What is the significance of the last networking satellite of Beidou-3 global satellite navigation system?

The 55th satellite of Beidou satellite navigation system is the last star of Beidou global system. Once successfully launched and running stably in orbit, it will mark the completion of the deployment of the Beidou global satellite navigation system constellation and the great significance of the Beidou system going out of China and into the world.

This is the third GEO satellite of Beidou-3 global satellite navigation system. Although the number of GEO series satellites is small, it plays a key role. As a big man stationed in the high-speed rail Tianjiang, he shoulders the heavy responsibility of greatly improving the overall technical indicators of Beidou-3. It also carries a lot of sharp weapons, paving the way for the on-orbit operation and application of China Beidou.

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Beidou-3 satellite navigation system provides two service modes: open service and authorized service. Open service is to provide free positioning, speed measurement and time service in the service area. The positioning accuracy is10m, the timing accuracy is 50ns, and the speed measurement accuracy is 0.2m per second.

Authorization service is to provide more secure positioning, speed measurement, timing and communication services and system integrity information for authorized users. In fact, Beidou satellite has already entered the public life. For example, after the bicycle is connected to the Beidou foundation reinforcement network, the positioning of the bicycle is upgraded from the previous 10 meter level to the centimeter level, realizing high-precision electronic fence settlement.

Baidu encyclopedia-Beidou-3 satellite

The deployment of the People's Daily Online-Beidou-3 global satellite navigation system constellation was fully completed.