<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-14 -104 03:35:00.000"
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" >
2026.04.14 (104) 03:35:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" 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">
FF202610404140335001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.200" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.534" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="14.845" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.325" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.325" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.575" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="237.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="237.500" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="4.050" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="298.330" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" 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="258.608" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="233.682" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.519" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="35.604" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.740" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="18.931" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="32.840" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.760" 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" >
2.325 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 3.975 4.0 4.025 4.05 4.075 4.1 4.125 4.15 4.175 4.2
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
237.500 237.500 238.125 238.750 239.375 240.000 240.000 240.000 240.000 240.000 240.000 242.500 242.500 243.750 245.000 245.000 245.000 245.000 245.000 245.000 247.500 247.500 247.500 248.125 248.750 249.375 250.000 250.000 250.000 250.000 250.000 252.500 252.500 252.500 252.500 255.000 255.000 257.500 257.500 257.500 257.500 257.500 260.000 260.000 260.000 262.500 262.500 262.500 265.000 267.500 267.500 267.500 270.000 270.000 272.500 275.000 275.000 275.000 275.000 277.500 280.000 282.500 282.500 285.000 285.000 290.000 290.000 292.358 295.100 298.330 302.191 306.887 312.722 320.167 329.995 343.571
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
54 57 0 0 0 69 72 72 72 69 66 69 66 63 66 69 66 69 72 72 42 45 54 0 0 0 66 66 81 78 78 81 96 96 96 96 96 93 84 84 84 81 96 96 93 90 84 81 96 90 81 84 81 84 78 72 66 66 63 63 90 90 96 93 90 90 90 90 90 90 87 87 87 84 0 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
1.5625 1.5625 -1.5625 -1.5625 -1.5625 -1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 -1.5625 -1.5625 1.5625 1.5625 1.5625 1.5625 -1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 -1.5625 1.5625 1.5625 -1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 -1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 -1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 -1.5625 1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="469">
<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="4.2" PeakHeight="258.608" Num="5" zHalfNm="233.682" Error="0.743">
-63.08 6.074 -3.899 1.529 0.018
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="11" 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="6509.75" A="-1.71482022E11" B="5.2926548E7" C="-4083.7134" Error="0.00152"/>
<QuasiParabolic ID="2" StartDistance="6509.75" EndDistance="6539.5" A="0.0" B="224.65578" C="0.0055122487" Error="0.00335"/>
<QuasiParabolic ID="3" StartDistance="6539.5" EndDistance="6566.0" A="4.7443018E10" B="-1.4600122E7" C="1123.2577" Error="0.00335"/>
<QuasiParabolic ID="4" StartDistance="6566.0" EndDistance="6568.0" A="-5.42138073E11" B="1.64985952E8" C="-12552.197" Error="0.00244"/>
<QuasiParabolic ID="5" StartDistance="6568.0" EndDistance="6571.0" A="1.07575111E13" B="-3.27583283E9" C="249385.89" Error="0.0254"/>
<QuasiParabolic ID="6" StartDistance="6571.0" EndDistance="6573.0" A="-1.64620219E12" B="4.9945648E8" C="-37883.113" Error="0.0118"/>
<QuasiParabolic ID="7" StartDistance="6573.0" EndDistance="6583.0" A="6.3487822E12" B="-1.93321792E9" C="147167.42" Error="0.0164"/>
<QuasiParabolic ID="8" StartDistance="6583.0" EndDistance="6604.0" A="2.53492703E13" B="-7.7058104E9" C="585614.4" Error="0.0326"/>
<QuasiParabolic ID="9" StartDistance="6604.0" EndDistance="6618.0" A="-2.24713738E13" B="6.7765166E9" C="-510867.1" Error="0.00685"/>
<QuasiParabolic ID="10" StartDistance="6618.0" EndDistance="6628.608" A="-2.99186981E13" B="9.0271437E9" C="-680905.4" Error="3.52E-4"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="89.25" Depth="0.154"/>
<TopsideChapman PeakHeight="258.608" PeakDensity="218858.56" PeakScaleHeight="18.931" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
