<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-03-06 -065 02:20:00.000"
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" >
2026.03.06 (065) 02:20:00</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">
FF202606503060220009039031101000005018000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="18" >
<URSI ID="00" Val="9.050" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.442" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="31.147" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.100" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.100" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="9.350" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="230.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="230.000" 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="0.500" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="8.700" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="310.000" 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="5.650" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="5.650" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF2p" Val="6.202" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="120">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
320.000 300.000 297.500 295.000 285.000 278.333 271.667 265.000 260.000 250.000 240.000 247.857 255.714 263.571 271.429 279.286 287.143 295.000 290.000 285.000 280.000 275.000 270.000 275.000 275.000 270.833 266.667 262.500 258.333 254.167 250.000 242.500 235.000 250.000 250.000 235.000 250.000 245.000 240.000 239.375 238.750 238.125 237.500 236.875 236.250 235.625 235.000 240.000 245.000 250.000 255.000 230.000 255.000 260.000 255.000 260.000 260.000 260.000 260.000 250.000 275.000 270.000 265.000 265.000 265.000 270.000 270.714 271.429 272.143 272.857 273.571 274.286 275.000 275.714 276.429 277.143 277.857 278.571 279.286 280.000 280.714 281.429 282.143 282.857 283.571 284.286 285.000 290.000 295.000 298.333 301.667 305.000 310.000 310.000 310.000 310.000 310.000 308.750 307.500 306.250 305.000 310.000 310.000 310.000 310.000 310.000 308.333 306.667 305.000 305.000 305.000 307.500 310.000 315.000 320.000 326.514 335.165 347.209 365.129 394.614
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
54 57 0 51 60 0 0 66 63 57 63 0 54 0 54 0 51 48 0 54 0 69 60 60 66 63 0 0 0 0 0 0 57 57 60 0 60 0 63 66 0 63 69 0 57 63 57 57 66 0 57 54 63 57 69 60 0 0 60 60 63 0 63 0 57 60 0 57 0 0 57 54 0 0 51 0 0 0 0 0 0 0 0 0 0 0 48 0 51 0 0 0 54 60 54 57 60 54 57 60 60 60 54 60 57 60 0 54 66 0 51 60 60 60 60 0 54 0 51 48
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
1.953125 1.953125 0.390625 -1.171875 1.953125 -1.171875 1.953125 -0.390625 -0.390625 -0.390625 -0.390625 1.171875 -0.390625 -0.390625 -1.171875 1.171875 -0.390625 -0.390625 -1.171875 -0.390625 -0.390625 -1.171875 -0.390625 -1.171875 -1.171875 -1.171875 -0.390625 0.390625 0.390625 1.171875 1.171875 1.171875 0.390625 0.390625 1.171875 0.390625 1.171875 1.171875 -0.390625 1.171875 1.171875 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 1.171875 1.171875 1.171875 0.390625 0.390625 0.390625 0.390625 1.171875 0.390625 2.734375 -1.171875 1.171875 1.953125 -1.171875 1.171875 1.171875 -0.390625 -0.390625 1.171875 1.171875 1.953125 1.171875 1.171875 1.171875 -1.953125 1.953125 -0.390625 0.390625 1.953125 1.171875 1.171875 -1.953125 -0.390625 1.953125 1.171875 -2.734375 -0.390625 1.171875 -2.734375 1.171875 -0.390625 1.171875 1.953125 2.734375 -0.390625 -2.734375 0.390625 0.390625 1.171875 1.953125 -0.390625 0.390625 0.390625 0.390625 0.390625 1.953125 0.390625 -0.390625 0.390625 1.953125 1.953125 0.390625 0.390625 1.953125 0.390625 0.390625 1.171875 0.390625 1.171875 1.171875 1.953125 1.171875 -1.953125
</TraceValueList>
</Trace>
</TraceList>
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