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- The history of GPS is as follows:
- The U.S. Department of Defense started the GPS project in 1973.
- The first prototype spacecraft was launched in 1978.
- The full constellation of 24 GPS satellites became operational in 1993.
- Other countries have also created their own satellite navigation systems, contributing to the global navigation satellite system (GNSS)12.
Learn more:✕This summary was generated using AI based on multiple online sources. To view the original source information, use the "Learn more" links.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.en.wikipedia.org/wiki/Global_Positioning_SystemThe first launches began in 1978 and reached a full constellation of 24 GPS satellites in 1993. Since that time, Russia, Europe, China, India and Japan have all created their own constellations. All of those systems combined with GPS make up the global navigation satellite system (GNSS), which totals more than 120 satellites.www.gpsworld.com/the-evolution-of-gps-satellites-… - People also ask
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List of GPS satellites - Wikipedia
As of 15 August 2023 , 83 Global Positioning System navigation satellites have been built: 31 are launched and operational, 4 are unhealthy or in reserve, 41 are retired, 2 were lost during launch, and 1 prototype was never launched. 4 Block III satellites have completed construction and have been … See more
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