<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-12 -132 02:55:00.000"
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 F2x cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.12 (132) 02:55:00</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">
FF202613205120255001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.075" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.573" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="10.986" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.925" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.925" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.325" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="285.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="285.000" 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="0.025" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.925" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="285.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.925" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.925" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="290.264" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="261.734" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.838" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="40.859" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.099" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="22.018" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="38.460" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.830" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="7">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.925 2.95 2.975 3.0 3.025 3.05 3.075
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
285.000 296.679 311.667 331.598 359.405 400.903 469.506
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
51 0 0 0 0 72 75
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="527">
<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="3.075" PeakHeight="290.264" Num="5" zHalfNm="261.734" Error="2.921">
-70.591 5.578 -3.84 2.285 -1.052
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="10" 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="6517.548" A="-1.07887763E11" B="3.3298694E7" C="-2569.2183" Error="0.00178"/>
<QuasiParabolic ID="2" StartDistance="6517.548" EndDistance="6555.096" A="0.0" B="-395.42804" C="0.1007112" Error="0.00969"/>
<QuasiParabolic ID="3" StartDistance="6555.096" EndDistance="6592.0" A="3.6020654E10" B="-1.1056622E7" C="848.4735" Error="0.00969"/>
<QuasiParabolic ID="4" StartDistance="6592.0" EndDistance="6593.0" A="7.1930494E12" B="-2.18248525E9" C="165550.28" Error="2.36E-10"/>
<QuasiParabolic ID="5" StartDistance="6593.0" EndDistance="6604.0" A="3.71705617E12" B="-1.12803558E9" C="85582.914" Error="0.00518"/>
<QuasiParabolic ID="6" StartDistance="6604.0" EndDistance="6614.0" A="4.5529862E12" B="-1.38119437E9" C="104749.99" Error="0.00636"/>
<QuasiParabolic ID="7" StartDistance="6614.0" EndDistance="6626.0" A="1.02404477E13" B="-3.10101939E9" C="234763.98" Error="0.00769"/>
<QuasiParabolic ID="8" StartDistance="6626.0" EndDistance="6635.0" A="8.1754954E12" B="-2.47773158E9" C="187730.5" Error="0.00949"/>
<QuasiParabolic ID="9" StartDistance="6635.0" EndDistance="6660.264" A="-1.16995643E13" B="3.51324339E9" C="-263737.1" Error="0.0045"/>
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<ProfileValley Model="ULCAR" Width="112.644" Depth="0.154"/>
<TopsideChapman PeakHeight="290.264" PeakDensity="117315.445" PeakScaleHeight="22.018" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
