<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-02-20 -051 02:15:00.000"
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="15.0">
<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" >
2026.02.20 (051) 02:15:00</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">
FF202605102200215001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="21" >
<URSI ID="00" Val="6.825" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.746" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="18.740" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.125" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="30" Val="4.050" Name="foEs" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.050" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="7.175" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="97.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="97.500" Name="h`F2" Units="km" QL="/" DL="/" />
<URSI ID="34" Val="97.500" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="6.300" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="425.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.050" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.050" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF2p" Val="5.304" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<Custom Name="fminEs" Val="2.125" Description="Minimum frequency of Es-layer" Units="MHz" />
<URSI ID="32" Val="3.050" Name="fbEs" Units="MHz" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="2">
<Trace Type="standard" Layer="F2" Polarization="O" Num="152">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
97.500 97.500 99.167 100.833 102.500 101.667 100.833 100.000 100.000 102.500 101.250 100.000 100.000 100.000 109.135 118.269 127.404 136.538 145.673 154.808 163.942 173.077 182.212 191.346 200.481 209.615 218.750 227.885 237.019 246.154 255.288 264.423 273.558 282.692 291.827 300.962 310.096 319.231 328.365 337.500 337.500 338.333 339.167 340.000 345.000 342.500 342.500 342.500 342.500 343.333 344.167 345.000 345.000 345.000 345.000 346.250 347.500 348.333 349.167 350.000 350.000 350.000 350.000 350.000 350.000 352.500 355.000 355.000 356.250 357.500 357.500 357.500 355.000 355.000 357.500 360.000 360.000 360.000 360.000 360.000 367.500 367.500 360.000 365.000 363.750 362.500 363.750 365.000 362.500 360.000 367.500 367.500 368.500 369.500 370.500 371.500 372.500 373.750 375.000 377.500 377.500 375.000 380.000 381.000 382.000 383.000 384.000 385.000 387.500 387.500 389.464 391.429 393.393 395.357 397.321 399.286 401.250 403.214 405.179 407.143 409.107 411.071 413.036 415.000 415.625 416.250 416.875 417.500 420.000 422.500 425.000 430.000 435.000 437.592 440.429 443.548 446.992 450.816 455.086 459.884 465.316 471.515 478.657 486.974 496.783 508.523 522.830 540.646 563.443 593.650 635.582 697.707
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
99 111 108 108 111 99 96 99 93 93 0 111 111 111 105 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 96 93 60 0 78 81 84 84 72 75 66 72 87 84 84 87 66 57 72 69 90 96 63 63 84 84 90 84 84 84 87 84 99 102 63 66 66 63 57 60 102 93 60 57 60 54 63 63 96 93 90 90 90 93 0 0 54 63 66 63 99 96 54 57 57 60 63 57 87 96 96 96 99 99 96 99 99 0 93 96 93 93 60 63 60 60 60 54 90 93 0 93 96 93 96 90 93 90 93 93 87 90 96 87 93 90 93 0 90 87 81 0 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-1.5625 -1.5625 -1.5625 1.5625 1.5625 -1.5625 1.5625 -1.5625 1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 1.5625 -1.5625 -1.5625 -1.5625 -1.5625 1.5625 4.6875 -1.5625 -1.5625 -1.5625 -1.5625 10.9375 1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 1.5625 1.5625 1.5625 -1.5625 -1.5625 -1.5625 1.5625 1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 1.5625 1.5625 -1.5625 -1.5625 -1.5625 1.5625 1.5625 -1.5625 -1.5625 -1.5625 -1.5625 1.5625 1.5625 1.5625 -1.5625 -1.5625 1.5625 -1.5625 -1.5625 -1.5625 1.5625 -1.5625 -1.5625 -1.5625 -1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 -1.5625 1.5625 -1.5625 -1.5625 -1.5625 1.5625 -1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 -1.5625 -1.5625 1.5625 1.5625 1.5625 -1.5625 -1.5625 -1.5625 1.5625 -1.5625 1.5625 -1.5625 1.5625 -1.5625 1.5625 1.5625 1.5625 -1.5625 -1.5625 -1.5625 -1.5625 1.5625 -1.5625 1.5625 1.5625 -1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 -1.5625 1.5625 1.5625 1.5625 -1.5625 -1.5625 1.5625 1.5625 -1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 -1.5625 -1.5625 1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625
</TraceValueList>
</Trace>
<Trace Type="standard" Layer="Es" Polarization="O" Num="78">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
100.000 102.500 101.500 100.500 99.500 98.500 97.500 97.500 97.500 97.500 97.500 97.500 97.500 97.500 97.500 97.500 97.500 97.500 97.500 100.000 102.500 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 102.500 101.667 100.833 100.000 100.000 100.000 100.000 101.250 102.500 105.000 105.000 105.000 105.000 105.000 105.000 105.000 105.000 105.000 105.000 105.000 105.000 105.000 107.500 102.500 103.750 105.000 106.250 107.500 107.500 107.500 107.500 106.667 105.833 105.000 105.000 102.500 103.750 105.000 105.000 105.000 107.500 110.000 105.000 105.000 105.000 107.500 107.500 107.500
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
75 69 0 0 0 0 51 0 57 57 66 69 72 69 69 69 75 78 78 75 66 69 60 72 66 66 48 63 54 54 60 0 81 90 90 96 99 84 105 108 108 111 93 96 90 93 93 84 105 0 96 111 108 105 0 0 0 0 0 0 81 72 0 78 75 0 0 75 96 102 0 99 0 66 99 99 96 96
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
1.5625 1.5625 -1.5625 1.5625 -1.5625 -1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 -1.5625 1.5625 -1.5625 -1.5625 -1.5625 -1.5625 1.5625 1.5625 1.5625 -1.5625 1.5625 1.5625 -1.5625 -1.5625 1.5625 1.5625 1.5625 -1.5625 -1.5625 -1.5625 1.5625 -1.5625 -1.5625 -1.5625 -1.5625 1.5625 -1.5625 1.5625 1.5625 1.5625 1.5625 -1.5625 1.5625 1.5625 1.5625 -1.5625 1.5625 1.5625 1.5625 -1.5625 1.5625 1.5625 1.5625 1.5625 -1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 -1.5625 -1.5625 1.5625 -1.5625 1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 1.5625 -1.5625 -1.5625 -1.5625 -1.5625 1.5625
</TraceValueList>
</Trace>
</TraceList>
</SAORecord>
</SAORecordList>
