Evaluation of Microaccelerations on Board the Mir Station Through Optical Star Sensor

Two methods for determining the Mir orbital station attitude motion through optical star sensor are considered. The first method consists in smoothing measurement data by means of cubic splines, the second one is based on smoothing measurements by solutions of a variational problem for Poisson's kinematic equations. The knowledge of the station attitude motion allows to calculate low frequency component of microacceleration at given on board point. Examples of such calculations are given.