China successfully launched nine commercial satellites, including Qilu-1 launched in Taiyuan. What can commercial satellites bring to people?

The orbit height of the satellite reaches 35,786 kilometers. When flying in the same direction as the earth's rotation above the equator, the rotation period of the satellite around the earth is exactly the same as that of the earth, and its relative position remains unchanged. This satellite still seems to be hanging in the sky of the earth. It is called the geostationary orbit satellite, or simply the geostationary satellite. Satellites in geostationary orbit can see 40% of the earth's surface, which is very beneficial to communication and can realize global information transmission and exchange. General communication satellites, broadcasting satellites and meteorological satellites all choose this orbit.

Can bring more convenience and life experience to people. For example, our GPS positioning belongs to satellites, as well as the satellite positioning of our mobile phones. Our Google Maps also uses satellites to observe and use data. There are many kinds of satellites, which are simply satellite navigation: according to GPS navigation instructions and voice prompts, we can reach the destination where we have never been. Meteorological satellite: shoot satellite cloud pictures and predict weather changes. Television broadcasting satellite: watch satellite TV and listen to the communication satellite with the widest coverage of satellite broadcasting signals: use satellite phones in the global scope or no man's land. Military satellites: reconnaissance, communication and early warning. Marine satellite: a communication satellite used for terrestrial and marine radio communication.

Earth satellites can be divided into natural satellites and artificial earth satellites. The moon is the natural satellite of the earth. It can illuminate people on earth, observe time and imagine many beautiful legends. Satellites are widely used, some of which are equipped with camera equipment, which are used to shoot and spy on the ground, investigate resources and monitor the climate and pollution of the earth. Some are equipped with astronomical observation equipment for astronomical observation; Some of them are equipped with communication relay equipment. In a word, artificial satellites have different purposes because of different purposes of development, production and users. Therefore, types have brought us convenience in life and greater impetus to our scientific and technological development. Changed life and explored the unknown.