<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-02-04 -035 02:25:00.000"
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="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 44 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 40% PACIFIC flags: Multiple candidates for F2x cusp, Multiple candidates for F2o cusp, F2 cusps do not match, Unidentified traces above foF2</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.02.04 (035) 02:25:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.15" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.95" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="85.88234" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202603502040225001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="23" >
<URSI ID="00" Val="6.875" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.401" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="23.382" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.950" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.950" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="277.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="277.500" 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="0.025" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="6.800" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="332.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.950" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.950" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="291.125" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="268.211" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="5.217" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="33.865" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="4.306" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="16.933" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="35.380" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.680" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="118">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
3.95 3.975 4.0 4.025 4.05 4.075 4.1 4.125 4.15 4.175 4.2 4.225 4.25 4.275 4.3 4.325 4.35 4.375 4.4 4.425 4.45 4.475 4.5 4.525 4.55 4.575 4.6 4.625 4.65 4.675 4.7 4.725 4.75 4.775 4.8 4.825 4.85 4.875 4.9 4.925 4.95 4.975 5.0 5.025 5.05 5.075 5.1 5.125 5.15 5.175 5.2 5.225 5.25 5.275 5.3 5.325 5.35 5.375 5.4 5.425 5.45 5.475 5.5 5.525 5.55 5.575 5.6 5.625 5.65 5.675 5.7 5.725 5.75 5.775 5.8 5.825 5.85 5.875 5.9 5.925 5.95 5.975 6.0 6.025 6.05 6.075 6.1 6.125 6.15 6.175 6.2 6.225 6.25 6.275 6.3 6.325 6.35 6.375 6.4 6.425 6.45 6.475 6.5 6.525 6.55 6.575 6.6 6.625 6.65 6.675 6.7 6.725 6.75 6.775 6.8 6.825 6.85 6.875
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
277.500 277.500 277.500 277.500 277.500 277.500 280.000 280.000 280.000 280.000 280.000 280.000 282.500 282.500 282.500 282.500 282.500 282.500 285.000 285.000 285.000 285.000 285.000 285.000 287.500 287.500 287.500 287.500 287.500 287.500 287.500 287.500 290.000 290.000 290.000 290.000 292.500 292.500 292.500 292.500 292.500 292.500 292.500 295.000 295.000 295.000 297.500 297.500 297.500 297.500 297.500 297.500 297.500 297.500 297.500 297.500 310.000 305.000 300.000 300.000 300.000 301.250 302.500 302.500 305.000 305.000 305.000 305.000 305.000 305.000 307.500 307.500 307.500 307.500 310.000 310.000 310.000 310.000 312.500 313.750 315.000 312.500 315.000 315.000 315.000 315.000 315.000 315.000 317.500 317.500 317.500 317.500 320.000 321.250 322.500 322.500 322.500 322.500 322.500 325.000 325.000 325.000 326.250 326.944 327.639 328.333 329.028 329.722 330.417 331.111 331.806 332.500 332.500 332.500 332.500 335.000 338.530 371.967
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
99 0 0 87 90 99 99 0 99 102 108 93 90 90 93 93 93 90 0 66 69 69 69 90 0 0 0 90 0 0 0 90 96 96 93 99 0 0 0 0 63 102 102 99 96 0 0 60 0 66 63 102 105 108 105 105 90 60 66 66 69 66 63 63 60 60 57 60 63 60 60 96 0 60 0 0 0 0 0 0 0 0 60 0 0 0 63 66 63 66 63 99 99 0 0 0 0 105 105 102 105 105 0 0 0 60 0 0 0 0 0 93 96 96 93 93 93 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 1.5625 -1.5625 1.5625 -1.5625 -1.5625 1.5625 -1.5625 -1.5625 -1.5625 -1.5625 1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 1.5625 -1.5625 -1.5625 -1.5625 1.5625 -1.5625 -1.5625 -1.5625 1.5625 -1.5625 -1.5625 1.5625 -1.5625 1.5625 -1.5625 -1.5625 -1.5625 1.5625 -1.5625 1.5625 -1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 -1.5625 -1.5625 -1.5625 1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 1.5625 -1.5625 1.5625 1.5625 -1.5625 -1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 -1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="497">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
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</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
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</ProfileValueList>
</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="6.875" PeakHeight="291.125" Num="5" zHalfNm="268.211" Error="1.103">
-71.195 -7.152 5.602 -2.78 0.973
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="12" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6460.0205" EndDistance="6480.001" A="-5.5027394E11" B="1.69837632E8" C="-13104.63" Error="0.0016"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6515.524" A="-1.20462393E11" B="3.7179752E7" C="-2868.6826" Error="0.00171"/>
<QuasiParabolic ID="2" StartDistance="6515.524" EndDistance="6551.049" A="0.0" B="449.58975" C="-0.02896671" Error="0.00845"/>
<QuasiParabolic ID="3" StartDistance="6551.049" EndDistance="6584.0" A="3.11735706E10" B="-9595253.0" C="738.3476" Error="0.00845"/>
<QuasiParabolic ID="4" StartDistance="6584.0" EndDistance="6585.0" A="-1.95552569E12" B="5.9389786E8" C="-45091.93" Error="0.0"/>
<QuasiParabolic ID="5" StartDistance="6585.0" EndDistance="6589.0" A="8.9522218E12" B="-2.71900928E9" C="206457.6" Error="0.0174"/>
<QuasiParabolic ID="6" StartDistance="6589.0" EndDistance="6591.0" A="-7.958878E11" B="2.39894592E8" C="-18076.021" Error="0.0121"/>
<QuasiParabolic ID="7" StartDistance="6591.0" EndDistance="6597.0" A="7.3414974E12" B="-2.22934682E9" C="169243.16" Error="0.00539"/>
<QuasiParabolic ID="8" StartDistance="6597.0" EndDistance="6606.0" A="1.54341663E13" B="-4.6827858E9" C="355194.28" Error="0.0144"/>
<QuasiParabolic ID="9" StartDistance="6606.0" EndDistance="6637.0" A="2.65640749E13" B="-8.0524227E9" C="610237.94" Error="0.0134"/>
<QuasiParabolic ID="10" StartDistance="6637.0" EndDistance="6653.0" A="1.64712415E13" B="-5.0110382E9" C="381114.47" Error="0.0136"/>
<QuasiParabolic ID="11" StartDistance="6653.0" EndDistance="6661.125" A="-1.62307317E14" B="4.8732705E10" C="-3657946.2" Error="0.00365"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="106.573" Depth="0.154"/>
<TopsideChapman PeakHeight="291.125" PeakDensity="586422.1" PeakScaleHeight="16.933" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
