<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-03-20 -079 07:25:00.000"
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: 90% PACIFIC flags: One of F2 cusps was derived from the other</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.03.20 (079) 07:25:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.18" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.97" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="82.25368" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202607903200725001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.750" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.233" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="8.891" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.625" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.625" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.125" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="342.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="342.500" 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="0.200" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.675" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="353.278" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.625" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.625" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="290.564" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="258.609" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.951" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="45.548" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.969" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="23.866" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="46.450" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.960" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="6">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.625 2.65 2.675 2.7 2.725 2.75
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
342.500 347.500 353.278 359.941 367.707 376.876
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
63 63 63 60 0 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="546">
<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="2.75" PeakHeight="290.564" Num="5" zHalfNm="258.609" Error="0.855">
-77.904 -1.883 1.227 -0.726 0.318
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="9" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6460.0205" EndDistance="6480.001" A="-5.5027394E11" B="1.69837632E8" C="-13104.63" Error="0.0016"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6513.865" A="-1.3248684E11" B="4.0891E7" C="-3155.0444" Error="0.0017"/>
<QuasiParabolic ID="2" StartDistance="6513.865" EndDistance="6547.731" A="0.0" B="-715.0427" C="0.14980839" Error="0.0151"/>
<QuasiParabolic ID="3" StartDistance="6547.731" EndDistance="6580.0" A="4.5863342E10" B="-1.407973E7" C="1080.6084" Error="0.0151"/>
<QuasiParabolic ID="4" StartDistance="6580.0" EndDistance="6584.0" A="3.35409814E12" B="-1.01962221E9" C="77489.61" Error="0.0142"/>
<QuasiParabolic ID="5" StartDistance="6584.0" EndDistance="6592.0" A="1.16899722E12" B="-3.55861312E8" C="27082.494" Error="0.00978"/>
<QuasiParabolic ID="6" StartDistance="6592.0" EndDistance="6631.0" A="3.45730397E12" B="-1.05012915E9" C="79742.375" Error="0.0188"/>
<QuasiParabolic ID="7" StartDistance="6631.0" EndDistance="6648.0" A="-1.83497471E12" B="5.4609427E8" C="-40618.312" Error="0.00585"/>
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</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="101.596" Depth="0.154"/>
<TopsideChapman PeakHeight="290.564" PeakDensity="93827.55" PeakScaleHeight="23.866" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
