1970 On April 24th, China successfully launched its first artificial earth satellite. The orbit of the satellite is 439 kilometers from the closest point to the Earth and 2384 kilometers from the farthest point. The included angle between the orbit plane and the equatorial plane of the Earth is 68.5 degrees.

Dongfanghong-1 flew around the earth for 114 minutes. Dongfanghong No.1 weighs173kg. Play the music of Dongfanghong at a frequency of 20.009 megacycles.

Related information:

The successful launch of Dongfanghong-1 ushered in a new era in China's space history, making 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.

Dongfanghong-1 has a design working life of 20 days. But it actually worked in space for 28 days. It is approximately spherical in shape and powered by a silver-zinc battery. Many factors are considered in spherical design.

First, it can make satellites have more space for structural utilization.

Second, it is more convenient and reliable to stick solar cells on a plane than on a curved surface. Dongfanghong-1 adopts spin stabilization mode, which is beneficial to reduce energy consumption.

China people and the Ministry of National Defense-Dongfanghong No.1, everything you want to know is here.