The Global Positioning System (GPS) is a satellite-based navigation system made up on a network of 24 satellites placed into orbit by the U.S. Department of Defence.
GPS was originally intended for military applications, but in the 1980s, the government made the system available for civilian use.
GPS works in any weather conditions, anywhere in the world, 24 hours a day.
Satellite are located in medium earth orbit (Approx. 22,000 Km above the surface of earth).
Transmit the signal (broadcast), Signal is used to identify the current location of Vehicle or Asset.
Receiver determines the receivers locations accurately using multiple signals.
Location details are In terms of Latitude, longitude and altitude.
Along with date, time, direction, speed… Satellites have built in Atomic clock.