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Schedule for changes in the transmission patterns of navigation messages for PNT services
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Update the User Interface Specification (IS-QZSS-MDC) for MADOCA-PPP
Upcoming Schedule for the Launch of Satellite Report for Disaster and Crisis Management (Extended Information)
Currently, Satellite Report for Disaster and Crisis Management (DC Report) distributes disaster prevention information based on disaster prevention weather information provided by the Japan Meteorological Agency (JMA).
"Satellite Report for Disaster and Crisis Management (Extended Information) " (DCX) is being developed for the distribution of J-alerts (missile launch information) and L-alerts (evacuation instructions) as well as disaster information for the Asia-Pacific region as additional information.
We would like to announce the plans for the Launch of DCX as follows.
Transmission schedule:
-Start of transmission for system test: December 13, 2023
-Start of test transmission for practical messages: Around the beginning of February, 2024
-The beginning of service of DCX transmitting J-Alert (missile launch information) and L-Alert (evacuation instructions) messages: Around April, 2024
-The beginning of service of DCX transmitting disaster information for Asia Pacific region: Around April, 2025
Target Satellites: QZS-2, QZS-3, QZS-4 and QZS-1R
Remarks:
-DCX uses the same L1S signals as the Sub-meter Level Augmentation Service (SLAS) and DC Report.
-DCX converts J-alerts, L-alerts, and Asia Pacific region disaster information into an original format and transmits them using message type 44.
- DC Report uses message type 43, which is a different message type from DCX, so there is no impact on DC Report users.
-Format specifications for DCX will be released as user interface specifications (IS-QZSS-DCX) prior to test transmission.
-The test transmission may be cancelled or interrupted depending on circumstances.
- DCX:Satellite Report for Disaster and Crisis Management (Extended Information)
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Apr.01,2024
Operational service of MADOCA-PPP has now started
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Apr.01,2024
Start of Satellite Report for Disaster and Crisis Management (Extended Information) and adoption of Common Alert Message Format
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Apr.01,2024
Start of signal authentication service
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Feb.22,2024
The Test Transmission of signal authentication data (notice of close)
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Jan.10,2024
The Test Transmission of signal authentication data (notice of GNSS signal authentication resumption and QZSS signal authentication start)
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Dec.28,2023
Update the User Interface Specification (IS-QZSS-TV) for the PTV
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Dec.21,2023
The change of transmission pattern for navigation messages in PNT services
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Dec.15,2023
The Test Transmission of signal authentication data (notice of suspension)
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Dec.18,2023
Schedule for changes in the transmission patterns of navigation messages for PNT services
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Nov.30,2023
Update the User Interface Specification (IS-QZSS-MDC) for MADOCA-PPP
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Nov.10,2023
Start of the application of the interface specification for PNT service of the 5th edition (IS-QZSS-PNT-005)
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Nov.09,2023
Implementation of the application work for the interface specification for PNT service of the 5th edition (IS-QZSS-PNT-005) (added on November 9)
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Oct.31,2023
Update the User Interface Specification (IS-QZSS-DCR) for the DC Report Service
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Oct.25,2023
Update the User Interface Specification (IS-QZSS-L1S) for the SLAS
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Sep.15,2023
Suspension of QZS-1 all operations
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Sep.01,2023
NAQU notification for MADOCA-PPP
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Aug.23,2023
Application of the interface specification for PNT service of the 5th edition (IS-QZSS-PNT-005)
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Jul.31,2023
The Test Transmission of signal authentication data has now started
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Jul.07,2023
The Test Transmission of signal authentication data
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Feb.17,2023
Update the User Interface Specification (IS-QZSS-L1S) for the SLAS
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Jan.24,2023
Release of the user interface specification (draft version) for signal authentication service
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Oct.25,2022
Update the interface specification of PNT service for 7-Satellites Constellation in advance
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Sep.30,2022
Trial service of MADOCA-PPP has now started
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Sep.22,2022
The Beginning of Trial Service of MADOCA-PPP (Switchover dates and related user interface specifications)
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Aug.01,2022
The Test Transmission of MADOCA-PPP
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Apr.01,2022
The GNSS Integrated Data Sharing System (MIRAI)
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Mar.25,2022
Suspension of QZS-1 signal transmission
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Mar.24,2022
Update the Performance Standard(PS-QZSS) for the start of QZS-1R services
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Mar.24,2022
Start of QZS-1R Services
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Mar.22,2022
Start of QZS-1R Services and Suspension of QZS-1 signal transmission
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Mar.18,2022
Update the Performance Standard (PS-QZSS) for the start of QZS-1R services
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Mar.14,2022
Start of QZS-1R Services and Suspension of QZS-1 signal transmission (Advance Notice)
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Feb.28,2022
Release of Specifications for MADOCA-PPP
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Feb.28,2022
Release of Service Performance Evaluation
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Jan.31,2022
Start of QZS-1R test signals transmission
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Jan.26,2022
Update the User Interface Specification (IS-QZSS-DCR) for the DC Report Service
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Nov.29,2021
Release of Service Performance Evaluation
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Oct.26,2021
Launch Result of the H-IIA Launch Vehicle No. 44 which carries aboard the QZS-1R
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Jul.14,2021
Update of the compliant coordinate system and User Interface Specification for CLAS
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Apr.23,2021
Reassignment of QZSS L5S PRN number completed and application of the User Interface Specification (IS-QZSS-TV-003) for the PTV started
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Apr.14,2021
Reassignment of QZSS L5S PRN number and application of the User Interface Specification (IS-QZSS-TV-003) for the PTV
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Mar.09,2021
Trial transmission of the navigation message authentication
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Feb.15,2021
Complete the update of the PNT reference frame for alignment with ITRF2014
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Feb.01,2021
Update the User Interface Specification (IS-QZSS-PNT-004) for the PNT
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Feb.01,2021
Update the PNT reference frame for alignment with ITRF2014
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Jan.27,2021
Release of Service Performance Evaluation
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Nov.17,2020
Launch of the upgraded CLAS Service corresponding to 17 augmented satellites
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Jun.19,2020
Start of Trial transmission of the Augmentation Information corresponding to IS-QZSS-L6-002 in Centi-meter Level Augmentation Service (CLAS)
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Jul.29,2019
Web URL Change notice for "Operational Information/Archive Data" due to shift from "http" to "https"(SSL)
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Nov.01,2018
Start of QZSS Services
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Sep.07,2018
Re-start of QZS test operation
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Jun.05,2018
Anomaly of a QZS in Orbit
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Apr.03,2018
Setting update of Centi-meter Level Augmentation Service (CLAS) Trial Service
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Mar.02,2018
Starting Date of QZSS Services
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Jan.17,2018
Commencement of QZS-3, QZS-4 Satellite Report for Disaster and Crisis Management (DC Report) trial service
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Jan.12,2018
Start of QZS-4 Trial Service
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Dec.19,2017
Start of QZS-3 Trial Service
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Nov.15,2017
Start of Sub-meter Level Augmentation Service (SLAS) Trial Service using QZS-2
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Sep.27,2017
Commencement of Satellite Report for Disaster and Crisis Management (DC Report) trial service
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Sep.27,2017
Start of Centi-meter Level Augmentation Service (CLAS) Trial Services using QZS-1
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Sep.22,2017
Change of Centi-meter Level Augmentation Service (CLAS) Trial Service
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Sep.15,2017
Start of QZS-2 Trial Service
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Sep.14,2017
Restart of Centi-meter Level Augmentation Service Trial Services
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Sep.04,2017
Distribution stop of Centi-meter Level Augmentation Service Trial Services
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Mar.29,2017
Start of Trial Services
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Feb.22,2017
QZS-1 Control Will be Transferred to the Cabinet Office, Followed by an Adjustment Period Before the Trial Service Start