“东方红一号”卫星是中国的第一颗人造地球卫星,于1970年4月24日21时35分用“长征一号”运载火箭从酒泉卫星发射中心发射升空,21时48分进入预定轨道。按时间先后顺序,我国是继苏、美、法、曰之后,世界上第五个用自制火箭发射国产卫星的国家。由此幵创了中国航天史的新纪元。该卫星由以钱^森为首任院长的中国空间技术研究院研制,它的主要任务是向太空播放《东方红》乐曲,同吋逬行卫星技术试验,探测电离层和大气密度。卫星外形为直径1 m的近球状72面体, The “Dongfanghong No.1” satellite was China’s first man-made earth satellite, which was launched from the Jiuquan Satellite Launch Center at 21:45 on April 24, 1970 using the “Long March One” launch vehicle. 48 minutes into the scheduled orbit. According to the chronological order, our country is the fifth country in the world to launch homemade satellites with self-made rocket after the Soviet Union, the United States, France and Japan. This created a new era of China’s space history. The satellite was developed by China Institute of Space Technology, the first president of Qian Sen. Its main task is to broadcast “Dongfanghong” music in space and carry out experiments in satellite technology to detect ionospheric and atmospheric densities. Satellite shape of the diameter of 1 m nearly spherical surface 72,