<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-03 -123 00:25:00.000"
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 11 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 100%</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.03 (123) 00:25:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.21" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.98" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="75.82641" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202612305030025001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.700" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.488" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="16.393" 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="4.950" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="237.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="237.500" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="4.600" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="313.372" 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="262.134" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="236.982" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.789" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="36.059" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="2.189" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="18.962" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="33.910" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.510" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="90">
<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 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 4.225 4.25 4.275 4.3 4.325 4.35 4.375 4.4 4.425 4.45 4.475 4.5 4.525 4.55 4.575 4.6 4.625 4.65 4.675 4.7
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
237.500 237.917 238.333 238.750 239.167 239.583 240.000 240.000 240.000 242.500 242.500 242.500 242.500 242.500 242.500 245.000 245.000 245.000 245.000 245.000 245.000 245.000 247.500 247.500 247.500 247.500 250.000 250.000 250.000 250.000 250.000 252.500 252.500 252.500 252.500 255.000 255.000 255.000 255.000 257.500 257.500 257.500 257.500 260.000 260.000 260.000 260.000 261.250 262.500 262.500 263.333 264.167 265.000 265.833 266.667 267.500 267.500 267.500 270.000 270.000 272.500 272.500 273.750 275.000 275.833 276.667 277.500 280.000 280.000 282.500 282.500 285.000 287.500 287.500 287.500 290.000 292.500 295.000 297.500 300.000 302.500 302.500 304.488 306.867 309.765 313.372 317.987 324.100 332.579 345.131
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
84 0 0 0 0 0 69 72 75 75 75 78 93 93 69 69 42 39 0 0 63 63 90 90 90 90 87 90 90 87 99 96 81 81 99 102 96 96 96 90 84 81 84 81 84 84 69 0 69 69 0 0 0 0 0 90 93 93 105 102 90 87 0 90 0 0 99 99 99 102 90 90 90 90 93 93 81 81 54 57 54 57 78 81 102 99 99 99 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="480">
<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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<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="4.7" PeakHeight="262.134" Num="5" zHalfNm="236.982" Error="1.066">
-65.547 4.303 -2.694 0.759 0.295
</ShiftedChebyshev>
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<ProfileValley Model="ULCAR" Width="89.25" Depth="0.154"/>
<TopsideChapman PeakHeight="262.134" PeakDensity="274069.47" PeakScaleHeight="18.962" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
