<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-03 -307 12:40:00.000"
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" >
2026.11.03 (307) 12:40:00</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">
FF202630711031240009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="10.250" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.841" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="29.119" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="9.000" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="9.000" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="10.550" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="380.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="380.000" 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="9.650" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="417.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="3.227" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="9.000" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="9.000" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.284" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="292.578" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="198.759" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.113" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="123.050" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="37.242" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="66.726" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="142.860" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.590" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="26">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
380.000 382.857 385.714 388.571 391.429 394.286 397.143 400.000 400.000 405.000 408.000 411.000 414.000 417.000 420.000 425.000 430.000 435.000 440.000 446.202 453.171 461.058 470.057 480.422 492.489 506.714
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
60 0 0 51 0 0 0 0 54 54 0 0 0 0 54 54 57 0 0 0 48 0 0 0 0 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 1.953125 -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" >
89.508 90.0 95.0 100.0 105.0 110.0 112.231 114.461 115.0 116.692 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 292.578 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.239 2.17 2.793 3.122 3.227 3.105 3.105 3.134 3.227 3.379 3.596 3.81 4.029 4.257 4.496 4.746 5.006 5.274 5.544 5.815 6.081 6.341 6.594 6.839 7.075 7.304 7.525 7.74 7.949 8.151 8.349 8.542 8.73 8.914 9.093 9.267 9.436 9.598 9.751 9.893 10.02 10.126 10.203 10.244 10.25 10.249 10.238 10.217 10.186 10.145 10.096 10.038 9.973 9.9 9.821 9.735 9.644 9.548 9.446 9.341 9.231 9.118 9.001 8.882 8.761 8.637 8.511 8.384 8.256 8.126 7.996 7.865 7.734 7.603 7.472 7.341 7.211 7.081 6.952 6.823 6.696 6.569 6.444 6.32 6.197 6.075 5.955 5.836 5.719 5.603 5.489 5.377 5.266 5.157 5.049 4.944 4.84 4.737 4.637 4.538 4.441 4.345 4.252 4.16 4.069 3.981 3.894 3.809 3.725 3.643 3.563 3.484 3.407 3.331 3.257 3.185 3.114 3.044 2.976 2.909 2.844 2.78 2.717 2.656 2.596 2.537 2.48 2.424 2.369 2.315 2.262 2.211 2.161 2.111 2.063 2.016 1.97 1.925 1.881 1.838 1.796 1.755 1.715 1.676 1.637 1.6 1.563 1.527 1.492 1.458 1.424 1.391 1.359 1.328 1.298 1.268 1.239 1.21 1.182 1.155 1.128 1.102 1.077 1.052 1.028 1.004 0.981 0.958 0.936 0.915 0.894 0.873 0.853 0.833 0.814 0.795 0.777 0.759 0.741 0.724 0.707 0.691 0.675 0.659 0.644 0.629 0.615

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.227" PeakHeight="110.0" Num="3" Error="0.0">
-30.379 12.971 -3.084
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.227" EndFrequency="10.25" PeakHeight="292.578" Num="5" zHalfNm="198.759" Error="3.753">
-163.456 -21.293 13.826 -7.226 2.263
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="6.692" Depth="0.122"/>
<TopsideChapman PeakHeight="292.578" PeakDensity="1303505.0" PeakScaleHeight="66.726" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
