asterix 065 "SDPS Service Status Reports"
edition 1.6
date 2023-03-21
preamble
    Surveillance data exchange.

items

    000 "Message Type"
        definition
            This Data Item allows for a more convenient handling of the
            messages at the receiver side by further defining the type of
            transaction.
        element 8
            table
                1: SDPS Status
                2: End of Batch
                3: Service Status Report
        remark
            Notes:
                - In application where transactions of various types are exchanged, the
                  Message Type Data Item facilitates the proper message handling at the
                  receiver side.

    010 "Data Source Identifier"
        definition
            Identification of the system sending the data.
        group
            SAC "System Area Code"
                element 8
                    raw
            SIC "System Identification Code"
                element 8
                    raw
        remark
            Note:
                - The up-to-date list of SACs is published on the
                  EUROCONTROL Web Site (http://www.eurocontrol.int/asterix).

    015 "Service Identification"
        definition
            Identification of the service provided to one or more users.
        element 8
            raw
        remark
            Note:
                - The service identification is allocated by the SDPS.

    020 "Batch Number"
        definition
            A number indicating the completion of a service for that batch of track
            data, from 0 to N-1, N being the number of batches used to make
            one complete processing cycle.
        element 8
            unsigned integer

    030 "Time of Message"
        definition
            Absolute time stamping of the message, in the form of elapsed time
            since last midnight, expressed as UTC.
        element 24
            unsigned quantity 1/2^7 "s"
        remark
            Note:
                - The time is reset to zero at every midnight.

    040 "SDPS Configuration and Status"
        definition
            Status of an SDPS.
        group
            NOGO ""
                element 2
                    table
                        0: Operational
                        1: Degraded
                        2: Not currently connected
                        3: Unknown
            OVL ""
                element 1
                    table
                        0: Default
                        1: Overload
            TSV ""
                element 1
                    table
                        0: Default
                        1: Invalid Time Source
            PSS "Processing System Status"
                element 2
                    table
                        0: Not applicable
                        1: SDPS-1 selected
                        2: SDPS-2 selected
                        3: SDPS-3 selected
            STTN "Track Re-numbering Indication"
                element 1
                    raw
                remark
                    The STTN bit indicates when track numbering has been restarted. The STTN bit
                    is a toggle bit that changes its value whenever the SDPS system starts re-numbering
                    its tracks. Re-numbering of the track takes place either after SDPS start-up (cold or hot
                    start-up) or when a configuration set has been changed (please note that the latter
                    case is ARTAS specific behaviour and may be different in another SDPS).
            spare 1

    050 "Service Status Report"
        definition
            Report sent by the SDPS related to a service
        element 8
            table
                1: Service degradation
                2: Service degradation ended
                3: Main radar out of service
                4: Service interrupted by the operator
                5: Service interrupted due to contingency
                6: Ready for service restart after contingency
                7: Service ended by the operator
                8: Failure of user main radar
                9: Service restarted by the operator
                10: Main radar becoming operational
                11: Main radar becoming degraded
                12: Service continuity interrupted due to disconnection with adjacent unit
                13: Service continuity restarted
                14: Service synchronised on backup radar
                15: Service synchronised on main radar
                16: Main and backup radar, if any, failed

    RE "Reserved Expansion Field"
        definition
            Expansion
        explicit re

    SP "Special Purpose Field"
        definition
            Special Purpose Field
        explicit sp

uap
    010
    000
    015
    030
    020
    040
    050
    -
    -
    -
    -
    -
    RE
    SP