Japan Orbits GPS-Aiding Satellite

By Kazuki Shiibashi

TOKYO — A new Japanese satellite launched Sept. 11 should eventually provide better navigation coverage over Japan.

The Quasi-Zenith System is designed to fly much higher than GPS satellites at an altitude of roughly 40,000 km. (25,000 mi.), supplementing and correcting GPS signals from its higher vantage point and providing better ...

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