<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-02 -122 23:50:00.000"
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 33 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 60% PACIFIC flags: Multiple candidates for F2x cusp, Multiple candidates for F2o cusp, One of F2 cusps was derived from the other, Unidentified traces above foF2</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.02 (122) 23:50:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.20" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.98" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="75.82641" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202612205022350001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="23" >
<URSI ID="00" Val="3.925" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.373" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.238" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.200" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.200" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.175" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="295.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="295.000" 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="88" Val="3.900" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="340.332" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.200" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.200" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="282.950" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="259.051" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.985" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="34.540" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.463" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="17.642" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="35.760" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.790" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="30">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
295.000 295.000 297.500 298.750 300.000 300.000 302.500 302.500 302.500 305.000 307.500 307.500 310.000 310.000 312.500 312.500 313.863 315.311 316.853 318.497 320.255 322.138 324.160 326.337 328.689 331.237 334.005 337.025 340.332 343.970
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
93 93 93 0 90 93 90 96 93 96 93 84 78 84 84 84 81 78 0 0 0 0 0 0 0 0 0 0 0 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 1.5625 1.5625 1.5625 1.5625 -1.5625 1.5625 -10.9375 -1.5625 -4.6875 -1.5625 -1.5625 -1.5625 4.6875 1.5625 -1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="469">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 145.32167 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 180.64333 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 215.965 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 282.95 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0
</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 0.35313663 0.35250106 0.35164472 0.35057107 0.34928447 0.34786305 0.34623858 0.34434634 0.3423376 0.34007883 0.33758232 0.33486158 0.33199707 0.3288067 0.3254419 0.32179746 0.3179021 0.31378588 0.30936888 0.30464274 0.29966098 0.29435676 0.28868982 0.28267035 0.2762521 0.269513 0.2622155 0.2545297 0.24630232 0.23748498 0.22815034 0.21800633 0.20720956 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 0.20155504 0.20591497 0.2102749 0.21463484 0.21899477 0.2233547 0.22771463 0.23207456 0.23643449 0.24079442 0.24515434 0.24951427 0.2538742 0.25823414 0.26259407 0.266954 0.27131394 0.27567387 0.2800338 0.28439373 0.28875366 0.2931136 0.29747352 0.30183342 0.30619335 0.31055328 0.3149132 0.31927314 0.32363307 0.327993 0.33235294 0.33671287 0.3410728 0.34543273 0.34979266 0.354 0.3552328 0.3882827 0.4192322 0.44963002 0.48023826 0.5115132 0.54379976 0.5773546 0.61240894 0.6491623 0.6877947 0.72845984 0.77129674 0.8164048 0.86385006 0.9136774 0.9658641 1.0203522 1.0770504 1.135825 1.1965148 1.2589128 1.3228434 1.38808 1.4544295 1.5217109 1.5897543 1.6584193 1.7275552 1.7970469 1.8668087 1.9367486 2.0068 2.0769148 2.1470258 2.2171018 2.2870872 2.3569665 2.4266996 2.4962466 2.565585 2.634659 2.7034526 2.771915 2.839971 2.9075868 2.9746835 3.0411837 3.1069818 3.1719878 3.236045 3.299026 3.3607485 3.4210083 3.4795778 3.5361934 3.590549 3.642317 3.6911016 3.7365136 3.7781017 3.815409 3.8479505 3.8752828 3.8969734 3.9126596 3.922058 3.925 3.9249969 3.923659 3.9199507 3.913961 3.9057796 3.8954966 3.8832023 3.8689866 3.8529387 3.8351474 3.8156998 3.7946825 3.77218 3.7482758 3.723051 3.6965857 3.6689568 3.6402407 3.6105103 3.5798373 3.5482907 3.5159376 3.4828422 3.449067 3.4146724 3.3797157 3.3442528 3.3083367 3.2720187 3.2353475 3.19837 3.161131 3.1236727 3.0860362 3.0482597 3.0103803 2.9724326 2.9344494 2.8964627 2.8585014 2.8205938 2.7827663 2.7450438 2.7074494 2.6700053 2.6327322 2.595649 2.5587738 2.5221236 2.4857142 2.4495597 2.4136739 2.3780692 2.3427572 2.3077483 2.2730522 2.2386782 2.204634 2.1709268 2.1375635 2.1045496 2.071891 2.0395918 2.0076563 1.976088 1.9448899 1.9140643 1.8836135 1.853539 1.8238419 1.794523 1.7655829 1.7370214 1.7088385 1.6810335 1.6536057 1.6265538 1.5998766 1.5735725 1.5476398 1.5220764 1.49688 1.4720485 1.4475793 1.4234697 1.3997169 1.376318 1.3532699 1.3305696 1.3082138 1.2861992 1.2645224 1.2431799 1.2221683 1.2014838 1.181123 1.161082 1.1413573 1.121945 1.1028414 1.0840428 1.0655452 1.047345 1.0294383 1.0118213 0.99448997 0.9774408 0.96066976 0.94417316 0.92794716 0.911988 0.8962919 0.88085514 0.86567396 0.8507447 0.83606374 0.8216273 0.8074319 0.7934738 0.7797496 0.7662556 0.75298846 0.73994464 0.72712076 0.71451336 0.7021191 0.68993473 0.6779569 0.66618234 0.6546079 0.6432304 0.63204664 0.62105364 0.6102482 0.59962744 0.58918834 0.5789279 0.56884325 0.5589316 0.54919 0.53961575 0.5302061 0.52095824 0.51186967 0.5029377 0.4941596 0.485533 0.47705528 0.46872395 0.46053663 0.45249087 0.4445843 0.43681458 0.42917943 0.42167655 0.41430372 0.40705878 0.3999395 0.3929438 0.38606957 0.37931475 0.37267733 0.36615527 0.3597466 0.35344943 0.34726185 0.34118196 0.33520794 0.32933795 0.32357025 0.31790304 0.31233463 0.3068633 0.3014874 0.29620525 0.29101527 0.28591588 0.2809055 0.27598256 0.2711456 0.26639315 0.2617237 0.2571358 0.25262812 0.24819921 0.24384771 0.2395723 0.23537165 0.23124444 0.22718944 0.22320537 0.219291 0.21544512 0.21166654 0.2079541 0.20430662 0.200723 0.19720212 0.19374289 0.19034423 0.18700509 0.18372443 0.18050124 0.17733449 0.17422323 0.17116648 0.16816327 0.1652127 0.16231383 0.15946576 0.1566676 0.15391849 0.15121756 0.14856398 0.14595692 0.14339556 0.1408791 0.13840677 0.13597777 0.13359138 0.13124683 0.1289434 0.12668034 0.124456994 0.12227264 0.12012659 0.11801818 0.115946755 0.11391166 0.111912265 0.10994794 0.10801808 0.10612208 0.10425933 0.10242926 0.100631304 0.09886489 0.09712947 0.0954245 0.09374944 0.09210378 0.09048699 0.08889857 0.08733802 0.085804865 0.08429861 0.082818784 0.08136493 0.07993659 0.078533314 0.077154666 0.07580022 0.07446954 0.073162206 0.07187783 0.070615984 0.0693763 0.06815836 0.0669618 0.06578624 0.06463132 0.06349667 0.062381938 0.06128677 0.060210824 0.05915376 0.05811526 0.057094984 0.056092616 0.055107847 0.05414036 0.05318986 0.05225604 0.051338617 0.050437298

</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="3.925" PeakHeight="282.95" Num="5" zHalfNm="259.051" Error="1.268">
-64.394 -4.811 3.213 -1.793 0.8
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="9" 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="6515.322" A="-1.21843532E11" B="3.7606028E7" C="-2901.5745" Error="0.00171"/>
<QuasiParabolic ID="2" StartDistance="6515.322" EndDistance="6550.643" A="0.0" B="342.63007" C="-0.0125570735" Error="0.00631"/>
<QuasiParabolic ID="3" StartDistance="6550.643" EndDistance="6581.0" A="3.2104364E10" B="-9879873.0" C="760.10626" Error="0.00631"/>
<QuasiParabolic ID="4" StartDistance="6581.0" EndDistance="6583.0" A="-1.01625384E12" B="3.08721632E8" C="-23446.055" Error="0.00438"/>
<QuasiParabolic ID="5" StartDistance="6583.0" EndDistance="6592.0" A="4.07647447E12" B="-1.23851469E9" C="94071.516" Error="0.0749"/>
<QuasiParabolic ID="6" StartDistance="6592.0" EndDistance="6594.0" A="-1.56085584E12" B="4.71840352E8" C="-35658.086" Error="0.00283"/>
<QuasiParabolic ID="7" StartDistance="6594.0" EndDistance="6642.0" A="8.9027007E12" B="-2.70181939E9" C="204989.45" Error="0.0445"/>
<QuasiParabolic ID="8" StartDistance="6642.0" EndDistance="6652.95" A="-4.2555656E13" B="1.27930194E10" C="-961439.2" Error="0.00772"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="105.965" Depth="0.154"/>
<TopsideChapman PeakHeight="282.95" PeakDensity="191136.78" PeakScaleHeight="17.642" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
