Alignment Verification of a Star Tracker Cluster and a Space Telescope for Land-survey Satellite

For high pointing accuracy space telescope it is necessary to provide the precise determination of relative angular position for the telescope and star sensors. For solving this problem, methods developed are presented which based on onboard discrete filtering of measurements, approximation and spline interpolation. We represent accuracy estimates obtained by computer simulation for the alignment verification of the star sensors and telescope onboard a land-survey satellite.