[瑞士《电信杂志》1977年7月报道] 1977年4月20日,美国用德尔他2914运载火箭,从东部发射场发射了欧洲空间局的对地静止卫星。这是世界上第一颗对地静止科学卫星,主要目的是研究磁层,着重研究电磁波和电磁场,以及在广泛能量范围内的粒子分布。发射故障卫星发射后不久,东部发射场就宣布,第二级和第 [Swiss Telecommunications Ministry, July 1977] On April 20, 1977, the United States launched the European Space Agency’s geostationary satellite from the Eastern Launch Site using the Deltas 2914 launch vehicle. This is the world’s first geostationary scientific satellite, the main purpose is to study the magnetosphere, focusing on electromagnetic and electromagnetic fields, and particle distribution over a wide range of energies. Shortly after launch of the satellite launch, the eastern launch site was declared second and seventh