<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-05 -095 06:15:00.000"
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: 90% PACIFIC flags: Multiple candidates for F2x cusp, Multiple candidates for F2o cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.05 (095) 06:15:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.97" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202609504050615001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.200" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.547" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="14.896" 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="4.625" 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="4.025" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="293.578" 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="260.699" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="232.193" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.265" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="40.471" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.994" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="22.035" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="33.760" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.930" 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" >
237.500 237.500 237.500 237.500 237.500 240.000 240.000 240.000 240.000 240.000 240.000 240.000 240.000 242.500 242.500 242.500 242.500 242.500 245.000 245.000 245.000 245.000 245.000 245.000 245.714 246.429 247.143 247.857 248.571 249.286 250.000 250.000 250.000 250.000 252.500 252.500 252.500 252.500 255.000 255.000 255.000 255.000 257.500 257.500 257.500 260.000 260.000 260.000 262.500 262.500 262.500 265.000 265.000 267.500 267.500 270.000 270.000 272.500 272.500 274.167 275.342 276.659 278.144 279.834 281.773 284.020 286.656 289.790 293.578 298.250 304.156 311.858 322.323 337.363 360.817 402.489
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
51 54 66 69 72 72 75 75 75 75 75 75 72 75 78 75 75 75 72 78 63 60 54 51 0 0 0 0 0 0 90 90 93 93 90 93 96 93 93 96 72 75 108 111 102 96 75 75 99 102 90 87 90 87 90 87 78 66 60 0 0 75 105 105 105 105 108 111 75 72 111 108 90 87 87 81
</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 -7.8125 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="520">
<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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</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="260.699" Num="5" zHalfNm="232.193" Error="0.936">
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</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="10" EarthRadius="6370.0">
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<QuasiParabolic ID="2" StartDistance="6509.75" EndDistance="6539.5" A="0.0" B="83.84189" C="0.027143478" Error="8.92E-4"/>
<QuasiParabolic ID="3" StartDistance="6539.5" EndDistance="6568.0" A="4.6040916E10" B="-1.4170555E7" C="1090.356" Error="0.00794"/>
<QuasiParabolic ID="4" StartDistance="6568.0" EndDistance="6573.0" A="5.8666569E12" B="-1.78658714E9" C="136018.53" Error="0.016"/>
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<QuasiParabolic ID="6" StartDistance="6580.0" EndDistance="6588.0" A="1.31985142E13" B="-4.01492813E9" C="305331.12" Error="0.0112"/>
<QuasiParabolic ID="7" StartDistance="6588.0" EndDistance="6601.0" A="4.3109145E13" B="-1.30952643E10" C="994488.44" Error="0.0157"/>
<QuasiParabolic ID="8" StartDistance="6601.0" EndDistance="6612.0" A="-3.52752E13" B="1.06539684E10" C="-804423.3" Error="0.00838"/>
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<ProfileValley Model="ULCAR" Width="89.25" Depth="0.154"/>
<TopsideChapman PeakHeight="260.699" PeakDensity="218858.56" PeakScaleHeight="22.035" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
