<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-21 -294 02:45:00.000"
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="15.0">
<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 55 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 0% PACIFIC flags: F2x cusp not found, Multiple candidates for F2x cusp, Multiple candidates for F2o cusp, F2 cusps do not match, Unidentified traces above foF2, Trace overlaps while constructing baseline</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.10.21 (294) 02:45:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.32" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-16.06" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="62.486557" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202629410210245001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="23" >
<URSI ID="00" Val="6.500" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.515" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="22.850" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.350" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.350" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="272.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="272.500" 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="0.025" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="6.500" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="321.160" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.350" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.350" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="288.090" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="271.924" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="5.751" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="24.843" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="2.808" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="11.693" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="30.140" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.210" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="127">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
272.500 273.750 275.000 277.500 276.250 275.000 279.167 283.333 287.500 280.000 300.000 302.500 305.000 307.500 310.000 310.278 310.556 310.833 311.111 311.389 311.667 311.944 312.222 312.500 311.250 310.000 308.750 307.500 307.500 307.500 305.000 305.000 305.000 306.250 307.500 310.000 310.000 310.000 310.000 310.000 310.000 310.000 310.000 310.000 310.000 310.000 310.000 310.000 310.000 310.000 310.000 310.000 310.000 310.000 305.833 301.667 297.500 293.333 289.167 285.000 295.000 293.333 291.667 290.000 287.500 288.750 290.000 288.750 287.500 290.000 290.000 290.000 290.000 290.000 290.000 290.000 290.000 285.000 288.125 291.250 294.375 297.500 297.500 300.000 305.000 301.250 297.500 302.500 302.500 302.500 302.500 302.500 290.000 302.500 302.500 302.500 302.500 302.500 302.500 302.500 302.500 302.500 303.333 304.167 305.000 306.250 307.500 307.500 308.750 310.000 311.250 312.500 312.500 314.000 315.500 317.000 318.500 320.000 321.500 323.000 324.500 326.000 322.500 321.250 320.000 320.833 321.160
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
90 90 93 0 0 0 0 0 0 75 78 78 0 0 90 0 0 0 0 84 84 0 90 0 0 0 0 87 84 87 87 0 93 0 102 90 84 87 87 0 87 0 72 66 63 60 63 60 0 84 0 0 0 0 0 0 0 0 0 93 84 60 0 102 108 90 93 0 93 105 102 63 63 99 99 99 105 96 84 69 72 105 105 99 93 96 99 99 99 102 105 102 93 105 102 99 99 96 99 102 102 102 102 99 102 93 102 99 96 93 93 0 99 0 0 0 0 0 93 0 0 0 90 93 99 96 96
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-1.5625 -1.5625 1.5625 1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 1.5625 1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 1.5625 -1.5625 -1.5625 1.5625 1.5625 -1.5625 -1.5625 1.5625 -1.5625 1.5625 -1.5625 -1.5625 1.5625 1.5625 1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 1.5625 1.5625 1.5625 1.5625 -1.5625 1.5625 -1.5625 1.5625 1.5625 -1.5625 -1.5625 1.5625 1.5625 1.5625 1.5625 -1.5625 -1.5625 1.5625 1.5625 1.5625 -1.5625 -1.5625 -1.5625 1.5625 1.5625 -1.5625 -1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 1.5625 -1.5625 -1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="400">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 146.239 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 182.478 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 218.717 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 288.09 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0
</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="0.354" PeakHeight="110.0" Num="3" Error="0.0">
-18.791 2.435 -0.142
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.354" EndFrequency="6.5" PeakHeight="288.09" Num="5" zHalfNm="271.924" Error="1.926">
-59.571 -18.525 13.109 -5.225 0.839
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="8" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6460.0205" EndDistance="6480.001" A="-5.5027394E11" B="1.69837632E8" C="-13104.63" Error="0.0016"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6516.239" A="-1.15784204E11" B="3.5735864E7" C="-2757.2717" Error="0.00175"/>
<QuasiParabolic ID="2" StartDistance="6516.239" EndDistance="6552.478" A="0.0" B="-6853.9624" C="1.0918618" Error="0.146"/>
<QuasiParabolic ID="3" StartDistance="6552.478" EndDistance="6589.0" A="1.29810637E11" B="-3.9623948E7" C="3023.7915" Error="0.146"/>
<QuasiParabolic ID="4" StartDistance="6589.0" EndDistance="6596.0" A="1.0242159E13" B="-3.10908774E9" C="235947.12" Error="0.0756"/>
<QuasiParabolic ID="5" StartDistance="6596.0" EndDistance="6638.0" A="1.50743066E13" B="-4.5742628E9" C="347012.56" Error="0.0625"/>
<QuasiParabolic ID="6" StartDistance="6638.0" EndDistance="6656.0" A="5.7121752E13" B="-1.72429722E10" C="1301269.0" Error="0.00933"/>
<QuasiParabolic ID="7" StartDistance="6656.0" EndDistance="6658.09" A="-8.3738555E14" B="2.51539259E11" C="-1.8889704E7" Error="0.00162"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="108.717" Depth="0.154"/>
<TopsideChapman PeakHeight="288.09" PeakDensity="524193.56" PeakScaleHeight="11.693" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
