The optical imaging of smaller satellite attitude control systems and on-orbit operation mode switching method

The optical imaging of smaller satellite attitude control systems and on-orbit operation mode switching method, belonging to the field of satellite attitude control, the present invention is to solve the conventional optical imaging satellite can not be implemented in a simple and effective manner the problem of rail switches. The present invention is an optical imaging of smaller satellite attitude control system, which includes a sensor measuring the attitude, and an attitude control actuator; the attitude measurement sensor comprises a sun sensor, a star sensor and a gyro; actuator comprises a flywheel and a magnetic reaction torque converter. The mode of operation of the present invention small satellite attitude control system is switched orbit optical imaging method, the optical imaging of smaller satellite attitude control system is provided six modes, namely: the rate of damping mode, the Japanese capture mode, three pairs of directional day axis stabilization mode, the directional three-axis stabilized mode, the data transmission mode and a secure mode. The present invention is used for all small optical imaging satellite.