<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-22 -295 09:00:00.000"
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="12.0">
<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: F2o cusp not found, One of F2 cusps was derived from the other, F2O model cusp does not fit trace</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" >
2026.10.22 (295) 09:00:00</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">
FF202629510220900009039031101000005012000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="6.100" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.347" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="20.417" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="5.150" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="5.150" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="6.450" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="287.219" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="287.219" 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="5.650" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="305.898" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="1.590" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="5.150" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="5.150" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="254.949" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="198.197" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="5.845" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="78.241" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="8.464" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="42.431" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="82.660" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.970" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="20">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
5.15 5.2 5.25 5.3 5.35 5.4 5.45 5.5 5.55 5.6 5.65 5.7 5.75 5.8 5.85 5.9 5.95 6.0 6.05 6.1
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
287.219 288.252 289.393 290.660 292.074 293.664 295.464 297.518 299.886 302.644 305.898 309.794 314.543 320.000 330.000 340.000 350.000 375.000 405.000 472.587
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
1.953125 0.390625 0.390625 1.171875 0.390625 0.390625 1.171875 0.390625 -1.953125 1.171875 0.390625 0.390625 1.171875 1.171875 2.734375 -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="145">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
89.898 90.0 95.0 100.0 105.0 110.0 115.0 120.0 120.658 125.0 130.0 131.316 135.0 140.0 141.974 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 254.949 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.209 1.063 1.377 1.539 1.59 1.559 1.465 1.447 1.447 1.447 1.447 1.496 1.564 1.59 1.702 1.9 2.114 2.343 2.584 2.836 3.095 3.358 3.623 3.888 4.149 4.405 4.653 4.891 5.116 5.325 5.516 5.686 5.83 5.946 6.031 6.083 6.1 6.1 6.092 6.068 6.031 5.98 5.918 5.846 5.765 5.675 5.579 5.476 5.369 5.257 5.142 5.024 4.904 4.782 4.66 4.537 4.415 4.293 4.171 4.051 3.932 3.815 3.699 3.585 3.474 3.365 3.258 3.153 3.051 2.951 2.854 2.759 2.667 2.578 2.491 2.406 2.324 2.245 2.168 2.093 2.021 1.95 1.883 1.817 1.753 1.692 1.632 1.575 1.519 1.465 1.414 1.363 1.315 1.268 1.223 1.18 1.137 1.097 1.058 1.02 0.983 0.948 0.914 0.881 0.85 0.819 0.79 0.761 0.734 0.708 0.682 0.658 0.634 0.611 0.589 0.568 0.547 0.528 0.509 0.49 0.473 0.455 0.439 0.423 0.408 0.393 0.379 0.365 0.352 0.339 0.327 0.315 0.304 0.293 0.282 0.272 0.262 0.253 0.244 0.235 0.226 0.218 0.21 0.203

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="1.59" PeakHeight="110.0" Num="3" Error="0.0">
-28.325 10.142 -1.919
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="1.59" EndFrequency="6.1" PeakHeight="254.949" Num="5" zHalfNm="198.197" Error="1.123">
-111.565 -1.992 1.067 -0.577 0.092
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="31.974" Depth="0.143"/>
<TopsideChapman PeakHeight="254.949" PeakDensity="461662.53" PeakScaleHeight="42.431" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
