<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-03-09 -068 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" >
2026.03.09 (068) 01:40:00</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">
FF202606803090140009039031101000005018000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="17" >
<URSI ID="00" Val="10.450" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.190" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="33.333" 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="10.900" 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="0.150" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="10.400" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="374.520" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.950" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.950" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF2p" Val="6.648" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="154">
<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 7.9 7.95 8.0 8.05 8.1 8.15 8.2 8.25 8.3 8.35 8.4 8.45 8.5 8.55 8.6 8.65 8.7 8.75 8.8 8.85 8.9 8.95 9.0 9.05 9.1 9.15 9.2 9.25 9.3 9.35 9.4 9.45 9.5 9.55 9.6 9.65 9.7 9.75 9.8 9.85 9.9 9.95 10.0 10.05 10.1 10.15 10.2 10.25 10.3 10.35 10.4 10.45
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
255.000 255.000 260.000 270.000 269.615 269.231 268.846 268.462 268.077 267.692 267.308 266.923 266.538 266.154 265.769 265.385 265.000 262.500 260.000 255.000 250.000 245.000 242.500 240.000 243.000 246.000 249.000 252.000 255.000 260.000 260.000 258.000 256.000 254.000 252.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 255.000 255.000 265.000 267.500 270.000 270.000 275.000 277.500 280.000 280.000 280.000 280.000 280.000 275.000 275.000 275.000 272.500 270.000 270.000 270.000 268.750 267.500 266.250 265.000 260.000 258.333 256.667 255.000 255.000 255.000 258.333 261.667 265.000 265.000 265.000 265.000 265.000 265.000 265.000 265.000 260.000 260.000 260.000 260.000 260.000 265.000 270.000 270.000 275.000 277.500 280.000 285.000 290.000 290.000 290.000 290.000 290.000 292.500 295.000 295.000 295.000 296.333 297.667 299.000 300.333 301.667 303.000 304.333 305.667 307.000 308.333 309.667 311.000 312.333 313.667 315.000 315.000 320.000 320.000 320.000 322.500 325.000 325.000 325.000 327.500 330.000 330.000 335.000 340.000 345.000 345.000 345.000 345.000 355.000 360.000 362.500 365.000 365.000 365.000 370.000 370.325 370.773 371.433 372.500 374.520 379.797
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 66 60 60 0 0 0 0 0 54 0 0 0 57 57 0 57 0 57 0 0 0 0 63 66 0 0 0 63 60 63 0 0 0 0 0 0 69 0 0 0 72 69 63 72 0 0 72 72 69 69 63 57 69 66 54 54 66 0 63 63 0 0 66 0 69 69 72 0 0 63 66 72 72 0 72 66 63 72 0 69 0 0 0 72 72 72 66 63 66 0 0 57 0 69 72 60 72 63 72 66 66 72 63 69 66 63 69 63 0 69 72 66 66 60 69 0 66 69 57 0 72 66 72 75 69 72 69 0 66 63 69 63 69 66 60 0 66 0 63 66 60 63 48 63 54 54 54 54 48 48 0 45 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
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</TraceValueList>
</Trace>
</TraceList>
</SAORecord>
</SAORecordList>
