<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-08 -128 01:05:00.000"
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: 90% PACIFIC flags: Multiple candidates for F2x cusp, Multiple candidates for F2o cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.08 (128) 01:05:00</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">
FF202612805080105001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.675" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.600" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="16.829" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.000" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.000" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="5.025" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="225.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="225.000" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="4.525" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="290.575" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.000" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.000" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="252.307" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="225.203" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.564" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="38.657" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="2.321" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="20.543" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="34.420" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.160" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="108">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.0 2.025 2.05 2.075 2.1 2.125 2.15 2.175 2.2 2.225 2.25 2.275 2.3 2.325 2.35 2.375 2.4 2.425 2.45 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
225.000 225.000 225.000 225.000 225.000 225.000 227.500 227.500 227.500 227.500 227.500 227.500 227.500 227.500 227.500 227.500 227.500 227.500 227.500 227.500 227.500 228.750 230.000 230.000 230.000 232.500 232.885 233.269 233.654 234.038 234.423 234.808 235.192 235.577 235.962 236.346 236.731 237.115 237.500 237.500 237.500 237.500 237.500 237.500 240.000 240.000 240.000 240.000 240.000 242.500 242.500 242.500 242.500 242.500 245.000 245.000 245.000 245.000 247.500 247.500 247.500 247.500 247.500 250.000 250.000 250.000 252.500 252.500 252.500 252.500 255.000 255.000 255.000 257.500 257.500 257.500 260.000 260.000 260.000 262.500 265.000 265.000 265.000 265.000 265.000 267.500 267.500 267.500 270.000 270.000 270.000 272.500 272.500 273.590 274.811 276.191 277.761 279.564 281.655 284.111 287.035 290.575 294.949 300.492 307.743 317.637 331.940 354.443
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 66 66 66 66 81 75 63 63 48 0 51 51 51 48 57 57 66 63 60 57 0 66 63 60 63 0 0 0 0 0 0 0 0 0 0 0 0 78 84 87 102 102 102 102 102 102 102 102 117 120 120 120 120 117 120 120 120 114 96 96 96 93 93 93 105 99 78 81 78 72 75 75 99 102 102 102 78 78 114 108 81 78 72 75 99 96 93 96 84 87 105 102 99 96 90 87 0 0 0 60 90 87 66 66 99 99 87
</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 1.5625 1.5625 -1.5625 1.5625 -1.5625 -1.5625 1.5625 -1.5625 -10.9375 -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 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 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 -1.5625 -1.5625 -7.8125 1.5625 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="495">
<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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</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="4.675" PeakHeight="252.307" Num="5" zHalfNm="225.203" Error="0.44">
-67.685 9.374 -5.028 1.512 0.02
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="16" EarthRadius="6370.0">
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<QuasiParabolic ID="2" StartDistance="6506.833" EndDistance="6533.667" A="0.0" B="651.5936" C="-0.060120706" Error="0.0098"/>
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<QuasiParabolic ID="4" StartDistance="6535.0" EndDistance="6552.0" A="1.39524751E11" B="-4.2767148E7" C="3277.2852" Error="0.0391"/>
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<QuasiParabolic ID="6" StartDistance="6553.0" EndDistance="6554.0" A="1.21202934E12" B="-3.70042336E8" C="28244.322" Error="0.0"/>
<QuasiParabolic ID="7" StartDistance="6554.0" EndDistance="6555.0" A="-1.08876667E12" B="3.32062016E8" C="-25318.719" Error="3.63E-11"/>
<QuasiParabolic ID="8" StartDistance="6555.0" EndDistance="6556.0" A="1.2128024E12" B="-3.70171136E8" C="28245.975" Error="0.0"/>
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</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="80.5" Depth="0.154"/>
<TopsideChapman PeakHeight="252.307" PeakDensity="271161.6" PeakScaleHeight="20.543" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
