<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-13 -103 04:45:00.000"
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) 04:45:00</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">
FF202610304130445001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.500" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.376" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.814" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.550" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.550" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.875" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="265.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="265.000" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.300" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="310.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.550" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.550" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="281.341" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="253.948" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.387" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="39.161" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.358" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="21.245" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="35.240" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.250" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="39">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
265.000 265.000 265.000 265.000 267.500 270.000 270.000 271.250 272.500 275.000 275.000 275.000 275.000 276.500 278.000 279.500 281.000 282.500 285.000 287.500 287.500 287.500 290.000 292.500 295.000 297.500 300.000 302.500 307.500 310.000 310.000 315.000 320.000 325.000 330.000 335.000 352.500 357.500 377.500
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 0 69 72 69 72 72 0 72 72 69 0 45 0 0 0 0 72 0 87 87 96 93 84 87 96 96 93 96 84 84 87 90 90 90 90 87 75 75
</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="516">
<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="3.5" PeakHeight="281.341" Num="5" zHalfNm="253.948" Error="1.663">
-67.876 8.884 -5.626 3.035 -1.258
</ShiftedChebyshev>
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<ProfileValley Model="ULCAR" Width="108.5" Depth="0.154"/>
<TopsideChapman PeakHeight="281.341" PeakDensity="151985.11" PeakScaleHeight="21.245" />
</Profile>
</ProfileList>
</SAORecord>
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