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Echostar 21
国际发射服务公司 (ILS) · 质子-M / 微风-M · 81/24 号发射台 (81P)
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任务简介
Echostar 21，原名TerreStar 2，是由Space System/Loral公司建造的一颗地球静止轨道通信卫星。该卫星配备S波段转发器，任务是为欧洲提供移动宽带服务。航天器基于SSL的1300平台，将定点于东经10.25°轨位。
原文
Echostar 21, formerly known as TerreStar 2, is a geostationary communications satellite built by Space System/Loral company. Equipped with S-band transponders, satellite is tasked with providing mobile broadband services over Europe. The spacecraft, based on SSL’s 1300 bus, will be located at the 10.25° East orbital slot.
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