METHOD OF CONTROL OF SPACECRAFT TURN AND SYSTEM FOR REALIZATION OF THIS METHOD Russian patent published in 1998 - IPC

FIELD: shift of spacecraft from any initial attitude to preset final attitude within preset period of time. SUBSTANCE: proposed method is used for realizing the turn of spacecraft over free motion trajectory. Direction of moment of momentum of spacecraft remains constant relative to absolute space during entire period of turn. High accuracy in position and time of completion of turn will be ensured due to estimation of expected time of completion of manoeuvre which is compared with preset time of turn; according to results of comparison, rated magnitude of vector of moment of momentum is corrected and is noted in inertial basis; upon completion of action of boosting impulse, control moment is formed and is applied according to measured parameters of angular motion of spacecraft to ensure motion of spacecraft at rated moment of momentum; deceleration of spacecraft is started from the moment when time required for corrective turn spacecraft till final attitude is equal to time for damping present moment of momentum. System used for realization of this method automatically determines parameters of trajectory. EFFECT: enhanced accuracy. 5 cl, 13 dwg