<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-02-18 -049 23:25:00.000"
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 8 0 0 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" >
2026.02.18 (049) 23:25:00</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">
FF202604902182325001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="21" >
<URSI ID="00" Val="8.400" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.061" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="25.712" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.350" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="30" Val="4.950" Name="foEs" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.750" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="8.825" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="90.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="90.000" Name="h`F2" Units="km" QL="/" DL="/" />
<URSI ID="34" Val="92.500" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="7.800" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="357.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.364" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.750" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.750" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF2p" Val="7.569" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<Custom Name="fminEs" Val="2.350" Description="Minimum frequency of Es-layer" Units="MHz" />
<URSI ID="32" Val="2.750" Name="fbEs" Units="MHz" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="2">
<Trace Type="standard" Layer="F2" Polarization="O" Num="227">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
90.000 90.000 90.000 90.357 90.714 91.071 91.429 91.786 92.143 92.500 92.500 92.500 92.500 92.500 92.500 92.500 91.667 90.833 90.000 90.000 90.000 90.750 91.500 92.250 93.000 93.750 94.500 95.250 96.000 96.750 97.500 97.500 97.500 97.500 97.500 98.750 100.000 104.500 109.000 113.500 118.000 122.500 127.000 131.500 136.000 140.500 145.000 149.500 154.000 158.500 163.000 167.500 172.000 176.500 181.000 185.500 190.000 194.500 199.000 203.500 208.000 212.500 217.000 221.500 226.000 230.500 235.000 239.500 244.000 248.500 253.000 257.500 257.500 257.500 258.750 260.000 260.000 260.000 260.000 260.000 262.500 262.500 262.500 262.500 265.000 265.000 265.000 265.000 265.000 265.000 265.000 265.000 265.000 267.500 267.500 267.500 267.500 267.500 270.000 270.000 270.000 270.000 270.000 270.000 270.000 272.500 272.500 272.500 272.500 272.500 275.000 275.000 275.000 275.000 275.000 275.000 275.000 277.500 277.500 277.500 277.500 280.000 280.000 280.000 282.500 282.500 282.500 282.500 282.500 282.500 285.000 285.000 285.000 285.000 285.000 287.500 287.500 287.500 290.000 290.000 290.000 290.000 290.000 292.500 292.500 292.500 295.000 295.000 295.000 297.500 297.500 297.500 297.500 300.000 300.000 300.000 300.000 302.500 302.500 302.500 302.500 305.000 307.500 307.500 307.500 307.500 310.000 310.000 312.500 312.500 312.500 315.000 317.500 317.500 317.500 317.500 320.000 320.000 322.500 322.500 325.000 325.000 327.500 327.500 330.000 330.000 332.500 332.500 335.000 337.500 337.500 340.000 340.000 342.500 342.500 347.500 347.500 350.000 350.000 355.000 355.000 357.500 357.500 360.000 362.500 365.000 370.000 372.500 375.000 377.500 382.500 390.000 392.500 395.000 400.000 405.000 407.500 420.000 422.500 430.000 447.500 452.500 460.000 474.296 491.338 512.002 537.579
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
54 69 0 0 45 0 0 24 21 57 0 51 45 69 69 84 0 0 63 75 72 0 78 90 99 81 81 87 81 0 63 54 42 51 54 0 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 75 72 72 0 69 72 63 63 63 57 0 69 75 75 87 87 81 84 72 72 72 72 96 102 105 105 93 90 84 84 81 75 87 90 105 102 90 93 96 96 96 96 111 108 93 93 90 87 90 93 93 96 99 93 84 87 87 87 111 108 99 99 96 93 93 93 93 90 90 90 90 87 87 87 87 87 87 87 81 84 84 87 87 87 75 75 87 84 87 81 99 93 84 84 81 81 63 66 66 63 87 78 72 78 78 81 81 81 81 81 81 81 84 84 87 87 90 87 84 84 81 81 72 72 93 96 84 81 90 87 72 66 87 93 93 96 78 75 87 90 81 78 75 63 81 84 72 78 75 72 75 75 75 0 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 -3.125 3.125 3.125 3.125 3.125 3.125 -3.125 -3.125 -3.125 3.125 3.125 3.125 -3.125 -3.125 3.125 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 -3.125 -3.125 3.125 -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 9.375 -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 -3.125 3.125 -3.125 -3.125 3.125 -3.125 3.125 3.125 3.125 3.125 -3.125 3.125 3.125 -3.125 -3.125 3.125 3.125 -3.125 3.125 -3.125 -3.125 -3.125 -3.125 3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 3.125 3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 3.125 -3.125 3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 3.125 -3.125 -3.125 3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 3.125 -3.125 -3.125 -3.125 3.125 3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 3.125 -3.125 -3.125 3.125 3.125 3.125 -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="Es" Polarization="O" Num="105">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.35 2.375 2.4 2.425 2.45 2.475 2.5 2.525 2.55 2.575 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 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
102.500 92.500 97.500 102.500 100.000 97.500 96.250 95.000 100.000 92.500 92.500 92.500 92.500 95.000 95.000 95.000 95.000 95.000 95.000 95.000 95.000 95.000 95.000 95.000 95.000 95.000 96.250 97.500 97.500 100.000 100.000 97.500 98.750 100.000 101.250 102.500 101.667 100.833 100.000 95.000 95.000 95.000 95.000 95.000 95.000 93.750 92.500 92.500 92.500 92.500 95.000 95.000 95.000 95.000 95.000 92.500 92.500 95.000 92.500 95.000 97.500 100.000 96.250 92.500 92.500 92.500 92.500 92.500 92.500 92.500 92.500 92.500 92.500 92.500 92.500 92.500 92.500 92.500 92.500 92.500 93.333 94.167 95.000 95.625 96.250 96.875 97.500 92.500 97.500 95.000 97.500 97.500 97.500 95.000 92.500 92.500 93.750 95.000 95.000 95.000 96.250 97.500 96.250 95.000 100.000
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
30 60 0 57 0 60 0 48 0 54 60 60 60 0 54 0 54 63 0 0 45 0 0 24 21 54 0 51 45 69 69 75 0 57 0 72 0 0 0 90 99 81 81 87 81 0 72 54 63 63 60 0 48 0 63 69 69 0 63 0 0 72 0 90 93 69 69 69 69 81 81 84 87 87 90 87 87 84 81 81 0 0 69 0 0 0 0 75 72 78 69 0 0 0 63 66 66 78 78 75 0 81 0 81 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 3.125 3.125 -3.125 -3.125 -3.125 -3.125 3.125 -3.125 3.125 3.125 -3.125 -3.125 3.125 3.125 3.125 -3.125 -3.125 3.125 -3.125 -3.125 -3.125 3.125 3.125 3.125 -3.125 3.125 3.125 3.125 -3.125 -3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 -3.125 3.125 -3.125 3.125 -3.125 3.125 -3.125 -3.125 3.125 -3.125 -3.125 3.125 3.125 -3.125 3.125 -3.125 3.125 -3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 -3.125 3.125 3.125 -3.125 -3.125 3.125 3.125 -3.125 3.125 -3.125 -3.125 -3.125 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>
</SAORecord>
</SAORecordList>
