<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-14 -104 21:30:00.000"
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="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: 75% PACIFIC flags: Multiple candidates for F2x cusp, Unidentified traces above foF2</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.14 (104) 21:30:00</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">
FF202610404142130001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="6.875" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.962" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="27.242" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.200" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.200" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="7.225" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="197.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="197.500" 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="6.700" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="247.809" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.831" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.200" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.200" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="214.128" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="195.390" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="7.111" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="26.697" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="3.546" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.135" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="25.500" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.440" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="188">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
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</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
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</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="374">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
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</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
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</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.831" PeakHeight="110.0" Num="3" Error="0.0">
-25.612 7.082 -0.975
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.831" EndFrequency="6.875" PeakHeight="214.128" Num="5" zHalfNm="195.39" Error="0.395">
-44.579 2.847 -1.369 0.174 0.049
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="9" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6460.063" EndDistance="6480.001" A="-3.04453334E12" B="9.3967078E8" C="-72504.77" Error="0.0195"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6500.417" A="-1.58074903E12" B="4.87885504E8" C="-37644.797" Error="7.53E-4"/>
<QuasiParabolic ID="2" StartDistance="6500.417" EndDistance="6520.833" A="0.0" B="15931.713" C="-2.131691" Error="0.0242"/>
<QuasiParabolic ID="3" StartDistance="6520.833" EndDistance="6540.0" A="-4.1629938E10" B="1.1975407E7" C="-857.13464" Error="0.0253"/>
<QuasiParabolic ID="4" StartDistance="6540.0" EndDistance="6542.0" A="4.8294022E13" B="-1.47695698E10" C="1129230.4" Error="0.0268"/>
<QuasiParabolic ID="5" StartDistance="6542.0" EndDistance="6550.0" A="4.0876961E13" B="-1.25020477E10" C="955925.5" Error="0.0243"/>
<QuasiParabolic ID="6" StartDistance="6550.0" EndDistance="6557.0" A="1.11120753E14" B="-3.39505357E10" C="2593214.5" Error="0.0092"/>
<QuasiParabolic ID="7" StartDistance="6557.0" EndDistance="6570.0" A="5.9921828E13" B="-1.83339643E10" C="1402382.6" Error="0.0334"/>
<QuasiParabolic ID="8" StartDistance="6570.0" EndDistance="6584.128" A="-1.42254904E14" B="4.3211461E10" C="-3281439.8" Error="0.0116"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="61.25" Depth="0.266"/>
<TopsideChapman PeakHeight="214.128" PeakDensity="586422.1" PeakScaleHeight="14.135" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
