Title: List of Global Navigation Satellite Systems currently operational and in development - Defence Aviation
Headings: List of Global Navigation Satellite Systems currently operational and in development
List of Global Navigation Satellite Systems currently operational and in development
Satellite navigation system performance is based on the following :
1 – GPS of the United States of America
2 – GLONASS of Russia
3 – Galileo of the European Union
4 – BeiDou of People’s Republic of China
5 – IRNSS or NAVIC of India
6 – QZSS of Japan

Content: Let’s look at each one in more detail. 1 – GPS of the United States of America
GPS (Global Positioning System) is the United States system that uses 32 satellites that are in medium Earth Orbit. They are placed in six distinct orbital planes, and older satellites are constantly replaced by new ones. It has been in operation since 1978 and it is the most used navigation system that incorporates satellites. 2 – GLONASS of Russia
GLONASS or Global Navigation Sputnik System is a Russian satellite navigation system that is used for civilian operations. It makes use of radio navigation satellites and is also utilized by the Aerospace Defence of the Russian Forces. It consists of 24 full orbital constellations of satellites that allow for global coverage. 3 – Galileo of the European Union
Galileo is the European Union satellite navigation system introduced in 2002. The European Space Agency also makes use of this system and is used as an alternative to the United States GPS. It makes use of 30 satellites that are in medium Earth orbit.