<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-03-30 -089 05:25:00.000"
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 22 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 70% PACIFIC flags: F2 cusps do not match</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.03.30 (089) 05:25:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.18" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.97" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="82.25368" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202608903300525001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.200" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.211" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.488" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.375" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.375" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.300" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="307.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="307.500" 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="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="4.075" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="355.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.375" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.375" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="300.747" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="271.741" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.832" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="41.963" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="2.030" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="21.528" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="42.980" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.860" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="34">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 3.725 3.75 3.775 3.8 3.825 3.85 3.875 3.9 3.925 3.95 3.975 4.0 4.025 4.05 4.075 4.1 4.125 4.15 4.175 4.2
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
307.500 308.750 310.000 310.000 312.500 314.125 315.750 317.375 319.000 320.625 322.250 323.875 325.500 327.125 328.750 330.375 332.000 333.625 335.250 336.875 338.500 340.125 341.750 343.375 345.000 347.500 350.000 352.500 355.000 360.000 365.000 367.500 371.667 377.482
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
63 63 102 99 75 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 87 0 87 0 96 0 96 96 0 0
</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="552">
<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">
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</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.354" EndFrequency="4.2" PeakHeight="300.747" Num="5" zHalfNm="271.741" Error="1.317">
-78.838 -4.291 2.895 -1.611 0.772
</ShiftedChebyshev>
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<QuasiParabolic ID="2" StartDistance="6516.558" EndDistance="6553.116" A="0.0" B="-762.5403" C="0.15705304" Error="0.0173"/>
<QuasiParabolic ID="3" StartDistance="6553.116" EndDistance="6585.0" A="4.3092107E10" B="-1.3215991E7" C="1013.3253" Error="0.0173"/>
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<ProfileValley Model="ULCAR" Width="109.674" Depth="0.154"/>
<TopsideChapman PeakHeight="300.747" PeakDensity="218858.56" PeakScaleHeight="21.528" />
</Profile>
</ProfileList>
</SAORecord>
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