<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-20 -140 21:05:00.000"
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: 90% PACIFIC flags: One of F2 cusps was derived from the other</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.20 (140) 21:05:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.22" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.99" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="75.82641" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202614005202105001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="5.200" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.881" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="20.183" 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="51" Val="5.475" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="207.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="207.500" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="5.075" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="257.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.792" 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="220.071" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="201.576" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="6.668" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="26.126" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="2.015" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="13.728" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="26.250" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.080" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="75">
<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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
207.500 207.500 207.500 207.500 210.000 210.000 210.000 210.000 210.000 212.500 212.500 212.500 212.500 212.500 212.500 213.125 213.750 214.375 215.000 215.625 216.250 216.875 217.500 217.500 217.500 220.000 220.500 221.000 221.500 222.000 222.500 222.500 222.500 223.125 223.750 224.375 225.000 226.250 227.500 227.500 227.500 228.750 230.000 230.000 230.833 231.667 232.500 233.333 234.167 235.000 235.000 237.500 237.500 240.000 240.000 240.000 242.500 242.500 245.000 245.000 247.500 247.500 247.500 250.000 252.500 252.500 255.000 255.000 257.500 257.500 260.000 262.500 265.949 270.235 275.703
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
72 75 72 84 84 75 75 78 75 72 72 60 60 84 84 57 57 0 0 0 0 81 84 84 81 69 69 81 0 0 84 84 81 78 81 69 72 69 72 72 72 72 72 48 45 45 48 57 57 84 84 84 87 84 87 72 72 84 81 87 81 108 105 93 90 93 90 93 90 105 102 90 90 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="361">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
90.562 91.0 92.0 93.0 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 132.75 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 155.5 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 178.25 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 220.071 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0
</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="0.792" PeakHeight="110.0" Num="3" Error="0.0">
-25.354 6.824 -0.908
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.792" EndFrequency="5.2" PeakHeight="220.071" Num="5" zHalfNm="201.576" Error="0.965">
-42.05 0.091 0.392 -0.633 0.379
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="17" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6460.048" EndDistance="6480.001" A="-2.76134153E12" B="8.5226592E8" C="-65760.63" Error="0.015"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6502.75" A="-1.385476E12" B="4.27616032E8" C="-32994.438" Error="0.00284"/>
<QuasiParabolic ID="2" StartDistance="6502.75" EndDistance="6525.5" A="0.0" B="5602.0977" C="-0.6380804" Error="0.0106"/>
<QuasiParabolic ID="3" StartDistance="6525.5" EndDistance="6527.0" A="-1.80886427E13" B="5.5425208E9" C="-424569.12" Error="0.0247"/>
<QuasiParabolic ID="4" StartDistance="6527.0" EndDistance="6533.0" A="2.61102843E12" B="-8.0026208E8" C="61318.938" Error="0.037"/>
<QuasiParabolic ID="5" StartDistance="6533.0" EndDistance="6541.0" A="-7.3418139E11" B="2.23833984E8" C="-17059.758" Error="0.0176"/>
<QuasiParabolic ID="6" StartDistance="6541.0" EndDistance="6542.0" A="8.0072252E12" B="-2.4489705E9" C="187251.84" Error="6.11E-11"/>
<QuasiParabolic ID="7" StartDistance="6542.0" EndDistance="6543.0" A="-7.2737132E12" B="2.22267085E9" C="-169798.08" Error="0.0"/>
<QuasiParabolic ID="8" StartDistance="6543.0" EndDistance="6544.0" A="8.0127858E12" B="-2.4499561E9" C="187272.6" Error="5.64E-11"/>
<QuasiParabolic ID="9" StartDistance="6544.0" EndDistance="6545.0" A="-7.2783165E12" B="2.22336384E9" C="-169796.45" Error="0.0"/>
<QuasiParabolic ID="10" StartDistance="6545.0" EndDistance="6546.0" A="8.0190054E12" B="-2.45114266E9" C="187308.69" Error="5.23E-11"/>
<QuasiParabolic ID="11" StartDistance="6546.0" EndDistance="6547.0" A="-1.34824088E13" B="4.1181865E9" C="-314473.25" Error="0.0"/>
<QuasiParabolic ID="12" StartDistance="6547.0" EndDistance="6549.0" A="5.3303342E13" B="-1.62837535E10" C="1243640.4" Error="0.0233"/>
<QuasiParabolic ID="13" StartDistance="6549.0" EndDistance="6552.0" A="1.41785395E13" B="-4.3354245E9" C="331414.94" Error="0.012"/>
<QuasiParabolic ID="14" StartDistance="6552.0" EndDistance="6573.0" A="4.2211429E13" B="-1.28924733E10" C="984425.4" Error="0.0325"/>
<QuasiParabolic ID="15" StartDistance="6573.0" EndDistance="6584.0" A="-3.5421937E13" B="1.07294249E10" C="-812463.25" Error="0.00684"/>
<QuasiParabolic ID="16" StartDistance="6584.0" EndDistance="6590.071" A="-1.09278682E14" B="3.31646444E10" C="-2516231.5" Error="9.68E-4"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="68.25" Depth="0.32"/>
<TopsideChapman PeakHeight="220.071" PeakDensity="335483.88" PeakScaleHeight="13.728" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
