<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-01 -121 03:30:00.000"
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" >
2026.05.01 (121) 03:30:00</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="75.82641" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202612105010330001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.750" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.319" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.448" 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="4.075" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="277.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="277.500" 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="3.525" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="318.306" 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="289.460" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="262.182" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.735" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="39.052" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.539" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="20.832" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="37.130" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.550" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="32">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 3.675 3.7 3.725 3.75
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
277.500 277.500 280.000 280.000 282.500 282.500 285.000 285.000 287.500 287.500 287.500 290.000 292.500 295.000 297.500 297.500 302.500 304.412 306.547 308.943 311.655 314.747 318.306 322.446 327.322 333.150 340.239 349.047 360.286 375.123 395.618 425.765
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 72 96 99 84 87 99 99 96 93 93 90 87 93 84 84 105 105 87 84 75 78 78 78 78 78 78 75 72 72 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="522">
<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="3.75" PeakHeight="289.46" Num="5" zHalfNm="262.182" Error="2.134">
-69.561 4.715 -3.453 1.807 -0.416
</ShiftedChebyshev>
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<QuasiParabolicList Num="8" EarthRadius="6370.0">
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<QuasiParabolic ID="2" StartDistance="6517.517" EndDistance="6555.035" A="0.0" B="2942.3252" C="-0.41140845" Error="0.0636"/>
<QuasiParabolic ID="3" StartDistance="6555.035" EndDistance="6589.0" A="1.34472986E9" B="-508100.56" C="46.254753" Error="0.0636"/>
<QuasiParabolic ID="4" StartDistance="6589.0" EndDistance="6590.0" A="-1.54606318E12" B="4.69186208E8" C="-35596.05" Error="0.0"/>
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<ProfileValley Model="ULCAR" Width="112.552" Depth="0.154"/>
<TopsideChapman PeakHeight="289.46" PeakDensity="174472.7" PeakScaleHeight="20.832" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
