<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-21 -294 03:00:00.000"
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 44 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 40% PACIFIC flags: Multiple candidates for F2x cusp, Multiple candidates for F2o cusp, One of F2 cusps was derived from the other, Unidentified traces above foF2, Trace overlaps while constructing baseline</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.10.21 (294) 03:00:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.32" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-16.06" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="62.486557" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202629410210300001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="6.850" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.461" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="23.711" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.325" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.325" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="7.175" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="272.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="272.500" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="6.775" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="323.022" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.400" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.400" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="291.085" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="272.174" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="5.637" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="28.514" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="3.590" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="13.846" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="32.100" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.390" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="142">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
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</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
90 0 0 90 96 96 90 0 78 81 75 75 81 81 87 90 75 75 63 0 0 0 0 90 96 102 0 87 0 0 84 87 102 102 102 0 93 87 90 0 90 90 0 90 63 0 66 63 54 54 75 75 96 99 99 96 87 90 87 90 90 87 63 66 102 102 90 90 87 84 93 99 60 54 99 102 102 99 102 99 102 102 66 66 102 102 93 93 96 96 93 99 93 93 96 102 84 84 96 93 99 99 96 99 96 93 102 99 96 99 96 93 96 96 0 99 87 0 0 84 99 99 93 0 0 96 99 96 90 93 93 93 93 93 96 93 96 93 90 0 60 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="443">
<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="6.85" PeakHeight="291.085" Num="5" zHalfNm="272.174" Error="0.871">
-64.806 -14.018 9.738 -4.101 0.92
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="9" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6460.0205" EndDistance="6480.001" A="-5.5027394E11" B="1.69837632E8" C="-13104.63" Error="0.0016"/>
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<QuasiParabolic ID="2" StartDistance="6516.273" EndDistance="6552.545" A="0.0" B="1751.1877" C="-0.22870761" Error="0.0364"/>
<QuasiParabolic ID="3" StartDistance="6552.545" EndDistance="6588.0" A="1.5700096E10" B="-4881344.5" C="379.32846" Error="0.0364"/>
<QuasiParabolic ID="4" StartDistance="6588.0" EndDistance="6590.0" A="1.21484503E13" B="-3.68816922E9" C="279924.56" Error="0.0138"/>
<QuasiParabolic ID="5" StartDistance="6590.0" EndDistance="6598.0" A="5.621958E12" B="-1.7074432E9" C="129641.85" Error="0.0387"/>
<QuasiParabolic ID="6" StartDistance="6598.0" EndDistance="6616.0" A="1.60396067E13" B="-4.8652636E9" C="368943.2" Error="0.0101"/>
<QuasiParabolic ID="7" StartDistance="6616.0" EndDistance="6657.0" A="2.74180918E13" B="-8.3049503E9" C="628895.3" Error="0.0379"/>
<QuasiParabolic ID="8" StartDistance="6657.0" EndDistance="6661.085" A="-3.66785006E14" B="1.1012771E11" C="-8266452.5" Error="0.0017"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="108.818" Depth="0.154"/>
<TopsideChapman PeakHeight="291.085" PeakDensity="582165.0" PeakScaleHeight="13.846" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
