Satellite navigation
SYSTEM OF SATELLITES THAT PROVIDE AUTONOMOUS GEO-SPATIAL POSITIONING WITH GLOBAL COVERAGE
Satellite Navigation System; Navigation satellite; Satellite positioning system; GNSS; Satnav; Satellite navigation systems; GNNS; Sat nav; Sat nav systems; Global Navigation Satellite Systems; Gnss; Global Navigation Satellite System; SatNav; Satellite Navigation; Global navigation satellite system; Global satellite positioning system; Global navigation satellite systems; Navigation satellites; Radionavigation-satellite service; Maritime radionavigation-satellite service; Aeronautical radionavigation-satellite service; Satellite navigation system; Sat Nav; Global satellite positioning systems; Satellite positioning systems; History of satellite navigation; Position, navigation, and timing; Positioning, navigation, and timing; ARNSS
A satellite navigation or satnav system is a system that uses satellites to provide autonomous geo-spatial positioning. It allows satellite navigation devices to determine their location (longitude, latitude, and altitude/elevation) to high precision (within a few centimetres to metres) using time signals transmitted along a line of sight by radio from satellites.