Congratulations! China successfully launched tiantong-1-02. This is a satellite in the tiantong-1 satellite mobile communication system independently developed and constructed by China, which is based on the dongfanghong-4 satellite platform.

At 23:59 on November 12, China successfully launched tiantong-1-02 into orbit with long march-3b carrier rocket at Xichang Satellite Launch Center, and the launch mission was a complete success.

The launch of tiantong-1-02 satellite is developed by the Fifth Academy of China Aerospace Science and Technology Group Co., Ltd., which is an important part of tiantong-1 satellite mobile communication system.

One belt, one road, will expand the coverage of the “one belt” Road area, and provide communication convenience for multinational employees, “tour pal” and fishermen who are interested in extreme tourism on the basis of the coverage of our country’s land (including marine territory) on orbit. “02”

After the launch of tiantong-1-02 satellite into orbit, it will form a space-time integrated mobile communication network with the ground mobile communication system to provide all-weather, all-time, stable and reliable voice, short message, data and other mobile communication services for users in China and its surrounding areas, the Middle East, Africa and most of the sea areas of the Pacific Ocean and the Indian Ocean. This mission is the 352nd flight of the long march series of launch vehicles.

Tiantong-1-02 satellite is developed based on dongfanghong-4 satellite platform. The core components have been independently controlled, and the key technologies have independent intellectual property rights. The platform and payload of tiantong-1-02 satellite are optimized according to the use requirements, so as to enhance the flexibility of use, break through the key technologies of integrated satellite ground resource dynamic management and multi satellite joint control, and improve the resource utilization efficiency and system service capability.

According to reports, tiantong-1 satellite mobile communication system is a satellite mobile communication system independently developed and constructed by China, and also an important part of China’s space information infrastructure. The system is composed of space segment, ground segment and user terminal. The space segment is composed of multiple geosynchronous orbit mobile communication satellites.

In 2019, the global satellite industry will reach 286 billion US dollars

In recent years, the output value growth of satellite industry has gradually stabilized, and the scale of output value has increased steadily. According to the data of the report on the status of satellite industry in 2019, the total revenue of global satellite industry in 2018 was 277.4 billion US dollars, up 3.28% year on year. In 2019, the global satellite industry will reach US $286 billion, with a year-on-year growth of 3.10%.

Up to now, there are 10 LEO satellite projects with more than 30 satellites in China constellation plan, and the total number of satellites planned to be launched is 1900. The earth’s low earth orbit can hold about 60000 satellites, and the Ku and Ka communication band resources mainly used by LEO satellites are gradually saturated. At present, the world is on the eve of the intensive launch of man-made satellites. It is estimated that by 2029, a total of about 57000 LEO satellites will be deployed in the earth’s low earth orbit, and there will be little available space for Leo positions.

(Comprehensive from people’s daily,

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