Japan’s Quasi-Zenith Satellite System (QZSS) will improve the accuracy of signals from GPS satellites

I have a pleasure to recall that, Japan’s Quasi-Zenith Satellite System (QZSS) will begin operating in 2018.  It is interesting to observe that, the QZSS will be formed from a constellation of Japan's positioning satellites, which Mitsubishi Electric developed in support of the Office on National Space Policy, Cabinet Office (Government of Japan). 

In effect, the satellites will be in geosynchronous orbit with an inclination of 45 degrees in order to pass near their zenith over Japan and above the Asia-Oceania region. This will provide seamless service regardless of geography, and significantly improve the accuracy of positioning in areas where signals from GPS satellites cannot be clearly received due to skyscrapers or natural terrain.