Japan currently has the quasi-zenith satellite system, or QZSS, with four satellites for a regional navigation system that first went into operation in 2018. The Michibiki 6 will be the fifth of ...

It is the fifth spacecraft in the Quasi-Zenith Satellite System, a satellite network with multiple orbits designed to ensure that at least one satellite is positioned near the zenith over Japan at ...

In 2011, JAXA selected Spirent simulation technology to verify the performance of early Quasi Zenith Satellite System (QZSS) receivers, and Spirent simulators have supported multiple enhancements ...