<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-26 -146 05:20:00.000"
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 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" >
2026.05.26 (146) 05:20:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.22" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.99" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="75.82641" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202614605260520001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.625" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.611" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.089" 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="4.075" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="222.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="222.500" 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="0.125" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.450" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="280.947" 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="/" />
<URSI ID="92" Val="248.567" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="219.794" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.789" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="40.850" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.502" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="22.250" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="34.240" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.890" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="64">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.05 2.075 2.1 2.125 2.15 2.175 2.2 2.225 2.25 2.275 2.3 2.325 2.35 2.375 2.4 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 2.825 2.85 2.875 2.9 2.925 2.95 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
222.500 222.500 225.000 225.000 225.000 225.000 225.000 225.000 227.500 227.500 227.500 227.500 227.500 230.000 230.000 230.000 230.000 232.500 232.500 232.500 232.500 235.000 235.000 235.000 237.500 237.500 237.500 237.500 240.000 240.000 242.500 242.500 242.500 243.333 244.167 245.000 247.500 247.500 247.500 250.000 252.500 252.500 255.000 255.000 255.000 257.500 260.000 261.115 262.353 263.734 265.284 267.039 269.040 271.342 274.021 277.176 280.947 285.534 291.234 298.506 308.107 321.368 340.875 372.400
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
81 84 78 81 84 84 84 72 69 57 57 57 57 78 81 87 84 72 72 72 72 72 75 72 72 72 75 72 75 63 60 48 48 0 0 81 81 87 84 84 81 84 78 81 78 0 90 93 96 81 81 90 90 93 90 90 93 81 78 81 78 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="501">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
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<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
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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="3.625" PeakHeight="248.567" Num="5" zHalfNm="219.794" Error="0.927">
-68.111 14.008 -8.51 3.528 -0.732
</ShiftedChebyshev>
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<QuasiParabolicList Num="9" EarthRadius="6370.0">
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<QuasiParabolic ID="3" StartDistance="6532.5" EndDistance="6556.0" A="8.4459307E10" B="-2.5945652E7" C="1992.6252" Error="0.0183"/>
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</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="78.75" Depth="0.154"/>
<TopsideChapman PeakHeight="248.567" PeakDensity="163035.05" PeakScaleHeight="22.25" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
