<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-03-20 -079 06:55:00.000"
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" >
2026.03.20 (079) 06:55:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.18" 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">
FF202607903200655001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.475" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.660" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.719" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.175" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.175" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.875" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="215.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="215.000" 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="3.250" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="265.609" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.200" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.200" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="241.767" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="212.069" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.174" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="42.136" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.431" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="23.230" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="32.950" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="5.090" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="53">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
217.500 215.000 215.625 216.250 216.875 217.500 220.000 220.833 221.667 222.500 222.500 223.125 223.750 224.375 225.000 225.000 225.000 225.000 225.000 230.000 230.000 230.000 230.000 232.500 232.500 232.500 235.000 237.500 237.500 239.375 241.250 243.125 245.000 245.000 245.000 247.500 250.000 250.000 252.500 255.000 257.178 259.632 262.418 265.609 269.300 273.617 278.736 284.903 292.475 301.996 314.328 330.932 354.494
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
75 78 0 0 0 54 51 0 0 75 81 0 0 0 69 0 0 69 63 69 69 72 72 72 60 57 48 45 69 0 0 0 75 81 78 81 93 87 78 0 90 84 0 90 87 90 90 90 90 90 87 84 66
</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="505">
<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="3.475" PeakHeight="241.767" Num="5" zHalfNm="212.069" Error="1.287">
-68.961 17.788 -10.578 4.766 -1.282
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="10" EarthRadius="6370.0">
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<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6504.5" A="-2.52482355E11" B="7.7926656E7" C="-6012.734" Error="0.00135"/>
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<QuasiParabolic ID="3" StartDistance="6529.0" EndDistance="6553.0" A="9.2869992E10" B="-2.8543106E7" C="2193.1604" Error="0.0196"/>
<QuasiParabolic ID="4" StartDistance="6553.0" EndDistance="6554.0" A="1.24799649E13" B="-3.8091305E9" C="290655.5" Error="0.0"/>
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<QuasiParabolic ID="7" StartDistance="6571.0" EndDistance="6581.0" A="4.1804871E13" B="-1.27313756E10" C="969313.56" Error="0.0144"/>
<QuasiParabolic ID="8" StartDistance="6581.0" EndDistance="6591.0" A="-3.5662867E13" B="1.08114708E10" C="-819384.7" Error="0.0137"/>
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<ProfileValley Model="ULCAR" Width="73.5" Depth="0.154"/>
<TopsideChapman PeakHeight="241.767" PeakDensity="149821.66" PeakScaleHeight="23.23" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
