Home | GPS.gov
May 13, 2025 · The Global Positioning System (GPS) is an essential element of a global information infrastructure. The free, open, and dependable nature of GPS has led to the …
Systems | GPS.gov
Jan 23, 2018 · GPS is operated and maintained by the U.S. Space Force. GPS.gov is maintained by the National Coordination Office for Space-Based Positioning, Navigation, and Timing.
GPS: The Global Positioning System
Official U.S. government information about the Global Positioning System (GPS) and related topics
What Can GPS Do? | GPS.gov
GPS is an essential element of a global information infrastructure. The free, open, and dependable nature of GPS has led to the development of hundreds of applications affecting …
GPS for Mapping | GPS.gov
GPS supports the accurate mapping and modeling of the physical world — from mountains and rivers to streets and buildings to utility lines and other resources.
Interface Control Documents (ICDs) & Interface Specifications (ISs)
Information on the civil GPS signals and codes broadcast at the L1, L2, and L5 frequencies. The communication boundaries between the Global Positioning System and other systems, as well …
GPS.gov: Interface Control Documents
Feb 5, 2025 · The communication boundaries between the Global Positioning System and other systems, as well as within the GPS itself, are known as interfaces. Interface Control …
GPS and Telling Time | GPS.gov
In addition to longitude, latitude, and altitude, the Global Positioning System (GPS) provides a critical fourth dimension – time. Each GPS satellite contains multiple atomic clocks that …
GPS Accuracy | GPS.gov
How accurate is GPS for speed measurement? As with positioning, the speed accuracy of GPS depends on many factors. The government provides the GPS signal in space with a global …
Control Segment | GPS.gov
The GPS control segment consists of a global network of ground facilities that track the GPS satellites, monitor their transmissions, perform analyses, and send commands and data to the …