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Rate Command Mode
In this mode the spacecraft attitude rate about each axis is proportional to the attitude hand controller displacement from the neutral deadband (The output remains at zero for displacements less than 1 degree of handle travel, providing a non-operational area or deadband). Command signals, generated by handle displacements, are compared with rate gyro outputs, and when the difference exceeds the damping deadband, thruster firing occurs. Signals originate from potentiometers in the hand controller and outputs are directly proportional to handle displacement. A maximum command signal to ACE produces an angular rate of 10 degrees/second about the pitch and yaw axis and 15 degrees/second about the roll axis..