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Constellation Information

Update： 2025/01/21

Message

　
  •  :In Operation
  •  :Retired
  •  :Outage
  •  :In commissioning
  •  :Maintenance
  •  :In testing
  •  :Time problem

QZS

Services Positioning Signals PRN Operation NAQU Number
QZS02 (SVN=002, Block type=IIQ)
PNT L1C/A, L1C, L2C, L5 194 O
SLAS L1S 184 O
PTV L5S 184 O
CLAS L6 194 O
QZS03 (SVN=003, Block type=IIG)
PNT L1C/A, L1C, L2C, L5 199 O
SLAS L1S 189 O
PTV L5S 189 O
PTV L1Sb 137(*1) O
CLAS L6 199 O
Q-ANPI Sr/Sf - O
QZS04 (SVN=004, Block type=IIQ)
PNT L1C/A, L1C, L2C, L5 195 O
SLAS L1S 185 O
PTV L5S 185 O
CLAS L6 195 O
QZS1R (SVN=005, Block type=IIA-Q)
PNT L1C/A, L1C, L2C, L5 196 O
SLAS L1S 186 O
PTV L5S 186 O
CLAS L6 196 O
QZS01 (SVN=001, Block type=IQ)
PNT L1C/A, L1C, L2C, L5 193 X 2023134
SLAS L1S 183 X 2023134
CLAS L6 193 X 2023134

*1: L1Sb operation status in this table is not described the signal contents availability. MLIT(Ministry of Land, Infrastructure, Transport and Tourism) produces the augmentation signal contents. In the case used for flight operation, User should refer to NOTAM or inquire at MLIT for information about SBAS signal contents availability.

All NAQUs including outage of service, reports of anomaly, forecast of events, etc. can be confirmed on NAQU information.

  • Check NAQU information
  • Future operational events can be confirmed here.

    • ※The information of Future operational events are updated on plans until three months ahead at the end of every month, basically.

    Current effective NAQUs that indicate the notice of outage of service, forecast of events, etc. are displayed below.

    INFORMATION NAQUs

    NUMBER NAQU DETAIL
    2023134 NOTICE ADVISORY TO QZSS USERS (NAQU) 2023134 NAQU TYPE: ALL_GENERAL
    *** GENERAL MESSAGE TO ALL QZSS USERS ***
    The operation of QZS-1(SVN001) was completely terminated on September 15, 2023 after re-orbiting.
    *** GENERAL MESSAGE TO ALL QZSS USERS ***

    POC:- QZSS Services, HTTPS://QZSS.GO.JP/

    EFFECTIVE PNT NAQUs

    NUMBER NAQU DETAIL
    2025021 NOTICE ADVISORY TO QZSS USERS (NAQU) 2025021
    SUBJ: SVN005 (PRN196) FORECAST OUTAGE JDAY 027/1059 - JDAY 030/1059
    1. NAQU TYPE: PNT_FCSTDV
    NAQU NUMBER: 2025021
    NAQU DTG: 211007Z JAN 2025
    REFERENCE NAQU: N/A
    REF NAQU DTG: N/A
    SVN: 005
    PRN: 196
    START JDAY: 027
    START TIME ZULU: 1059
    START CALENDAR DATE: 27 JAN 2025
    STOP JDAY: 030
    STOP TIME ZULU: 1059
    STOP CALENDAR DATE: 30 JAN 2025

    2. CONDITION: QZSS SATELLITE SVN005 (PRN196) WILL BE UNUSABLE ON JDAY 027
    (27 JAN 2025) BEGINNING 1059 ZULU UNTIL JDAY 030 (30 JAN 2025)
    ENDING 1059 ZULU.

    3. POC: - QZSS Services, HTTPS://QZSS.GO.JP/