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NAQU Message

NAQU is an abbreviation of "NOTICE ADVISORY TO QZSS USERS".

It is the QZSS version of the NANU(NOTICE ADVISORY TO NAVSTAR USERS) which the US Coast Guard Navigation Center gives out for information on GPS.

NAQUs are announced from the MCS to the users to give information of the QZSS status. They include: outage of service, reports of anomaly, forecast of events, etc.

Users will get NAQU messages to read in this web page or to follow the Twitter account: "@QZSS_Status".

  • Details of NAQU format
  • The cell color of the list means below.

    Forecast Outages

    Unscheduled Outages

    Other

    NAQU Message 2017

    DATE PNT SLAS DC Report L1Sb PTV CLAS PRS Q-ANPI
    L1C/A L1C L2C L5 L1S L1Sb L5S L6 L6R Sr/Sf
    2017/02/28
    2017/03/28
    2017/04/02
    2017/04/02
    2017/04/04
    2017/04/05
    2017/04/05
    2017/04/10
    2017/05/31
    2017/06/01
    2017/06/02
    2017/06/06
    2017/06/08
    2017/06/08
    2017/06/11
    2017/06/13
    2017/06/21
    2017/06/23
    2017/06/23
    2017/06/23
    2017/06/23
    2017/06/30
    2017/06/30
    2017/07/02
    2017/07/04
    2017/07/04
    2017/07/04
    2017/07/04
    2017/07/04
    2017/07/04
    2017/07/05
    2017/07/05
    2017/07/05
    2017/07/05
    2017/07/05
    2017/07/05
    2017/07/05
    2017/07/05
    2017/07/05
    2017/07/06
    2017/07/07
    2017/07/07
    2017/07/07
    2017/07/10
    2017/07/11
    2017/07/11
    2017/07/13
    2017/07/14
    2017/07/19
    2017/07/19
    2017/07/19
    2017/07/19
    2017/08/09
    2017/08/09
    2017/08/09
    2017/08/09
    2017/08/09
    2017/08/09
    2017/08/09
    2017/08/09
    2017/08/19
    2017/08/20
    2017/08/20
    2017/08/20
    2017/08/20
    2017/08/20
    2017/08/20
    2017/09/07
    2017/09/07
    2017/09/13
    2017/09/13
    2017/09/15
    2017/09/15
    2017/09/15
    2017/09/19
    2017/09/19
    2017/09/19
    2017/09/19
    2017/09/19
    2017/09/20
    2017/09/24
    2017/09/24
    2017/09/25

    * PNT = Satellite Positioning, Navigation and Timing Service, SLAS = Sub-meter Level Augmentation Service,
    DC Report = Satellite Report for Disaster and Crisis Management, L1Sb = SBAS Transmission Service,
    PTV = Positioning Technology Verification Service, CLAS = Centimeter Level Augmentation Service,
    PRS = Public Regulated Service, Q-ANPI = QZSS Safety Confirmation Service