<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-09 -099 06:30:00.000"
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" >
2026.04.09 (099) 06:30:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.97" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202609904090630001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.450" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.265" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.264" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.475" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.475" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.800" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.375" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="350.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.475" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.475" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="291.783" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="263.181" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.190" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="41.049" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.353" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="21.242" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="41.770" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.930" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="40">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.475 2.5 2.525 2.55 2.575 2.6 2.625 2.65 2.675 2.7 2.725 2.75 2.775 2.8 2.825 2.85 2.875 2.9 2.925 2.95 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
285.000 285.938 286.875 287.813 288.750 289.688 290.625 291.563 292.500 295.000 295.000 296.000 297.000 298.000 299.000 300.000 302.375 304.750 307.125 309.500 311.875 314.250 316.625 319.000 321.375 323.750 326.125 328.500 330.875 333.250 335.625 338.000 340.375 342.750 345.125 347.500 350.000 357.500 360.000 370.000
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 0 0 0 0 0 0 0 69 66 69 0 0 0 0 45 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 63 105 105 90 87
</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="525">
<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="3.45" PeakHeight="291.783" Num="5" zHalfNm="263.181" Error="1.376">
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</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="11" EarthRadius="6370.0">
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<QuasiParabolic ID="2" StartDistance="6515.714" EndDistance="6551.427" A="0.0" B="-680.70715" C="0.14450736" Error="0.0151"/>
<QuasiParabolic ID="3" StartDistance="6551.427" EndDistance="6585.0" A="4.3174625E10" B="-1.3247185E7" C="1016.1665" Error="0.0151"/>
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<QuasiParabolic ID="5" StartDistance="6586.0" EndDistance="6588.0" A="8.1823888E12" B="-2.48485709E9" C="188652.7" Error="0.0197"/>
<QuasiParabolic ID="6" StartDistance="6588.0" EndDistance="6591.0" A="1.15744493E12" B="-3.52208768E8" C="26794.145" Error="0.0017"/>
<QuasiParabolic ID="7" StartDistance="6591.0" EndDistance="6600.0" A="2.60076706E12" B="-7.9017632E8" C="60018.812" Error="0.0112"/>
<QuasiParabolic ID="8" StartDistance="6600.0" EndDistance="6631.0" A="6.7857867E12" B="-2.05836403E9" C="156093.64" Error="0.00999"/>
<QuasiParabolic ID="9" StartDistance="6631.0" EndDistance="6650.0" A="-2.35832459E11" B="5.945196E7" C="-3596.9065" Error="0.0106"/>
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<ProfileValley Model="ULCAR" Width="107.141" Depth="0.154"/>
<TopsideChapman PeakHeight="291.783" PeakDensity="147673.7" PeakScaleHeight="21.242" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
