<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-02 -306 11:50:00.000"
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="14.0">
<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 0 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" >
2026.11.02 (306) 11:50:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.63" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-11.41" 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">
FF202630611021150009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="18" >
<URSI ID="00" Val="9.450" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.792" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="35.836" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="6.100" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="6.100" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="9.750" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="85.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="85.000" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="7.400" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="181.279" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="3.064" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="6.100" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="6.100" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.205" Units="MHz" ModelName="IRI-90" />
<Modeled Name="foF2p" Val="7.952" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="68">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
85.000 85.000 85.000 85.000 85.625 86.250 86.875 87.500 88.125 88.750 89.375 90.000 85.000 85.000 85.000 93.023 101.047 109.070 117.093 125.116 133.140 141.163 149.186 157.209 165.233 173.256 181.279 189.302 197.326 205.349 213.372 221.395 229.419 237.442 245.465 253.488 261.512 269.535 277.558 285.581 293.605 301.628 309.651 317.674 325.698 333.721 341.744 349.767 357.791 365.814 373.837 381.860 389.884 397.907 405.930 413.953 421.977 430.000 430.000 435.000 445.000 450.000 460.000 465.000 474.432 486.966 504.432 530.456
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
60 0 0 54 0 0 0 0 0 0 0 48 0 0 60 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 60 0 57 63 54 54 60 45 54 45
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-0.390625 -0.390625 0.390625 -0.390625 -1.953125 0.390625 -0.390625 0.390625 0.390625 -1.171875 1.953125 0.390625 0.390625 -0.390625 -0.390625 -2.734375 -2.734375 -2.734375 -2.734375 -1.171875 -1.171875 -0.390625 -0.390625 2.734375 1.171875 0.390625 0.390625 -1.953125 1.171875 1.953125 2.734375 0.390625 -1.171875 0.390625 -1.171875 -1.171875 -2.734375 2.734375 2.734375 -0.390625 1.171875 -1.953125 -1.953125 1.953125 0.390625 2.734375 -2.734375 1.171875 1.171875 -2.734375 0.390625 0.390625 -1.171875 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 0.390625
</TraceValueList>
</Trace>
</TraceList>
</SAORecord>
</SAORecordList>
