Далее, что такое Compass:
The Compass Navigation Satellite System (CNSS), or BeiDou 2, is China’s second-generation satellite navigation system capable of providing continuous, real-time passive 3D geo-spatial positioning and speed measurement. The long-term goal is to develop a global navigation satellite network similar to the GPS and GLONASS.
The CNSS will provide two types of services: a free service for civilian users with positioning accuracy of within 10 metres, velocity accuracy of within 0.2 m/s and timing accuracy of within 50 nanoseconds; as well as a licensed service with higher accuracy for authorised and military users only.
The completed system for a global coverage will comprise 25~35 satellites, including 4 Geostationary Orbit (GEO) satellites (58.75° E, 80° E, 110.5° E, and 140° E). CNSS satellites are based on the DongFangHong 3 (DFH-3) satellite bus, [size=16]with a designed life span of eight years.[/size]
Public Name | Launch Date | Launch Cetre | Launch Vehicle | Orbit
Compass-M1 14 April 09 Xichang CZ-3A MEO
Compass-G2 15 Apr 09 Jiuquan CZ-3C GEO
Отредактировано VasYa (24.09.2009 16:28:02)
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