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JCSAT-4
JCSAT-4 was known as JCSAT-R until it was sold to INTELSAT in 2009 (Intelsat 26). It is a geostationary communications satellite designed and manufactured by Hughes (now Boeing) on the HS-601 satellite bus. It was originally ordered by JSAT Corporation, which later merged into the SKY Perfect JSAT Group. It has a mixed Ku-band and C-band payload and was used as an on orbit spare. Satellite description The spacecraft was designed and manufactured by Hughes on the HS-601 satellite bus. It had a launch mass of , a dry mass of and a 12-year design life. When stowed for launch, its dimensions were . With its solar panels fully extended it spanned , and its width when its antennas were fully deployed was . Its power system generated approximately 5 kW of power due to two wings with four solar panels each. It also had a single NiH2 battery composed of 30 cells and a 200 Ah charge. It would serve as on orbit backup for the JSAT fleet. Its propulsion system was composed of an R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
JSAT Corporation
JSAT Corporation (JSAT) was the first private Japanese satellite operator, which owned the JSAT satellites, as well as operated and partially owned the N-Star with NTT DoCoMo. Its origins can be traced to the funding of Japan Communications Satellite Company (JCSAT) and Satellite Japan Corporation in 1985. Both companies merged into Japan Satellite Systems Inc. in 1993. In 2000 the company was renamed as JSAT Corporation and was listed in the First Section of the Tokyo Stock Exchange. On September 1, 2008, the company was merged into the SKY Perfect JSAT Group. History With the opening of the Japanese satellite communications market to private investment, Japan Communications Satellite Company (JCSAT) and Satellite Japan Corporation were founded in 1985. In June of the same year, JCSAT awarded an order to Hughes Space and Communications for two identical satellites, JCSAT-1 and JCSAT-2, based on the spin-stabilized HS-393 satellite bus. JCSAT-1, the first commercial Japane ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |