Navigation

4 entries

GPS Satellite Network

1978 (first)Navigation

31 active satellites in the constellation. Provides positioning accurate to within 1.5 m. Operated b...

Galileo Satellite Network

2011 (first)Navigation

The European global navigation satellite system. 28 satellites in orbit. Provides accuracy within 1 ...

GLONASS

1982 (first)Navigation

The Russian global navigation satellite system. The first satellites launched in 1982 under the Sovi...

BeiDou

2000 (first)Navigation

The Chinese satellite navigation system. Started as a regional system with satellites launched from ...