What's the name of Russian satellite navigation system?

GLONASS is a satellite positioning system managed by the Russian Space Agency. It is estimated that 24 satellites will be launched. GLONASS stands for Global Navigation Satellite System.

It is a satellite positioning system similar to the American GPS system, which was built by the former Soviet Union in the early 1980s. It also consists of three parts: satellite constellation, ground monitoring station and user equipment. It is now managed by the Russian Space Agency.

condition

At first, it took the former Soviet Union 20 years to launch 76 GLONASS satellites. By 1995, Russia had only completed the networking of 24 medium and high circular orbit satellites plus 1 spare satellites, costing more than 3 billion US dollars. This satellite network is controlled by the Russian Ministry of Defence. The GLONASS space segment also consists of 24 satellites.

Russia has adopted an open policy of both military and civilian use and no encryption for GLONASS system. The single point positioning accuracy of GLONASS system is 16m in horizontal direction and 25m in vertical direction. Its application is far less popular than GPS. In the early stage, due to economic difficulties, satellites in orbit were retired one after another. At present, there are only six satellites available in orbit, which cannot be networked independently and can only be used with GPS.

The global navigation satellite system started from 1982 10.02. This system with 1993 satellites was officially put into operation in September. In 2005, the number of satellites in the satellite constellation of the system increased from 14 in 2004 to 17. In the next few years, the satellite group will be expanded into a new generation of "Global Navigation Satellite System -M" satellites with a service life of 7 years and "Global Navigation Satellite System -K" satellites with a service life of 10 years.