<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-15 -105 03:00:00.000"
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 22 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 85% PACIFIC flags: Multiple candidates for F2x cusp, One of F2 cusps was derived from the other</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.15 (105) 03:00:00</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">
FF202610504150300001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.250" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.302" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="10.731" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.475" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.475" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.600" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="275.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="275.000" 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="3.025" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="314.688" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.475" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.475" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="289.160" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="260.404" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.652" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="41.045" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.222" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="22.001" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="38.290" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.720" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="32">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
275.000 275.000 275.833 276.667 277.500 280.000 280.000 282.500 285.000 285.000 287.500 290.000 291.250 292.500 292.500 295.000 297.813 300.625 303.438 306.250 309.063 311.875 314.688 319.284 324.693 331.150 338.995 348.728 361.123 377.445 399.913 432.802
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
75 75 0 0 75 75 72 75 72 72 75 75 0 75 51 51 0 0 0 0 0 0 0 87 0 0 0 0 0 0 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="530">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
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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="3.25" PeakHeight="289.16" Num="5" zHalfNm="260.404" Error="2.376">
-70.591 6.116 -4.352 2.007 -0.294
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="9" 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="6517.349" A="-1.09038559E11" B="3.3653876E7" C="-2596.6243" Error="0.00177"/>
<QuasiParabolic ID="2" StartDistance="6517.349" EndDistance="6554.697" A="0.0" B="-2882.9438" C="0.48238537" Error="0.0639"/>
<QuasiParabolic ID="3" StartDistance="6554.697" EndDistance="6579.0" A="9.3514531E10" B="-2.8564194E7" C="2181.2874" Error="0.0639"/>
<QuasiParabolic ID="4" StartDistance="6579.0" EndDistance="6589.0" A="-1.3624728E11" B="4.1282836E7" C="-3127.0447" Error="0.0168"/>
<QuasiParabolic ID="5" StartDistance="6589.0" EndDistance="6599.0" A="3.21171961E12" B="-9.749463E8" C="73988.54" Error="0.0705"/>
<QuasiParabolic ID="6" StartDistance="6599.0" EndDistance="6612.0" A="4.4463979E12" B="-1.3491479E9" C="102341.445" Error="0.0433"/>
<QuasiParabolic ID="7" StartDistance="6612.0" EndDistance="6632.0" A="1.26884984E13" B="-3.84222131E9" C="290867.88" Error="0.0316"/>
<QuasiParabolic ID="8" StartDistance="6632.0" EndDistance="6659.16" A="-1.28248604E13" B="3.85179546E9" C="-289199.75" Error="0.0132"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="112.046" Depth="0.154"/>
<TopsideChapman PeakHeight="289.16" PeakDensity="131048.39" PeakScaleHeight="22.001" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
