<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-01 -121 21:25:00.000"
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 22 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 70% PACIFIC flags: F2 cusps do not match</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.01 (121) 21:25:00</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="75.82641" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202612105012125001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="5.975" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.627" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="21.670" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="4.875" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="4.875" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="6.175" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="237.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="237.500" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="5.625" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="273.333" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.678" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="4.875" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="4.875" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="245.872" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="223.990" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="6.189" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="31.326" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="3.145" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="16.540" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="31.450" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.090" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="45">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
237.500 237.500 237.500 237.500 240.000 240.833 241.667 242.500 243.333 244.167 245.000 245.833 246.667 247.500 247.500 250.000 250.000 252.500 252.500 254.000 255.500 257.000 258.500 260.000 262.500 265.000 265.000 267.500 270.000 271.667 273.333 275.000 280.000 282.500 285.000 287.500 290.959 294.819 299.155 304.059 309.651 316.088 323.576 332.396 342.937
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 69 0 78 66 0 0 90 0 0 66 0 0 90 78 78 66 69 90 0 0 0 0 93 90 93 81 81 102 0 0 81 99 99 78 78 66 63 87 84 60 0 0 0 87
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="440">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
90.83 91.0 92.0 93.0 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 136.69133 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 163.38266 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 190.074 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 245.872 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0
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<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="0.678" PeakHeight="110.0" Num="3" Error="0.0">
-24.462 6.011 -0.719
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.678" EndFrequency="5.975" PeakHeight="245.872" Num="5" zHalfNm="223.99" Error="1.32">
-55.378 -0.262 -0.582 0.422 0.002
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="7" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6459.973" EndDistance="6480.001" A="-2.00833198E12" B="6.1985555E8" C="-47827.902" Error="0.0401"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6506.691" A="-9.0227704E11" B="2.78480544E8" C="-21487.238" Error="0.0143"/>
<QuasiParabolic ID="2" StartDistance="6506.691" EndDistance="6533.383" A="0.0" B="1532.7411" C="-0.13745555" Error="0.0143"/>
<QuasiParabolic ID="3" StartDistance="6533.383" EndDistance="6559.0" A="4.13483696E11" B="-1.26923944E8" C="9740.242" Error="0.0282"/>
<QuasiParabolic ID="4" StartDistance="6559.0" EndDistance="6570.0" A="1.6569642E13" B="-5.053333E9" C="385285.97" Error="0.0764"/>
<QuasiParabolic ID="5" StartDistance="6570.0" EndDistance="6601.0" A="3.40947464E13" B="-1.03882199E10" C="791289.56" Error="0.0485"/>
<QuasiParabolic ID="6" StartDistance="6601.0" EndDistance="6615.872" A="-8.5222545E13" B="2.57630577E10" C="-1947028.6" Error="0.0104"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="80.074" Depth="0.367"/>
<TopsideChapman PeakHeight="245.872" PeakDensity="442935.78" PeakScaleHeight="16.54" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
