Eutelsat W2 & Sirius 3
阿丽亚娜航天 (Arianespace) · 阿丽亚娜 44L · 阿丽亚娜 2 号发射区 (ELA-2)
任务简介
W系列卫星主要设计用于为欧洲（Eutelsat W2、W3和W5）提供电信服务，并为俄罗斯和非洲（W4）提供通信服务。W2、W3和W5设计提供饱和状态下的24个转发器，W4设计提供饱和状态下的31个转发器。W系列卫星的最低运行寿命为12年。航天器基于Spacebus-3000B2平台。Sirius 3为斯堪的纳维亚地区提供直接到户电视服务。Hughes升级了NSAB位于基律纳Esrange的卫星控制中心，并为卫星控制人员提供了培训。Sirius 3于1998年10月5日由Ariane-44L H10-3成功发射。该卫星在加利福尼亚州埃尔塞贡多的综合卫星工厂建造。
原文
The W satellites are designed to provide telecommunications services primarily over Europe (Eutelsat W2, W3 and W5) and communication services over Russia and Africa (W4). W2, W3 and W5 are designed to offer 24 transponders at saturation and W4 is designed to provide 31 transponders at saturation. The W satellites have a minimum operational lifetime of 12 years. The spacecraft are based on the Spacebus-3000B2 platform. Sirius 3 provides direct-to-home television services to the Scandinavian region. Hughes upgraded NSAB's satellite control center at Esrange, Kiruna, and provided training to the satellite controllers. Sirius 3 was successfully launched on an Ariane-44L H10-3 on October 5, 1998. The satellite was built at the Integrated Satellite Factory of in El Segundo, Calif.
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