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The Global Positioning System (GPS), originally Navstar GPS, is a satellite-based radio navigation system owned by the United States government and operated by the United States Space Force.
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Jun 21, 2020 · The Space Segment is a navigation system of at least 31 satellites, 24 (or more) of which are usually in flight and operational. These satellites fly within Earth's orbit at an altitude of 12,550 miles. Each individual satellite usually circles the Earth twice a day.
Apr 20, 2024 · Official U.S. government information about the Global Positioning System (GPS) and related topics.
GPS, space-based radio-navigation system. A GPS receiver operated by a user on Earth measures the time it takes radio signals to travel from four or more satellites, calculates the distance to each satellite, and from this calculation determines the user’s position.
