<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-18 -108 20:45:00.000"
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) 20:45:00</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="13.725" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.402" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="46.694" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.425" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.425" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="14.200" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="215.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="215.000" 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="0.175" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="12.800" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="300.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="1.568" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.050" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.050" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="260.444" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="217.473" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.176" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="61.069" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="31.902" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="32.258" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="55.660" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.540" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="453">
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<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="807">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
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5.2194033 5.379623 5.5465026 5.719904 5.8994308 6.0846934 6.27513 6.4700274 6.668627 6.8701615 7.0737066 7.2785144 7.483754 7.688745 7.892806 8.095397 8.296019 8.494336 8.69 8.882723 9.072354 9.258748 9.441764 9.621332 9.79738 9.969861 10.138806 10.304118 10.46583 10.623949 10.778443 10.929332 11.07659 11.220212 11.360212 11.4965725 11.629252 11.758286 11.883607 12.0051985 12.123052 12.237106 12.347354 12.453743 12.556241 12.654791 12.749358 12.839871 12.926296 13.008585 13.0866585 13.1605 13.230029 13.295193 13.355949 13.41224 13.46401 13.511226 13.553826 13.591777 13.625038 13.65358 13.677363 13.696369 13.710573 13.719962 13.724524 13.725 13.724604 13.721913 13.716724 13.709089 13.699058 13.686682 13.672011 13.6551 13.635999 13.6147585 13.591431 13.566068 13.53872 13.50944 13.478277 13.445283 13.410507 13.374 13.33581 13.295986 13.25458 13.211636 13.167203 13.121329 13.07406 13.025442 12.97552 12.92434 12.871944 12.8183775 12.763682 12.707901 12.651074 12.593245 12.534451 12.474732 12.414129 12.352677 12.290416 12.227381 12.163609 12.0991335 12.03399 11.968212 11.901834 11.834886 11.767401 11.69941 11.630943 11.56203 11.492699 11.422978 11.352896 11.282479 11.211753 11.140743 11.069475 10.997973 10.926261 10.854361 10.782295 10.710087 10.637755 10.565323 10.492808 10.420231 10.347611 10.274966 10.202313 10.129671 10.0570545 9.984482 9.911967 9.839527 9.767176 9.694926 9.622793 9.550791 9.478931 9.407227 9.33569 9.264331 9.193162 9.122195 9.051438 8.980904 8.9106 8.840535 8.7707205 8.701163 8.631872 8.562854 8.494118 8.42567 8.357518 8.289668 8.222126 8.1549 8.087993 8.021412 7.955162 7.8892484 7.8236756 7.7584486 7.6935706 7.629047 7.5648804 7.501075 7.4376335 7.37456 7.311857 7.2495275 7.187574 7.1259985 7.064804 7.003992 6.9435644 6.8835235 6.82387 6.764606 6.7057323 6.6472507 6.589162 6.531466 6.474165 6.4172583 6.3607473 6.304632 6.248913 6.1935897 6.1386623 6.0841317 6.0299964 5.9762573 5.922913 5.869964 5.817409 5.7652483 5.7134805 5.6621046 5.6111207 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<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="1.568" PeakHeight="110.0" Num="3" Error="0.0">
-28.276 10.081 -1.897
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-108.591 -3.09 -6.943 0.521 1.963
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<QuasiParabolic ID="19" StartDistance="6609.0" EndDistance="6630.444" A="-1.20110036E14" B="3.6229861E10" C="-2731895.8" Error="0.00332"/>
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<ProfileValley Model="ULCAR" Width="34.304" Depth="0.157"/>
<TopsideChapman PeakHeight="260.444" PeakDensity="2337166.5" PeakScaleHeight="32.258" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
