Announcement of the signal switching for PNT service on QZS-1R
Regarding the signal switching of LNAV messages of the PNT service transmitted by QZS-1R, as announced on July 4, 2025, the work has been carried out from 9:02 JST on August 6 to 12:12 JST on August 10, 2025, and the signal has been switched from L1C/A to L1C/B and the PRN number assigned to the signal has been switched from 196 to 203 as scheduled.
Link
-
Aug.05,2025Update the User Interface Specification (IS-QZSS-L6) for CLAS
-
Jul.28,2025Regarding the Health "BAD" settings in PNT services
-
Jul.22,2025Validation of the CLAS service upgrade to increase the number of augmented satellites.
-
Jul.18,2025Start of QZS-6 Services
-
Jul.08,2025Start of the message distribution with improved number of augmented signals and satellites in MADOCA-PPP
-
Jul.25,2025Announcement of the signal switching for PNT service on QZS-1R (Partially revised on July 25, 2025)
-
Jul.02,2025Schedule for the start of the message distribution with improved number of augmented signals and satellites in MADOCA-PPP
-
Jul.01,2025Announcement of the operation mode switch for the PTV signal (L5S) on QZS-1R
-
Jun.25,2025L1C/B support of Multi-GNSS Integrated Real time and Archived Information system (MIRAI)
-
Jun.13,2025Update the User Interface Specification (IS-QZSS-L6) for CLAS and CLAS test library, CLASLIB, and the Test Transmission from QZS-3
-
Jun.10,2025Start of QZS-6 Services
-
Jun.02,2025Delay of the transition to the Health "BAD" status in PNT services
-
May.28,2025Plan for support of multi-frequency positioning in MADOCA-PPP and request for support of MADOCALIB v2.0
-
May.21,2025Preparation Status of QZS-6
-
May.08,2025Update the User Interface Specification for the SLAS and the DC Report Service
-
Apr.01,2025Update the User Interface Specification for the DC Report Service (Extended Information)
-
Feb.21,2025Scheduled Outage of SBAS signal in the SBAS Transmission Service
-
Feb.14,2025Release of CLAS test library, CLASLIB v0.8.0
-
Feb.05,2025Release of reference service performance evaluation of MADOCA-PPP Wide-area Ionospheric Correction Information
-
Jan.22,2025Update the User Interface Specification for CLAS
-
Dec.05,2024Update the User Interface Specification (IS-QZSS-DCX) for the DC Report Service (Extended Information)
-
Dec.02,2024Release of MADOCA-PPP test library, MADOCALIB v1.4
-
Dec.02,2024Update of the coverage areas of ionospheric correction data for the Internet distribution of MADOCA-PPP
-
Oct.23,2024Scheduled Outage of SBAS signal in the SBAS Transmission Service
-
Oct.22,2024Update of Performance Standard (PS-QZSS)
-
Sep.18,2024Scheduled Outage of SBAS signal in the SBAS Transmission Service
-
Sep.13,2024Release of MADOCA-PPP test library, MADOCALIB v1.3
-
Sep.13,2024Update the User Interface Specification (IS-QZSS-SAS) for QZNMA
-
Sep.03,2024Update the User Interface Specification (IS-QZSS-MDC) for MADOCA-PPP
-
Jul.12,2024Update the User Interface Specification (IS-QZSS-PNT-006) for the PNT
-
Jul.01,2024Start of the Internet distribution of MADOCA-PPP and release of MADOCALIB v1.2
-
Jun.19,2024Internet distribution of MADOCA-PPP
-
Jun.03,2024Update the User Interface Specification (IS-QZSS-DCR) for the DC Report Service
-
Apr.01,2024Operational service of MADOCA-PPP has now started
-
Apr.01,2024Start of DCX and adoption of Common Alert Message Format
-
Apr.01,2024Start of signal authentication service
-
Feb.22,2024The Test Transmission of signal authentication data (notice of close)
-
Jan.10,2024The Test Transmission of signal authentication data
-
Dec.28,2023Update the User Interface Specification (IS-QZSS-TV) for the PTV
-
Dec.21,2023The change of transmission pattern for navigation messages in PNT services
-
Dec.18,2023Schedule for changes in the transmission patterns of navigation messages for PNT services
-
Dec.15,2023The Test Transmission of signal authentication data (notice of suspension)
-
Dec.07,2023Upcoming Schedule for the Launch of Satellite Report for Disaster and Crisis Management (Extended Information)
-
Nov.30,2023Update the User Interface Specification (IS-QZSS-MDC) for MADOCA-PPP
-
Nov.10,2023Start of the application of the interface specification for PNT service of the 5th edition (IS-QZSS-PNT-005)
-
Nov.09,2023Implementation of the application work for the interface specification for PNT service of the 5th edition
-
Oct.31,2023Update the User Interface Specification (IS-QZSS-DCR) for the DC Report Service
-
Oct.25,2023Update the User Interface Specification (IS-QZSS-L1S) for the SLAS
-
Sep.15,2023Suspension of QZS-1 all operations
-
Sep.01,2023NAQU notification for MADOCA-PPP
-
Aug.23,2023Application of the interface specification for PNT service of the 5th edition (IS-QZSS-PNT-005)
-
Jul.31,2023The Test Transmission of signal authentication data has now started
-
Jul.07,2023The Test Transmission of signal authentication data
-
Feb.17,2023Update the User Interface Specification (IS-QZSS-L1S) for the SLAS
-
Jan.24,2023Release of the user interface specification (draft version) for signal authentication service
-
Oct.25,2022Update the interface specification of PNT service for 7-Satellites Constellation in advance
-
Sep.30,2022Trial service of MADOCA-PPP has now started
-
Sep.22,2022The Beginning of Trial Service of MADOCA-PPP (Switchover dates and related user interface specifications)
-
Aug.01,2022The Test Transmission of MADOCA-PPP
-
Apr.01,2022The GNSS Integrated Data Sharing System (MIRAI)
-
Mar.25,2022Suspension of QZS-1 signal transmission
-
Mar.24,2022Update the Performance Standard(PS-QZSS) for the start of QZS-1R services
-
Mar.24,2022Start of QZS-1R Services
-
Mar.22,2022Start of QZS-1R Services and Suspension of QZS-1 signal transmission
-
Mar.18,2022Update the Performance Standard (PS-QZSS) for the start of QZS-1R services
-
Mar.14,2022Start of QZS-1R Services and Suspension of QZS-1 signal transmission (Advance Notice)
-
Feb.28,2022Release of Specifications for MADOCA-PPP
-
Feb.28,2022Release of Service Performance Evaluation
-
Jan.31,2022Start of QZS-1R test signals transmission
-
Jan.26,2022Update the User Interface Specification (IS-QZSS-DCR) for the DC Report Service
-
Nov.29,2021Release of Service Performance Evaluation
-
Oct.26,2021Launch Result of the H-IIA Launch Vehicle No. 44 which carries aboard the QZS-1R
-
Jul.14,2021Update of the compliant coordinate system and User Interface Specification for CLAS
-
Apr.23,2021Reassignment of QZSS L5S PRN number completed and application of the IS-QZSS-TV-003 for the PTV started
-
Apr.14,2021Reassignment of QZSS L5S PRN number and application of the IS-QZSS-TV-003 for the PTV
-
Mar.09,2021Trial transmission of the navigation message authentication
-
Feb.15,2021Complete the update of the PNT reference frame for alignment with ITRF2014
-
Feb.01,2021Update the User Interface Specification (IS-QZSS-PNT-004) for the PNT
-
Feb.01,2021Update the PNT reference frame for alignment with ITRF2014
-
Jan.27,2021Release of Service Performance Evaluation
-
Nov.17,2020Launch of the upgraded CLAS Service corresponding to 17 augmented satellites
-
Jun.19,2020Start of Trial transmission of the Augmentation Information corresponding to IS-QZSS-L6-002 in CLAS
-
Jul.29,2019Web URL Change notice for "Operational Information/Archive Data" due to shift from "http" to "https"(SSL)
-
Nov.01,2018Start of QZSS Services
-
Sep.07,2018Re-start of QZS test operation
-
Jun.05,2018Anomaly of a QZS in Orbit
-
Apr.03,2018Setting update of Centi-meter Level Augmentation Service (CLAS) Trial Service
-
Mar.02,2018Starting Date of QZSS Services
-
Jan.17,2018Commencement of QZS-3, QZS-4 Satellite Report for Disaster and Crisis Management (DC Report) trial service
-
Jan.12,2018Start of QZS-4 Trial Service
-
Dec.19,2017Start of QZS-3 Trial Service
-
Nov.15,2017Start of Sub-meter Level Augmentation Service (SLAS) Trial Service using QZS-2
-
Sep.27,2017Commencement of Satellite Report for Disaster and Crisis Management (DC Report) trial service
-
Sep.27,2017Start of Centi-meter Level Augmentation Service (CLAS) Trial Services using QZS-1
-
Sep.22,2017Change of Centi-meter Level Augmentation Service (CLAS) Trial Service
-
Sep.15,2017Start of QZS-2 Trial Service
-
Sep.14,2017Restart of Centi-meter Level Augmentation Service Trial Services
-
Sep.04,2017Distribution stop of Centi-meter Level Augmentation Service Trial Services
-
Mar.29,2017Start of Trial Services
-
Feb.22,2017QZS-1 Control Will be Transferred to the Cabinet Office, Followed by an Adjustment Period Before the Trial Service Start