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Positioning, Navigation, and Timing (PNT) Satellites


2018 – Galileo

In contrast to the PNT systems operated by other nations (except Japan), two European civil government organizations (the EU) and the ESA) share acquisition, management and operation of the Galileo…

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2018 – BeiDou/CentiSpace

Of all the nations deploying and operating PNT satellites in 2018, China was the busiest. At the beginning of 2018, the nation’s PNT system, known as BeiDou (Compass), consisted of…

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2017 – PNT Ground Networks

During 2017, the United States Air Force still conducted operations with decades-old ground equipment. The ground network consisted of 11 command and control antennas and a total of 16 monitoring…

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2017 – GPS

The U.S. Air Force (USAF) managed 31 operational GPS satellites during 2017, seven more than the minimum 24 GPS satellites required for effective operations. Even though the U.S. number of…

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2017 – GLONASS

Russia’s share of operational PNT satellites increased from 21% in 2016 to 26% in 2017. Operating the Global Navigation Satellite System (GLONASS), the nation was tied with China in overall…

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2017 – QZSS

After seven years of single-satellite operations for the Quasi-Zenith Satellite System (QZSS), Japan’s PNT constellation, the Japan Aerospace Exploration Agency (JAXA) launched three more QZSS satellites into orbit during 2017.…

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