<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-22 -112 22:10:00.000"
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: 70% PACIFIC flags: Multiple candidates for F2x cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.22 (112) 22:10:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.20" 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">
FF202611204222210001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="27" >
<URSI ID="00" Val="3.950" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.652" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="14.425" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.000" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="30" Val="2.250" Name="foEs" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.325" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.350" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="210.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="210.000" Name="h`F2" Units="km" QL="/" DL="/" />
<URSI ID="34" Val="100.000" Name="h`Es" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.725" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="270.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.376" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.325" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.325" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="240.233" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="210.047" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="6.389" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<Custom Name="fminEs" Val="2.000" Description="Minimum frequency of Es-layer" Units="MHz" />
<URSI ID="94" Val="42.709" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.867" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="23.512" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="33.830" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="4.660" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="2">
<Trace Type="standard" Layer="F2" Polarization="O" Num="66">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 3.65 3.675 3.7 3.725 3.75 3.775 3.8 3.825 3.85 3.875 3.9 3.925 3.95
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
210.000 210.833 211.667 212.500 212.500 212.500 215.000 215.000 215.000 215.000 215.000 216.250 217.500 217.500 217.500 220.000 220.000 220.000 220.000 220.000 220.000 222.500 222.500 223.333 224.167 225.000 225.000 227.500 230.000 230.000 230.000 230.000 230.000 232.500 232.500 235.000 235.000 236.250 237.500 240.000 240.000 242.500 242.500 242.500 245.000 247.500 247.500 250.000 250.000 252.500 257.500 260.000 262.500 262.500 265.000 267.500 270.000 277.500 280.000 283.769 288.596 295.000 303.904 317.127 338.817 380.941
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
39 0 0 57 69 66 54 0 0 0 54 0 54 57 54 54 54 0 0 0 30 33 30 0 0 51 54 51 57 54 60 66 72 75 75 72 69 66 81 81 66 72 75 75 84 81 63 63 72 72 72 69 63 63 69 69 66 60 45 0 60 63 69 75 69 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
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</TraceValueList>
</Trace>
<Trace Type="standard" Layer="Es" Polarization="O" Num="11">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.0 2.025 2.05 2.075 2.1 2.125 2.15 2.175 2.2 2.225 2.25
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
100.000 100.000 100.000 105.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
54 0 54 54 60 60 57 84 84 60 54
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
3.125 -3.125 -3.125 3.125 3.125 -3.125 3.125 3.125 3.125 -3.125 3.125
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="517">
<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="0.376" PeakHeight="110.0" Num="3" Error="0.0">
-19.523 2.766 -0.178
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.376" EndFrequency="3.95" PeakHeight="240.233" Num="5" zHalfNm="210.047" Error="1.013">
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</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="10" EarthRadius="6370.0">
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<QuasiParabolic ID="2" StartDistance="6503.333" EndDistance="6526.667" A="0.0" B="2544.7935" C="-0.34458238" Error="0.0285"/>
<QuasiParabolic ID="3" StartDistance="6526.667" EndDistance="6547.0" A="3.36125174E10" B="-1.0454005E7" C="812.7077" Error="0.0285"/>
<QuasiParabolic ID="4" StartDistance="6547.0" EndDistance="6549.0" A="2.42032679E12" B="-7.3955565E8" C="56494.824" Error="0.00453"/>
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<QuasiParabolic ID="6" StartDistance="6564.0" EndDistance="6568.0" A="1.82895604E13" B="-5.5769103E9" C="425132.94" Error="0.00997"/>
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</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="70.0" Depth="0.16"/>
<TopsideChapman PeakHeight="240.233" PeakDensity="193579.4" PeakScaleHeight="23.512" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
