<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-06 -126 00:55:00.000"
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 33 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 60% PACIFIC flags: F2x cusp not found, Multiple candidates for F2x cusp, Multiple candidates for F2o cusp, One of F2 cusps was derived from the other</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.06 (126) 00:55:00</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">
FF202612605060055001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.650" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.400" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.409" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.975" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.975" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.925" 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="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.450" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="307.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.975" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.975" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="282.158" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="256.812" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.625" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="36.307" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.359" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="19.364" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="34.840" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.480" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="28">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
272.500 275.000 277.500 277.500 277.500 280.000 282.500 285.000 285.000 287.500 290.000 292.500 295.000 295.000 297.500 300.000 302.500 305.000 306.250 307.500 311.754 316.927 323.356 331.558 342.386 357.342 379.340 414.887
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
72 72 93 99 99 0 96 93 93 93 93 0 96 99 96 96 99 99 90 84 81 81 93 90 87 0 78 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 -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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="490">
<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="3.65" PeakHeight="282.158" Num="5" zHalfNm="256.812" Error="1.683">
-64.612 3.972 -2.897 1.577 -0.471
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="19" 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="6516.576" A="-1.13669046E11" B="3.5083036E7" C="-2706.8992" Error="0.00176"/>
<QuasiParabolic ID="2" StartDistance="6516.576" EndDistance="6553.151" A="0.0" B="42.387005" C="0.033531815" Error="9.08E-4"/>
<QuasiParabolic ID="3" StartDistance="6553.151" EndDistance="6554.0" A="2.86712136E12" B="-8.7505222E8" C="66767.05" Error="0.0"/>
<QuasiParabolic ID="4" StartDistance="6554.0" EndDistance="6555.0" A="-2.37226557E12" B="7.2378419E8" C="-55207.05" Error="0.0"/>
<QuasiParabolic ID="5" StartDistance="6555.0" EndDistance="6556.0" A="2.43942792E12" B="-7.443145E8" C="56776.066" Error="1.69E-10"/>
<QuasiParabolic ID="6" StartDistance="6556.0" EndDistance="6557.0" A="-2.37363921E12" B="7.2397926E8" C="-55204.848" Error="1.62E-10"/>
<QuasiParabolic ID="7" StartDistance="6557.0" EndDistance="6558.0" A="2.44092921E12" B="-7.4454848E8" C="56776.832" Error="0.0"/>
<QuasiParabolic ID="8" StartDistance="6558.0" EndDistance="6559.0" A="-2.16778762E12" B="6.6097658E8" C="-50384.273" Error="0.0"/>
<QuasiParabolic ID="9" StartDistance="6559.0" EndDistance="6561.0" A="9.2676601E11" B="-2.82628704E8" C="21547.828" Error="0.00922"/>
<QuasiParabolic ID="10" StartDistance="6561.0" EndDistance="6563.0" A="-4.40178115E11" B="1.34059024E8" C="-10207.068" Error="0.0086"/>
<QuasiParabolic ID="11" StartDistance="6563.0" EndDistance="6589.0" A="4.3744969E10" B="-1.3411059E7" C="1027.8917" Error="0.00977"/>
<QuasiParabolic ID="12" StartDistance="6589.0" EndDistance="6591.0" A="9.6964968E12" B="-2.94337075E9" C="223365.1" Error="0.007"/>
<QuasiParabolic ID="13" StartDistance="6591.0" EndDistance="6595.0" A="2.87467373E12" B="-8.733287E8" C="66329.59" Error="0.00925"/>
<QuasiParabolic ID="14" StartDistance="6595.0" EndDistance="6602.0" A="5.3389369E12" B="-1.62064141E9" C="122987.11" Error="0.00268"/>
<QuasiParabolic ID="15" StartDistance="6602.0" EndDistance="6609.0" A="8.621298E12" B="-2.61499494E9" C="198294.1" Error="0.00286"/>
<QuasiParabolic ID="16" StartDistance="6609.0" EndDistance="6627.0" A="1.68534684E13" B="-5.1061949E9" C="386764.38" Error="0.0064"/>
<QuasiParabolic ID="17" StartDistance="6627.0" EndDistance="6637.0" A="-1.03711727E13" B="3.11008435E9" C="-233145.03" Error="0.0026"/>
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</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="109.727" Depth="0.154"/>
<TopsideChapman PeakHeight="282.158" PeakDensity="165291.56" PeakScaleHeight="19.364" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
