<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-03 -307 20:30:00.000"
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) 20:30:00</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">
FF202630711032030009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="17" >
<URSI ID="00" Val="11.500" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.008" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="34.592" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="4.550" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="4.550" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="12.000" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="125.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="125.000" 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="0.200" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="7.250" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="185.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="1.437" 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="9.362" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="140">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 9.85 9.9 9.95 10.0 10.05 10.1 10.15 10.2 10.25 10.3 10.35 10.4 10.45 10.5 10.55 10.6 10.65 10.7 10.75 10.8 10.85 10.9 10.95 11.0 11.05 11.1 11.15 11.2 11.25 11.3 11.35 11.4 11.45 11.5
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
125.000 135.000 125.000 128.333 131.667 135.000 135.000 135.000 135.000 130.000 131.667 133.333 135.000 150.000 135.000 135.000 137.500 140.000 140.000 140.000 145.000 144.500 144.000 143.500 143.000 142.500 142.000 141.500 141.000 140.500 140.000 140.000 140.000 140.000 140.000 135.000 140.000 140.000 140.000 140.000 140.000 135.000 140.000 145.000 142.500 140.000 140.000 140.000 140.000 140.000 140.000 151.250 162.500 173.750 185.000 196.250 207.500 218.750 230.000 241.250 252.500 263.750 275.000 286.250 297.500 308.750 320.000 331.250 342.500 353.750 365.000 376.250 387.500 398.750 410.000 410.833 411.667 412.500 413.333 414.167 415.000 415.000 417.500 420.000 420.000 425.000 425.000 425.000 430.000 430.000 430.000 430.000 430.000 430.000 435.000 435.000 435.000 436.667 438.333 440.000 440.000 445.000 442.500 440.000 445.000 445.000 445.000 447.500 450.000 450.000 450.000 450.000 450.000 455.000 455.000 455.000 455.000 460.000 462.500 465.000 465.000 465.000 465.000 470.000 472.101 474.412 476.968 479.810 482.989 486.566 490.625 495.267 500.629 506.892 514.304 523.213 534.125 547.799 565.437 589.053
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 60 66 54 57 54 60 57 0 60 0 0 60 51 60 60 0 57 0 0 0 0 0 0 0 0 0 0 0 0 57 0 0 57 60 57 57 0 0 0 51 54 54 51 0 54 51 51 57 48 51 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 63 0 0 0 0 0 69 0 0 69 0 0 69 0 0 0 72 0 0 66 0 60 72 0 66 0 66 0 63 63 0 0 57 60 0 57 0 63 60 60 63 54 57 0 0 0 0 0 0 0 0 0 0 0 0 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
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</TraceValueList>
</Trace>
</TraceList>
</SAORecord>
</SAORecordList>
