<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-02-15 -046 10:55:00.000"
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" >
2026.02.15 (046) 10:55:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.16" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.95" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="85.88234" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202604602151055001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="21" >
<URSI ID="00" Val="7.175" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="10" Val="2.850" Name="foF1" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.359" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="24.099" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.050" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.725" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="81" Val="2.050" Name="fminE" Units="MHz" QL="/" DL="/" />
<URSI ID="20" Val="2.630" Name="foE" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="7.525" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="145.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="220.000" Name="h`F2" Units="km" QL="/" DL="/" />
<URSI ID="24" Val="102.551" Name="h`E" Units="km" QL="/" DL="/" />
<URSI ID="90" Val="99.953" Name="hmE" Units="km" QL="/" DL="/" />
<URSI ID="83" Val="9.764" Name="yE" Units="km" QL="/" DL="/" />
<URSI ID="86" Val="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="6.700" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="307.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="2.465" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.725" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.225" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF2p" Val="5.651" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
</CharacteristicList>
<TraceList Num="3">
<Trace Type="standard" Layer="F2" Polarization="O" Num="162">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
227.500 222.500 221.250 220.000 220.000 220.000 220.000 222.500 222.500 222.500 222.500 222.500 225.000 225.000 225.000 226.250 227.500 227.500 227.500 230.000 230.000 230.000 230.000 232.500 232.500 232.500 232.500 235.000 235.000 235.000 237.500 237.500 240.000 240.000 240.000 240.000 240.000 242.500 242.500 245.000 245.000 245.000 247.500 247.500 247.500 247.500 247.500 250.000 250.000 252.500 252.500 252.500 252.500 255.000 255.000 255.000 257.500 257.500 257.500 257.500 257.500 257.500 257.500 257.500 260.000 260.000 260.000 260.000 260.000 261.250 262.500 262.500 262.500 265.000 265.000 265.000 265.000 265.000 265.000 267.500 267.500 267.500 267.500 267.500 267.500 267.500 267.500 267.500 268.750 270.000 270.000 270.000 270.000 270.000 272.500 272.500 272.500 272.500 272.500 272.500 275.000 275.000 275.000 275.000 275.000 275.000 277.500 277.500 277.500 277.500 277.500 280.000 280.000 280.000 280.000 280.000 281.250 282.500 283.750 285.000 287.500 287.500 287.500 287.500 287.500 290.000 290.000 290.000 292.500 292.500 292.500 295.000 295.000 297.500 297.500 300.000 300.000 302.500 305.000 305.000 307.500 307.500 307.500 312.500 312.500 315.000 317.500 320.000 325.000 327.500 332.500 335.000 337.500 342.500 347.500 355.000 365.000 375.000 387.500 405.352 429.854 465.570
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
63 54 0 66 66 75 69 69 69 69 69 69 66 42 39 42 48 51 51 51 51 51 51 51 51 51 48 75 78 78 78 78 72 66 69 69 66 81 81 78 81 69 66 69 69 69 69 81 78 78 78 54 54 54 54 57 51 42 45 69 66 78 75 60 66 75 72 69 66 0 99 99 96 96 0 90 93 93 93 96 99 84 84 84 84 69 69 75 78 90 87 84 87 99 102 93 96 96 96 108 108 111 111 99 99 99 99 99 99 87 84 96 96 96 96 93 0 0 0 90 75 57 63 90 90 87 90 90 90 93 93 93 93 93 93 93 96 93 87 81 78 78 78 93 93 93 93 90 90 78 72 63 60 57 54 81 81 81 81 78 72 69
</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
</TraceValueList>
</Trace>
<Trace Type="standard" Layer="F1" Polarization="O" Num="6">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.725 2.75 2.775 2.8 2.825 2.85
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
145.000 152.500 158.333 164.167 170.000 172.500
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
42 42 0 0 18 24
</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
</TraceValueList>
</Trace>
<Trace Type="standard" Layer="E" Polarization="O" Num="24">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.05 2.075 2.1 2.125 2.15 2.175 2.2 2.225 2.25 2.275 2.3 2.325 2.35 2.375 2.4 2.425 2.45 2.475 2.5 2.525 2.55 2.575 2.6 2.625
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
102.551 102.814 103.087 103.371 103.667 103.976 104.299 104.637 104.991 105.364 105.758 106.174 106.616 107.087 107.592 108.136 108.726 109.371 110.084 110.881 111.789 112.846 114.116 115.721
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
36 39 0 51 48 36 0 39 39 27 33 36 33 45 48 54 54 45 51 54 51 0 0 39
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="11">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
90.0 91.0 92.0 93.0 94.0 95.0 96.0 97.0 98.0 99.0 99.953
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 1.1806488 1.6737921 2.0002215 2.2490761 2.4442005 2.5960038 2.709995 2.7892606 2.835601 2.85

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="1" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="2.85" PeakHeight="99.953" Num="3" Error="3.196">
-14.574 5.959 -1.338
</ShiftedChebyshev>
</ShiftedChebyshevList>
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
