Great Achievements in China's Space Technology

　　Ever since the opening of satellite education TV broadcasting programs over a dozen years ago, more than 30 million people have received college or technical secondary school education and training through it.

　　China has also set up a satellite direct broadcasting experimental platform to transmit CCTV and local satellite TV programs by digital compression to the vast rural areas which wireless TV broadcasting cannot cover. In this way, China's TV broadcasting coverage has been greatly increased.

　　China has about 189,000-satellite TV broadcasting receiving stations. The China broadband multi-media education satellite transmission network has also been established on the satellite direct broadcasting experimental platform to provide comprehensive remote education and information technology services.

　　3. Satellite Navigation

　　In the early 1980s, China began to use other countries' navigation satellites and develop the application technology of satellite navigation and positioning, which is now widely used in many fields including land survey, ship navigation, aircraft navigation, earthquake monitoring, geological calamity monitoring, forest fire prevention and control, and urban traffic control. After joining the COSPAS-SARSAT in 1992, China established the Chinese Mission Control Center, thus greatly improving the capability of the emergency alarm service for ships, aircraft, and vehicles.

　　  Space Science

　　China started to explore the upper atmosphere using rockets and balloons in the early 1960s. In the early 1970s, China began to use the scientific exploration and technological testing satellites of the "SJ" group in a series of space explorations and studies, and acquired a large amount of valuable data about the space environment.