<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-02-06 -037 09:45:00.000"
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 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" >
2026.02.06 (037) 09:45:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.15" 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">
FF202603702060945001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="21" >
<URSI ID="00" Val="5.250" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="10" Val="2.350" Name="foF1" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.285" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="17.247" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.000" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.075" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="81" Val="2.000" Name="fminE" Units="MHz" QL="/" DL="/" />
<URSI ID="20" Val="2.055" Name="foE" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="5.725" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="137.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="227.500" Name="h`F2" Units="km" QL="/" DL="/" />
<URSI ID="24" Val="114.254" Name="h`E" 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="0.350" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="4.950" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="326.072" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="1.856" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.075" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.950" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF2p" Val="4.637" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
</CharacteristicList>
<TraceList Num="3">
<Trace Type="standard" Layer="F2" Polarization="O" Num="112">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 4.975 5.0 5.025 5.05 5.075 5.1 5.125 5.15 5.175 5.2 5.225 5.25
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
267.500 257.500 247.500 245.000 242.500 240.000 237.500 235.000 232.500 230.000 230.000 230.000 230.000 230.000 230.000 230.000 229.375 228.750 228.125 227.500 227.500 230.000 230.000 230.000 227.500 227.500 227.500 230.000 230.000 230.000 230.000 230.000 232.500 232.500 232.500 233.500 234.500 235.500 236.500 237.500 238.500 239.500 240.500 241.500 242.500 242.500 242.500 242.500 245.000 245.000 245.000 247.500 247.500 250.000 250.000 250.000 252.500 252.500 252.500 255.000 255.000 257.500 257.500 257.500 260.000 262.500 265.000 265.000 265.000 265.000 267.500 272.500 272.500 272.500 275.000 275.000 277.500 280.000 282.500 282.500 285.000 287.500 290.000 292.500 292.500 292.500 295.000 295.000 297.500 300.000 302.500 305.000 307.021 309.181 311.495 313.980 316.655 319.544 322.672 326.072 329.779 333.838 338.302 343.233 348.709 354.827 361.706 369.496 378.393 388.650 400.605 414.717
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
51 54 36 39 45 0 48 48 42 39 0 0 39 0 15 18 0 0 0 15 48 39 36 45 78 75 75 0 63 63 78 78 78 75 84 0 0 0 0 0 0 0 0 0 42 51 57 57 57 60 57 54 63 57 63 66 96 99 108 111 96 93 105 99 0 90 72 75 72 66 54 54 63 66 78 78 81 81 57 57 57 57 54 48 42 42 63 57 72 75 78 75 63 60 66 72 96 96 93 90 0 0 90 90 87 0 0 0 0 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 -21.875 -3.125 3.125 -3.125 -3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 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 9.375 -3.125 -3.125 -3.125 3.125 -3.125 -3.125
</TraceValueList>
</Trace>
<Trace Type="standard" Layer="F1" Polarization="O" Num="12">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.075 2.1 2.125 2.15 2.175 2.2 2.225 2.25 2.275 2.3 2.325 2.35
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
137.500 155.000 161.250 167.500 167.500 181.250 195.000 196.667 198.333 200.000 202.500 205.000
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 33 0 60 45 0 21 0 21 0 0 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 -3.125 -3.125 -3.125 -21.875 -21.875 3.125
</TraceValueList>
</Trace>
<Trace Type="standard" Layer="E" Polarization="O" Num="3">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.0 2.025 2.05
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
114.254 116.503 120.222
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
42 39 36
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
3.125 -3.125 3.125
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="22">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
89.744 90.0 91.0 92.0 93.0 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.22330895 0.6647687 1.01963 1.2330219 1.3997096 1.5394922 1.6603956 1.7666311 1.8607022 1.9442328 2.0183702 2.0838904 2.1414034 2.19135 2.2340918 2.269871 2.298902 2.3213353 2.3372843 2.346825 2.35

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="1" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="2.35" PeakHeight="110.0" Num="3" Error="0.0">
-29.151 11.228 -2.333
</ShiftedChebyshev>
</ShiftedChebyshevList>
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
