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Eutelsat 115 West B (previously SATMEX 7) is a communications satellite that is scheduled to be operated by Eutelsat, providing video, data, government, and mobile services for the Americas. The satellite was designed and manufactured by Boeing Space Systems, and is a Boeing 702SP model communication satellite. It will be located at 115 degrees West longitude. It was launched on board a SpaceX Falcon 9 rocket on 2 March 2015 (UTC time). The satellite is solely propelled by electrically powered spacecraft propulsion, with the on board thrusters used for both geostationary orbit insertion and station keeping. The satellite had a launch mass of . It is notable for being the first commercial communications satellite in orbit to use electric propulsion, providing a significant weight savings. Eutelsat 115 West B was launched with another Boeing 702SP satellite, ABS-3A, on the same rocket. Eutelsat 115 West B is planned to be the first in a family of four satellites in the Eutelsat constellation. The satellite is scheduled for entry into service in November 2015.〔http://spaceflightnow.com/2015/03/17/innovative-satellites-begin-maneuvers-with-all-electric-thrusters/〕 == Launch == The launch occurred on March 2, 2015 at 03:50 UTC and the satellite has been deployed in the planned supersynchronous transfer orbit. The launch is also notable for being the first flight of Boeing's stacked satellite configuration for the Boeing 702SP, a configuration Boeing designed specifically to take advantage of the SpaceX Falcon 9 v1.1 capabilities.〔 〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Eutelsat 115 West B」の詳細全文を読む スポンサード リンク
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