<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-24 -297 08:25:00.000"
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: 95% PACIFIC flags: Multiple candidates for F2x cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.10.24 (297) 08:25:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.32" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-16.06" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="62.486557" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202629710240825001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="5.575" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.468" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="19.333" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="4.575" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="4.575" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="5.850" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="267.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="267.500" 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="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="5.325" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="303.482" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.872" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="4.575" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="4.575" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="254.794" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="222.713" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="4.443" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="45.352" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="3.991" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="23.893" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="46.820" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.930" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="41">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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<RangeList Type="float" Units="km" Description="Group Range" >
267.500 267.500 267.500 270.000 270.000 270.000 272.500 272.500 275.000 275.000 275.000 277.500 277.500 277.500 279.167 280.833 282.500 282.500 283.750 285.000 287.500 287.500 290.000 292.500 292.500 292.500 295.000 297.500 299.297 301.281 303.482 305.938 308.696 311.817 315.375 319.471 324.236 329.848 336.555 344.712 354.848
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
81 84 69 72 0 96 72 72 81 84 84 81 72 69 0 0 69 69 0 93 90 90 81 78 105 105 81 81 81 81 81 81 69 66 90 90 66 63 87 87 87
</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="568">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
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<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.872" PeakHeight="110.0" Num="3" Error="0.0">
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<ProfileValley Model="ULCAR" Width="69.469" Depth="0.365"/>
<TopsideChapman PeakHeight="254.794" PeakDensity="385615.7" PeakScaleHeight="23.893" />
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