China's space activities in 2011
Updated: 2011-12-30 08:12
(China Daily)
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II. Progress Made Since 2006
Since 2006, China has made rapid progress in its space industry. Breakthroughs have been made in major space projects, including human spaceflight and lunar exploration; space technology has been generally upgraded remarkably; the economic and social benefits of space applications have been noticeably enhanced; and innovative achievements have been made in space science.
1. Space Transportation System
Since 2006, Long March rockets have accomplished 67 successful launches, sending 79 spacecraft into planned orbits and demonstrating noteworthy improvement in the reliability of China's launch vehicles. The Long March rocket series have been improved, and major progress has been made in the development of new-generation launch vehicles.
2. Man-made Earth Satellites
1) Earth observation satellites
China has developed the Fengyun (Wind and Cloud), Haiyang (Ocean), Ziyuan (Resources), Yaogan (Remote-Sensing) and Tianhui (Space Mapping) satellite series, plus a constellation of small satellites for environmental and disaster monitoring and forecasting. Fengyun satellites are now capable of global, three-dimensional and multispectral quantitative observation. The Fengyun-2 geostationary Earth orbit (GEO) meteorological satellite succeeded in double satellite observation and in-orbit backup; while the Fengyun-3 polar orbit meteorological satellite succeeded in networking observation of morning and afternoon satellites. Ocean water color satellites have obtained their images of doubled width and their revisiting period reduced. The first Haiyang dynamics environmental satellite launched in August, 2011 is capable of all-weather and full-time microwave observation. The Ziyuan satellite series have seen their spatial resolution and image quality greatly enhanced. The small satellites for environmental and disaster monitoring and forecasting are now capable of disaster monitoring with medium-resolution, wide-coverage and high-revisit rate disaster monitoring. In 2010, China formally initiated the development of an important special project - a high-resolution Earth observation system.
2) Communications and broadcasting satellites
China has won successes in its high-capacity GEO satellite common platform, space-based data relays, tracking, telemetry and command (TT&C), and other key technologies, showing remarkable improvement in the technical performance of China's satellites and in voice, data, radio and television communications. The successful launch and stable operation of the Zhongxing-10 satellite demonstrated a significant increase in the power and capacity of China's communications and broadcasting satellites. Similarly, the successful launch of the Tianlian (Space Chain)-1 data relay satellite demonstrated China's preliminary capability of both space-based data relays and space-based TT&C.
3) Navigation and positioning satellites
In February 2007, China successfully launched the fourth Beidou (Big Dipper) navigation experiment satellite, further enhancing the performance of the Beidou navigation experiment system. China has comprehensively launched the building of a Beidou regional navigation system, consisting of five GEO satellites, five inclined geosynchronous orbit (IGSO) satellites and four medium-Earth-orbit (MEO) satellites. Since April 2007, China has launched 10 such satellites and has been able to provide trial services for Asia-Pacific users.
4) Scientific satellites and technological test satellites
China has developed and launched several Shijian (Practice) satellites and small and micro satellites, providing supporting platforms for space environment exploration, space scientific test and new technology demonstration.