<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-02 -092 07:20:00.000"
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="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 11 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 90% PACIFIC flags: Multiple candidates for F2x cusp, Multiple candidates for F2o cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.02 (092) 07:20:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.97" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202609204020720001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="5.825" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="4.005" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="23.331" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.150" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.150" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="6.125" 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="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="5.575" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="235.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.150" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.150" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="213.717" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="191.971" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.860" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="30.802" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="2.857" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="16.513" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="24.780" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="4.310" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="148">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
192.500 192.500 192.500 192.500 192.500 192.500 192.500 192.500 192.500 192.500 192.500 192.500 192.500 192.500 192.500 192.500 192.500 192.500 192.500 192.500 192.500 192.500 192.500 192.500 192.500 192.500 192.500 192.857 193.214 193.571 193.929 194.286 194.643 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 197.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 200.000 200.000 200.000 200.000 200.000 200.000 200.000 200.000 200.000 200.000 200.000 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 205.000 205.000 205.000 205.000 205.000 205.000 205.000 205.000 205.000 205.000 207.500 207.500 207.500 207.500 207.500 207.500 207.500 207.500 210.000 210.000 210.000 210.000 210.000 210.000 210.000 212.500 212.500 212.500 212.500 212.500 215.000 215.000 215.000 215.000 215.000 217.500 217.500 217.500 217.500 220.000 220.000 220.000 222.500 222.500 222.500 225.000 227.500 227.500 227.500 230.000 230.000 232.500 232.500 232.500 235.000 235.000 237.158 239.738 242.876 246.774 251.748 258.315 267.384 280.724 302.280 343.018
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
90 78 81 0 78 0 0 0 78 90 90 93 93 96 96 96 96 81 81 81 81 81 81 78 81 93 87 0 0 0 0 0 0 84 84 96 96 108 108 108 108 108 105 108 108 105 105 105 105 108 105 105 105 96 93 96 93 93 90 75 75 75 78 75 72 81 81 96 96 99 96 105 105 96 99 99 99 75 78 102 99 99 96 99 99 102 102 102 102 102 99 75 72 72 75 75 75 99 99 108 105 96 96 96 99 108 111 108 111 75 75 111 108 72 75 75 75 72 75 75 72 72 72 108 108 111 108 108 99 72 75 72 72 72 72 111 111 75 72 72 72 72 72 99 93 63 57 51
</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="403">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 129.25 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 148.5 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 167.75 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 213.717 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0
</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="5.825" PeakHeight="213.717" Num="5" zHalfNm="191.971" Error="0.806">
-52.767 12.222 -6.957 1.68 -0.145
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="12" 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="6499.25" A="-2.90721038E11" B="8.972872E7" C="-6923.387" Error="9.59E-4"/>
<QuasiParabolic ID="2" StartDistance="6499.25" EndDistance="6518.5" A="0.0" B="1594.6372" C="-0.18077923" Error="0.0103"/>
<QuasiParabolic ID="3" StartDistance="6518.5" EndDistance="6520.0" A="-4.16215151E12" B="1.27667738E9" C="-97900.32" Error="0.0236"/>
<QuasiParabolic ID="4" StartDistance="6520.0" EndDistance="6534.0" A="2.07406825E11" B="-6.3677948E7" C="4887.6606" Error="0.0363"/>
<QuasiParabolic ID="5" StartDistance="6534.0" EndDistance="6536.0" A="-1.77124645E12" B="5.4197043E8" C="-41458.254" Error="2.47E-4"/>
<QuasiParabolic ID="6" StartDistance="6536.0" EndDistance="6543.0" A="8.4048656E12" B="-2.57189478E9" C="196750.55" Error="0.0387"/>
<QuasiParabolic ID="7" StartDistance="6543.0" EndDistance="6544.0" A="1.88179546E13" B="-5.7548657E9" C="439985.38" Error="0.0"/>
<QuasiParabolic ID="8" StartDistance="6544.0" EndDistance="6546.0" A="1.76524729E13" B="-5.3986673E9" C="412769.72" Error="0.00268"/>
<QuasiParabolic ID="9" StartDistance="6546.0" EndDistance="6550.0" A="4.5217512E13" B="-1.38206167E10" C="1056059.4" Error="0.0105"/>
<QuasiParabolic ID="10" StartDistance="6550.0" EndDistance="6558.0" A="1.7689566E14" B="-5.4027686E10" C="4125301.5" Error="0.0252"/>
<QuasiParabolic ID="11" StartDistance="6558.0" EndDistance="6583.717" A="-6.6847567E13" B="2.03069379E10" C="-1542175.2" Error="0.00419"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="57.75" Depth="0.1"/>
<TopsideChapman PeakHeight="213.717" PeakDensity="420975.5" PeakScaleHeight="16.513" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
