<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-10 -130 20:55:00.000"
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 1 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 F2x cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.10 (130) 20:55:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.21" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.99" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="75.82641" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202613005102055001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="29" >
<URSI ID="00" Val="6.188" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="10" Val="4.260" Name="foF1" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.837" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="23.692" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.800" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.800" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="6.475" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="207.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="220.000" 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="5.925" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="256.235" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Custom Name="dlt foF2" Val="0.013" Description="Adjustment to the scaled foF2 during profile inversion" Units="MHz" />
<Modeled Name="foEp" Val="1.040" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.800" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="4.500" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="221.022" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="91" Val="197.936" Name="hmF1" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="198.596" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="6.908" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="28.801" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="95" Val="14.326" Name="yF1" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="3.552" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="17.237" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="29.620" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.480" Name="B1" QL="/" DL="/" />
<URSI ID="D2" Val="0.190" Name="D1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="2">
<Trace Type="standard" Layer="F2" Polarization="O" Num="77">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
4.275 4.3 4.325 4.35 4.375 4.4 4.425 4.45 4.475 4.5 4.525 4.55 4.575 4.6 4.625 4.65 4.675 4.7 4.725 4.75 4.775 4.8 4.825 4.85 4.875 4.9 4.925 4.95 4.975 5.0 5.025 5.05 5.075 5.1 5.125 5.15 5.175 5.2 5.225 5.25 5.275 5.3 5.325 5.35 5.375 5.4 5.425 5.45 5.475 5.5 5.525 5.55 5.575 5.6 5.625 5.65 5.675 5.7 5.725 5.75 5.775 5.8 5.825 5.85 5.875 5.9 5.925 5.95 5.975 6.0 6.025 6.05 6.075 6.1 6.125 6.15 6.175
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
227.500 227.500 227.500 227.500 225.000 225.000 223.750 222.500 221.250 220.000 220.000 220.000 220.000 222.500 222.500 222.500 222.500 222.500 222.500 225.000 225.000 230.000 230.000 230.000 227.500 227.500 227.500 227.500 227.500 227.500 227.500 227.500 227.500 230.000 230.000 230.000 230.000 230.000 232.500 232.500 232.500 232.500 235.000 235.000 235.000 235.000 237.500 237.500 237.500 237.500 240.000 240.000 240.000 242.500 242.500 245.000 245.000 245.000 247.500 247.500 250.000 250.000 252.500 252.500 253.601 254.837 256.235 257.829 259.665 261.800 264.314 267.320 270.975 275.517 281.313 288.964 299.531
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
48 0 0 51 60 60 0 42 0 42 54 54 78 75 87 90 78 78 66 60 75 69 69 66 90 93 0 84 84 84 87 87 84 84 81 81 84 84 87 90 90 90 90 93 93 93 90 93 99 90 81 87 87 84 78 84 87 90 90 90 90 93 90 93 93 90 93 93 93 93 90 84 96 99 84 84 78
</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="F1" Polarization="O" Num="59">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 3.975 4.0 4.025 4.05 4.075 4.1 4.125 4.15 4.175 4.2 4.225 4.25
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
207.500 207.500 207.500 207.500 207.500 207.500 207.500 207.500 207.500 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 212.500 212.500 210.000 210.000 210.000 210.000 210.000 210.000 210.000 212.500 212.500 212.500 212.500 212.500 212.500 212.500 212.500 212.500 212.500 212.500 212.500 212.500 213.542 214.583 215.625 216.667 217.708 218.750 219.792 220.833 221.875 222.917 223.958 225.000
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
27 0 0 0 0 48 48 51 51 57 63 63 63 78 78 66 81 84 84 84 78 87 90 93 96 75 75 69 66 69 69 66 57 54 66 63 60 48 48 48 45 57 60 51 57 81 78 60 0 0 0 90 96 75 69 0 0 51 51
</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="430">
<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="3" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="1.04" PeakHeight="110.0" Num="3" Error="0.0">
-26.677 8.185 -1.277
</ShiftedChebyshev>
<ShiftedChebyshev Region="F1" StartFrequency="1.04" EndFrequency="4.26" PeakHeight="197.936" Num="5" Error="0.0">
-25.306 -9.706 3.117 -0.027 -0.217
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="4.26" EndFrequency="6.188" PeakHeight="221.022" Num="5" zHalfNm="198.596" Error="1.247">
-22.866 -0.941 1.072 -0.596 0.245
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="8" EarthRadius="6370.0">
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<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6498.599" A="-2.51799378E12" B="7.7715859E8" C="-59964.86" Error="0.0016"/>
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<QuasiParabolic ID="3" StartDistance="6517.198" EndDistance="6535.0" A="-1.85549177E11" B="5.5697132E7" C="-4177.0527" Error="0.0264"/>
<QuasiParabolic ID="4" StartDistance="6535.0" EndDistance="6539.0" A="6.6274499E13" B="-2.02840269E10" C="1552037.5" Error="0.0424"/>
<QuasiParabolic ID="5" StartDistance="6539.0" EndDistance="6544.0" A="-9.8927714E12" B="3.01227853E9" C="-229298.0" Error="0.023"/>
<QuasiParabolic ID="6" StartDistance="6544.0" EndDistance="6577.0" A="2.95718942E13" B="-9.0490501E9" C="692258.25" Error="0.034"/>
<QuasiParabolic ID="7" StartDistance="6577.0" EndDistance="6591.022" A="-8.7384616E13" B="2.65162588E10" C="-2011505.5" Error="0.0146"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="55.797" Depth="0.271"/>
<TopsideChapman PeakHeight="221.022" PeakDensity="475078.72" PeakScaleHeight="17.237" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
