<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-15 -105 09:35:00.000"
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="20.0">
<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 22 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 70% PACIFIC flags: F2 cusps do not match</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.15 (105) 09:35:00</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">
FF202610504150935001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.800" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.454" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="9.670" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.425" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.425" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="2.825" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="285.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="285.000" 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="2.800" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="331.040" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.940" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.425" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.425" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="245.987" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="208.298" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.883" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="47.842" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.193" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="26.190" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="59.630" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.390" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="16">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.425 2.45 2.475 2.5 2.525 2.55 2.575 2.6 2.625 2.65 2.675 2.7 2.725 2.75 2.775 2.8
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
285.000 287.500 290.000 292.500 295.000 297.500 300.000 302.500 305.000 307.500 310.447 313.703 317.319 321.358 325.899 331.040
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
57 0 60 0 0 0 0 0 0 57 57 60 60 57 0 48
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-3.125 -3.125 3.125 3.125 3.125 -3.125 3.125 -3.125 -3.125 -3.125 3.125 3.125 3.125 3.125 -3.125 3.125
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="540">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
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<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.94" PeakHeight="110.0" Num="3" Error="0.0">
-26.225 7.709 -1.144
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.94" EndFrequency="2.8" PeakHeight="245.987" Num="5" zHalfNm="208.298" Error="1.563">
-62.756 -13.188 7.91 -3.564 0.909
</ShiftedChebyshev>
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<QuasiParabolic ID="2" StartDistance="6501.766" EndDistance="6523.532" A="0.0" B="-2411.8152" C="0.72394556" Error="0.00397"/>
<QuasiParabolic ID="3" StartDistance="6523.532" EndDistance="6543.0" A="5.00938539E11" B="-1.54357216E8" C="11890.808" Error="0.00465"/>
<QuasiParabolic ID="4" StartDistance="6543.0" EndDistance="6549.0" A="5.3073989E12" B="-1.6235488E9" C="124162.83" Error="0.00912"/>
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</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="65.298" Depth="0.346"/>
<TopsideChapman PeakHeight="245.987" PeakDensity="97270.47" PeakScaleHeight="26.19" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
