QZS 2 (Michibiki) [MHI]
QZSS (Quasi Zenith Satellite System) is a Japanese satellite navigation system operating from inclined, elliptical geosynchronous orbits to achieve optimal high-elevation visibility in urban canyons and mountainous areas. The navigation system objective is to broadcast GPS-interoperable and augmentation signals as well as original Japanese (QZSS) signals from a three-spacecraft constellation.
The navigation system objective is to broadcast GPS-interoperable and augmentation signals as well as original Japanese (QZSS) signals from a three-spacecraft constellation in inclined, elliptical geosynchronous orbits.
Phase one will demonstrate the technological validation for the enhancement of GPS availability and performance and their application, using the first Quasi-Zenith Satellite (QZS 1) Michibiki. After evaluating these results, the plan moves into phase two which demonstrates the full system capability using three Quasi-Zenith Satellites, including QZS-1. JAXA is in charge of integrating the system as a whole, as well as cooperating with related research organizations to develop the High Accuracy Positioning Experiment System, the QZS Bus System and the Tracking Control System.
Three more improved QZSS satellites have been ordered in April 2013. QZS-2 and QZS-4 will also operate from the inclined 24 hour orbit, while QZS 3 will augment the system from a geostationary orbit.
|Type / Application:||Navigation|
|Contractors:||Mitsubishi Electric (MELCO)|
|Power:||2 deployable solar arrays, batteries|
|Orbit:||32618 km × 38950 km, 41° (#2) 35889 km × 36070, 40.4° (#4)|
|QZS 2 (Michibiki 2)||2017-028A||01.06.2017||Ta YLP-1||H-2A-202|
|QZS 4 (Michibiki 4)||2017-062A||09.10.2017||Ta YLP-1||H-2A-202|