<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-08 -098 12:20:00.000"
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 11 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 90% PACIFIC flags: One of F2 cusps was derived from the other</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.08 (098) 12:20:00</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">
FF202609804081220001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="23" >
<URSI ID="00" Val="7.650" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.595" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="27.502" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="7.300" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="7.300" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="7.925" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="292.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="292.500" 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="88" Val="7.575" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="302.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="2.757" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="7.300" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="7.300" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="201.595" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="156.222" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="7.261" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="59.323" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="10.301" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="32.533" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="68.320" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.670" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="15">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
7.3 7.325 7.35 7.375 7.4 7.425 7.45 7.475 7.5 7.525 7.55 7.575 7.6 7.625 7.65
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
292.500 293.333 294.167 295.000 295.000 297.500 297.500 298.750 300.000 300.000 301.250 302.500 305.000 307.405 314.530
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 93 93 108 108 0 0 0 0 0 0 0 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="693">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
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<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="2.757" PeakHeight="110.0" Num="3" Error="0.0">
-29.977 12.386 -2.82
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="2.757" EndFrequency="7.65" PeakHeight="201.595" Num="5" zHalfNm="156.222" Error="2.978">
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</ShiftedChebyshev>
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<QuasiParabolic ID="7" StartDistance="6561.0" EndDistance="6571.595" A="-5.8347743E13" B="1.77575588E10" C="-1351025.9" Error="0.00196"/>
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<ProfileValley Model="ULCAR" Width="13.163" Depth="0.123"/>
<TopsideChapman PeakHeight="201.595" PeakDensity="726085.6" PeakScaleHeight="32.533" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
