N-Star B

N-STAR B was a geostationary communications satellite originally ordered by a consortium including NTT DoCoMo and JSAT Corporation, and later fully acquired by JSAT, which was merged into SKY Perfect JSAT Group. It was designed and manufactured by Space Systems/Loral on the SSL 1300 platform. It had a launch weight of approximately 3,400 kg and a 10-year design life. Its payload is composed of 6 C band, 11 Ka band, 8 Ku band, and 1 S band transponders.