Start of the message distribution with improved number of augmented signals and satellites in MADOCA-PPP
We would like to inform you that the transmission of the messages with improved number of augmented signals and satellites in MADOCA-PPP has started on July 7, 2025.
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Jul.04,2025Announcement of the signal switching for PNT service on QZS-1R
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Jul.02,2025Schedule for the start of the message distribution with improved number of augmented signals and satellites in MADOCA-PPP
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Jul.01,2025Announcement of the operation mode switch for the PTV signal (L5S) on QZS-1R
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Jun.25,2025L1C/B support of Multi-GNSS Integrated Real time and Archived Information system (MIRAI)
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Jun.13,2025Update the User Interface Specification (IS-QZSS-L6) for CLAS and CLAS test library, CLASLIB, and the Test Transmission from QZS-3
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Jun.10,2025Start of QZS-6 Services
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Jun.02,2025Delay of the transition to the Health "BAD" status in PNT services
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May.28,2025Plan for support of multi-frequency positioning in MADOCA-PPP and request for support of MADOCALIB v2.0
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May.21,2025Preparation Status of QZS-6
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May.08,2025Update the User Interface Specification for the SLAS and the DC Report Service
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Apr.01,2025Update the User Interface Specification for the DC Report Service (Extended Information)
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Feb.21,2025Scheduled Outage of SBAS signal in the SBAS Transmission Service
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Feb.14,2025Release of CLAS test library, CLASLIB v0.8.0
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Feb.05,2025Release of reference service performance evaluation of MADOCA-PPP Wide-area Ionospheric Correction Information
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Jan.22,2025Update the User Interface Specification for CLAS
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Dec.05,2024Update the User Interface Specification (IS-QZSS-DCX) for the DC Report Service (Extended Information)
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Dec.02,2024Release of MADOCA-PPP test library, MADOCALIB v1.4
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Dec.02,2024Update of the coverage areas of ionospheric correction data for the Internet distribution of MADOCA-PPP
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Oct.23,2024Scheduled Outage of SBAS signal in the SBAS Transmission Service
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Oct.22,2024Update of Performance Standard (PS-QZSS)
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Sep.18,2024Scheduled Outage of SBAS signal in the SBAS Transmission Service
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Sep.13,2024Release of MADOCA-PPP test library, MADOCALIB v1.3
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Sep.13,2024Update the User Interface Specification (IS-QZSS-SAS) for QZNMA
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Sep.03,2024Update the User Interface Specification (IS-QZSS-MDC) for MADOCA-PPP
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Jul.12,2024Update the User Interface Specification (IS-QZSS-PNT-006) for the PNT
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Jul.01,2024Start of the Internet distribution of MADOCA-PPP and release of MADOCALIB v1.2
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Jun.19,2024Internet distribution of MADOCA-PPP
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Jun.03,2024Update the User Interface Specification (IS-QZSS-DCR) for the DC Report Service
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Apr.01,2024Operational service of MADOCA-PPP has now started
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Apr.01,2024Start of DCX and adoption of Common Alert Message Format
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Apr.01,2024Start of signal authentication service
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Feb.22,2024The Test Transmission of signal authentication data (notice of close)
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Jan.10,2024The Test Transmission of signal authentication data
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Dec.28,2023Update the User Interface Specification (IS-QZSS-TV) for the PTV
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Dec.21,2023The change of transmission pattern for navigation messages in PNT services
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Dec.18,2023Schedule for changes in the transmission patterns of navigation messages for PNT services
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Dec.15,2023The Test Transmission of signal authentication data (notice of suspension)
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Dec.07,2023Upcoming Schedule for the Launch of Satellite Report for Disaster and Crisis Management (Extended Information)
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Nov.30,2023Update the User Interface Specification (IS-QZSS-MDC) for MADOCA-PPP
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Nov.10,2023Start of the application of the interface specification for PNT service of the 5th edition (IS-QZSS-PNT-005)
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Nov.09,2023Implementation of the application work for the interface specification for PNT service of the 5th edition
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Oct.31,2023Update the User Interface Specification (IS-QZSS-DCR) for the DC Report Service
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Oct.25,2023Update the User Interface Specification (IS-QZSS-L1S) for the SLAS
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Sep.15,2023Suspension of QZS-1 all operations
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Sep.01,2023NAQU notification for MADOCA-PPP
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Aug.23,2023Application of the interface specification for PNT service of the 5th edition (IS-QZSS-PNT-005)
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Jul.31,2023The Test Transmission of signal authentication data has now started
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Jul.07,2023The Test Transmission of signal authentication data
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Feb.17,2023Update the User Interface Specification (IS-QZSS-L1S) for the SLAS
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Jan.24,2023Release of the user interface specification (draft version) for signal authentication service
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Oct.25,2022Update the interface specification of PNT service for 7-Satellites Constellation in advance
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Sep.30,2022Trial service of MADOCA-PPP has now started
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Sep.22,2022The Beginning of Trial Service of MADOCA-PPP (Switchover dates and related user interface specifications)
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Aug.01,2022The Test Transmission of MADOCA-PPP
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Apr.01,2022The GNSS Integrated Data Sharing System (MIRAI)
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Mar.25,2022Suspension of QZS-1 signal transmission
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Mar.24,2022Update the Performance Standard(PS-QZSS) for the start of QZS-1R services
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Mar.24,2022Start of QZS-1R Services
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Mar.22,2022Start of QZS-1R Services and Suspension of QZS-1 signal transmission
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Mar.18,2022Update the Performance Standard (PS-QZSS) for the start of QZS-1R services
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Mar.14,2022Start of QZS-1R Services and Suspension of QZS-1 signal transmission (Advance Notice)
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Feb.28,2022Release of Specifications for MADOCA-PPP
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Feb.28,2022Release of Service Performance Evaluation
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Jan.31,2022Start of QZS-1R test signals transmission
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Jan.26,2022Update the User Interface Specification (IS-QZSS-DCR) for the DC Report Service
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Nov.29,2021Release of Service Performance Evaluation
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Oct.26,2021Launch Result of the H-IIA Launch Vehicle No. 44 which carries aboard the QZS-1R
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Jul.14,2021Update of the compliant coordinate system and User Interface Specification for CLAS
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Apr.23,2021Reassignment of QZSS L5S PRN number completed and application of the IS-QZSS-TV-003 for the PTV started
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Apr.14,2021Reassignment of QZSS L5S PRN number and application of the IS-QZSS-TV-003 for the PTV
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Mar.09,2021Trial transmission of the navigation message authentication
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Feb.15,2021Complete the update of the PNT reference frame for alignment with ITRF2014
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Feb.01,2021Update the User Interface Specification (IS-QZSS-PNT-004) for the PNT
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Feb.01,2021Update the PNT reference frame for alignment with ITRF2014
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Jan.27,2021Release of Service Performance Evaluation
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Nov.17,2020Launch of the upgraded CLAS Service corresponding to 17 augmented satellites
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Jun.19,2020Start of Trial transmission of the Augmentation Information corresponding to IS-QZSS-L6-002 in CLAS
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Jul.29,2019Web URL Change notice for "Operational Information/Archive Data" due to shift from "http" to "https"(SSL)
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Nov.01,2018Start of QZSS Services
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Sep.07,2018Re-start of QZS test operation
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Jun.05,2018Anomaly of a QZS in Orbit
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Apr.03,2018Setting update of Centi-meter Level Augmentation Service (CLAS) Trial Service
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Mar.02,2018Starting Date of QZSS Services
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Jan.17,2018Commencement of QZS-3, QZS-4 Satellite Report for Disaster and Crisis Management (DC Report) trial service
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Jan.12,2018Start of QZS-4 Trial Service
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Dec.19,2017Start of QZS-3 Trial Service
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Nov.15,2017Start of Sub-meter Level Augmentation Service (SLAS) Trial Service using QZS-2
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Sep.27,2017Commencement of Satellite Report for Disaster and Crisis Management (DC Report) trial service
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Sep.27,2017Start of Centi-meter Level Augmentation Service (CLAS) Trial Services using QZS-1
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Sep.22,2017Change of Centi-meter Level Augmentation Service (CLAS) Trial Service
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Sep.15,2017Start of QZS-2 Trial Service
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Sep.14,2017Restart of Centi-meter Level Augmentation Service Trial Services
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Sep.04,2017Distribution stop of Centi-meter Level Augmentation Service Trial Services
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Mar.29,2017Start of Trial Services
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Feb.22,2017QZS-1 Control Will be Transferred to the Cabinet Office, Followed by an Adjustment Period Before the Trial Service Start