Dongfanghong-1 satellite is the first artificial earth satellite launched by China. It was developed by China Academy of Space Technology, with Qian Xuesen as the first president, and was launched at 2 1970 at 0: 35 on April 24th. The successful launch of the satellite marks that China has become the fifth country in the world to launch a domestic satellite with a homemade rocket after the Soviet Union, the United States, France and Japan.

The designed working life of the satellite is 20 days. In May 1970, the satellite stopped transmitting signals and lost contact with the ground. Because the perigee of Dongfanghong-1 satellite is high, Dongfanghong-1 satellite is still in orbit.

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The successful launch of Dongfanghong-1 satellite is a monument in China's space history, and at the same time, it has accumulated very valuable experience: China's socialist system has the advantage of concentrating on doing great things; The development of space industry can promote the overall leap of China's scientific and technological level; Only by making a scientific and reasonable plan according to the reality can our efforts be successful; The conditions are not equal, creating conditions, basing ourselves on ourselves and innovating independently will certainly open up a new world of high technology.

Launching an artificial earth satellite is a very complicated systematic project, including the development of launch vehicles, the construction of launch sites, the development of satellite bodies and scientific instruments carried by satellites, and the establishment of ground observation networks. Every part of it is a comprehensive application of high technology and intellectual innovation. Dongfanghong-1 satellite was successfully developed on the basis of overcoming a series of technical difficulties such as structural system, thermal control system and energy system, music device and short-wave telemetry system, tracking system, antenna system and scientific detection system.

Since 1965, when the satellite engineering development task was included in the national plan and it was clearly planned to be launched around 1970, China successfully developed Dongfanghong-1 satellite and Long March-1 rocket, and at the same time, Jiuquan Satellite Launch Center and TT&C network were built in 1970.

The successful launch of 1 satellite proves that the technical performance of these systems is reliable, which not only successfully completed the scheduled tasks at that time, but also laid a solid foundation for the later development of China's space industry and provided valuable experience. Therefore, its successful launch is of epoch-making significance in China's space history.

Baidu encyclopedia-Dongfanghong No.1