Star Tracker Space ApplicationsStar Tracker Star Tracker VST-41M Star Tracker VST-68M Magnetic Torquer VMT-35 Reaction Wheel Reaction Wheel VRW-1 Reaction Wheel VRW-02 Reaction Wheel VRW-05 Power Control Power Control and Distribution VPCDU-1 On-Board Data Handling Li-Ion Battery Block VLB-4/ -8 /-16 Simulation Tools Air Bearing Unit VABU-12 High Precision Single Axis Air Bearing VAMU-13 Payload Data Handling System VPDHS Downloads Star Tracker VST-41M VST-68M