<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-23 -296 16:00:00.000"
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 33 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.44 Confidence: 65% PACIFIC flags: F2x cusp not found, Multiple candidates for F2o cusp, One of F2 cusps was derived from the other</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" >
2026.10.23 (296) 16:00:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.63" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-11.40" 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">
FF202629610231600009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="11.100" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.438" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="27.059" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="10.100" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="10.100" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.450" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="505.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="505.000" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="10.300" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="520.000" 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="3.329" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="10.100" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="10.100" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.332" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="362.449" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="232.919" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.326" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="172.065" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="60.619" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="93.092" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="195.130" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.660" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="21">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
505.000 510.000 515.000 530.000 520.000 525.000 535.000 540.000 545.000 545.000 555.000 560.000 565.000 575.000 585.000 595.000 605.000 617.500 630.000 642.537 655.941
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 45 45 0 0 51 0 0 0 0 0 0 0 0 0 0 42 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 2.734375 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" >
89.492 90.0 95.0 100.0 105.0 110.0 111.802 113.604 115.0 115.406 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 362.449 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.24 2.24 2.881 3.221 3.329 3.206 3.206 3.301 3.329 3.493 3.662 3.827 3.993 4.161 4.334 4.512 4.697 4.888 5.085 5.288 5.496 5.707 5.92 6.134 6.346 6.556 6.764 6.967 7.167 7.363 7.554 7.742 7.925 8.104 8.279 8.451 8.619 8.783 8.945 9.103 9.259 9.411 9.561 9.707 9.85 9.989 10.125 10.257 10.383 10.504 10.619 10.726 10.823 10.909 10.981 11.038 11.078 11.098 11.1 11.099 11.093 11.081 11.063 11.04 11.011 10.977 10.939 10.896 10.848 10.796 10.74 10.681 10.617 10.551 10.481 10.408 10.332 10.254 10.173 10.09 10.005 9.917 9.828 9.737 9.645 9.551 9.456 9.36 9.262 9.164 9.065 8.966 8.865 8.765 8.664 8.562 8.461 8.359 8.257 8.155 8.054 7.952 7.851 7.75 7.649 7.549 7.449 7.349 7.25 7.152 7.054 6.957 6.861 6.765 6.67 6.576 6.483 6.39 6.298 6.207 6.117 6.028 5.94 5.852 5.766 5.68 5.596 5.512 5.429 5.347 5.266 5.187 5.108 5.03 4.953 4.877 4.801 4.727 4.654 4.582 4.511 4.44 4.371 4.302 4.235 4.168 4.103 4.038 3.974 3.911 3.849 3.788 3.728 3.668 3.61 3.552 3.495 3.439 3.384 3.329 3.276 3.223 3.171 3.12 3.07 3.02 2.971 2.923 2.875 2.829 2.783 2.738 2.693 2.649 2.606 2.564 2.522 2.48 2.44 2.4 2.361 2.322 2.284 2.247 2.21 2.174 2.138

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.329" PeakHeight="110.0" Num="3" Error="0.0">
-30.457 13.086 -3.137
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.329" EndFrequency="11.1" PeakHeight="362.449" Num="5" zHalfNm="232.919" Error="5.811">
-232.778 -24.431 15.863 -8.644 2.947
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="5.406" Depth="0.123"/>
<TopsideChapman PeakHeight="362.449" PeakDensity="1528660.0" PeakScaleHeight="93.092" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
