METHOD OF DECELERATION OF ANGULAR VELOCITY OF SPACECRAFT Russian patent published in 2003 - IPC

FIELD: methods of control of angular motion; spacecraft orientation systems. SUBSTANCE: proposed method includes measurement of angular velocity creating control moments around construction axes of spacecraft. Magnitude of maximum acceleration of spacecraft around first axis and respective time of deceleration are determined. Then, control moment for deceleration of spacecraft is created around first axis at maximum acceleration. Magnitudes of maximum accelerations created by control moments around second and third axes of spacecraft are additionally determined . Rotation of spacecraft around second and third axes shall ensure shall ensure deceleration of spacecraft around first axis due to action of inertial gyroscopic torque from said second and third axes. Control moments around second and third axes of spacecraft are formed for boost and deceleration of spacecraft around these axes at maximum acceleration. Method includes determination of spacecraft deceleration time and duration of boost legs around second and third axes. Rotation of spacecraft and found magnitudes of maximum accelerations around these axes of spacecraft are taken into account. EFFECT: increased speed of response of spacecraft to rotation deceleration process. 4 dwg