<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-19 -109 21:50:00.000"
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 2 0 0 0 0 0 0 0 11 0 0 0 0 0 0 0 0 1 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" >
2026.04.19 (109) 21:50:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.20" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.98" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202610904192150001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.150" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.873" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="16.072" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.000" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.000" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.550" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="192.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="192.500" Name="h`F2" 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="0.125" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.975" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="250.806" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.520" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.000" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.000" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="213.849" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="189.536" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="6.726" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="34.393" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.644" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="18.439" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="28.950" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.730" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="87">
<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 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
192.500 192.500 192.500 192.500 192.500 192.500 192.500 192.500 192.500 192.500 192.500 192.500 192.500 192.500 192.500 193.750 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 197.500 197.500 197.500 197.500 198.750 200.000 200.000 200.000 200.000 200.000 201.250 202.500 202.500 202.500 202.500 202.500 202.500 202.500 205.000 205.000 205.000 205.000 207.500 207.500 207.500 207.500 210.000 212.500 212.500 212.500 212.500 215.000 215.000 217.500 217.500 217.500 220.000 222.500 222.500 225.000 225.000 227.500 230.000 230.000 232.500 232.500 237.500 240.000 242.500 242.500 245.000 247.500 250.806 254.582 258.936 264.012 270.006 277.191 285.961 296.908
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
57 57 57 57 54 69 72 72 69 60 57 45 45 42 42 0 54 72 69 60 63 63 60 60 60 57 57 60 60 60 60 54 60 36 39 36 33 0 51 57 57 72 69 69 69 72 72 72 69 72 72 69 66 93 84 69 69 69 69 69 66 72 69 69 66 69 66 69 66 51 54 36 36 60 60 75 75 60 60 63 60 60 60 84 81 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 3.125 3.125 3.125 3.125 3.125 3.125 3.125 3.125 -3.125 3.125 3.125 -3.125 -3.125 3.125 3.125 -3.125 -3.125 3.125 -3.125 3.125 3.125 -3.125 -3.125 -3.125 -3.125 3.125 -3.125 3.125 -3.125 3.125 3.125 3.125 -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="418">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
91.515 92.0 93.0 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 129.25 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 148.5 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 167.75 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 213.849 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
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</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.52" PeakHeight="110.0" Num="3" Error="0.0">
-22.619 4.571 -0.437
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.52" EndFrequency="4.15" PeakHeight="213.849" Num="5" zHalfNm="189.536" Error="0.986">
-52.917 11.435 -5.782 0.84 0.325
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="11" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6460.004" EndDistance="6480.001" A="-1.18503178E12" B="3.6575056E8" C="-28221.223" Error="0.0142"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6499.25" A="-6.2425609E11" B="1.92671632E8" C="-14866.367" Error="7.36E-4"/>
<QuasiParabolic ID="2" StartDistance="6499.25" EndDistance="6518.5" A="0.0" B="-10918.549" C="1.8199495" Error="0.0362"/>
<QuasiParabolic ID="3" StartDistance="6518.5" EndDistance="6536.0" A="3.27389413E11" B="-1.00585272E8" C="7725.9434" Error="0.0369"/>
<QuasiParabolic ID="4" StartDistance="6536.0" EndDistance="6538.0" A="4.0176816E12" B="-1.2298057E9" C="94110.61" Error="0.012"/>
<QuasiParabolic ID="5" StartDistance="6538.0" EndDistance="6539.0" A="6.5037675E13" B="-1.9896062E10" C="1521631.0" Error="0.0"/>
<QuasiParabolic ID="6" StartDistance="6539.0" EndDistance="6540.0" A="-5.9246595E13" B="1.81171732E10" C="-1385024.0" Error="1.38E-9"/>
<QuasiParabolic ID="7" StartDistance="6540.0" EndDistance="6541.0" A="5.0168276E13" B="-1.53430333E10" C="1173095.6" Error="5.9E-10"/>
<QuasiParabolic ID="8" StartDistance="6541.0" EndDistance="6547.0" A="8.7160196E12" B="-2.66844006E9" C="204238.2" Error="0.0398"/>
<QuasiParabolic ID="9" StartDistance="6547.0" EndDistance="6555.0" A="8.2126871E13" B="-2.50942382E10" C="1916915.6" Error="0.036"/>
<QuasiParabolic ID="10" StartDistance="6555.0" EndDistance="6583.849" A="-2.7271157E13" B="8.2842593E9" C="-629117.75" Error="0.00591"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="57.75" Depth="0.146"/>
<TopsideChapman PeakHeight="213.849" PeakDensity="213678.66" PeakScaleHeight="18.439" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
