Dongfanghong-1 satellite was successfully launched at Dongfeng Range in Jiuquan, Gansu Province on April 24, 1970 at 2 1: 35, which opened a new era in China's space history and made China the fifth country in the world to independently develop and launch artificial earth satellites after the Soviet Union, the United States, France and Japan. The satellite adopts spin stabilization mode. The electronic tone generator is the core part of the whole satellite, which repeatedly plays the first eight bars of the music "Dongfanghong" to the ground through the 20MHz short wave transmission system.
, the song "Dongfanghong"