<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-28 -148 01:25:00.000"
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: 95% PACIFIC flags: Multiple candidates for F2o cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.28 (148) 01:25:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.22" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-16.00" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="75.82641" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202614805280125001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.925" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.517" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.803" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.950" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.950" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.350" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="240.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="240.000" 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="3.675" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="286.126" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.950" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.950" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="262.955" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="236.246" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.433" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="38.080" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.649" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="20.671" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="33.490" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.360" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="40">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 3.65 3.675 3.7 3.725 3.75 3.775 3.8 3.825 3.85 3.875 3.9 3.925
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
240.000 240.000 242.500 242.500 242.500 245.000 245.000 247.500 247.500 250.000 250.000 252.500 252.500 255.000 255.000 256.250 257.500 262.500 262.500 262.500 267.500 267.500 267.500 270.000 272.500 274.629 277.005 279.672 282.688 286.126 290.081 294.679 300.091 306.555 314.410 324.158 336.578 352.944 375.492 408.537
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 69 66 93 93 93 93 90 96 90 90 87 90 84 84 0 84 84 93 99 93 90 87 90 90 87 87 108 105 78 78 75 69 0 0 0 81 60 54 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="495">
<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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</Tabulated>
<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="3.925" PeakHeight="262.955" Num="5" zHalfNm="236.246" Error="2.705">
-67.018 9.196 -6.684 3.448 -0.897
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="10" 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="6510.333" A="-1.64983013E11" B="5.0920684E7" C="-3928.9397" Error="0.00156"/>
<QuasiParabolic ID="2" StartDistance="6510.333" EndDistance="6540.667" A="0.0" B="1005.9425" C="-0.114491776" Error="0.0173"/>
<QuasiParabolic ID="3" StartDistance="6540.667" EndDistance="6570.0" A="3.5683217E10" B="-1.1007694E7" C="848.8979" Error="0.0173"/>
<QuasiParabolic ID="4" StartDistance="6570.0" EndDistance="6573.0" A="7.5796311E12" B="-2.30749107E9" C="175619.31" Error="0.00555"/>
<QuasiParabolic ID="5" StartDistance="6573.0" EndDistance="6581.0" A="3.95977137E12" B="-1.20605798E9" C="91834.67" Error="0.0118"/>
<QuasiParabolic ID="6" StartDistance="6581.0" EndDistance="6587.0" A="7.6278189E12" B="-2.32079667E9" C="176528.38" Error="0.00212"/>
<QuasiParabolic ID="7" StartDistance="6587.0" EndDistance="6595.0" A="1.65005587E13" B="-5.0148122E9" C="381023.25" Error="0.0137"/>
<QuasiParabolic ID="8" StartDistance="6595.0" EndDistance="6604.0" A="3.9585204E13" B="-1.20154624E10" C="911777.6" Error="0.00458"/>
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</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="91.0" Depth="0.154"/>
<TopsideChapman PeakHeight="262.955" PeakDensity="191136.78" PeakScaleHeight="20.671" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
