Currently, there are 5 countries (India, China, USA, Russia & Japan) and the Europen Union has its own satellite navigation system.
Satellite Navigation System is a navigation system that offers real-time location services using satellites.
Countries with their own Satellite Navigation Systems
|Country||Satellite Navigation System||First Launch|
|USA||Global Positioning System (GPS)||February 22, 1978|
|China||Beidou Navigation Satellite System||October 30, 2022|
|India||Indian Regional Navigation Satellite System(IRNSS) / NAVIC (Navigation with Indian Constellation)||July 1, 2013|
|Japan||Quasi-Zenith Satellite System||September 11, 2010|
|European Union||Galileo Navigation System||October 21, 2011|