<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-02 -306 20:00:00.000"
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) 20:00:00</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">
FF202630611022000009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="11.550" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.416" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="27.904" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="8.950" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="8.950" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.900" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="445.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="445.000" 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="0.150" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="10.750" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="530.000" 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="1.954" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="8.950" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="8.950" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="400.069" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="290.337" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.579" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="153.361" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="56.746" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="79.588" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="166.460" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.650" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="53">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 10.2 10.25 10.3 10.35 10.4 10.45 10.5 10.55 10.6 10.65 10.7 10.75 10.8 10.85 10.9 10.95 11.0 11.05 11.1 11.15 11.2 11.25 11.3 11.35 11.4 11.45 11.5 11.55
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
445.000 445.000 447.500 450.000 450.000 450.000 455.000 455.000 455.000 460.000 460.000 462.000 464.000 466.000 468.000 470.000 475.000 477.500 480.000 485.000 487.500 490.000 490.000 490.000 495.000 497.500 500.000 500.000 505.000 510.000 510.000 515.000 515.000 520.000 525.000 530.000 530.000 540.000 540.000 545.000 550.000 555.000 560.000 570.000 575.000 580.000 590.000 595.000 604.388 615.644 629.388 646.546 668.573
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 0 0 63 57 0 0 60 63 0 0 0 0 0 0 0 0 0 0 0 60 54 60 0 0 51 0 57 0 63 54 60 60 60 57 54 60 60 57 54 51 51 51 48 51 48 48 48 48 45 42
</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 1.953125 -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 -1.171875 -0.390625 -1.171875 -0.390625 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -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" >
89.774 90.0 95.0 100.0 105.0 110.0 115.0 118.467 120.0 125.0 126.933 130.0 135.0 135.4 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 400.069 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.219 1.309 1.692 1.891 1.954 1.908 1.821 1.821 1.821 1.821 1.869 1.948 1.954 2.086 2.227 2.368 2.513 2.663 2.82 2.985 3.158 3.34 3.531 3.731 3.939 4.155 4.376 4.602 4.831 5.061 5.293 5.524 5.754 5.983 6.209 6.434 6.657 6.877 7.095 7.311 7.525 7.736 7.946 8.153 8.359 8.562 8.764 8.964 9.162 9.358 9.551 9.742 9.93 10.114 10.294 10.47 10.639 10.801 10.954 11.095 11.223 11.334 11.425 11.493 11.535 11.55 11.55 11.546 11.533 11.512 11.483 11.447 11.403 11.353 11.296 11.234 11.165 11.092 11.013 10.929 10.842 10.75 10.654 10.555 10.452 10.347 10.239 10.128 10.016 9.901 9.785 9.667 9.547 9.427 9.306 9.184 9.061 8.937 8.814 8.69 8.566 8.442 8.319 8.195 8.072 7.95 7.828 7.706 7.585 7.466 7.347 7.228 7.111 6.995 6.88 6.766 6.653 6.542 6.431 6.322 6.214 6.107 6.002 5.898 5.795 5.693 5.593 5.495 5.397 5.301 5.207 5.113 5.022 4.931 4.842 4.754 4.668 4.583 4.499 4.416 4.335 4.255 4.177 4.1 4.024 3.949 3.876 3.804 3.733 3.663 3.594 3.527 3.461 3.396 3.332 3.269 3.207 3.147 3.087 3.029 2.971 2.915 2.86 2.805 2.752 2.7 2.648 2.598 2.548 2.499 2.452 2.405 2.359 2.314 2.269 2.226 2.183 2.141 2.1 2.06 2.02 1.981 1.943 1.906 1.869 1.833 1.798

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="1.954" PeakHeight="110.0" Num="3" Error="0.0">
-28.996 11.02 -2.25
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="1.954" EndFrequency="11.55" PeakHeight="400.069" Num="5" zHalfNm="290.337" Error="3.66">
-248.781 -27.654 18.518 -9.865 3.113
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="25.4" Depth="0.133"/>
<TopsideChapman PeakHeight="400.069" PeakDensity="1655117.9" PeakScaleHeight="79.588" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
