<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-02 -306 05:50:00.000"
URSICode="SAA0K"
StationName="SaoLuis"
GeoLatitude="-2.6"
GeoLongitude="315.8"
Source="Ionosonde"
SourceType="DPS-4"
ScalerType="auto">
<SystemInfo UMLStationID="903">
<FrequencyStepping StartFrequency="1.0" StopFrequency="14.0">
<LinearStepping Step="0.05" Units="MHz" />
</FrequencyStepping>
<RangeStepping StartRange="80.0" StopRange="1360.0" >
<LinearStepping Step="5.0" Units="km" />
</RangeStepping>
<AutoScaler Name="Artist5" Version="500200" ArtistFlags="2 2 0 0 0 0 0 0 0 22 1 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.44 Confidence: 70% PACIFIC flags: Moderate F-spread, F2o cusp not found, One of F2 cusps was derived from the other</Comments>
<ContactPerson>
<Name>Dr. Mangalathayil Ali Abdu</Name>
<Affiliation>INPE, Division of Aeronomy</Affiliation>
<Address>Av dos Astronautas, 1.758 Jd. Granja - CEP: 12227-010 Sao Jose dos Campos - SP Brasil</Address>
<Email>maabdu@dae.inpe.br</Email>
</ContactPerson>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.11.02 (306) 05:50:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.63" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-11.41" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-19.74" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="-1.0" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202630611020550009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="7.200" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.960" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="21.314" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="5.000" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="5.000" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="7.500" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="325.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="325.000" Name="h`F2" Units="km" QL="/" DL="/" />
<URSI ID="90" Val="110.000" Name="hmE" Units="km" QL="/" DL="/" />
<URSI ID="83" Val="20.000" Name="yE" Units="km" QL="/" DL="/" />
<URSI ID="86" Val="0.300" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="6.650" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="376.871" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Custom Name="dlt foF2" Val="0.000" Description="Adjustment to the scaled foF2 during profile inversion" Units="MHz" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="5.000" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="5.000" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="345.748" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="300.254" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.050" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="65.945" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="9.317" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="34.358" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="64.170" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.200" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="45">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
5.0 5.05 5.1 5.15 5.2 5.25 5.3 5.35 5.4 5.45 5.5 5.55 5.6 5.65 5.7 5.75 5.8 5.85 5.9 5.95 6.0 6.05 6.1 6.15 6.2 6.25 6.3 6.35 6.4 6.45 6.5 6.55 6.6 6.65 6.7 6.75 6.8 6.85 6.9 6.95 7.0 7.05 7.1 7.15 7.2
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
325.000 325.000 330.000 325.000 330.000 332.500 335.000 336.429 337.857 339.286 340.714 342.143 343.571 345.000 346.429 347.857 349.286 350.714 352.143 353.571 355.000 356.429 357.857 359.286 360.714 362.143 363.571 365.000 365.000 365.000 370.000 370.000 373.283 376.871 380.809 385.151 389.963 395.324 401.336 408.124 415.848 424.718 435.006 447.085 461.466
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
60 0 54 63 63 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 54 60 54 63 63 60 63 60 63 54 60 0 54 0 57 51 51 51
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
1.171875 1.171875 0.390625 1.171875 1.171875 0.390625 1.171875 1.171875 0.390625 1.953125 1.171875 1.171875 1.171875 1.171875 1.953125 0.390625 1.171875 1.171875 1.171875 1.171875 1.171875 0.390625 1.171875 0.390625 0.390625 -0.390625 1.171875 1.171875 1.171875 1.953125 1.953125 1.171875 1.953125 1.953125 1.953125 1.953125 1.953125 1.953125 1.953125 -1.171875 1.953125 1.953125 1.953125 1.953125 1.953125
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.33" Type="vertical" >
<Tabulated Num="145">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 95.0 100.0 105.0 110.0 115.0 120.0 125.0 130.0 135.0 140.0 145.0 145.453 150.0 155.0 160.0 165.0 170.0 175.0 180.0 180.906 185.0 190.0 195.0 200.0 205.0 210.0 215.0 216.359 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 345.748 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.234 0.307 0.343 0.354 0.352 0.344 0.332 0.313 0.288 0.253 0.205 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.218 0.24 0.261 0.283 0.305 0.326 0.348 0.354 0.417 0.523 0.652 0.805 0.981 1.183 1.411 1.668 1.954 2.27 2.616 2.99 3.387 3.801 4.227 4.653 5.07 5.47 5.842 6.179 6.475 6.725 6.924 7.071 7.163 7.199 7.2 7.19 7.152 7.09 7.006 6.902 6.782 6.649 6.503 6.347 6.184 6.015 5.842 5.665 5.487 5.308 5.129 4.952 4.776 4.603 4.433 4.267 4.104 3.945 3.79 3.639 3.493 3.352 3.215 3.083 2.955 2.832 2.713 2.599 2.488 2.383 2.281 2.183 2.089 1.999 1.913 1.83 1.75 1.674 1.601 1.531 1.464 1.4 1.338 1.28 1.223 1.17 1.118 1.069 1.022 0.977 0.933 0.892 0.853 0.815 0.779 0.744 0.711 0.68 0.65 0.621 0.593 0.567 0.542 0.518 0.495 0.473 0.452 0.432 0.413 0.394 0.377 0.36 0.344 0.329 0.314 0.3 0.287 0.274 0.262 0.25 0.239 0.229 0.218 0.209

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.354" PeakHeight="110.0" Num="3" Error="0.0">
-18.791 2.435 -0.142
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.354" EndFrequency="7.2" PeakHeight="345.748" Num="5" zHalfNm="300.254" Error="0.915">
-131.79 3.731 -1.973 1.059 -0.416
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="106.359" Depth="0.154"/>
<TopsideChapman PeakHeight="345.748" PeakDensity="643176.2" PeakScaleHeight="34.358" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
