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Performance Standard (PS-QZSS) and Interface Specification (IS-QZSS)
May.08,2025
| Performance Standard (PDF) | Interface Specification (PDF) | Service Performance Evaluation | |
|---|---|---|---|
| Satellite Positioning, Navigation and Timing Service | PS-QZSS-003 (Mar.17, 2022 / 1.1MB) PS-QZSS-004 (Oct.11, 2024 / 2.6MB)(*) |
IS-QZSS-PNT-006 (Jul. 11, 2024 / 3.9MB) |
Satellite Positioning, Navigation and Timing Service |
| Sub-meter Level Augmentation Service (SLAS) | IS-QZSS-L1S-008 (Apr. 25, 2025 / 1.2MB) |
Sub-meter Level Augmentation Service (SLAS) | |
| Centimeter Level Augmentation Service (CLAS) | IS-QZSS-L6-005 (Sep. 21, 2021 / 1.4MB) IS-QZSS-L6-006 (Jan. 21, 2025 / 1.9MB) (***) |
Centimeter Level Augmentation Service (CLAS) | |
| Satellite Report for Disaster and Crisis Management (DC Report) | IS-QZSS-DCR-014 (Apr. 25, 2025 / 4.1MB) |
- | |
| IS-QZSS-DCX-003 (Mar. 28, 2025 / 2.3MB) |
- | ||
| Positioning Technology Verification Service | IS-QZSS-TV-004 (Sep. 27, 2023 / 0.6MB) |
- | |
| MADOCA-PPP | IS-QZSS-MDC-003 (Aug. 2024 / 1.4MB)(**) |
MADOCA-PPP | |
| Signal Authentication Service | - | IS-QZSS-SAS-001 (May, 27. 2024 / 2.9MB) |
- |
<The sections: 3.2, 4, 5, 6, 7, 9>
(**) IS-QZSS-MDC-003 includes the specification of ionospheric correction message, which is scheduled to be transmitted from QZS-6 and 7. Ionospheric correction transmission will start as the operational service after the experimental service. We will inform you of the specific schedule again.
Current coverage areas of MADOCA-PPP ionospheric correction data in Internet distribution is shown in <Coverage area of MADOCA-PPP ionospheric correction data>.
(***) The following sections of IS-QZSS-L6-006 will be applied after the upgraded service of CLAS to increase the number of augmented satellites is started. Until then, please refer to IS-QZSS-L6-005. We will announce the start date of the upgraded service of CLAS on our website.
<The sections: 4.1.1.2, 4.1.2.1, 4.1.2.2.13, 5.5.7.2>
| Service Level Information |
Content | |
|---|---|---|
| MADOCA-PPP Ionospheric Correction for Experiment |
SLI-MDC-ION (Draft, February 2022 / PDF: 187KB) |
As a demonstration, the wide-range ionospheric correction for the Asia and Oceania regions is transmitted by the L6D messeges to shorten the TTFF (Timi To First Fix) of MADOCA-PPP. This document describes the reference information of this demonstration. Reference performance evaluation results: |