<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-03-27 -086 02:10:00.000"
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" >
2026.03.27 (086) 02:10:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.63" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-11.18" 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">
FF202608603270210009039031101000005018000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="18" >
<URSI ID="00" Val="9.800" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.266" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="32.009" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.300" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.300" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="10.150" 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="0.250" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="9.750" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="360.157" 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="4.550" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="4.550" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF2p" Val="6.313" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="131">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
275.000 275.000 275.000 277.500 280.000 279.167 278.333 277.500 276.667 275.833 275.000 274.167 273.333 272.500 271.667 270.833 270.000 265.000 262.500 260.000 260.000 260.000 255.000 255.000 252.500 250.000 250.000 251.000 252.000 253.000 254.000 255.000 260.000 261.667 263.333 265.000 265.000 265.000 265.000 265.000 267.500 270.000 270.000 270.000 272.500 275.000 275.000 278.000 281.000 284.000 287.000 290.000 285.000 285.000 290.000 290.000 290.000 290.000 290.000 290.000 290.000 290.000 290.000 290.000 290.000 290.000 290.000 290.000 290.000 287.500 285.000 285.000 285.000 285.000 285.000 285.000 285.000 285.000 287.500 290.000 290.000 290.000 290.000 295.000 295.000 290.000 290.000 287.500 285.000 290.000 295.000 300.000 300.000 300.000 300.000 301.667 303.333 305.000 307.500 310.000 310.000 315.000 320.000 320.000 315.000 315.000 320.000 320.000 320.000 320.000 320.000 320.000 320.000 325.000 325.000 325.000 335.000 345.000 345.000 345.000 345.000 350.000 355.000 355.000 355.000 355.000 356.000 357.000 358.000 360.157 365.785
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 0 72 0 69 0 0 0 69 0 0 57 0 0 0 0 51 60 0 78 66 69 75 78 60 72 75 0 0 0 66 75 75 0 60 66 72 69 69 75 60 63 63 66 60 72 63 66 0 0 63 60 63 69 60 0 63 63 0 63 63 63 66 60 0 0 63 69 63 0 66 72 69 75 72 72 69 78 66 66 63 72 66 69 66 66 72 75 69 69 69 66 0 69 69 63 69 72 0 63 66 63 63 63 72 69 66 0 63 60 63 63 66 63 0 57 63 63 57 0 63 63 57 60 0 57 0 0 0 0 54
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
1.171875 1.171875 1.171875 1.171875 1.171875 1.171875 1.171875 1.171875 1.171875 1.171875 1.171875 0.390625 1.171875 1.171875 -2.734375 -1.953125 0.390625 0.390625 1.953125 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 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 0.390625 0.390625 0.390625 0.390625 0.390625 1.171875 0.390625 0.390625 0.390625 1.171875 0.390625 0.390625 0.390625 0.390625 1.171875 0.390625 0.390625 0.390625 0.390625 0.390625 1.171875 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 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 0.390625 0.390625 0.390625 -0.390625 0.390625 1.171875 -0.390625 0.390625 1.171875 1.171875 0.390625 1.953125 0.390625 0.390625 0.390625 0.390625 0.390625 -0.390625 1.171875 1.171875 1.171875 1.171875 0.390625 0.390625 1.953125 1.171875 -0.390625 0.390625 0.390625 0.390625 0.390625 1.171875 1.171875 1.171875 -2.734375 1.953125 -1.171875 0.390625 -2.734375 -1.171875 0.390625
</TraceValueList>
</Trace>
</TraceList>
</SAORecord>
</SAORecordList>
