Military of China, force comment.
Military of China, force comment.

2010 年 1 月 17, 2010 China launched the third Beidou navigation satellite. Xinhua News Agency (Qinxian An photo)
Long March III carrier rocket carrying the third Beidou navigation satellite. Xinhua News Agency (Qinxian An photo)

(Reporter Baoying correspondent Tang Zhenyu) yesterday morning, China’s Xichang Satellite Launch Center in the “Long March III” launch vehicle third Beidou navigation satellite, which marked the Compass satellite navigation system has taken an important step in the construction, the satellite network is on schedule and steadily.

According to the relevant person in charge, Compass satellite navigation system from the space segment, ground segment and user segment consists of three parts, China will launch five geostationary satellites and 30 non-geostationary orbit satellites, built worldwide Compass satellite navigation system.

Compass satellite navigation system offers two services, that is opening up services and authorization services. Open service is provided free of charge in the service area positioning, velocity and timing service, positioning accuracy of 10 meters, timing accuracy of 10 nanoseconds, speed accuracy of 0.2 m/sec. Service is authorized to provide authorized users a more secure position, velocity, timing and communication services and system integrity information.

according to construction plan, around 2012, the first Compass satellite navigation system will provide coverage of the Asia-Pacific region navigation, timing and short-message communication service capabilities. 2020 to build global coverage Compass satellite navigation system. Compass satellite navigation system, the chief architect of the highest technology for the 2009 national winner Sun Jiadong Academy of Sciences.

■ news

Xichang prepare for “Chang-e II”

expected at the end of launch

Xinhua News Agency, Xinhua China Xichang Satellite Launch Center for 17, said the successful completion of China’s first lunar probe satellite “Chang-e One,” the task, they quickly put into “Chang-e II” satellite launch of the preparatory work of, and have the confidence and ability as “Chang-e One” as the successful completion of plans to the end of 2010, “Chang-e II” launch.

Xichang Satellite Launch Center, who said that they are actively preparing for the “Chang-e II” satellite launch.

China Technology and Industry for National Defense announced the end of 2009, “Chang-e II” satellite has exceeded the earth-moon transfer orbit launch, X-band monitoring and control in recent months to capture, control of the lunar orbit, deep space monitoring and control communication and the other six high-resolution stereo camera developed key technologies, is expected to launch in late 2010. “Chang-e II” main purpose is for “Chang-e III” to achieve some of the key technologies for lunar soft landing experiment.

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Photos: China successfully launched the third Beidou navigation satellite