<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-03-17 -076 08:20:00.000"
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" >
2026.03.17 (076) 08:20:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.17" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.97" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="82.25368" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202607603170820001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.575" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.217" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.502" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.325" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.325" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.050" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="335.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="335.000" 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="0.200" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.475" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="355.899" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.360" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.325" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.325" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="291.851" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="258.351" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.928" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="48.139" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.700" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="24.969" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="49.090" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.920" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="11">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
3.325 3.35 3.375 3.4 3.425 3.45 3.475 3.5 3.525 3.55 3.575
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
335.000 337.500 340.447 343.703 347.319 351.358 355.899 361.040 366.912 373.679 381.566
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
87 84 75 78 69 63 66 60 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 -9.375 -3.125
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="584">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
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<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.36" PeakHeight="110.0" Num="3" Error="0.0">
-19.004 2.523 -0.151
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.36" EndFrequency="3.575" PeakHeight="291.851" Num="5" zHalfNm="258.351" Error="1.176">
-86.943 -3.081 2.007 -1.141 0.539
</ShiftedChebyshev>
</ShiftedChebyshevList>
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<ProfileValley Model="ULCAR" Width="93.232" Depth="0.16"/>
<TopsideChapman PeakHeight="291.851" PeakDensity="158568.55" PeakScaleHeight="24.969" />
</Profile>
</ProfileList>
</SAORecord>
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