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1970年4月24日,中国从酒泉卫星发射场,使用自制的“长征”一号运载火箭,将173千克重的中国第一颗人造卫星“东方红”一号送入倾角68.5度,近地点439公里、远地点2384公里的椭圆形轨道。中国成为继美、苏、法、日之后,第5个能独立发射卫星的国家,并拥有将300千克重的卫星,射入倾角为70度、高度为440公里轨道的运载能力。 “长征”一号是三级串联式运载火箭,适用于发射科学实验和应用卫星,是“长征”系列运载火箭中发射中、小型卫星的运载工具。“长征”一号的研制始于1965年10月。它是在单级中程火箭的基础上发展起来的。从单级火箭到多级火箭,“长征”一号解决了各级火箭之间、火箭与卫星之间的连接与分
On April 24, 1970, China sent 173 kg of China's first satellite, “Dongfanghong” 1, to the dip of 68.5 from the Jiuquan Satellite Launch Site using a homemade “Long March” rocket. Degree, near the location of 439 km, 2384 km apogee oval track. China has become the fifth country capable of independently launching satellites after the United States, the Soviet Union, France, Japan and has a carrying capacity of 300 kilograms of satellites into an orbit at a tilt of 70 degrees and a height of 440 kilometers. “Long March ” One is a three-stage tandem rocket suitable for launching scientific experiments and applied satellites and is the launch vehicle for medium and small satellites in the “Long March” series of launch vehicles. “Long March ” One of the development began in October 1965. It is based on a single-stage medium-range rocket. From single-stage rockets to multi-stage rockets, the “Long March” solves the connection and division between rockets at all levels, rockets and satellites