METHOD AND SYSTEM FOR DETERMINING ORIENTATION OF SPACECRAFT IN SPACE WITH AUTONOMOUS CORRECTION OF LIGHT ABERRATION EFFECT

摘要

FIELD: space equipment.;SUBSTANCE: group of inventions relates to space engineering, namely to a method and system for determining orientation of a spacecraft (SC) with autonomous correction of the effect of light aberration by observing stars. System includes at least three stellar sensors (SS) mounted on a common base in such a way that the optical axes of the sensors are not pair-wise parallel to each other with given angles between their optical axes determined by the location of the SS on the base, a unit for processing data received from stellar sensors. Each SS in the unit is configured to determine the direction of the viewing axis SS in the inertial coordinate system by determining the coordinates of the field of view of the sensors and the angle of rotation of the field of vision around its center to obtain preliminary parameters of the orientation of SC. Method includes simultaneous measurement of coordinates of centers of field of view of sensors during movement of SC, determination of angles between centers of field of view of not less than three pairs of sensors, determination of deviation of measured angles from given, determination of space velocity vector SC, after which the effect of light aberration is determined and taken into account when determining spatial orientation SC.;EFFECT: method is proposed to determine orientation of spacecraft in space with autonomous correction of light aberration effect.;8 cl, 8 dwg