<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-03-14 -073 19:35:00.000"
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 8 0 0 0 0 0 0 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" >
2026.03.14 (073) 19:35:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.17" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.96" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="82.25368" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202607303141935001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="23" >
<URSI ID="00" Val="14.400" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.182" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="45.818" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.700" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="30" Val="3.875" Name="foEs" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="6.375" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="81" Val="2.700" Name="fminE" Units="MHz" QL="/" DL="/" />
<URSI ID="20" Val="2.805" Name="foE" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="14.250" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="282.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="282.500" Name="h`F2" Units="km" QL="/" DL="/" />
<URSI ID="24" Val="93.291" Name="h`E" Units="km" QL="/" DL="/" />
<URSI ID="34" Val="92.500" Name="h`Es" Units="km" QL="/" DL="/" />
<URSI ID="90" Val="91.845" Name="hmE" Units="km" QL="/" DL="/" />
<URSI ID="83" Val="1.807" Name="yE" Units="km" QL="/" DL="/" />
<URSI ID="86" Val="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="13.325" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="332.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="2.650" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="10.900" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="10.900" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF2p" Val="11.042" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<Custom Name="fminEs" Val="2.825" Description="Minimum frequency of Es-layer" Units="MHz" />
</CharacteristicList>
<TraceList Num="3">
<Trace Type="standard" Layer="F2" Polarization="O" Num="322">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 9.275 9.3 9.325 9.35 9.375 9.4 9.425 9.45 9.475 9.5 9.525 9.55 9.575 9.6 9.625 9.65 9.675 9.7 9.725 9.75 9.775 9.8 9.825 9.85 9.875 9.9 9.925 9.95 9.975 10.0 10.025 10.05 10.075 10.1 10.125 10.15 10.175 10.2 10.225 10.25 10.275 10.3 10.325 10.35 10.375 10.4 10.425 10.45 10.475 10.5 10.525 10.55 10.575 10.6 10.625 10.65 10.675 10.7 10.725 10.75 10.775 10.8 10.825 10.85 10.875 10.9 10.925 10.95 10.975 11.0 11.025 11.05 11.075 11.1 11.125 11.15 11.175 11.2 11.225 11.25 11.275 11.3 11.325 11.35 11.375 11.4 11.425 11.45 11.475 11.5 11.525 11.55 11.575 11.6 11.625 11.65 11.675 11.7 11.725 11.75 11.775 11.8 11.825 11.85 11.875 11.9 11.925 11.95 11.975 12.0 12.025 12.05 12.075 12.1 12.125 12.15 12.175 12.2 12.225 12.25 12.275 12.3 12.325 12.35 12.375 12.4 12.425 12.45 12.475 12.5 12.525 12.55 12.575 12.6 12.625 12.65 12.675 12.7 12.725 12.75 12.775 12.8 12.825 12.85 12.875 12.9 12.925 12.95 12.975 13.0 13.025 13.05 13.075 13.1 13.125 13.15 13.175 13.2 13.225 13.25 13.275 13.3 13.325 13.35 13.375 13.4 13.425 13.45 13.475 13.5 13.525 13.55 13.575 13.6 13.625 13.65 13.675 13.7 13.725 13.75 13.775 13.8 13.825 13.85 13.875 13.9 13.925 13.95 13.975 14.0 14.025 14.05 14.075 14.1 14.125 14.15 14.175 14.2 14.225 14.25 14.275 14.3 14.325 14.35 14.375 14.4
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
510.000 512.500 510.000 510.000 510.000 510.000 510.000 510.000 510.000 510.000 510.000 510.000 510.000 510.000 510.000 510.000 512.500 512.500 512.500 512.500 512.500 512.500 512.500 512.500 512.500 512.500 512.500 512.734 512.969 513.203 513.438 513.672 513.906 514.141 514.375 514.609 514.844 515.078 515.313 515.547 515.781 516.016 516.250 516.484 516.719 516.953 517.188 517.422 517.656 517.891 518.125 518.359 518.594 518.828 519.063 519.297 519.531 519.766 520.000 520.000 520.000 520.000 520.000 520.000 520.000 520.000 520.000 520.000 520.000 522.500 522.500 522.500 527.500 527.500 525.000 522.500 522.500 525.000 525.000 525.000 525.000 527.500 527.500 527.500 527.500 527.500 527.500 527.500 527.500 527.500 527.500 528.750 530.000 530.000 530.000 530.000 530.000 530.000 530.000 532.500 532.500 532.500 532.500 532.500 535.000 537.500 535.000 535.000 535.000 535.000 535.000 535.000 535.000 535.000 537.500 540.000 540.000 540.000 538.750 537.500 539.167 540.833 542.500 540.000 540.000 540.000 540.500 541.000 541.500 542.000 542.500 542.500 545.000 545.625 546.250 546.875 547.500 548.000 548.500 549.000 549.500 550.000 550.625 551.250 551.875 552.500 552.500 552.500 552.500 552.500 552.500 553.125 553.750 554.375 555.000 555.526 556.053 556.579 557.105 557.632 558.158 558.684 559.211 559.737 560.263 560.789 561.316 561.842 562.368 562.895 563.421 563.947 564.474 565.000 565.000 565.000 565.000 508.500 452.000 395.500 339.000 282.500 282.500 282.500 282.500 285.000 285.000 285.000 285.000 285.000 285.000 287.500 287.500 287.500 287.500 287.500 287.500 287.500 287.500 287.500 290.000 290.000 290.000 290.000 290.000 290.000 290.000 292.500 292.500 292.500 292.500 292.500 292.500 292.500 295.000 295.000 295.000 295.000 295.000 297.500 297.500 297.500 297.500 297.500 297.500 297.500 300.000 300.000 300.000 300.000 300.000 302.500 302.500 302.500 302.500 302.500 305.000 305.000 305.000 305.000 305.000 307.500 307.500 307.500 307.500 310.000 310.000 310.000 310.000 310.000 310.000 312.500 312.500 312.500 312.500 313.750 315.000 315.000 317.500 317.500 317.500 320.000 320.000 320.000 320.000 322.500 322.500 322.500 325.000 325.000 325.000 327.500 327.500 327.500 330.000 330.000 332.500 332.500 332.500 335.000 335.000 337.500 337.500 340.000 340.000 342.500 342.500 345.000 345.000 347.500 347.500 350.000 350.000 352.500 355.000 355.000 355.000 360.000 360.000 362.500 365.000 366.667 368.333 370.000 372.500 375.000 380.000 382.500 387.500 390.000 392.500 395.000 400.000 405.000 411.250 417.500 420.000 435.000 444.292 454.353 465.281 477.195
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 72 72 75 75 72 72 0 0 0 72 72 72 0 75 75 72 0 0 0 78 81 54 54 54 51 78 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 81 84 81 81 81 81 78 78 90 90 78 75 75 81 69 72 0 75 93 87 75 81 93 84 81 81 69 66 63 66 48 48 45 36 66 0 54 54 78 78 78 78 54 51 87 87 0 81 87 90 90 90 75 75 51 51 87 90 84 0 0 0 0 0 0 0 84 84 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 84 0 0 0 90 90 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 84 0 0 0 0 0 0 0 0 0 0 0 0 0 87 90 93 93 93 93 96 96 96 96 87 90 90 90 93 57 57 93 93 93 93 60 57 96 93 57 57 54 57 93 93 57 57 93 93 93 93 57 51 90 93 60 60 60 60 60 60 60 60 60 57 60 57 57 57 57 57 60 60 60 57 57 60 96 90 57 60 84 84 69 69 45 45 42 42 69 66 66 66 93 87 54 54 90 90 54 54 51 54 54 51 51 51 48 48 48 51 51 48 51 48 51 45 45 42 45 42 48 45 48 42 45 42 39 42 75 72 39 36 0 0 0 0 36 39 0 0 0 0 33 0 33 33 0 0 0 0 0 0 33 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 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 -3.125 3.125 3.125 3.125 3.125 -3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 -3.125 3.125 3.125 -3.125 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 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 -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 -3.125 3.125 -3.125 3.125 3.125 -3.125 3.125 -3.125 -3.125 3.125 3.125 3.125 3.125 3.125 -3.125 -3.125 3.125 3.125 3.125 -3.125 -3.125 3.125 3.125 -3.125 3.125 -3.125 3.125 -3.125 3.125 -3.125 -3.125 -3.125 -3.125 3.125 3.125 3.125 -3.125 -3.125 3.125 3.125 3.125 -3.125 -3.125 3.125 3.125 3.125 3.125 3.125 3.125 -3.125 3.125 3.125 3.125 3.125 3.125 -3.125 3.125 3.125 3.125 3.125 -3.125 -3.125 3.125 -3.125 3.125 -3.125 3.125 -3.125 3.125 3.125 -3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 -3.125 3.125 3.125 3.125 3.125 -3.125 3.125 3.125 3.125 -3.125 3.125 -3.125 -3.125 3.125 -3.125 -3.125 -3.125 -3.125 3.125 3.125 3.125 -3.125 3.125 3.125 3.125 -3.125 3.125 -3.125 3.125 -3.125 3.125 3.125 3.125 -3.125 3.125 -3.125 3.125 -3.125 3.125 -3.125 -3.125 -3.125 -3.125 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="5">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.7 2.725 2.75 2.775 2.8
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
93.291 94.112 94.983 95.912 96.906
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
45 45 45 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
</TraceValueList>
</Trace>
<Trace Type="standard" Layer="Es" Polarization="O" Num="43">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
95.000 95.000 95.000 94.500 94.000 93.500 93.000 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 92.500 92.500 92.500 92.500 92.500 95.000 95.000 95.000 95.000 95.000 95.000 95.000 94.375 93.750 93.125 92.500 95.000 93.750 92.500
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
24 24 33 0 0 0 0 54 0 0 0 0 0 0 0 69 81 81 0 69 81 81 0 84 72 72 72 72 63 66 66 0 63 63 0 75 0 0 0 42 66 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 -3.125 3.125
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="3">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
90.0 91.0 91.845
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 2.477467 2.805

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="1" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="2.805" PeakHeight="91.845" Num="3" Error="0.41">
-2.713 1.125 -0.257
</ShiftedChebyshev>
</ShiftedChebyshevList>
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
