<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-09 -099 05:35:00.000"
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="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: F2x cusp not found, One of F2 cusps was derived from the other</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.09 (099) 05:35:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.97" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202609904090535001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.700" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.193" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="8.620" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.525" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.525" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="2.975" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="357.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="357.500" 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="0.025" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.700" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="377.319" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.525" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.525" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="302.160" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="269.559" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.369" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="46.362" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.947" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="24.005" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="48.400" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.810" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="8">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.525 2.55 2.575 2.6 2.625 2.65 2.675 2.7
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
357.500 360.000 362.500 365.000 367.500 370.447 373.703 377.319
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 0 0 66 0 0 66 66
</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 1.5625 -1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="558">
<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="2.7" PeakHeight="302.16" Num="5" zHalfNm="269.559" Error="2.053">
-79.406 -5.333 3.528 -2.08 0.875
</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="6516.581" A="-1.13634599E11" B="3.5072408E7" C="-2706.079" Error="0.00174"/>
<QuasiParabolic ID="2" StartDistance="6516.581" EndDistance="6553.163" A="0.0" B="733.89996" C="-0.07258143" Error="0.0147"/>
<QuasiParabolic ID="3" StartDistance="6553.163" EndDistance="6587.0" A="2.26323517E10" B="-6986950.5" C="539.2138" Error="0.0147"/>
<QuasiParabolic ID="4" StartDistance="6587.0" EndDistance="6595.0" A="2.0628827E12" B="-6.2646483E8" C="47561.977" Error="0.0334"/>
<QuasiParabolic ID="5" StartDistance="6595.0" EndDistance="6607.0" A="1.51277588E12" B="-4.59639424E8" C="34914.105" Error="0.0293"/>
<QuasiParabolic ID="6" StartDistance="6607.0" EndDistance="6618.0" A="4.13255939E12" B="-1.25267213E9" C="94928.69" Error="0.00822"/>
<QuasiParabolic ID="7" StartDistance="6618.0" EndDistance="6658.0" A="1.79108669E12" B="-5.4506477E8" C="41467.87" Error="0.032"/>
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</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="109.744" Depth="0.154"/>
<TopsideChapman PeakHeight="302.16" PeakDensity="90446.65" PeakScaleHeight="24.005" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
