DATATYPE_NAV_MODEL_PREDICTIONS_GPS payload

Payload in XML format

If you have requested DATATYPE_NAV_MODEL_PREDICTIONS_GPS data from HERE GNSS API, you get a response where Message.data.data_type is DATATYPE_NAV_MODEL_PREDICTIONS_GPS and the predictions are in Message.data.payload.

The payload contains 168 A-GNSS-ProvideAssistanceData elements. Each of the elements contains predicted navigation models for GPS satellites for consecutive two-hour periods. Together, they provide navigations models for 14 days.

The XML in the example has been created by first decoding the LPP data in payload and then encoding it to XML format. Data is shown only for the first two satellites.

<A-GNSS-ProvideAssistanceData>
    <gnss-CommonAssistData>
        <gnss-ReferenceTime>
            <gnss-SystemTime>
                <gnss-TimeID>
                    <gnss-id><gps/></gnss-id>
                </gnss-TimeID>
                <gnss-DayNumber>15040</gnss-DayNumber>
                <gnss-TimeOfDay>79200</gnss-TimeOfDay>
            </gnss-SystemTime>
        </gnss-ReferenceTime>
    </gnss-CommonAssistData>
    <gnss-GenericAssistData>
        <GNSS-GenericAssistDataElement>
            <gnss-ID>
                <gnss-id><gps/></gnss-id>
            </gnss-ID>
            <gnss-NavigationModel>
                <nonBroadcastIndFlag>1</nonBroadcastIndFlag>
                <gnss-SatelliteList>
                    <GNSS-NavModelSatelliteElement>
                        <svID>
                            <satellite-id>0</satellite-id>
                        </svID>
                        <svHealth>
                            00000000
                        </svHealth>
                        <iod>
                            00000010111
                        </iod>
                        <gnss-ClockModel>
                            <nav-ClockModel>
                                <navToc>26550</navToc>
                                <navaf2>0</navaf2>
                                <navaf1>-76</navaf1>
                                <navaf0>1596452</navaf0>
                                <navTgd>10</navTgd>
                            </nav-ClockModel>
                        </gnss-ClockModel>
                        <gnss-OrbitModel>
                            <nav-KeplerianSet>
                                <navURA>0</navURA>
                                <navFitFlag>0</navFitFlag>
                                <navToe>26550</navToe>
                                <navOmega>561852314</navOmega>
                                <navDeltaN>12220</navDeltaN>
                                <navM0>289673343</navM0>
                                <navOmegaADot>-23392</navOmegaADot>
                                <navE>90244017</navE>
                                <navIDot>378</navIDot>
                                <navAPowerHalf>2702015379</navAPowerHalf>
                                <navI0>672177246</navI0>
                                <navOmegaA0>-1409151274</navOmegaA0>
                                <navCrs>2436</navCrs>
                                <navCis>73</navCis>
                                <navCus>1788</navCus>
                                <navCrc>10374</navCrc>
                                <navCic>-14</navCic>
                                <navCuc>2238</navCuc>
                            </nav-KeplerianSet>
                        </gnss-OrbitModel>
                    </GNSS-NavModelSatelliteElement>

                    ...

                    <GNSS-NavModelSatelliteElement>
                        <svID>
                            <satellite-id>31</satellite-id>
                        </svID>
                        <svHealth>
                            00000000
                        </svHealth>
                        <iod>
                            00000010111
                        </iod>
                        <gnss-ClockModel>
                            <nav-ClockModel>
                                <navToc>26550</navToc>
                                <navaf2>0</navaf2>
                                <navaf1>7</navaf1>
                                <navaf0>45053</navaf0>
                                <navTgd>1</navTgd>
                            </nav-ClockModel>
                        </gnss-ClockModel>
                        <gnss-OrbitModel>
                            <nav-KeplerianSet>
                                <navURA>0</navURA>
                                <navFitFlag>0</navFitFlag>
                                <navToe>26550</navToe>
                                <navOmega>-1652027987</navOmega>
                                <navDeltaN>11422</navDeltaN>
                                <navM0>-2007777365</navM0>
                                <navOmegaADot>-21441</navOmegaADot>
                                <navE>40428810</navE>
                                <navIDot>695</navIDot>
                                <navAPowerHalf>2701999488</navAPowerHalf>
                                <navI0>654677695</navI0>
                                <navOmegaA0>11560719</navOmegaA0>
                                <navCrs>-1412</navCrs>
                                <navCis>-14</navCis>
                                <navCus>6710</navCus>
                                <navCrc>4396</navCrc>
                                <navCic>-9</navCic>
                                <navCuc>-1188</navCuc>
                            </nav-KeplerianSet>
                        </gnss-OrbitModel>
                    </GNSS-NavModelSatelliteElement>
                </gnss-SatelliteList>
            </gnss-NavigationModel>
        </GNSS-GenericAssistDataElement>
    </gnss-GenericAssistData>
</A-GNSS-ProvideAssistanceData>
<A-GNSS-ProvideAssistanceData>
    <gnss-CommonAssistData>
        <gnss-ReferenceTime>
            <gnss-SystemTime>
                <gnss-TimeID>
                    <gnss-id><gps/></gnss-id>
                </gnss-TimeID>
                <gnss-DayNumber>15041</gnss-DayNumber>
                <gnss-TimeOfDay>0</gnss-TimeOfDay>

                ...

</A-GNSS-ProvideAssistanceData>
<A-GNSS-ProvideAssistanceData>
    <gnss-CommonAssistData>
        <gnss-ReferenceTime>
            <gnss-SystemTime>
                <gnss-TimeID>
                    <gnss-id><gps/></gnss-id>
                </gnss-TimeID>
                <gnss-DayNumber>15041</gnss-DayNumber>
                <gnss-TimeOfDay>7200</gnss-TimeOfDay>

                ...

</A-GNSS-ProvideAssistanceData>
<A-GNSS-ProvideAssistanceData>
    <gnss-CommonAssistData>
        <gnss-ReferenceTime>
            <gnss-SystemTime>
                <gnss-TimeID>
                    <gnss-id><gps/></gnss-id>
                </gnss-TimeID>
                <gnss-DayNumber>15054</gnss-DayNumber>
                <gnss-TimeOfDay>72000</gnss-TimeOfDay>

                ...

</A-GNSS-ProvideAssistanceData>

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