<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-03-03 -062 01:50:00.000"
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="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 8 0 0 0 0 0 0 0 55 1 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.44: Problems inverting F-trace to N(h)-profile</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" >
2026.03.03 (062) 01:50:00</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">
FF202606203030150009039031101000005018000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="18" >
<URSI ID="00" Val="7.800" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.708" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="28.921" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.000" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.000" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="8.450" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="270.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="270.000" 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="0.300" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="7.700" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="285.000" 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="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.000" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.000" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF2p" Val="6.539" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="97">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 4.35 4.4 4.45 4.5 4.55 4.6 4.65 4.7 4.75 4.8 4.85 4.9 4.95 5.0 5.05 5.1 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 6.15 6.2 6.25 6.3 6.35 6.4 6.45 6.5 6.55 6.6 6.65 6.7 6.75 6.8 6.85 6.9 6.95 7.0 7.05 7.1 7.15 7.2 7.25 7.3 7.35 7.4 7.45 7.5 7.55 7.6 7.65 7.7 7.75 7.8
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
270.000 275.000 280.000 280.000 281.429 282.857 284.286 285.714 287.143 288.571 290.000 288.333 286.667 285.000 290.000 295.000 297.000 299.000 301.000 303.000 305.000 305.000 305.000 305.000 305.000 310.000 310.000 310.000 315.000 315.833 316.667 317.500 318.333 319.167 320.000 320.000 325.000 327.500 330.000 328.333 326.667 325.000 320.000 330.000 327.500 325.000 325.000 330.000 335.000 335.000 335.000 340.000 345.000 350.000 355.000 360.000 358.571 357.143 355.714 354.286 352.857 351.429 350.000 355.000 357.500 360.000 355.000 350.000 345.000 345.000 350.000 355.000 350.000 350.000 350.000 350.000 350.000 345.000 335.000 345.000 325.000 320.000 320.000 312.500 305.000 302.500 300.000 297.500 295.000 292.500 290.000 285.000 285.000 285.000 285.000 295.000 309.120
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
60 0 72 60 0 63 63 69 66 0 69 0 0 66 63 0 0 69 66 60 63 0 63 69 75 72 75 66 69 0 0 0 0 66 60 60 66 0 57 51 0 60 66 69 57 60 60 0 63 60 72 63 60 57 0 60 57 57 0 0 57 0 60 60 0 57 60 57 60 63 0 60 57 57 0 0 54 54 57 57 57 60 60 0 60 0 0 0 0 0 63 66 63 66 60 63 66
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
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</TraceValueList>
</Trace>
</TraceList>
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