Hardening of a satellite thermal control system

A thermal control system for a body in space, said thermal control system regulating heat flow from a radiator, said heat flowing from said radiator through an aperture in said body, said thermal control system comprising:

• at least one louver positioned above said aperture, said louver rotating about a longitudinal axis such that in a first position said louver prevents heat flow and in a second position only minimally blocks heat flow, said louver rotating between said first and said second position, said louver fixedly connected to an actuator arm and to a pin-arm, said arms positioned in said longitudinal axis;
• at least one louver actuator, said louver actuator rotating said louver by said actuator arm, said actuator having therein a bimetallic coil spring having therein a heater that is controlled by a temperature of said radiator, said actuator opening said louver as said radiator's temperature rises;
• at least one overdrive actuator, said overdrive actuator sensing incoming hostile radiation and closing said louver to protect said radiator, said overdrive actuator closing a shield to protect said overdrive actuator from laser damage;
• a protective reflective coating, said coating applied to surfaces exposed to hostile radiation;
• and
• a thermal fence, said fence placed about said louver, said fence protecting said radiator from low incident radiation.