<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-02 -306 12:20:00.000"
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 44 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.44 Confidence: 50% PACIFIC flags: F2x cusp not found, One of F2 cusps was derived from the other, Unidentified traces above foF2</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) 12:20:00</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">
FF202630611021220009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="10.150" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.813" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="28.555" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="8.850" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="8.850" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="10.450" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="395.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="395.000" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="9.600" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="425.000" 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="3.170" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="8.850" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="8.850" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.257" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="306.752" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="205.101" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.035" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="136.249" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="40.430" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="74.407" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="151.540" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.780" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="27">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
8.85 8.9 8.95 9.0 9.05 9.1 9.15 9.2 9.25 9.3 9.35 9.4 9.45 9.5 9.55 9.6 9.65 9.7 9.75 9.8 9.85 9.9 9.95 10.0 10.05 10.1 10.15
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
395.000 395.000 397.500 400.000 400.000 405.000 405.000 405.000 410.000 410.000 415.000 415.000 420.000 420.000 425.000 425.000 435.000 440.000 445.000 450.000 455.000 465.000 475.000 490.726 512.447 544.397 596.029
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 60 63 0 0 66 60 63 57 60 57 57 60 63 63 0 54 57 51 51 48 51 48 45 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 1.171875 -0.390625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.33" Type="vertical" >
<Tabulated Num="188">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
89.518 90.0 95.0 100.0 105.0 110.0 112.472 114.943 115.0 117.415 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 306.752 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.238 2.132 2.744 3.067 3.17 3.048 3.048 3.051 3.17 3.273 3.473 3.676 3.885 4.1 4.323 4.552 4.788 5.028 5.272 5.517 5.762 6.005 6.247 6.484 6.718 6.948 7.173 7.393 7.608 7.818 8.023 8.223 8.418 8.607 8.79 8.966 9.136 9.297 9.449 9.591 9.721 9.838 9.939 10.022 10.086 10.129 10.149 10.15 10.148 10.138 10.12 10.093 10.06 10.019 9.971 9.917 9.857 9.791 9.72 9.644 9.563 9.478 9.39 9.297 9.202 9.103 9.001 8.898 8.792 8.684 8.574 8.463 8.35 8.237 8.122 8.007 7.891 7.775 7.659 7.542 7.426 7.31 7.194 7.078 6.963 6.848 6.734 6.621 6.509 6.397 6.287 6.177 6.069 5.962 5.855 5.75 5.647 5.544 5.443 5.343 5.244 5.147 5.051 4.956 4.863 4.771 4.68 4.591 4.503 4.416 4.331 4.248 4.165 4.084 4.005 3.926 3.849 3.774 3.699 3.626 3.555 3.484 3.415 3.347 3.28 3.215 3.15 3.087 3.025 2.964 2.905 2.846 2.789 2.732 2.677 2.623 2.57 2.518 2.466 2.416 2.367 2.319 2.272 2.225 2.18 2.135 2.092 2.049 2.007 1.966 1.926 1.886 1.847 1.809 1.772 1.736 1.7 1.665 1.631 1.597 1.564 1.532 1.501 1.47 1.439 1.41 1.381 1.352 1.324 1.297 1.27 1.244 1.218 1.193 1.168 1.144 1.12 1.097 1.074 1.052 1.03 1.009 0.988 0.968 0.948 0.928 0.909

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.17" PeakHeight="110.0" Num="3" Error="0.0">
-30.334 12.906 -3.054
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.17" EndFrequency="10.15" PeakHeight="306.752" Num="5" zHalfNm="205.101" Error="2.066">
-182.462 -11.679 7.435 -3.619 0.988
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="7.415" Depth="0.122"/>
<TopsideChapman PeakHeight="306.752" PeakDensity="1278194.8" PeakScaleHeight="74.407" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
