<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-18 -108 20:40:00.000"
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="20.0">
<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 22 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 85% PACIFIC flags: Multiple candidates for F2x cusp, One of F2 cusps was derived from the other</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.18 (108) 20:40:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.20" 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">
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</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="13.475" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.404" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="45.873" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.625" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.625" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="13.775" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="212.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="212.500" 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="0.150" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="12.575" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="300.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="1.651" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.275" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.275" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="259.061" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="217.466" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.308" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="59.305" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="30.237" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="31.482" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="57.350" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.300" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="435">
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<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="789">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
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5.5614686 5.7039247 5.850397 6.00074 6.154905 6.312675 6.4739304 6.6383915 6.8057966 6.975895 7.148349 7.3228397 7.4989953 7.67649 7.8549285 8.033986 8.213275 8.392476 8.571256 8.749303 8.926329 9.102068 9.276255 9.448662 9.619057 9.787243 9.953044 10.116309 10.276848 10.434521 10.589222 10.740807 10.889165 11.034207 11.175845 11.313929 11.448402 11.579208 11.706215 11.829368 11.948617 12.063836 12.174988 12.282006 12.38482 12.483349 12.577541 12.667348 12.752678 12.833511 12.909762 12.981383 13.048335 13.110561 13.168005 13.220648 13.268433 13.311318 13.349281 13.382284 13.410307 13.433319 13.451308 13.464255 13.472152 13.474995 13.475 13.473837 13.470073 13.463757 13.454941 13.443682 13.430032 13.414046 13.39578 13.375286 13.35262 13.327836 13.300988 13.272131 13.241318 13.208602 13.174037 13.137675 13.09957 13.0597725 13.018334 12.9753065 12.930739 12.884682 12.837184 12.788295 12.738062 12.686531 12.633751 12.579767 12.524624 12.468367 12.411037 12.352681 12.29334 12.233054 12.171865 12.109814 12.046938 11.983276 11.918867 11.853746 11.787951 11.721517 11.654477 11.586866 11.518718 11.450064 11.380936 11.311363 11.241379 11.17101 11.100286 11.029235 10.957883 10.886257 10.814384 10.742289 10.669994 10.597526 10.524904 10.452155 10.379298 10.306355 10.233347 10.160294 10.0872135 10.014127 9.941051 9.868002 9.795 9.722059 9.649198 9.576429 9.503769 9.431232 9.358832 9.286583 9.214497 9.142588 9.070866 8.999344 8.928034 8.856945 8.786089 8.715475 8.645113 8.575012 8.505181 8.43563 8.3663645 8.297394 8.2287245 8.160365 8.092321 8.0246 7.9572067 7.890148 7.82343 7.757057 7.691035 7.6253676 7.5600605 7.4951177 7.4305425 7.3663397 7.302512 7.2390633 7.175997 7.1133156 7.0510216 6.989118 6.927607 6.866491 6.805771 6.74545 6.6855288 6.6260095 6.566893 6.5081806 6.4498734 6.3919716 6.334477 6.2773895 6.22071 6.164438 6.1085744 6.053119 5.998072 5.9434333 5.8892026 5.8353796 5.781964 5.728955 5.676352 5.624154 5.5723615 5.520972 5.4699855 5.419401 5.369217 5.3194327 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<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="1.651" PeakHeight="110.0" Num="3" Error="0.0">
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-107.364 -6.714 -4.869 1.305 1.086
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<ProfileValley Model="ULCAR" Width="32.505" Depth="0.152"/>
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</Profile>
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</SAORecord>
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