Broadcasting Satellite System Corporation (B-SAT) is a unique operator of broadcasting satellites in 12GHz BSS band in Japan. The company was established in April 1993 and is located in Tokyo, Japan. Since then, B-SAT has worked toward providing stable satellite operations and continuity of broadcast services. B-SAT currently owns and manages five satellites: BSAT-3a, BSAT-3b and BSAT-3c for digital broadcast services, BSAT-2a and BSAT-2c for backup satellites. In addition, B-SAT provides Japanese broadcasters with uplink services for conveying digital broadcast programs to satellites.