<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-13 -103 06:35:00.000"
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" >
2026.04.13 (103) 06:35:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" 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">
FF202610304130635001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.275" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.381" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.074" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.050" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.050" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.575" 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="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.050" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="302.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.050" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.050" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
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<URSI ID="93" Val="229.561" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.161" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="49.080" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.468" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="26.636" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="40.870" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.930" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="50">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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<RangeList Type="float" Units="km" Description="Group Range" >
230.000 231.250 232.500 233.214 233.929 234.643 235.357 236.071 236.786 237.500 238.750 240.000 242.500 243.750 245.000 246.250 247.500 247.500 247.500 250.000 250.000 251.667 253.333 255.000 257.500 257.500 257.500 260.000 262.500 265.000 267.500 270.000 273.611 277.222 280.833 284.444 288.056 291.667 295.278 298.889 302.500 307.502 312.983 319.013 325.682 333.095 341.384 350.715 361.296 373.399
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 0 69 0 0 0 0 0 0 57 0 60 57 0 0 0 66 72 72 69 69 0 0 66 66 66 69 69 72 60 60 45 0 0 0 0 0 0 0 0 81 81 0 93 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>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="572">
<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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