Positioning, Navigation, and Timing (PNT) Satellites

Japanese PNT Satellites (QZSS)


2017 – QZSS

After ## years of ##-satellite operations for the Quasi-Zenith Satellite System (QZSS), Japan’s PNT constellation, the Japan Aerospace Exploration Agency (JAXA) launched... After seven years of single-satellite operations for the…

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2016 – QZSS

In 2010, the Japan Aerospace Exploration Agency (JAXA) launched a single positioning, navigation, and timing (PNT) satellite as a start for its Quasi-Zenith Satellite System (QZSS). Japan has not launched…

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2015 – QZSS

Launched in 2010 by the Japan Aerospace Exploration Agency (JAXA), the Quasi-Zenith Satellite System (QZSS) continued through 2015 with ## satellite. JAXA intends to launch ## more QZSS satellites into…

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2005 – QZSS

Japan is developing the Quasi-Zenith system, a regional augmentation of the GPS signal, with a 2008 planned launch. Japan is developing the Quasi-Zenith system, a regional augmentation of the GPS…

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2007 – QZSS

The first launch of Japan’s Quasi-Zenith Satellite System (QZSS) is scheduled for 2009. QZSS uses ## geosynchronous satellites in orbital planes designed to have observed elevations of 60 to 70…

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2014 – QZSS

The Japan Aerospace Exploration Agency (JAXA) launched the ## satellite of its Quasi-Zenith Satellite System (QZSS) in September 2010, and continued to operate and run tests on it during 2014.…

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2008 – QZSS

Japan’s Quasi-Zenith Satellite System will supplement GPS coverage over areas of Japan that prove difficult with GPS alone. The first launch is expected in 2010.  Japan’s Quasi-Zenith Satellite System will supplement…

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2009 – QZSS

The complete constellation is planned to be in place by 2011, though no launches had been conducted by the end of 2009. Japan’s Quasi-Zenith Satellite System (QZSS) will consist of…

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2010 – QZSS

In September 2010, JAXA successfully launched the Michibiki spacecraft, the ## satellite of the Japanese Quasi-Zenith Satellite System (QZSS). This network will be comprised of ## GEO satellites operating over…

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