Geosynchronous satellite orbit determination

The paper presents the results of the orbit determination of geosynchronous satellites derived from 1921 positional observations of a few dozens of satellites obtained at the double wide-angle astrograph DWA (D=0.4 m, F=2 m) of the Main Astronomical Observatory of the National Academy of Sciences of Ukraine in 1985-1991. The observations cover the longitude range from 19 degrees W to 80 degrees E. Orbital inclination of the observed objects is less than 3 degrees. The mean values of the rms residuals are 0.'' 66 in R.A. and 1.'' 01 in Dec, over all processed orbital arcs.