<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-02-05 -036 01:40:00.000"
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" >
2026.02.05 (036) 01:40:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.63" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-11.13" 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">
FF202603602050140009039031101000005018000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="17" >
<URSI ID="00" Val="7.850" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.315" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="26.019" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.800" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.800" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="7.950" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="250.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="250.000" 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="7.600" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="335.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.800" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.800" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF2p" Val="5.807" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="102">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 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 7.85
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
250.000 250.000 255.000 260.000 255.000 262.500 270.000 278.750 287.500 296.250 305.000 305.000 315.000 315.000 330.000 330.217 330.435 330.652 330.870 331.087 331.304 331.522 331.739 331.957 332.174 332.391 332.609 332.826 333.043 333.261 333.478 333.696 333.913 334.130 334.348 334.565 334.783 335.000 330.000 325.000 320.000 310.000 305.000 310.000 315.000 315.000 320.000 320.000 320.000 325.000 330.000 330.000 330.000 330.000 330.000 337.500 345.000 335.000 325.000 305.000 320.000 315.000 310.000 290.000 287.500 285.000 280.000 280.000 280.000 280.000 280.000 280.000 280.000 282.500 285.000 285.000 285.000 285.000 290.000 300.000 300.000 305.000 310.000 315.000 320.000 315.000 320.000 325.000 330.000 332.500 335.000 337.500 340.000 342.500 345.000 350.000 335.000 345.000 346.194 348.292 352.937 371.972
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 69 0 63 66 0 63 0 0 0 57 60 57 57 57 0 0 0 51 0 0 0 0 51 0 0 48 0 51 0 57 54 0 0 0 51 0 51 54 51 57 0 60 54 57 57 54 0 54 0 57 0 0 57 54 0 57 57 54 60 57 0 63 63 63 57 60 60 57 57 54 0 57 0 60 60 66 63 66 69 63 57 0 63 57 60 0 51 51 0 0 0 0 0 60 60 54 57 54 60 54 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 1.171875 -0.390625 -0.390625 1.953125 0.390625 -0.390625 -0.390625 -0.390625 -0.390625 1.953125 1.953125 -0.390625 0.390625 1.953125 0.390625 1.953125 -0.390625 -0.390625 1.953125 -0.390625 1.171875 -0.390625 1.953125 0.390625 0.390625 1.953125 2.734375 1.171875 0.390625 1.171875 1.953125 1.171875 0.390625 0.390625 1.953125 0.390625 0.390625 1.171875 0.390625 1.171875 2.734375 1.171875 1.171875 1.171875 1.953125 1.171875 1.171875 1.171875 0.390625 1.171875 1.171875 0.390625 1.171875 1.171875 1.953125 1.171875 0.390625 0.390625 2.734375 -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 -1.171875 1.171875 1.171875 1.171875 0.390625 -0.390625 1.953125 -2.734375 -1.171875 -0.390625 -2.734375 -2.734375 1.953125 0.390625 1.171875 1.953125 1.171875 1.171875 1.953125 -1.953125
</TraceValueList>
</Trace>
</TraceList>
</SAORecord>
</SAORecordList>
