You all know very well about GPS (Global Positioning System) that it's a space-based satellite navigation system that provides location and time information.
But do you know that there are some other satellite navigation system are also available which owned by different countries.
> GPS (Global Positioning System) also known as NAVSTAR - USA
> GLONASS - Russia.
> BeiDou navigation satellite system - China
> Galileo positioning system - European Union
> IRNSS (Indian Regional Navigation Satellite System) - India
> QZSS (Quasi-Zenith Satellite System) - Japan
> DORIS (Doppler Orbitography and Radiopositioning Integrated by Satellite) - France
*Operational global satellite navigation system exists in the world today are GPS & GLONASS
**Global satellite navigation system in the development are GALILEO & BEIDOU 2 (also known as COMPASS)
***Regional satellite navigation system exists today are BEIDOU, QZSS & IRNSS.
