<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-02 -306 12:30:00.000"
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: 45% PACIFIC flags: F2x cusp not found, Multiple candidates for F2o cusp, 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) 12:30:00</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">
FF202630611021230009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="10.200" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.884" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="29.420" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="9.100" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="9.100" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="10.500" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="390.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="390.000" 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="0.200" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="9.750" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="415.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="3.200" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="9.100" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="9.100" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.271" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="283.458" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="194.526" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.072" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="116.842" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="34.987" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="63.296" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="135.070" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.600" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="23">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 10.2
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
390.000 390.000 391.667 393.333 395.000 400.000 402.500 405.000 405.000 405.000 410.000 410.000 415.000 415.000 420.000 425.000 429.653 435.137 441.697 449.683 459.617 472.311 489.102
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 0 60 54 0 51 60 60 54 51 57 57 57 57 51 48 45 45 48 48 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
</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" >
89.513 90.0 95.0 100.0 105.0 110.0 112.343 114.686 115.0 117.029 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 283.458 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.239 2.152 2.769 3.096 3.2 3.078 3.078 3.094 3.2 3.347 3.576 3.801 4.03 4.27 4.522 4.788 5.065 5.349 5.637 5.923 6.203 6.475 6.738 6.991 7.235 7.471 7.698 7.919 8.132 8.34 8.542 8.739 8.93 9.117 9.297 9.47 9.636 9.79 9.929 10.047 10.137 10.189 10.2 10.199 10.19 10.168 10.136 10.093 10.04 9.979 9.909 9.831 9.746 9.654 9.556 9.452 9.343 9.23 9.113 8.992 8.867 8.74 8.611 8.479 8.346 8.211 8.075 7.939 7.801 7.664 7.526 7.389 7.252 7.115 6.979 6.844 6.71 6.577 6.445 6.314 6.185 6.057 5.931 5.807 5.684 5.563 5.443 5.326 5.21 5.096 4.984 4.874 4.765 4.659 4.554 4.452 4.351 4.253 4.156 4.061 3.968 3.876 3.787 3.699 3.614 3.53 3.447 3.367 3.288 3.211 3.136 3.062 2.99 2.919 2.85 2.782 2.716 2.652 2.589 2.527 2.467 2.408 2.351 2.294 2.239 2.186 2.133 2.082 2.032 1.983 1.936 1.889 1.844 1.799 1.756 1.713 1.672 1.632 1.592 1.554 1.516 1.479 1.444 1.409 1.375 1.341 1.309 1.277 1.246 1.216 1.186 1.158 1.13 1.102 1.075 1.049 1.024 0.999 0.975 0.951 0.928 0.905 0.883 0.862 0.841 0.82 0.8 0.781 0.762 0.743 0.725 0.708 0.69 0.674 0.657 0.641 0.626 0.61 0.595 0.581 0.567 0.553 0.54 0.526 0.514 0.501 0.489

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.2" PeakHeight="110.0" Num="3" Error="0.0">
-30.357 12.94 -3.07
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.2" EndFrequency="10.2" PeakHeight="283.458" Num="5" zHalfNm="194.526" Error="4.189">
-155.113 -19.505 12.807 -6.89 2.272
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="7.029" Depth="0.122"/>
<TopsideChapman PeakHeight="283.458" PeakDensity="1290818.9" PeakScaleHeight="63.296" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
