<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-03-02 -061 08:30:00.000"
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="18.0">
<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 11 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.44 Confidence: 100%</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" >
2026.03.02 (061) 08:30:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.63" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-11.16" 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">
FF202606103020830009039031101000005018000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="4.300" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.188" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.710" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.000" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.000" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.650" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="240.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="240.000" 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="3.900" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="320.000" 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="0.485" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.000" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.000" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="296.636" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="238.631" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.158" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="82.019" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="4.150" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="44.160" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="67.170" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="4.500" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="47">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.0 2.05 2.1 2.15 2.2 2.25 2.3 2.35 2.4 2.45 2.5 2.55 2.6 2.65 2.7 2.75 2.8 2.85 2.9 2.95 3.0 3.05 3.1 3.15 3.2 3.25 3.3 3.35 3.4 3.45 3.5 3.55 3.6 3.65 3.7 3.75 3.8 3.85 3.9 3.95 4.0 4.05 4.1 4.15 4.2 4.25 4.3
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
240.000 240.000 240.000 240.000 241.000 242.000 243.000 244.000 245.000 247.500 250.000 252.500 255.000 257.500 260.000 260.000 260.000 260.000 265.000 265.000 265.000 265.000 265.000 265.000 267.500 270.000 275.000 285.000 286.250 287.500 288.750 290.000 290.000 295.000 300.000 300.000 310.000 315.000 320.000 330.000 335.000 344.432 356.966 374.432 400.456 443.365 527.491
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
60 0 66 66 0 57 0 0 66 0 0 66 0 0 63 0 54 69 60 66 69 69 0 66 0 0 69 57 0 0 0 72 63 0 72 69 69 66 66 63 63 0 54 63 66 0 51
</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 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 -0.390625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.33" Type="vertical" >
<Tabulated Num="147">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
91.762 95.0 100.0 105.0 110.0 115.0 120.0 125.0 130.0 135.0 138.132 140.0 145.0 150.0 155.0 160.0 165.0 166.264 170.0 175.0 180.0 185.0 190.0 194.396 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 296.636 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.321 0.42 0.47 0.485 0.479 0.459 0.424 0.37 0.284 0.201 0.201 0.201 0.201 0.201 0.201 0.201 0.201 0.239 0.289 0.34 0.39 0.441 0.485 0.497 0.604 0.737 0.91 1.151 1.502 1.966 2.431 2.813 3.117 3.363 3.566 3.733 3.873 3.988 4.083 4.159 4.217 4.26 4.287 4.299 4.3 4.298 4.286 4.264 4.234 4.196 4.15 4.099 4.042 3.979 3.913 3.842 3.769 3.692 3.614 3.534 3.453 3.37 3.288 3.204 3.121 3.039 2.956 2.875 2.794 2.714 2.635 2.558 2.482 2.407 2.334 2.262 2.192 2.123 2.057 1.991 1.928 1.866 1.806 1.747 1.69 1.635 1.581 1.529 1.478 1.429 1.381 1.335 1.29 1.247 1.205 1.164 1.125 1.086 1.05 1.014 0.979 0.946 0.914 0.882 0.852 0.823 0.795 0.767 0.741 0.715 0.691 0.667 0.644 0.622 0.6 0.58 0.56 0.54 0.522 0.504 0.486 0.469 0.453 0.437 0.422 0.408 0.393 0.38 0.367 0.354 0.342 0.33 0.318 0.307 0.297 0.286 0.276 0.267 0.258 0.249 0.24 0.232 0.224 0.216 0.208 0.201

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.485" PeakHeight="110.0" Num="3" Error="0.0">
-22.049 4.183 -0.372
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.485" EndFrequency="4.3" PeakHeight="296.636" Num="5" zHalfNm="238.631" Error="2.051">
-124.833 35.288 -15.513 2.878 -0.06
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="84.396" Depth="0.284"/>
<TopsideChapman PeakHeight="296.636" PeakDensity="229404.47" PeakScaleHeight="44.16" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
