On the long-period evolution of orbits of geostationary objects
R. I. Kiladze
At the Institute of theoretical astronomy (St.-Peterburg) the
method and software have been created for the calculation of the
ephemerides of the geostationary objects (GEO) for the long time
intervals. The perturbations from the geopotential and the luni-solar
attraction have been taken into the consideration.
The software has been used for the calculation of orbital evolutions
of some hundreds objects. The results of comparison with real orbits
have shown the satisfactory accuracy.
Software allows calculate the orbital evolution of GEO for several
ten-years with accuracy of 1-2 min of arc. Calculations for one year
time interval take from 1 to 5 sec of PC IBM-386.