<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-08 -098 06:35:00.000"
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 F2o cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.08 (098) 06:35:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.97" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202609804080635001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.925" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.249" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="9.504" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.025" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.025" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.325" 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="0.125" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.800" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="340.520" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.025" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.025" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="293.316" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="259.372" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.161" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="48.467" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.174" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="26.154" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="44.610" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.930" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="37">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
275.000 277.500 277.500 278.750 280.000 282.500 282.500 283.750 285.000 287.500 287.500 289.375 291.250 293.125 295.000 295.000 300.000 300.000 302.500 302.500 302.500 305.000 307.500 310.000 312.500 315.000 317.859 321.118 324.870 329.235 334.376 340.520 347.993 357.279 369.127 384.767 406.370
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 0 78 75 66 0 66 0 0 0 0 0 63 66 0 63 63 69 69 66 66 66 66 66 66 69 66 69 54 57 39 0 0 0 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
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</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="587">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
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<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.354" PeakHeight="110.0" Num="3" Error="0.0">
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</ShiftedChebyshev>
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<ProfileValley Model="ULCAR" Width="106.793" Depth="0.154"/>
<TopsideChapman PeakHeight="293.316" PeakDensity="106149.195" PeakScaleHeight="26.154" />
</Profile>
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