Astrometric goals of the Radio Astron mission

Details Astrometric goals of the Radio Astron mission Astrometric goals of the Radio Astron mission

Jan 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005hia....13..607z&link_type=abstract

In: Highlights of Astronomy, Vol. 13, as presented at the XXVth General Assembly of the IAU - 2003 [Sydney, Australia, 13 - 26 J

Astronomy and Astrophysics

Astronomy

Space Astrometry

Scientific paper

It is planned that the RadioAstron mission will be started since March 2006. According the RadioAstron program initiated by Astro Space Center of Lebedev Physical Institute of Russian Academy of Science (supervisor N.S.Kardashev) in collaboration with other institutes of Russia a satellite carrying a 10-meter radio telescope will be launched in high elliptical orbit around the Earth. In apogee distance will be 350000 km. It is planned that VLBI observations will be conducted with large ground based radio telescopes. Main astrometric goal of the mission is the realization of new International Celestial Reference Frame on base of measurements of the coordinates of the defining sources with microarcsecond accuracy. Observations of some pulsars on the space-ground interferometers and by the timing technique will allow us to connect kinematical and dynamical systems with unprecedented accuracy. Coordinates of ground radio telescopes will be determined with respect to the geocenter. Status of work will be reported: program of observations model of the VLBI reduction procedure expected accuracies.

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