<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-29 -119 05:05:00.000"
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" >
2026.04.29 (119) 05:05:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.20" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.98" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202611904290505001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.700" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.281" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.141" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.975" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.975" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.000" 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="0.150" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.500" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="328.616" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.975" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.975" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="294.293" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="265.242" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.383" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="41.634" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.596" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="22.136" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="40.110" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.400" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="30">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.975 3.0 3.025 3.05 3.075 3.1 3.125 3.15 3.175 3.2 3.225 3.25 3.275 3.3 3.325 3.35 3.375 3.4 3.425 3.45 3.475 3.5 3.525 3.55 3.575 3.6 3.625 3.65 3.675 3.7
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
285.000 285.000 287.500 287.500 290.000 290.000 292.500 292.500 292.500 295.000 297.500 302.500 305.000 305.000 305.000 310.000 312.500 315.000 317.500 320.679 324.344 328.616 333.659 339.702 347.076 356.274 368.069 383.743 405.583 438.122
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 75 84 81 78 84 84 87 87 81 108 102 78 78 81 84 84 84 78 78 75 69 69 78 75 66 0 0 0 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 10.9375 1.5625 -1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="546">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
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</AltitudeList>
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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="3.7" PeakHeight="294.293" Num="5" zHalfNm="265.242" Error="2.04">
-74.707 3.411 -2.947 1.579 -0.365
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="9" 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="6517.088" A="-1.10570455E11" B="3.4126684E7" C="-2633.1064" Error="0.00178"/>
<QuasiParabolic ID="2" StartDistance="6517.088" EndDistance="6554.176" A="0.0" B="-831.1704" C="0.1675728" Error="0.0189"/>
<QuasiParabolic ID="3" StartDistance="6554.176" EndDistance="6587.0" A="4.2665791E10" B="-1.3082149E7" C="1002.82715" Error="0.0189"/>
<QuasiParabolic ID="4" StartDistance="6587.0" EndDistance="6589.0" A="-4.24814281E11" B="1.28858064E8" C="-9771.441" Error="6.63E-4"/>
<QuasiParabolic ID="5" StartDistance="6589.0" EndDistance="6604.0" A="3.32234464E12" B="-1.00854029E9" C="76538.95" Error="0.0375"/>
<QuasiParabolic ID="6" StartDistance="6604.0" EndDistance="6614.0" A="6.0413869E12" B="-1.83199347E9" C="138883.98" Error="0.0134"/>
<QuasiParabolic ID="7" StartDistance="6614.0" EndDistance="6640.0" A="1.15865865E13" B="-3.5088E9" C="265645.9" Error="0.0353"/>
<QuasiParabolic ID="8" StartDistance="6640.0" EndDistance="6664.293" A="-1.7181226E13" B="5.1562035E9" C="-386839.34" Error="0.0136"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="111.264" Depth="0.154"/>
<TopsideChapman PeakHeight="294.293" PeakDensity="169851.11" PeakScaleHeight="22.136" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
