Attitude Determination and Control System (ADCS)

Labeled drawing of the Attitude Determination and Control System (ADCS).

The ADCS is a Y(pitch)-momentum system using one reaction wheel and three torque coils for control. The equipment complements of nine photodiodes as coarse sun sensors (CSS), a fine sun sensor, a nadir sensor, a magnetometer, and a Inertial Measurement Units (IMU). In nominal operation mode, the ADCS nadir points spacecraft’s -X axis.