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<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-16 -106 14:20:00.000"
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="1 26 1 1 0 0 0 0 0 55 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49: Problems inverting F-trace to N(h)-profile</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.16 (106) 14:20:00</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">
FF202610604161420001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="9.550" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="10" Val="9.250" Name="foF1" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.397" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="32.439" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.450" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="30" Val="3.650" Name="foEs" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="5.050" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="81" Val="3.450" Name="fminE" Units="MHz" QL="/" DL="/" />
<URSI ID="20" Val="3.480" Name="foE" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="10.150" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="250.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="375.000" Name="h`F2" Units="km" QL="/" DL="/" />
<URSI ID="24" Val="115.644" Name="h`E" Units="km" QL="/" DL="/" />
<URSI ID="34" Val="112.500" Name="h`Es" 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="8.850" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="297.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="3.064" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="5.800" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="9.275" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.196" Units="MHz" ModelName="IRI-90" />
<Modeled Name="foF2p" Val="9.005" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<Custom Name="fminEs" Val="3.500" Description="Minimum frequency of Es-layer" Units="MHz" />
</CharacteristicList>
<TraceList Num="4">
<Trace Type="standard" Layer="F2" Polarization="O" Num="12">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
9.275 9.3 9.325 9.35 9.375 9.4 9.425 9.45 9.475 9.5 9.525 9.55
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
297.500 300.000 302.500 305.000 307.500 310.000 312.500 315.000 320.000 322.500 325.000 330.000
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
93 93 93 93 90 93 90 78 78 54 54 87
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125
</TraceValueList>
</Trace>
<Trace Type="standard" Layer="F1" Polarization="O" Num="169">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
5.05 5.075 5.1 5.125 5.15 5.175 5.2 5.225 5.25 5.275 5.3 5.325 5.35 5.375 5.4 5.425 5.45 5.475 5.5 5.525 5.55 5.575 5.6 5.625 5.65 5.675 5.7 5.725 5.75 5.775 5.8 5.825 5.85 5.875 5.9 5.925 5.95 5.975 6.0 6.025 6.05 6.075 6.1 6.125 6.15 6.175 6.2 6.225 6.25 6.275 6.3 6.325 6.35 6.375 6.4 6.425 6.45 6.475 6.5 6.525 6.55 6.575 6.6 6.625 6.65 6.675 6.7 6.725 6.75 6.775 6.8 6.825 6.85 6.875 6.9 6.925 6.95 6.975 7.0 7.025 7.05 7.075 7.1 7.125 7.15 7.175 7.2 7.225 7.25 7.275 7.3 7.325 7.35 7.375 7.4 7.425 7.45 7.475 7.5 7.525 7.55 7.575 7.6 7.625 7.65 7.675 7.7 7.725 7.75 7.775 7.8 7.825 7.85 7.875 7.9 7.925 7.95 7.975 8.0 8.025 8.05 8.075 8.1 8.125 8.15 8.175 8.2 8.225 8.25 8.275 8.3 8.325 8.35 8.375 8.4 8.425 8.45 8.475 8.5 8.525 8.55 8.575 8.6 8.625 8.65 8.675 8.7 8.725 8.75 8.775 8.8 8.825 8.85 8.875 8.9 8.925 8.95 8.975 9.0 9.025 9.05 9.075 9.1 9.125 9.15 9.175 9.2 9.225 9.25
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
265.000 265.000 262.500 262.500 262.500 262.500 262.500 260.000 260.000 260.000 260.000 257.500 257.500 257.500 255.000 255.000 255.000 255.000 255.000 255.000 253.750 252.500 252.500 252.500 252.500 252.500 252.500 252.500 252.500 251.250 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 252.500 252.500 252.500 252.500 252.500 252.500 252.500 252.500 252.500 255.000 255.000 255.000 255.000 255.000 255.000 255.000 255.000 255.000 257.500 257.500 257.500 257.500 257.500 260.000 260.000 260.000 260.000 260.000 262.500 262.500 262.500 262.500 262.500 262.500 262.500 265.000 265.000 265.000 265.000 267.500 267.500 267.500 267.500 267.500 267.500 270.000 270.000 270.000 272.500 272.500 272.500 275.000 275.000 277.500 277.500 277.500 277.500 280.000 280.000 282.500 282.500 285.000 285.000 285.000 285.000 287.500 290.000 290.000 292.500 292.500 295.000 297.500 297.500 297.500 300.000 302.500 305.000 307.500 310.000 312.500 315.000 320.000 322.500 325.000 330.000 335.000 340.000 347.500 357.500 365.000
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
87 0 0 78 78 78 78 90 93 81 81 78 81 93 93 78 78 93 93 81 81 93 90 93 93 93 93 81 81 81 81 81 81 81 84 84 84 84 84 84 84 93 96 81 81 57 57 81 81 81 81 81 81 81 81 81 81 81 84 81 84 96 93 81 81 81 81 84 84 84 84 84 84 96 93 69 69 54 51 81 81 81 81 81 81 84 81 81 81 81 84 84 84 84 84 87 84 84 87 87 87 87 81 84 84 87 87 87 90 81 84 87 87 87 84 75 75 51 42 36 36 63 60 84 84 96 96 93 96 96 93 84 75 69 72 96 93 96 90 69 63 45 48 57 60 81 84 93 96 96 93 93 93 93 93 93 90 93 90 78 78 54 54 87 87 87 84 84 81
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
3.125 -3.125 3.125 3.125 -3.125 3.125 -3.125 3.125 3.125 -3.125 -3.125 3.125 3.125 3.125 -3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 -3.125 -3.125 3.125 -3.125 3.125 3.125 3.125 3.125 3.125 3.125 -3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 -3.125 3.125 3.125 3.125 -3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 -3.125 3.125 3.125 3.125 -3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 -3.125
</TraceValueList>
</Trace>
<Trace Type="standard" Layer="E" Polarization="O" Num="2">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
3.45 3.475
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
115.644 117.219
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 51
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-3.125 -3.125
</TraceValueList>
</Trace>
<Trace Type="standard" Layer="Es" Polarization="O" Num="7">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
3.5 3.525 3.55 3.575 3.6 3.625 3.65
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
115.000 115.000 112.500 112.500 112.500 112.500 112.500
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
54 57 54 0 57 0 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-3.125 3.125 -3.125 -3.125 3.125 3.125 -3.125
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="22">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
89.47 90.0 91.0 92.0 93.0 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.24146545 1.2062657 1.6371012 1.9211172 2.1485178 2.3414664 2.5095294 2.6578927 2.7897089 2.9070678 3.0113978 3.1037652 3.1849415 3.2555006 3.315921 3.3665447 3.4076364 3.4394014 3.4619877 3.4755013 3.48

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="1" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.48" PeakHeight="110.0" Num="3" Error="0.0">
-30.562 13.244 -3.212
</ShiftedChebyshev>
</ShiftedChebyshevList>
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
