<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-02 -122 00:25:00.000"
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 F2x cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.02 (122) 00:25:00</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="75.82641" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202612205020025001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.300" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.595" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="15.460" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.425" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.425" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.675" 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="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="4.075" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="280.755" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.425" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.425" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="240.742" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="212.421" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.789" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="40.146" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="2.053" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="21.656" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="34.070" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.650" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="76">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
210.000 210.000 212.500 212.500 212.500 212.500 212.500 213.333 214.167 215.000 215.000 215.000 217.500 217.500 217.500 217.500 217.500 217.500 218.214 218.929 219.643 220.357 221.071 221.786 222.500 222.500 222.500 223.409 224.318 225.227 226.136 227.045 227.955 228.864 229.773 230.682 231.591 232.500 232.500 233.750 235.000 236.250 237.500 238.750 240.000 240.000 241.250 242.500 244.333 246.167 248.000 249.833 251.667 253.500 255.333 257.167 259.000 260.833 262.667 264.500 266.333 268.167 270.000 272.500 275.000 277.500 280.755 284.340 288.309 292.726 297.672 303.248 309.582 316.840 325.241 335.078
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
60 60 60 0 72 72 72 0 0 72 72 72 69 0 60 63 48 48 0 0 0 0 0 0 84 0 93 0 0 0 0 0 0 0 0 0 0 81 72 0 69 0 69 0 90 90 0 78 0 0 0 0 0 0 0 0 0 0 0 0 0 0 75 0 0 99 0 99 99 96 90 93 93 90 0 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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</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="0.354" PeakHeight="110.0" Num="3" Error="0.0">
-18.791 2.435 -0.142
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.354" EndFrequency="4.3" PeakHeight="240.742" Num="5" zHalfNm="212.421" Error="1.719">
-68.549 12.68 -8.049 3.144 0.032
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="8" 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="6503.333" A="-2.72938779E11" B="8.424036E7" C="-6499.9023" Error="0.00135"/>
<QuasiParabolic ID="2" StartDistance="6503.333" EndDistance="6526.667" A="0.0" B="4156.643" C="-0.5975126" Error="0.0543"/>
<QuasiParabolic ID="3" StartDistance="6526.667" EndDistance="6547.0" A="-1.39333571E10" B="4110878.0" C="-302.72513" Error="0.0543"/>
<QuasiParabolic ID="4" StartDistance="6547.0" EndDistance="6549.0" A="4.38226728E12" B="-1.33885555E9" C="102260.77" Error="0.01"/>
<QuasiParabolic ID="5" StartDistance="6549.0" EndDistance="6565.0" A="5.0108904E12" B="-1.53083098E9" C="116917.62" Error="0.0613"/>
<QuasiParabolic ID="6" StartDistance="6565.0" EndDistance="6579.0" A="4.247151E13" B="-1.29430538E10" C="986089.2" Error="0.0708"/>
<QuasiParabolic ID="7" StartDistance="6579.0" EndDistance="6610.742" A="-2.17976784E13" B="6.594624E9" C="-498762.4" Error="0.00968"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="70.0" Depth="0.15"/>
<TopsideChapman PeakHeight="240.742" PeakDensity="229404.47" PeakScaleHeight="21.656" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
