Superbird-B, also identified as Superbird-2 before launch, was a geostationary communications satellite designed and manufactured by Ford Aerospace (now SSL MDA) on the SSL 1300 platform. It was originally ordered by Space Communications Corporation (SCC), which later merged into the SKY Perfect JSAT Group. It had a mixed Ku band, Ka band, and X band payload and was lost at launch.

Yuri, also known as Broadcasting Satellite or BS, was a series of Japanese direct broadcast satellites.

The first satellite of this series, called BSE or Yuri 1, was launched in 1978. The last BS series satellite, BS-3b (Yuri 3b), was launched in 1991.