Commercial satellites provider Space Systems Loral (SSL) will provide a broadcasting satellite for Broadcasting Satellite System Corporation (B-SAT), a broadcasting satellite operator in Japan. B-SAT will use the satellite to provide DTH television services in Japan.

The BSAT-4a satellite represents is SSLís fourth satellite contract award for the Japanese market in the last two years. The BSAT-4a satellite will have 24 Ku-band transponders and will expand the availability of advanced TV services such as HD and 4K/8K ultra-high definition television. BSAT-4a is based on the SSL 1300 platform. The satellite is designed to provide service for 15 years or more.