In order to control the attitude of a satellite having at least four
gyroscopic actuators with respective spinners mounted on gimbals
steerable about axes parallel to one or the other of only two different
directions that are fixed relative to the satellite, the attitude of the
satellite is measured using sensors on board the satellite, the control
torque required to perform an attitude-changing maneuver is calculated,
local linearization calculation is performed based on pseudo-inversion of
the Jacobean matrix of the function associating the orientations of the
actuator gimbals with the total angular momentum of the cluster in order
to determine a new gimbal orientation, and precession speeds of at least
one of the gimbals of the actuators are controlled to deliver the control
torque for reaching the desired configuration.