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太空篱笆1980年代后,美国太空监视网在全球部署了33个地面雷达站和光学望远镜。它们紧盯太空,能同时监视各国卫星的1.85万个轨道目标,号称“太空篱笆”(Space Fence)。美国太空监视网能够检测10厘米的太空飞行体,探测深度达3万千米。由于雷达和光学望远镜受天气、大气、日光、电波的影响,监测能力有限,另外,这些仪器只能间歇性地瞥见太空轨道的物体,所以美国认为这道“太空篱笆”监控功
Space Fence After the 1980s, NASA deployed 33 ground-based radar stations and optical telescopes around the world. They focus on space and can simultaneously monitor the 18,500 orbit targets of satellites in various countries, known as the Space Fence. US space surveillance network to detect 10 cm space flight body, the exploration depth of 30,000 km. Because the radar and optical telescopes have limited monitoring capability due to the influence of the weather, the atmosphere, the sunlight and the radio waves, besides, these instruments can only intermittently glimpse the objects in space orbit, so the United States considers this “space fence”