<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-04 -124 04:40:00.000"
URSICode="SMK29"
StationName="Santa Maria"
GeoLatitude="-29.69"
GeoLongitude="307.81"
Source="Ionosonde"
SourceType="DPS-4D"
ScalerType="auto">
<SystemInfo UMLStationID="129">
<FrequencyStepping StartFrequency="2.0" StopFrequency="15.0">
<LinearStepping Step="0.025" Units="MHz" />
</FrequencyStepping>
<RangeStepping StartRange="80.0" StopRange="1360.0" >
<LinearStepping Step="2.5" Units="km" />
</RangeStepping>
<AutoScaler Name="Artist5" Version="500200" ArtistFlags="2 2 0 0 0 0 0 0 0 11 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 100%</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.04 (124) 04:40:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.21" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.99" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="75.82641" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202612405040440001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.650" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.302" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.054" 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="3.975" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="280.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="280.000" 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="3.475" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="327.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.950" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.950" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="290.069" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="262.443" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.777" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="39.573" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.478" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="21.072" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="38.040" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.440" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="29">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.95 2.975 3.0 3.025 3.05 3.075 3.1 3.125 3.15 3.175 3.2 3.225 3.25 3.275 3.3 3.325 3.35 3.375 3.4 3.425 3.45 3.475 3.5 3.525 3.55 3.575 3.6 3.625 3.65
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
280.000 282.500 285.000 285.000 287.500 287.500 290.000 291.250 292.500 295.000 296.250 297.500 300.000 302.500 305.000 310.000 310.000 317.500 318.750 320.000 325.000 327.500 331.539 336.711 343.573 353.114 367.281 390.520 435.643
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 72 72 87 87 96 96 0 90 93 0 93 96 96 96 96 93 87 0 96 96 81 72 81 78 75 72 75 69
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 -1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 -1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 -1.5625 -1.5625 1.5625 -1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="525">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
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<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.354" PeakHeight="110.0" Num="3" Error="0.0">
-18.791 2.435 -0.142
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.354" EndFrequency="3.65" PeakHeight="290.069" Num="5" zHalfNm="262.443" Error="1.58">
-70.407 4.076 -2.95 1.566 -0.43
</ShiftedChebyshev>
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<QuasiParabolicList Num="8" EarthRadius="6370.0">
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<QuasiParabolic ID="2" StartDistance="6517.308" EndDistance="6554.616" A="0.0" B="-1365.2322" C="0.24951525" Error="0.0307"/>
<QuasiParabolic ID="3" StartDistance="6554.616" EndDistance="6591.0" A="4.6602146E10" B="-1.4277047E7" C="1093.5037" Error="0.0307"/>
<QuasiParabolic ID="4" StartDistance="6591.0" EndDistance="6592.0" A="8.3734954E12" B="-2.54102349E9" C="192775.08" Error="2.37E-10"/>
<QuasiParabolic ID="5" StartDistance="6592.0" EndDistance="6608.0" A="4.01306708E12" B="-1.21807808E9" C="92430.305" Error="0.0285"/>
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</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="111.924" Depth="0.154"/>
<TopsideChapman PeakHeight="290.069" PeakDensity="165291.56" PeakScaleHeight="21.072" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
