<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-30 -120 01:50:00.000"
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" >
2026.04.30 (120) 01:50:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.20" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.98" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202612004300150001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="5.000" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.516" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="17.579" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.975" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.975" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="5.375" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="230.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="230.000" 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="4.750" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="293.109" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.975" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.975" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="261.874" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="230.561" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.955" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="44.284" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="3.098" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="24.370" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="35.360" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="4.400" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="82">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
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<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
72 75 99 99 87 81 99 99 102 102 102 99 96 99 99 102 102 96 99 99 87 87 87 87 87 87 84 81 84 87 72 66 66 66 93 93 93 96 105 105 81 81 90 93 93 93 108 108 108 111 99 99 96 96 96 93 96 93 63 72 54 60 78 81 93 93 105 105 105 105 90 93 93 90 90 90 90 87 84 78 63 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
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</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="568">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
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<ProfileValley Model="ULCAR" Width="84.0" Depth="0.154"/>
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</Profile>
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