<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-16 -136 10:30:00.000"
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 33 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 60% PACIFIC flags: Multiple candidates for F2x cusp, Multiple candidates for F2o cusp, One of F2 cusps was derived from the other, Unidentified traces above foF2</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.16 (136) 10:30:00</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">
FF202613605161030001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="5.200" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.648" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="18.968" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.025" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.025" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="5.675" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="247.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="247.500" 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="5.175" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="298.530" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="1.593" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.025" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.025" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="228.729" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="195.418" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="4.833" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="41.474" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="3.817" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="24.063" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="63.700" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.000" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="88">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
247.500 247.500 247.500 247.500 247.500 247.500 247.500 247.500 250.000 250.000 250.000 250.000 250.000 250.000 250.000 252.500 252.500 252.500 252.500 252.500 252.500 252.500 252.500 252.500 252.500 255.000 255.000 255.000 255.000 255.000 255.000 255.000 255.000 255.000 257.500 257.500 257.500 257.500 257.500 257.500 257.500 257.500 257.500 257.500 262.500 262.500 262.500 262.500 262.500 262.500 265.000 265.000 265.000 267.500 267.500 267.500 267.500 267.500 267.500 268.750 270.000 270.000 272.500 272.500 272.500 272.500 273.750 275.000 276.250 277.500 278.750 280.000 280.000 280.000 280.000 282.500 283.750 285.000 286.250 287.500 287.500 290.000 292.500 292.500 292.500 295.000 298.530 331.967
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 66 69 69 69 69 66 66 78 81 69 69 69 69 81 72 84 81 60 69 72 72 60 57 69 69 54 60 57 51 57 0 69 75 84 78 90 0 66 66 78 81 69 69 81 84 81 72 75 75 72 72 72 63 69 72 48 48 57 57 84 81 93 96 93 93 69 72 69 72 60 69 78 75 108 108 93 90 84 93 90 90 93 93 90 90 93 0
</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 3.125 3.125 3.125 -3.125 -3.125 3.125 3.125 -3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 -3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 -3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 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="540">
<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="1.593" PeakHeight="110.0" Num="3" Error="0.0">
-28.331 10.15 -1.922
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="1.593" EndFrequency="5.2" PeakHeight="228.729" Num="5" zHalfNm="195.418" Error="1.721">
-67.137 -26.418 9.117 0.56 -0.775
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="14" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6459.8447" EndDistance="6480.001" A="-1.09482523E13" B="3.37909018E9" C="-260729.73" Error="0.00579"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6491.359" A="-6.5739791E12" B="2.02900595E9" C="-156556.56" Error="4.68E-4"/>
<QuasiParabolic ID="2" StartDistance="6491.359" EndDistance="6502.717" A="0.0" B="10363.327" C="0.46178073" Error="0.00182"/>
<QuasiParabolic ID="3" StartDistance="6502.717" EndDistance="6504.0" A="-5.7532844E13" B="1.76914493E10" C="-1360035.8" Error="0.00302"/>
<QuasiParabolic ID="4" StartDistance="6504.0" EndDistance="6505.0" A="6.9441031E13" B="-2.13534065E10" C="1641567.6" Error="1.1E-10"/>
<QuasiParabolic ID="5" StartDistance="6505.0" EndDistance="6506.0" A="-6.8746945E13" B="2.11332874E10" C="-1624127.6" Error="0.0"/>
<QuasiParabolic ID="6" StartDistance="6506.0" EndDistance="6507.0" A="6.2994218E13" B="-1.93650708E10" C="1488257.9" Error="1.06E-10"/>
<QuasiParabolic ID="7" StartDistance="6507.0" EndDistance="6509.0" A="-2.23454146E13" B="6.8650291E9" C="-527271.6" Error="0.00661"/>
<QuasiParabolic ID="8" StartDistance="6509.0" EndDistance="6513.0" A="7.0326655E12" B="-2.16188134E9" C="166145.95" Error="0.00657"/>
<QuasiParabolic ID="9" StartDistance="6513.0" EndDistance="6516.0" A="4.2024904E13" B="-1.29072333E10" C="991061.6" Error="0.00953"/>
<QuasiParabolic ID="10" StartDistance="6516.0" EndDistance="6541.0" A="-1.81710389E11" B="4.7528564E7" C="-3011.5364" Error="0.00789"/>
<QuasiParabolic ID="11" StartDistance="6541.0" EndDistance="6573.0" A="4.5042342E12" B="-1.38526298E9" C="106512.36" Error="0.00964"/>
<QuasiParabolic ID="12" StartDistance="6573.0" EndDistance="6593.0" A="1.15714891E13" B="-3.53565235E9" C="270089.8" Error="0.00826"/>
<QuasiParabolic ID="13" StartDistance="6593.0" EndDistance="6598.729" A="-9.650909E13" B="2.92508119E10" C="-2216370.5" Error="0.00184"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="34.076" Depth="0.158"/>
<TopsideChapman PeakHeight="228.729" PeakDensity="335483.88" PeakScaleHeight="24.063" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
