<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-09 -129 17:40:00.000"
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="1 25 0 1 0 0 0 1 0 55 0 0 0 0 0 0 0 0 0 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" >
2026.05.09 (129) 17:40:00</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">
FF202612905091740001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="21" >
<URSI ID="00" Val="8.650" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="10" Val="3.575" Name="foF1" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.230" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="27.936" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.050" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.350" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="81" Val="3.050" Name="fminE" Units="MHz" QL="/" DL="/" />
<URSI ID="20" Val="3.230" Name="foE" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="9.000" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="102.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="142.500" Name="h`F2" Units="km" QL="/" DL="/" />
<URSI ID="24" Val="100.535" Name="h`E" Units="km" QL="/" DL="/" />
<URSI ID="90" Val="95.558" Name="hmE" Units="km" QL="/" DL="/" />
<URSI ID="83" Val="5.424" Name="yE" Units="km" QL="/" DL="/" />
<URSI ID="86" Val="0.150" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="7.875" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="315.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="2.824" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.375" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.650" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.215" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
</CharacteristicList>
<TraceList Num="3">
<Trace Type="standard" Layer="F2" Polarization="O" Num="203">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 4.175 4.2 4.225 4.25 4.275 4.3 4.325 4.35 4.375 4.4 4.425 4.45 4.475 4.5 4.525 4.55 4.575 4.6 4.625 4.65 4.675 4.7 4.725 4.75 4.775 4.8 4.825 4.85 4.875 4.9 4.925 4.95 4.975 5.0 5.025 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
150.000 146.250 142.500 145.000 146.964 148.929 150.893 152.857 154.821 156.786 158.750 160.714 162.679 164.643 166.607 168.571 170.536 172.500 174.464 176.429 178.393 180.357 182.321 184.286 186.250 188.214 190.179 192.143 194.107 196.071 198.036 200.000 201.964 203.929 205.893 207.857 209.821 211.786 213.750 215.714 217.679 219.643 221.607 223.571 225.536 227.500 229.464 231.429 233.393 235.357 237.321 239.286 241.250 243.214 245.179 247.143 249.107 251.071 253.036 255.000 255.000 255.000 255.000 255.000 255.000 257.500 257.500 257.500 257.500 257.500 257.500 257.500 257.500 257.500 257.500 257.500 257.500 257.500 257.500 257.500 257.500 257.500 257.500 257.500 257.500 260.000 260.000 260.000 260.000 260.000 260.000 260.000 260.000 260.000 260.000 260.000 262.500 262.500 262.984 263.468 263.952 264.435 264.919 265.403 265.887 266.371 266.855 267.339 267.823 268.306 268.790 269.274 269.758 270.242 270.726 271.210 271.694 272.177 272.661 273.145 273.629 274.113 274.597 275.081 275.565 276.048 276.532 277.016 277.500 277.500 277.500 277.500 280.000 280.000 280.000 280.000 280.000 282.500 282.500 282.500 282.500 285.000 285.000 285.000 287.500 287.500 287.500 290.000 290.000 290.000 292.500 292.500 295.000 295.000 295.000 297.500 297.500 297.500 300.000 300.000 302.500 302.500 305.000 305.000 307.500 307.500 307.500 312.500 312.500 312.500 315.000 315.000 317.500 320.000 322.500 325.000 325.000 327.500 330.000 332.500 332.500 335.000 337.500 342.500 345.000 350.000 352.500 355.000 358.739 362.882 367.499 372.675 378.518 385.167 392.801 401.655 412.048 424.419 439.393 457.886 481.306 511.924 553.661
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
48 0 54 48 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 78 81 84 84 84 81 81 81 69 0 78 81 87 90 87 84 69 63 0 78 81 78 78 81 81 81 84 90 90 90 90 87 84 84 81 81 75 78 87 84 0 0 0 81 0 78 0 0 81 84 87 0 78 78 0 0 0 72 78 81 81 0 0 0 0 0 0 0 0 72 84 84 75 69 60 60 54 51 66 66 75 75 78 81 81 84 75 72 69 75 87 87 87 84 75 75 66 69 69 66 81 84 84 84 87 87 72 72 93 96 84 81 78 75 63 63 39 42 30 30 48 54 84 84 87 87 84 87 87 84 87 84 84 87 87 87 72 66 36 0 36 33 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 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -9.375 -3.125 -3.125 -3.125 -9.375 -3.125 -3.125 -3.125 -3.125 -3.125 9.375 -3.125 -9.375 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -21.875 -3.125 -21.875 -3.125 -3.125 -3.125 3.125 3.125 -9.375 -3.125 -3.125 9.375 -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="F1" Polarization="O" Num="10">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
3.35 3.375 3.4 3.425 3.45 3.475 3.5 3.525 3.55 3.575
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
106.250 102.500 107.500 102.500 110.000 112.500 115.000 128.750 142.500 146.250
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 81 87 75 72 0 0 0 51 51
</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
</TraceValueList>
</Trace>
<Trace Type="standard" Layer="E" Polarization="O" Num="8">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
3.05 3.075 3.1 3.125 3.15 3.175 3.2 3.225
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
100.535 101.234 102.016 102.908 103.946 105.197 106.781 108.966
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
63 66 63 78 81 72 72 72
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="7">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
90.0 91.0 92.0 93.0 94.0 95.0 95.558
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 1.9775193 2.6861672 3.1349237 3.4153972 3.5547378 3.575

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="1" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.575" PeakHeight="95.558" Num="3" Error="1.237">
-8.24 3.519 -0.837
</ShiftedChebyshev>
</ShiftedChebyshevList>
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
