Satellites; Satellites with preloaded software for operation, guidance, navigation and control; Satellite buses and subsystems in the nature of structural parts comprising the body of satellites and which contain payload and operating systems of the satellite, comprised primarily of satellite support structure, solar panels, solar cells for power generation, batteries for energy storage, power converters for distributing power, orbital adjust and control thrusters, attitude control sensors and actuators, thermal control systems, radiation shielding, antennas, on-board computers, electronic control systems, communications hardware and software for transmission of communications between satellites and ground control, and guidance, navigation, and control systems
Electrical and Scientific Apparatus