<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-15 -105 06:55:00.000"
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" >
2026.04.15 (105) 06:55:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.98" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202610504150655001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.075" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.591" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.041" 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="3.475" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="235.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="235.000" 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="0.025" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.925" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="283.692" 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="253.762" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="226.752" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.030" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="38.515" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.033" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="21.096" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="31.920" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="4.170" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="44">
<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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
235.000 235.833 236.667 237.500 237.500 238.750 240.000 240.714 241.429 242.143 242.857 243.571 244.286 245.000 245.000 245.000 247.500 247.500 250.000 250.000 250.000 251.500 253.000 254.500 256.000 257.500 258.497 259.597 260.818 262.181 263.711 265.443 267.417 269.689 272.332 275.446 279.167 283.692 289.316 296.491 305.964 319.047 338.292 369.390
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
84 0 0 81 81 0 84 0 0 0 0 0 0 57 57 69 69 75 72 72 69 0 0 0 0 66 66 69 0 0 66 0 0 57 57 0 0 0 0 0 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 -10.9375 4.6875 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="477">
<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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</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="3.075" PeakHeight="253.762" Num="5" zHalfNm="226.752" Error="1.201">
-63.531 12.382 -7.494 3.533 -1.152
</ShiftedChebyshev>
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<QuasiParabolicList Num="10" 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="6509.167" A="-1.78385355E11" B="5.5057208E7" C="-4248.116" Error="0.00152"/>
<QuasiParabolic ID="2" StartDistance="6509.167" EndDistance="6538.333" A="0.0" B="-238.91127" C="0.07672123" Error="0.00453"/>
<QuasiParabolic ID="3" StartDistance="6538.333" EndDistance="6562.0" A="5.7250988E10" B="-1.7599606E7" C="1352.587" Error="0.00453"/>
<QuasiParabolic ID="4" StartDistance="6562.0" EndDistance="6566.0" A="-1.95754082E11" B="5.9512576E7" C="-4523.0747" Error="0.00794"/>
<QuasiParabolic ID="5" StartDistance="6566.0" EndDistance="6578.0" A="5.509342E12" B="-1.67825664E9" C="127807.81" Error="0.015"/>
<QuasiParabolic ID="6" StartDistance="6578.0" EndDistance="6584.0" A="8.2129684E12" B="-2.5002775E9" C="190290.39" Error="0.00356"/>
<QuasiParabolic ID="7" StartDistance="6584.0" EndDistance="6597.0" A="2.21719822E13" B="-6.7405614E9" C="512304.66" Error="0.0134"/>
<QuasiParabolic ID="8" StartDistance="6597.0" EndDistance="6607.0" A="-2.28859849E13" B="6.9195776E9" C="-523024.94" Error="0.00801"/>
<QuasiParabolic ID="9" StartDistance="6607.0" EndDistance="6623.762" A="-1.07328622E13" B="3.24071475E9" C="-244618.5" Error="0.00361"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="87.5" Depth="0.154"/>
<TopsideChapman PeakHeight="253.762" PeakDensity="117315.445" PeakScaleHeight="21.096" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
