GPS: The Global Positioning System
Nov 27, 2024 · Official U.S. government information about the Global Positioning System (GPS) and related topics
GPS.gov: GPS Overview - GPS: The Global Positioning System
Feb 22, 2021 · The Global Positioning System (GPS) is a U.S.-owned utility that provides users with positioning, navigation, and timing (PNT) services. This system consists of three segments: the space segment, the control segment, and the user segment.
United States Policy - GPS: The Global Positioning System
Jan 3, 2022 · The U.S. Space-Based Positioning, Navigation, and Timing Policy of 2021, signed by President Trump, establishes the following goal: “[T]o maintain United States leadership in the service provision, and responsible use of global navigation satellite systems, including GPS and foreign systems.”
GPS.gov: Marine Applications - GPS: The Global Positioning System
Nov 17, 2021 · Mariners and oceanographers are increasingly using GPS data for underwater surveying, buoy placement, and navigational hazard location and mapping. Commercial fishing fleets use GPS to navigate to optimum fishing locations, track fish migrations, and ensure compliance with regulations.
Department of Defense - GPS: The Global Positioning System
Jul 22, 2024 · Develops, acquires, operates, sustains, and secures the Global Positioning System, including the satellites, control segment, and military user equipment. Co-chairs the National Executive Committee for Space-Based Positioning, Navigation, and Timing and its subordinate bodies.
GPS.gov: GPS Performance - GPS: The Global Positioning System
Sep 24, 2024 · The assertions evaluated include those of accuracy, integrity, continuity, and availability of the GPS signal-in-space (SIS) along with the assertions on accuracy of positioning and time transfer. 2022 GPS SPS Performance Analysis
GPS.gov: Applications - GPS: The Global Positioning System
Nov 25, 2014 · GPS saves lives by preventing transportation accidents, aiding search and rescue efforts, and speeding the delivery of emergency services and disaster relief. GPS is vital to the Next Generation Air Transportation System (NextGen) that will enhance flight safety while increasing airspace capacity.
Augmentation Systems - GPS: The Global Positioning System
Feb 10, 2022 · Over 200 private, public, and academic organizations contribute data from almost 2,000 GPS tracking stations to CORS. The Online Positioning User Service (OPUS) offers free post-processing of GPS data sets to the centimeter level using CORS information.
GPS.gov: GPS Accuracy - GPS: The Global Positioning System
Mar 3, 2022 · High-end users boost GPS accuracy with dual-frequency receivers and/or augmentation systems. These can enable real-time positioning within a few centimeters, and long-term measurements at the millimeter level.
Frequently Asked Questions - GPS: The Global Positioning System
Since it was declared operational in 1995, the Global Positioning System has never been deactivated, despite U.S. involvement in wars, anti-terrorism, and other military activities. Millions of users around the world have been monitoring and recording real-time GPS performance on a continuous basis since its inception.