China has launched several satellites.

As of February 2020, 192 satellites are in orbit. The number ranks second in the world, second only to the United States. Sputnik is a prosperous family. According to the purpose, it can be divided into three categories: scientific satellites, technical experimental satellites and applied satellites.

Scientific satellites are satellites used for scientific exploration and research, mainly including space physics exploration satellites and astronomical satellites, which are used to study the atmosphere, radiation belt, magnetosphere, cosmic rays and solar radiation of a planet.

And can observe other stars. At present, most of the artificial satellites in the world are artificial earth satellites, and there are also artificial satellites such as artificial Mars satellites.

Extended data:

China's first artificial satellite generally refers to Dongfanghong-1 satellite, and the information is as follows:

1, the designed working life of the satellite is 20 days. On May 14 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.

2. Satellite mass: 173 kg, satellite shape: spherical 72-sided, diameter 1 m, perigee: 439 km, apogee: 2384 km, inclination: 68.44 degrees, period: 1 14 minute.

3. Design shape: The satellite is a 72-sided body close to a quasi-sphere, and its attitude is determined by a solar goniometer and an infrared horizon, with a stable spin attitude mode and a rotation speed of 120 rpm.