Advances in Astronomy and Space Physics, Volume 1 (2011)

Determination of the reference frames deections from optical observations of GNSS satellites

V. Ya. Choliy1, V. P. Zhaborovskyy1, V. Taradiy2, L. Rykhlova2

1Taras Shevchenko National University of Kyiv, Glushkova ave., 4, 03127, Kyiv, Ukraine
2INASAN, Pyatnizkaya st., 48, 119017, Moscow, Russia

Optical observations of navigation satellites were carried out at Terskol observatory during 2007-2010 with the aim to determine the deflection angles between GPS and GLONASS dynamical reference frames. There were three different observations strategies: celestial equator crossing, intersection of visible satellite paths, occultation of astrometric stars with the satellite. We present methodology of observation, data processing and the first results.