<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-13 -103 22:20:00.000"
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: 100%</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.13 (103) 22:20:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" 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">
FF202610304132220001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.725" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.778" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="14.073" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.225" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.225" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.225" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="200.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="200.000" 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="3.500" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="253.386" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.370" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.225" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.225" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="225.388" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="200.563" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="6.236" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="35.234" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.368" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="19.157" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="29.420" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.900" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="61">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
200.000 200.000 200.000 200.000 202.500 202.500 202.500 202.500 205.000 205.000 205.000 205.000 207.500 207.500 207.500 207.500 207.500 210.000 210.000 212.500 212.500 212.500 212.500 215.000 215.000 217.500 217.500 218.333 219.167 220.000 220.000 222.500 222.500 222.500 225.000 225.000 227.500 227.500 230.000 230.000 232.500 232.500 232.500 235.000 237.500 240.000 242.500 244.245 246.173 248.312 250.701 253.386 256.424 259.892 263.886 268.537 274.022 280.586 288.582 298.537 311.272
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
57 57 42 42 39 39 0 51 66 66 54 57 57 57 57 54 51 60 60 60 60 63 63 63 36 33 30 0 0 54 60 57 72 72 69 72 72 75 75 75 72 72 81 78 66 69 69 66 81 81 69 66 69 69 66 63 63 66 63 60 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
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</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="429">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.173 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 225.388 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0
</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="0.37" PeakHeight="110.0" Num="3" Error="0.0">
-19.335 2.676 -0.168
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.37" EndFrequency="3.725" PeakHeight="225.388" Num="5" zHalfNm="200.563" Error="1.206">
-58.988 11.124 -7.18 3.009 -0.353
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="12" EarthRadius="6370.0">
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<QuasiParabolic ID="2" StartDistance="6501.0" EndDistance="6522.0" A="0.0" B="-424.34952" C="0.12491485" Error="0.00528"/>
<QuasiParabolic ID="3" StartDistance="6522.0" EndDistance="6542.0" A="7.6793782E10" B="-2.3668134E7" C="1823.6656" Error="0.00528"/>
<QuasiParabolic ID="4" StartDistance="6542.0" EndDistance="6544.0" A="1.37795448E13" B="-4.21283072E9" C="321998.12" Error="0.0"/>
<QuasiParabolic ID="5" StartDistance="6544.0" EndDistance="6549.0" A="3.39788064E12" B="-1.03995053E9" C="79571.45" Error="0.00425"/>
<QuasiParabolic ID="6" StartDistance="6549.0" EndDistance="6553.0" A="7.5103428E12" B="-2.29585587E9" C="175456.73" Error="0.00152"/>
<QuasiParabolic ID="7" StartDistance="6553.0" EndDistance="6557.0" A="1.35788642E13" B="-4.1479913E9" C="316776.4" Error="0.00301"/>
<QuasiParabolic ID="8" StartDistance="6557.0" EndDistance="6560.0" A="2.71247611E13" B="-8.2797271E9" C="631839.4" Error="0.00131"/>
<QuasiParabolic ID="9" StartDistance="6560.0" EndDistance="6568.0" A="5.126499E13" B="-1.5639553E10" C="1192801.8" Error="0.00592"/>
<QuasiParabolic ID="10" StartDistance="6568.0" EndDistance="6585.0" A="-2.54061283E13" B="7.7073157E9" C="-584517.8" Error="0.00444"/>
<QuasiParabolic ID="11" StartDistance="6585.0" EndDistance="6595.388" A="-1.89142495E13" B="5.7355986E9" C="-434805.03" Error="3.7E-4"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="63.0" Depth="0.126"/>
<TopsideChapman PeakHeight="225.388" PeakDensity="172154.16" PeakScaleHeight="19.157" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
