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Start of Sub-meter Level Augmentation Service (SLAS) Trial Service using QZS-2

National Space Policy Secretariat, Cabinet Office 

Now, Satellite Positioning Services, Centimeter Level Augmentation Service (CLAS), and Satellite Report for Disaster and Crisis Management (DC Report) using QZS-2 has been starting. From now on, as for Sub-meter Level Augmentation Service, the trial service started from Nov. 14, 2017, because the authorization work to confirm performance and compatibility with ground systems have been made.

SLAS trial service will offer service with the same performance as the operation starting in FY2018. The details are shown on this website’s User Interface Specifications page.

Information about provided services

Information about provided services is available on this website’s Operational status / NAQU information page.

NAQU information is provided via Twitter. To view this information, please follow @QZSS_Status on Twitter. (Twitter user top page:

Borrowing receivers for application demonstration

While the trial services are available, application demonstrations can be conducted freely using QZS. Receivers for application demonstration can be borrowed at no charge. If you would like to borrow a receiver, please read the information on the Application Demonstration page and then apply.

Receivers cannot be directly loaned to people outside of Japan. However, a corporation in Japan may borrow a receiver and use it in other countries at its own cost and responsibility.