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QZS-1 Control Will be Transferred to the Cabinet Office, Followed by an Adjustment Period Before the Trial Service Start

Feb.22,2017
National Space Policy Secretariat, Cabinet Office 

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.

Process from the transfer of QZS-1 control to the start of practical operation

Process from the transfer of QZS-1 control to the start of practical operation

Trial services

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.

END