<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-03 -307 12:10:00.000"
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="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" >
2026.11.03 (307) 12:10:00</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">
FF202630711031210009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="18" >
<URSI ID="00" Val="10.200" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.869" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="39.468" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="6.950" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="6.950" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="10.500" 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="0.150" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="8.150" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="179.737" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="3.136" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="6.950" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="6.950" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.241" Units="MHz" ModelName="IRI-90" />
<Modeled Name="foF2p" Val="8.004" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="66">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
85.000 85.000 85.000 85.000 85.000 85.000 85.000 85.000 85.000 85.000 85.000 85.000 85.000 85.000 85.000 85.000 85.000 85.000 85.000 100.789 116.579 132.368 148.158 163.947 179.737 195.526 211.316 227.105 242.895 258.684 274.474 290.263 306.053 321.842 337.632 353.421 369.211 385.000 387.500 390.000 392.500 395.000 395.000 395.000 397.500 400.000 405.000 405.000 405.000 408.571 412.143 415.714 419.286 422.857 426.429 430.000 432.500 435.000 440.080 445.777 452.209 459.528 467.933 477.682 489.129 502.758
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
60 60 0 0 0 0 0 0 0 0 0 0 0 57 57 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 54 0 0 0 63 0 57 0 66 0 0 0 0 0 0 0 0 0 51 0 54 0 0 0 0 51 54 0 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-0.390625 0.390625 0.390625 -0.390625 -0.390625 0.390625 1.171875 1.953125 2.734375 -1.953125 -0.390625 2.734375 -0.390625 0.390625 0.390625 -1.953125 1.953125 0.390625 0.390625 2.734375 -1.953125 0.390625 0.390625 -2.734375 -2.734375 2.734375 1.953125 1.171875 1.171875 -1.171875 0.390625 -0.390625 -2.734375 1.953125 -2.734375 -1.171875 -2.734375 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 1.171875 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 -2.734375 0.390625 0.390625 1.171875 0.390625 1.171875 1.171875 1.171875
</TraceValueList>
</Trace>
</TraceList>
</SAORecord>
</SAORecordList>
