<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-03 -307 14:50:00.000"
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 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" >
2026.11.03 (307) 14:50:00</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">
FF202630711031450009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="11.450" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.760" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="31.603" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="8.550" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="8.550" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.750" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="365.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="365.000" 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="10.700" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="430.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="3.381" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="8.550" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="8.550" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.356" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="316.463" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="217.935" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.844" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="127.691" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="48.884" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="69.440" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="158.850" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.360" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="59">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
8.55 8.6 8.65 8.7 8.75 8.8 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 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
365.000 365.000 365.000 367.500 370.000 372.500 375.000 376.667 378.333 380.000 380.625 381.250 381.875 382.500 383.125 383.750 384.375 385.000 385.000 385.000 386.250 387.500 388.750 390.000 391.667 393.333 395.000 400.000 400.000 405.000 405.000 405.000 407.500 410.000 412.500 415.000 415.000 415.000 415.000 420.000 425.000 425.000 430.000 430.000 435.000 440.000 445.000 450.000 450.000 457.500 465.000 472.500 480.000 485.000 496.667 508.333 520.000 527.500 540.113
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 0 0 0 0 0 0 54 0 0 0 0 0 0 0 0 66 0 0 0 0 69 0 0 0 57 63 57 0 57 0 54 0 57 51 54 51 57 51 48 51 51 51 0 54 0 0 0 0 0 45 45 45 0 45 0 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 2.734375 -0.390625 -0.390625 -0.390625 -1.171875 -0.390625 -0.390625 -0.390625 1.953125 -1.171875 -1.171875 -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 -1.953125 -0.390625 -0.390625 -1.171875 -1.171875 -1.171875 1.953125 -0.390625 -1.171875 -0.390625 -1.171875 -0.390625 -1.171875 -1.171875 0.390625 1.953125 1.953125 1.953125 -1.171875 -0.390625 -1.171875 -1.171875 -0.390625 1.171875 -1.171875 -1.171875 -1.171875
</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" >
89.484 90.0 95.0 100.0 105.0 110.0 111.59 113.181 114.771 115.0 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 316.463 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.241 2.275 2.926 3.271 3.381 3.258 3.258 3.381 3.39 3.584 3.793 4.015 4.249 4.493 4.742 4.994 5.247 5.497 5.744 5.987 6.225 6.458 6.686 6.911 7.131 7.347 7.559 7.769 7.976 8.181 8.383 8.584 8.783 8.98 9.176 9.372 9.566 9.759 9.952 10.142 10.331 10.518 10.7 10.875 11.041 11.19 11.315 11.405 11.448 11.45 11.447 11.434 11.409 11.375 11.331 11.278 11.216 11.146 11.069 10.985 10.894 10.798 10.695 10.588 10.476 10.36 10.24 10.117 9.99 9.861 9.729 9.596 9.46 9.323 9.185 9.046 8.906 8.766 8.625 8.484 8.343 8.203 8.063 7.923 7.785 7.647 7.51 7.374 7.239 7.105 6.972 6.841 6.712 6.584 6.457 6.332 6.208 6.087 5.966 5.848 5.731 5.616 5.503 5.392 5.282 5.174 5.068 4.964 4.862 4.761 4.662 4.565 4.469 4.376 4.284 4.193 4.105 4.018 3.932 3.849 3.767 3.686 3.607 3.53 3.454 3.38 3.307 3.236 3.166 3.098 3.03 2.965 2.9 2.837 2.776 2.715 2.656 2.598 2.541 2.486 2.431 2.378 2.326 2.275 2.225 2.176 2.129 2.082 2.036 1.991 1.948 1.905 1.863 1.822 1.781 1.742 1.704 1.666 1.629 1.593 1.558 1.524 1.49 1.457 1.425 1.393 1.362 1.332 1.303 1.274 1.246 1.218 1.191 1.165 1.139 1.114 1.089 1.065 1.041 1.018 0.996 0.973 0.952 0.931 0.91 0.89 0.87

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.381" PeakHeight="110.0" Num="3" Error="0.0">
-30.494 13.141 -3.163
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.381" EndFrequency="11.45" PeakHeight="316.463" Num="5" zHalfNm="217.935" Error="2.479">
-179.571 -36.919 21.539 -7.706 0.965
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="4.771" Depth="0.123"/>
<TopsideChapman PeakHeight="316.463" PeakDensity="1626581.9" PeakScaleHeight="69.44" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
