QZS-1 Control Will be Transferred to the Cabinet Office, Followed by an Adjustment Period Before the Trial Service Start
Control of the first Quasi-Zenith Satellite (QZS-1), which is currently operated by the Japan Aerospace Exploration Agency (JAXA), will be transferred to the Cabinet Office on February 28, 2017.
After the transfer of control, operation will be started by Quasi-Zenith Satellite System Services Inc. (QSS), the company consigned to conduct the Business for Operation, Etc. of the Quasi-Zenith Satellite System (QZSS).
Adjustments are required to confirm performance and compatibility with ground systems built by QSS before the start of the trial services. This adjustment period is expected to last around one month after the transfer of control. During this period, users will not be able to use QZS signals due to temporary signal transmission outages and alert flag (*) setting.
The trial service start date will be announced on this website after it is determined.
(*) Many receivers check alert flags and ignore satellites that do not have such flags set. Therefore, they do not impact positioning results.
The trial services will offer services with the same performance as the operation starting in FY2018, sequentially and on a provisional basis. The services to be offered are outlined on this website’s User Interface Specifications page.
Information about provided services after the transfer of QZS-1 control
Information about provided services will be available on this website’s Operational status／NAQU information page after the trial service start.
NAQU information was sent via e-mail when QZS-1 was operated by JAXA. However, this information will instead be posted on Twitter. To view this information, please follow @QZSS_Status on Twitter. (Twitter user top page: https://twitter.com/QZSS_Status)
Application demonstration after the transfer of QZS-1 control
After the trial services are started, the same signals will be constantly transmitted as the application demonstration signals, so there is no need to modify application demonstration schedules.
Demonstration tests can be conducted freely using QZS, and there is no need to submit an application demonstration application. The procedures are simplified and consist of just borrowing a receiver.
Receiver borrowing procedures are posted on this website’s Application Demonstration page.
Update of the compliant coordinate system and User Interface Specification for CLAS
Reassignment of QZSS L5S PRN number completed and application of the User Interface Specification (IS-QZSS-TV-003) for the PTV started
Reassignment of QZSS L5S PRN number and application of the User Interface Specification (IS-QZSS-TV-003) for the PTV
Trial transmission of the navigation message authentication
Complete the update of the PNT reference frame for alignment with ITRF2014
Update the User Interface Specification (IS-QZSS-PNT-004) for the PNT
Update the PNT reference frame for alignment with ITRF2014
Release of Service Performance Evaluation
Launch of the upgraded CLAS Service corresponding to 17 augmented satellites
Start of Trial transmission of the Augmentation Information corresponding to IS-QZSS-L6-002 in Centi-meter Level Augmentation Service (CLAS)
Web URL Change notice for "Operational Information/Archive Data" due to shift from "http" to "https"(SSL)
Start of QZSS Services
Re-start of QZS test operation
Anomaly of a QZS in Orbit
Setting update of Centi-meter Level Augmentation Service (CLAS) Trial Service
Starting Date of QZSS Services
Commencement of QZS-3, QZS-4 Satellite Report for Disaster and Crisis Management (DC Report) trial service
Start of QZS-4 Trial Service
Start of QZS-3 Trial Service
Start of Sub-meter Level Augmentation Service (SLAS) Trial Service using QZS-2
Commencement of Satellite Report for Disaster and Crisis Management (DC Report) trial service
Start of Centi-meter Level Augmentation Service (CLAS) Trial Services using QZS-1
Change of Centi-meter Level Augmentation Service (CLAS) Trial Service
Start of QZS-2 Trial Service
Restart of Centi-meter Level Augmentation Service Trial Services
Distribution stop of Centi-meter Level Augmentation Service Trial Services
Start of Trial Services