<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-03-06 -065 02:00:00.000"
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) 02:00:00</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">
FF202606503060200009039031101000005018000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="18" >
<URSI ID="00" Val="8.100" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.677" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="29.781" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.950" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.950" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="8.500" 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="0.300" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="7.850" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="280.000" 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="3.500" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.500" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF2p" Val="6.427" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="104">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
270.000 270.000 270.000 267.500 265.000 259.000 253.000 247.000 241.000 235.000 232.500 230.000 250.000 230.000 231.818 233.636 235.455 237.273 239.091 240.909 242.727 244.545 246.364 248.182 250.000 255.000 260.000 260.000 265.000 267.500 270.000 272.500 275.000 290.000 287.500 285.000 282.500 280.000 280.000 280.000 280.000 285.000 290.000 295.000 293.636 292.273 290.909 289.545 288.182 286.818 285.455 284.091 282.727 281.364 280.000 281.667 283.333 285.000 285.000 284.167 283.333 282.500 281.667 280.833 280.000 275.000 270.833 266.667 262.500 258.333 254.167 250.000 260.000 255.000 250.000 265.000 262.500 260.000 250.000 251.818 253.636 255.455 257.273 259.091 260.909 262.727 264.545 266.364 268.182 270.000 270.000 270.000 275.000 275.000 275.000 275.000 280.000 280.000 280.000 288.333 296.667 305.000 315.000 325.000
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
60 0 63 0 57 0 0 0 0 0 0 66 57 72 0 63 0 0 0 0 0 0 0 63 54 72 69 69 66 63 69 0 54 60 0 0 0 63 0 60 54 60 0 57 0 0 57 57 0 0 60 0 63 63 0 60 63 63 54 0 0 0 0 0 63 63 0 54 0 0 60 60 60 60 57 54 0 54 60 54 0 0 0 0 0 0 0 0 0 54 0 51 54 54 51 54 54 54 57 66 63 60 60 54
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
1.171875 -0.390625 1.171875 -0.390625 1.171875 -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 0.390625 1.171875 0.390625 -1.171875 0.390625 -1.171875 -1.171875 -0.390625 -1.171875 -0.390625 -1.171875 2.734375 -0.390625 -0.390625 2.734375 2.734375 2.734375 -1.171875 2.734375 -0.390625 -0.390625 -1.171875 1.953125 2.734375 2.734375 2.734375 -0.390625 -0.390625 2.734375 -1.953125 -0.390625 0.390625 -0.390625 -0.390625 -0.390625 -1.953125 0.390625 -0.390625 -1.171875 1.953125 -1.171875 0.390625 -1.953125 -1.171875 -0.390625 -0.390625 -1.171875 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 1.171875 0.390625 1.171875 1.171875 0.390625 1.171875 -1.171875 0.390625 1.171875 -0.390625 -2.734375 -2.734375 -2.734375 0.390625 1.171875 -2.734375 1.171875 0.390625 1.171875 -1.171875 -1.953125 1.171875 1.171875 -1.171875 -0.390625 -0.390625 -0.390625 0.390625 0.390625
</TraceValueList>
</Trace>
</TraceList>
</SAORecord>
</SAORecordList>
