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  1. Global Positioning System - Wikipedia

    • GPS satellites carry a set of nuclear detonation detectors consisting of an optical sensor called a bhangmeter, an X-ray sensor, a dosimeter, and an electromagnetic pulse (EMP) sensor (W-sensor), that form a major portion of the United States Nuclear Detonation Detection System. See more

    Summary

    The Global Positioning System (GPS), originally Navstar GPS, is a satellite-based radio navigation system owned by the United States Space Force and operated by Mission Delta 31. It is one of the global navigation … See more

    Overview

    The GPS project was started by the U.S. Department of Defense in 1973. The first prototype spacecraft was launched in 1978 and the full constellation of 24 satellites became operational in 1993.
    After … See more

    Table of Contents
     
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  2. Currently 31 GPS satellites orbit the Earth at an altitude of approximately 11,000 miles providing users with accurate information on position, velocity, and time anywhere in the world and in all weather conditions. GPS is operated and maintained by the Department of Defense (DoD).
    www.faa.gov/about/office_org/headquarters_offices…
    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..
    www.gps.gov/systems/gps/space/
    The Global Positioning System (GPS) is a constellation of navigation satellites called Navigation Satellite Timing And Ranging (NAVSTAR), maintained by the U.S. Department of Defense.
    www.usgs.gov/publications/global-positioning-system
    The control segment consists of worldwide monitor and control stations that maintain the satellites in their proper orbits through occasional command maneuvers, and adjust the satellite clocks. It tracks the GPS satellites, uploads updated navigational data, and maintains health and status of the satellite constellation.
     
  3. Global Positioning System > United States Space …

    The Global Positioning System (GPS) is a constellation of orbiting satellites that provides position, navigation, and timing data to military and civilian users …

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    • Department of Defense - GPS: The Global Positioning System

    • Who Owns the Satellites Orbiting the Earth? - Reason.com

    • Satellite Navigation - Global Positioning System (GPS)

      Currently 31 GPS satellites orbit the Earth at an altitude of approximately 11,000 miles providing users with accurate information on position, velocity, and time anywhere in the world and in all weather conditions. GPS is operated and …

    • GPS.gov: GPS Overview - GPS: The Global Positioning System

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    • GPS - NASA

    • Who runs GPS? - GPS World

      Feb 16, 2023 · The Global Positioning System is a vast and mostly unknown enterprise. This section aims to clarify who does what to maintain GPS as a fantastic global utility.

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    • Who are the GPS operators? What do they do? - GPS World

    • Global Positioning System (GPS) | Time and Navigation

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    • Every Satellite Orbiting Earth and Who Owns Them - Dewesoft

    • GPS rules everything. A new satellite launch keeps a big upgrade …

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    • How Does GPS Work? | NASA Space Place – NASA Science for …