<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-11 -131 01:50:00.000"
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: 45% PACIFIC flags: F2o cusp not found, Multiple candidates for F2x cusp, One of F2 cusps was derived from the other, F2O model cusp does not fit trace</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.11 (131) 01:50:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.21" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.99" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="75.82641" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202613105110150001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.975" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.281" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="9.760" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.775" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.775" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.300" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="330.338" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="330.338" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.900" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="345.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.775" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.775" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="295.315" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="265.505" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.254" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="42.624" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.062" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="22.462" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="42.840" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.080" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="9">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.775 2.8 2.825 2.85 2.875 2.9 2.925 2.95 2.975
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
330.338 331.961 334.002 337.500 340.000 345.000 352.500 367.500 395.277
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 0 0 0 0 0 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 4.6875 -1.5625 -1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="536">
<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="2.975" PeakHeight="295.315" Num="5" zHalfNm="265.505" Error="0.221">
-73.842 0.266 -0.166 0.099 -0.048
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="11" 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="6517.208" A="-1.09861356E11" B="3.3907824E7" C="-2616.2192" Error="0.00178"/>
<QuasiParabolic ID="2" StartDistance="6517.208" EndDistance="6554.416" A="0.0" B="359.30786" C="-0.015095623" Error="0.00691"/>
<QuasiParabolic ID="3" StartDistance="6554.416" EndDistance="6557.0" A="-4.67702022E11" B="1.42593856E8" C="-10868.521" Error="0.0196"/>
<QuasiParabolic ID="4" StartDistance="6557.0" EndDistance="6582.0" A="4.9435316E10" B="-1.5142108E7" C="1159.5371" Error="0.0189"/>
<QuasiParabolic ID="5" StartDistance="6582.0" EndDistance="6590.0" A="-3.25898895E10" B="9781990.0" C="-733.81573" Error="0.00443"/>
<QuasiParabolic ID="6" StartDistance="6590.0" EndDistance="6594.0" A="3.86825637E12" B="-1.1740864E9" C="89089.27" Error="0.0165"/>
<QuasiParabolic ID="7" StartDistance="6594.0" EndDistance="6604.0" A="2.13447515E12" B="-6.4822003E8" C="49214.67" Error="0.0129"/>
<QuasiParabolic ID="8" StartDistance="6604.0" EndDistance="6640.0" A="5.0723359E12" B="-1.53794163E9" C="116577.0" Error="0.0188"/>
<QuasiParabolic ID="9" StartDistance="6640.0" EndDistance="6654.0" A="-5.5853019E12" B="1.67219008E9" C="-125149.8" Error="0.00282"/>
<QuasiParabolic ID="10" StartDistance="6654.0" EndDistance="6665.315" A="-1.29154102E13" B="3.8754089E9" C="-290705.75" Error="0.00108"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="111.624" Depth="0.154"/>
<TopsideChapman PeakHeight="295.315" PeakDensity="109809.24" PeakScaleHeight="22.462" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
