<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-02-23 -054 11:05:00.000"
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 2 0 1 0 0 0 0 0 11 0 0 0 0 0 0 0 0 0 0 "/>
<Comments>AR.5002.49 Confidence: 95% PACIFIC flags: Multiple candidates for F2x cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.02.23 (054) 11:05:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.16" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.96" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="85.88234" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202605402231105001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="36" >
<URSI ID="00" Val="7.538" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="10" Val="3.525" Name="foF1" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.191" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="24.013" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.000" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="30" Val="3.325" Name="foEs" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.975" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="81" Val="2.000" Name="fminE" Units="MHz" QL="/" DL="/" />
<URSI ID="20" Val="2.705" Name="foE" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="7.850" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="142.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="225.000" Name="h`F2" Units="km" QL="/" DL="/" />
<URSI ID="24" Val="101.712" Name="h`E" Units="km" QL="/" DL="/" />
<URSI ID="34" Val="130.833" Name="h`Es" Units="km" QL="/" DL="/" />
<URSI ID="90" Val="100.590" Name="hmE" Units="km" QL="/" DL="/" />
<URSI ID="83" Val="10.382" Name="yE" Units="km" QL="/" DL="/" />
<URSI ID="86" Val="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="6.800" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="317.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Custom Name="dlt foF2" Val="0.013" Description="Adjustment to the scaled foF2 during profile inversion" Units="MHz" />
<Modeled Name="foEp" Val="2.500" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.200" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.550" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="264.326" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="91" Val="133.470" Name="hmF1" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="186.518" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="5.762" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<Custom Name="fminEs" Val="2.725" Description="Minimum frequency of Es-layer" Units="MHz" />
<URSI ID="94" Val="107.091" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="95" Val="25.072" Name="yF1" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="18.423" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="61.640" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="120.210" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.940" Name="B1" QL="/" DL="/" />
<URSI ID="D2" Val="1.030" Name="D1" QL="/" DL="/" />
<URSI ID="32" Val="2.975" Name="fbEs" Units="MHz" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="4">
<Trace Type="standard" Layer="F2" Polarization="O" Num="160">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
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</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
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</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
</TraceValueList>
</Trace>
<Trace Type="standard" Layer="F1" Polarization="O" Num="23">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
157.500 155.000 152.500 150.000 145.000 145.000 145.000 144.167 143.333 142.500 142.500 142.500 142.500 143.750 145.000 145.000 156.429 167.857 179.286 190.714 202.143 213.571 225.000
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
51 57 57 57 78 81 78 69 78 69 0 63 60 60 93 87 0 0 0 0 0 0 63
</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
</TraceValueList>
</Trace>
<Trace Type="standard" Layer="E" Polarization="O" Num="29">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.0 2.025 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 2.65 2.675 2.7
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
101.712 101.940 102.176 102.420 102.674 102.936 103.209 103.493 103.789 104.097 104.420 104.757 105.111 105.484 105.876 106.292 106.733 107.203 107.707 108.250 108.839 109.483 110.194 110.990 111.896 112.951 114.220 115.823 118.030
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
36 39 0 36 0 39 42 0 63 39 39 24 27 30 0 0 0 51 51 42 39 39 39 0 45 42 45 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 -3.125 -3.125 -3.125 3.125 3.125
</TraceValueList>
</Trace>
<Trace Type="standard" Layer="Es" Polarization="O" Num="25">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
119.167 120.833 122.500 124.167 125.833 127.500 129.167 130.833 132.500 134.167 135.833 137.500 139.167 140.833 142.500 142.500 142.500 141.667 140.833 140.000 140.000 140.000 140.000 140.000 140.000
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 0 0 0 0 0 0 0 0 0 0 54 78 81 78 78 78 81 78 78 75 69 93
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
3.125 -3.125 3.125 -3.125 -21.875 -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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="916">
<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 99.0 100.0 100.59 101.0 102.0 103.0 104.0 105.0 106.0 106.19133 107.0 108.0 109.0 110.0 111.0 111.79266 112.0 113.0 114.0 115.0 116.0 117.0 117.394 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 133.47 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 264.326 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 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