<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-13 -133 02:25:00.000"
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="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" >
2026.05.13 (133) 02:25:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.21" 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">
FF202613305130225001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.275" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.547" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.617" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.925" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.925" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.575" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="265.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="265.000" 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="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.000" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="270.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.925" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.925" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="265.785" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="246.158" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.006" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="28.094" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.857" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="15.035" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="26.890" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.540" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="15">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
265.000 267.500 268.750 270.000 280.000 287.500 290.833 292.452 294.516 297.240 301.000 306.524 315.438 332.240 375.709
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
60 63 60 66 93 93 90 90 108 105 87 87 102 102 0
</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
</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 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 146.16667 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 182.33333 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 218.5 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 265.785 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.21213934 0.23390245 0.2526677 0.26895854 0.28319094 0.29565945 0.30659118 0.31614733 0.32445762 0.331616 0.33769703 0.34275886 0.34684667 0.3499937 0.352225 0.3535571 0.354 0.3538872 0.35362422 0.35321164 0.35257575 0.35171902 0.35071892 0.34950462 0.34815413 0.3465988 0.34484506 0.3429001 0.34070218 0.33833194 0.335799 0.33304724 0.3300264 0.32682016 0.3233834 0.31967828 0.3157338 0.31158027 0.30708545 0.3023534 0.2973057 0.29203182 0.28632477 0.2803815 0.27398396 0.26722857 0.25997394 0.25233078 0.2441541 0.23540089 0.22610123 0.21613485 0.20538878 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2028387 0.20709677 0.21135484 0.2156129 0.21987097 0.22412904 0.2283871 0.23264515 0.23690322 0.24116129 0.24541935 0.24967742 0.2539355 0.25819355 0.26245162 0.2667097 0.27096775 0.27522582 0.27948388 0.28374192 0.288 0.29225805 0.29651612 0.3007742 0.30503225 0.30929032 0.3135484 0.31780645 0.32206452 0.3263226 0.33058065 0.33483872 0.33909678 0.34335485 0.34761292 0.35187095 0.354 0.36902598 0.4024762 0.44040117 0.48245347 0.52807903 0.5767211 0.6279396 0.6814475 0.7371387 0.79499334 0.8550674 0.91748947 0.9824203 1.0500493 1.1205635 1.1941358 1.2709584 1.3511678 1.4348599 1.522029 1.6125717 1.7062888 1.8027534 1.9013734 2.001415 2.1019633 2.2019835 2.3004503 2.396335 2.4887652 2.5769792 2.6604187 2.7386668 2.8114698 2.8787262 2.940378 2.9964614 3.0470724 3.092285 3.1322484 3.167065 3.196852 3.2217166 3.2417564 3.2570412 3.2676342 3.2735767 3.275 3.2749348 3.2729468 3.2682736 3.2610362 3.2513556 3.2393534 3.225151 3.2088687 3.1906252 3.1705375 3.1487207 3.1252875 3.100347 3.0740068 3.04637 3.017537 2.9876053 2.956668 2.924815 2.892133 2.8587046 2.8246088 2.7899215 2.7547147 2.7190568 2.6830132 2.6466453 2.6100118 2.573168 2.536166 2.4990547 2.4618807 2.424687 2.3875146 2.3504014 2.313383 2.2764924 2.2397606 2.203216 2.1668856 2.1307933 2.094962 2.0594122 2.0241632 1.9892325 1.9546357 1.9203874 1.8865002 1.8529862 1.8198556 1.7871177 1.7547807 1.7228516 1.6913369 1.6602414 1.6295698 1.5993257 1.5695117 1.5401301 1.5111824 1.4826696 1.4545919 1.426949 1.3997405 1.372965 1.346621 1.3207067 1.2952198 1.2701575 1.2455169 1.221295 1.1974883 1.1740931 1.1511055 1.1285216 1.106337 1.0845473 1.0631481 1.042135 1.0215029 1.001247 0.98136276 0.9618449 0.9426885 0.92388856 0.9054399 0.88733745 0.8695761 0.8521506 0.8350559 0.8182867 0.80183804 0.7857047 0.76988155 0.75436354 0.73914564 0.7242227 0.70958984 0.6952421 0.6811745 0.6673823 0.6538605 0.6406045 0.6276095 0.6148708 0.6023838 0.590144 0.5781468 0.5663879 0.55486274 0.5435672 0.5324968 0.52164745 0.511015 0.5005954 0.49038452 0.48037848 0.47057337 0.46096537 0.45155063 0.4423255 0.43328634 0.4244295 0.41575146 0.40724877 0.398918 0.39075577 0.38275883 0.3749239 0.36724782 0.35972744 0.3523597 0.34514162 0.33807018 0.33114251 0.32435572 0.31770706 0.31119373 0.30481306 0.29856238 0.2924391 0.2864407 0.28056464 0.2748085 0.2691698 0.26364627 0.25823557 0.25293538 0.2477435 0.24265777 0.23767601 0.23279613 0.2280161 0.22333385 0.21874744 0.2142549 0.20985435 0.2055439 0.20132175 0.19718608 0.19313516 0.18916723 0.18528064 0.18147372 0.17774484 0.17409241 0.17051488 0.16701074 0.16357847 0.1602166 0.15692371 0.15369838 0.15053923 0.14744493 0.14441414 0.14144556 0.13853791 0.13568996 0.13290049 0.13016829 0.12749219 0.12487105 0.122303754 0.119789176 0.11732625 0.11491392 0.11255114 0.1102369 0.10797021 0.10575009 0.10357559 0.101445764 0.099359706 0.09731652 0.095315315 0.09335524 0.09143545 0.089555115 0.08771343 0.0859096 0.08414284 0.08241241 0.08071754 0.079057515 0.07743161 0.07583914 0.074279405 0.07275173 0.07125547 0.06978997 0.0683546 0.06694874 0.06557179 0.06422315 0.06290224 0.06160849 0.060341343 0.059100255 0.057884686 0.05669411 0.05552802 0.054385908 0.05326728 0.05217166 0.05109857 0.050047547

</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="3.275" PeakHeight="265.785" Num="5" zHalfNm="246.158" Error="1.326">
-49.033 3.2 -2.245 1.242 -0.449
</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="6516.167" A="-1.16244783E11" B="3.587802E7" C="-2768.2405" Error="0.00174"/>
<QuasiParabolic ID="2" StartDistance="6516.167" EndDistance="6552.333" A="0.0" B="-987.3692" C="0.19155878" Error="0.0217"/>
<QuasiParabolic ID="3" StartDistance="6552.333" EndDistance="6584.0" A="4.7015252E10" B="-1.4413325E7" C="1104.6825" Error="0.0217"/>
<QuasiParabolic ID="4" StartDistance="6584.0" EndDistance="6587.0" A="-4.41196544E11" B="1.33889168E8" C="-10157.657" Error="0.00493"/>
<QuasiParabolic ID="5" StartDistance="6587.0" EndDistance="6600.0" A="7.7928622E12" B="-2.36620467E9" C="179617.19" Error="0.0205"/>
<QuasiParabolic ID="6" StartDistance="6600.0" EndDistance="6619.0" A="1.94916647E13" B="-5.9112965E9" C="448184.75" Error="0.0197"/>
<QuasiParabolic ID="7" StartDistance="6619.0" EndDistance="6635.785" A="-2.8373655E13" B="8.5517102E9" C="-644352.4" Error="0.00887"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="108.5" Depth="0.154"/>
<TopsideChapman PeakHeight="265.785" PeakDensity="133072.27" PeakScaleHeight="15.035" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
