<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-15 -105 22:25:00.000"
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 11 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 95% PACIFIC flags: Multiple candidates for F2x cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.15 (105) 22:25:00</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">
FF202610504152225001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.150" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.697" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="15.344" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.600" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.600" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.550" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.900" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="263.327" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.625" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.625" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="240.621" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="213.467" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="6.162" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="38.496" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.868" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="21.270" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="30.110" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="4.870" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="63">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 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 3.675 3.7 3.725 3.75 3.775 3.8 3.825 3.85 3.875 3.9 3.925 3.95 3.975 4.0 4.025 4.05 4.075 4.1 4.125 4.15
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
217.500 215.000 215.000 217.500 217.500 217.500 217.500 217.500 217.500 217.500 217.500 217.500 217.500 218.750 220.000 220.000 222.500 222.500 222.500 222.500 225.000 225.000 225.000 225.000 227.500 227.500 227.500 227.500 227.500 230.000 230.000 232.500 235.000 235.000 235.000 235.000 237.500 237.500 240.000 240.000 242.500 242.500 245.000 245.000 247.500 250.000 250.000 252.500 254.191 256.077 258.196 260.593 263.327 266.473 270.133 274.444 279.596 285.863 293.649 303.584 316.700 334.815 361.461
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
51 60 57 51 54 51 54 45 48 36 36 45 42 0 45 69 72 69 72 87 84 75 75 87 87 90 90 87 87 102 99 99 96 75 69 69 72 75 75 75 69 72 69 66 63 48 51 72 75 75 75 75 81 84 81 63 63 66 66 75 69 69 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="486">
<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="4.15" PeakHeight="240.621" Num="5" zHalfNm="213.467" Error="1.717">
-65.909 15.486 -10.197 5.082 -1.583
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="11" 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="6504.5" A="-2.52482355E11" B="7.7926656E7" C="-6012.734" Error="0.00135"/>
<QuasiParabolic ID="2" StartDistance="6504.5" EndDistance="6529.0" A="0.0" B="-905.24744" C="0.17918135" Error="0.0133"/>
<QuasiParabolic ID="3" StartDistance="6529.0" EndDistance="6553.0" A="8.7420576E10" B="-2.687767E7" C="2065.9143" Error="0.0133"/>
<QuasiParabolic ID="4" StartDistance="6553.0" EndDistance="6555.0" A="9.3734474E12" B="-2.86100787E9" C="218312.67" Error="0.00696"/>
<QuasiParabolic ID="5" StartDistance="6555.0" EndDistance="6566.0" A="6.9633557E12" B="-2.1256631E9" C="162222.31" Error="0.0125"/>
<QuasiParabolic ID="6" StartDistance="6566.0" EndDistance="6567.0" A="1.72024031E13" B="-5.2444713E9" C="399719.16" Error="0.0"/>
<QuasiParabolic ID="7" StartDistance="6567.0" EndDistance="6573.0" A="1.79392689E13" B="-5.468886E9" C="416805.66" Error="0.00946"/>
<QuasiParabolic ID="8" StartDistance="6573.0" EndDistance="6583.0" A="6.77258E13" B="-2.0617685E10" C="1569156.2" Error="0.0183"/>
<QuasiParabolic ID="9" StartDistance="6583.0" EndDistance="6591.0" A="-6.8232917E13" B="2.06883205E10" C="-1568167.6" Error="0.0158"/>
<QuasiParabolic ID="10" StartDistance="6591.0" EndDistance="6610.621" A="-1.8382221E13" B="5.5614198E9" C="-420625.56" Error="0.00859"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="73.5" Depth="0.154"/>
<TopsideChapman PeakHeight="240.621" PeakDensity="213678.66" PeakScaleHeight="21.27" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
