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Update the User Interface Specification (IS-QZSS-TV) for the PTV
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The Test Transmission of signal authentication data (notice of suspension)
The change of transmission pattern for navigation messages in PNT services
We would like to inform you that the change of transmission pattern for navigation messages for L1C/A, L1C, and L5 signals has been completed on December 21, 2023 for the test transmission of QZSS signal authentication data scheduled in January 2024.
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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 Satellite Report for Disaster and Crisis Management (Extended Information) 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 (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.15,2023
The Test Transmission of signal authentication data (notice of suspension)
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Dec.18,2023Schedule for changes in the transmission patterns of navigation messages for PNT services
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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 (IS-QZSS-PNT-005) (added on November 9)
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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 User Interface Specification (IS-QZSS-TV-003) for the PTV started
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Apr.14,2021Reassignment of QZSS L5S PRN number and application of the User Interface Specification (IS-QZSS-TV-003) for the PTV
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Mar.09,2021Trial 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 Centi-meter Level Augmentation Service (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