy
Astrometry, Astronomical Coordinates, Extragalactic Radio Sources, Inertial Reference Systems, Laser Range Finders, Position (Location), Spaceborne Astronomy, Very Long Base Interferometry
Scientific paper
Practical calculation techniques for the precise determination of star coordinates in a reference frame defined by extragalactic radio sources are proposed. The approach taken combines VLBI observations of the sources and of radio-beacon satellites with synchronous optical observations of the satellites against the star background, as suggested by Gubanov et al. (1976) and Alekseev and Lipatov (1981). The distance to the satellite is determined directly by radar ranging, and the optical observations are obtained by tracking the satellite and extracting the stellar positions from the output of a multichannel 2D photoelectric micrometer (possibly based on a CCD matrix); the geometric aspects of this extraction are examined in detail.
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