<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-13 -103 00:55:00.000"
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: 100%</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.13 (103) 00:55:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.98" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202610304130055001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.800" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.643" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.844" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.450" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.450" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.175" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="222.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="222.500" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.575" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="270.275" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.450" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.450" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="245.855" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="218.204" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="4.320" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="39.224" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.593" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="21.573" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="30.950" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="4.760" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="55">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
222.500 223.333 224.167 225.000 225.000 225.000 225.000 227.500 227.500 227.500 227.500 230.000 230.000 230.000 232.500 232.500 232.500 233.125 233.750 234.375 235.000 235.000 235.000 237.500 237.500 240.000 240.000 242.500 242.500 242.500 245.000 245.000 247.500 247.500 250.000 250.000 250.000 252.500 252.500 257.500 257.500 260.000 262.500 264.726 267.290 270.275 273.794 278.003 283.129 289.507 297.661 308.451 323.403 345.500 381.471
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
63 0 0 69 69 72 72 75 78 81 78 78 78 63 57 45 42 0 0 0 69 75 78 93 93 102 105 99 102 102 102 105 99 99 93 96 93 93 90 87 90 78 78 81 75 99 102 87 84 72 72 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 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="491">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 136.25 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 162.5 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 188.75 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 245.855 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0
</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 0.353812 0.35332385 0.3524629 0.35123456 0.3496469 0.3477836 0.34551057 0.34284618 0.3398121 0.3363646 0.33256927 0.32832938 0.32366115 0.31855893 0.31297255 0.3068771 0.30027556 0.29307804 0.2853064 0.27685073 0.26765716 0.25764734 0.24675402 0.23483722 0.22173925 0.20734549 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 0.20293333 0.2088 0.21466666 0.22053333 0.2264 0.23226666 0.23813333 0.244 0.24986666 0.25573334 0.2616 0.26746666 0.27333334 0.2792 0.28506666 0.29093334 0.2968 0.30266666 0.30853334 0.3144 0.32026666 0.32613334 0.332 0.33786666 0.34373334 0.3496 0.354 0.36022437 0.38768154 0.4193648 0.4551257 0.4944638 0.5366934 0.58120936 0.6276229 0.67571485 0.72547334 0.7770196 0.8305385 0.8863156 0.9447018 1.0061114 1.0710496 1.1400895 1.2139376 1.2934301 1.3795055 1.4733174 1.5760612 1.6889617 1.8128486 1.9476278 2.0914965 2.2403283 2.38838 2.5300677 2.661564 2.7812514 2.889164 2.9860904 3.073224 3.1516726 3.2224944 3.2866108 3.3447838 3.3976572 3.445789 3.489633 3.5295656 3.5659118 3.598959 3.628936 3.6560407 3.680441 3.702289 3.721707 3.7388003 3.7536614 3.7663617 3.776966 3.7855265 3.7920814 3.796663 3.7992918 3.8 3.7999833 3.7989662 3.7964077 3.792355 3.7868555 3.7799566 3.771706 3.7621522 3.751342 3.7393234 3.7261431 3.7118478 3.696484 3.6800973 3.6627326 3.6444345 3.6252465 3.6052115 3.5843718 3.5627685 3.5404418 3.5174315 3.4937758 3.4695127 3.4446785 3.4193091 3.393439 3.3671021 3.340331 3.3131573 3.285612 3.2577248 3.2295244 3.2010386 3.1722944 3.1433177 3.1141334 3.084766 3.055238 3.0255723 2.99579 2.9659119 2.9359577 2.905946 2.8758955 2.8458233 2.8157458 2.7856793 2.7556386 2.7256384 2.6956923 2.6658134 2.6360145 2.6063068 2.5767024 2.5472112 2.517844 2.4886098 2.459518 2.4305768 2.4017947 2.373179 2.3447368 2.316475 2.2883995 2.2605162 2.2328308 2.2053485 2.1780734 2.1510105 2.1241636 2.0975363 2.0711322 2.0449543 2.0190055 1.9932884 1.9678051 1.9425579 1.9175485 1.8927785 1.8682493 1.8439621 1.8199177 1.7961172 1.772561 1.7492496 1.7261833 1.7033622 1.6807864 1.6584556 1.6363697 1.6145281 1.5929302 1.5715758 1.5504637 1.5295932 1.5089635 1.4885734 1.4684219 1.4485079 1.42883 1.4093869 1.3901772 1.3711995 1.3524523 1.3339341 1.3156431 1.2975777 1.2797364 1.2621173 1.2447186 1.2275385 1.2105753 1.1938272 1.177292 1.160968 1.1448532 1.1289458 1.1132437 1.097745 1.0824476 1.0673497 1.0524491 1.0377438 1.023232 1.0089115 0.9947802 0.9808362 0.9670775 0.953502 0.94010776 0.92689264 0.9138548 0.90099204 0.88830245 0.8757841 0.8634349 0.8512529 0.8392362 0.82738274 0.81569064 0.8041579 0.7927827 0.78156304 0.7704971 0.7595829 0.74881864 0.7382024 0.72773236 0.71740675 0.70722365 0.69718134 0.68727803 0.67751193 0.66788125 0.6583843 0.64901936 0.63978475 0.6306787 0.6216996 0.6128458 0.6041156 0.59550744 0.5870197 0.5786508 0.57039905 0.5622631 0.5542413 0.5463321 0.53853405 0.53084564 0.5232654 0.51579195 0.50842375 0.50115937 0.49399748 0.48693666 0.47997552 0.47311273 0.46634695 0.45967686 0.45310113 0.44661847 0.44022763 0.43392733 0.4277163 0.4215934 0.41555732 0.40960693 0.403741 0.39795837 0.3922579 0.38663846 0.3810989 0.37563813 0.37025505 0.36494857 0.3597176 0.35456115 0.34947816 0.34446755 0.33952835 0.33465958 0.3298602 0.3251293 0.3204659 0.315869 0.31133774 0.30687115 0.30246833 0.2981284 0.29385045 0.2896336 0.28547704 0.28137988 0.27734128 0.2733604 0.26943648 0.26556864 0.26175615 0.2579982 0.25429404 0.25064287 0.24704395 0.24349655 0.23999994 0.2365534 0.2331562 0.22980767 0.2265071 0.2232538 0.22004713 0.21688639 0.21377094 0.21070015 0.20767337 0.20468998 0.20174934 0.19885089 0.19599397 0.19317803 0.19040246 0.18766671 0.18497019 0.18231235 0.17969264 0.17711051 0.17456543 0.17205685 0.16958429 0.1671472 0.16474508 0.16237745 0.16004378 0.15774362 0.15547647 0.15324186 0.15103933 0.14886844 0.1467287 0.14461969 0.14254095 0.14049207 0.1384726 0.13648215 0.13452026 0.13258657 0.13068064 0.12880208 0.1269505 0.12512553 0.12332677 0.121553846 0.11980639 0.118084036 0.11638642 0.1147132 0.11306402 0.111438535 0.1098364 0.108257286 0.10670086 0.1051668 0.10365479 0.10216449 0.10069562 0.09924785 0.09782089 0.09641444 0.0950282 0.093661875 0.09231519 0.09098786 0.08967961 0.088390164 0.087119244 0.08586659 0.08463195 0.083415054 0.082215644 0.081033476 0.0798683 0.07871988 0.077587955 0.07647231 0.075372696 0.0742889 0.07322067 0.07216781 0.071130075 0.07010726 0.06909915 0.06810553 0.06712621 0.066160955 0.065209575 0.064271875 0.06334766 0.06243673 0.061538897 0.060653973 0.05978177 0.05892211 0.058074806 0.057239685 0.056416575 0.055605296 0.05480568 0.054017562 0.053240776 0.05247516 0.051720552 0.050976794 0.050243728

</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="3.8" PeakHeight="245.855" Num="5" zHalfNm="218.204" Error="1.528">
-65.885 15.251 -9.707 4.448 -1.212
</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="6506.25" A="-2.20048884E11" B="6.791632E7" C="-5240.3315" Error="0.00141"/>
<QuasiParabolic ID="2" StartDistance="6506.25" EndDistance="6532.5" A="0.0" B="4203.357" C="-0.6060365" Error="0.0646"/>
<QuasiParabolic ID="3" StartDistance="6532.5" EndDistance="6558.0" A="1.20632499E9" B="-510942.06" C="49.984135" Error="0.0646"/>
<QuasiParabolic ID="4" StartDistance="6558.0" EndDistance="6560.0" A="8.6537153E12" B="-2.63927552E9" C="201236.66" Error="0.00291"/>
<QuasiParabolic ID="5" StartDistance="6560.0" EndDistance="6575.0" A="6.7358053E12" B="-2.05454682E9" C="156668.94" Error="0.0588"/>
<QuasiParabolic ID="6" StartDistance="6575.0" EndDistance="6584.0" A="5.0791084E13" B="-1.54553917E10" C="1175744.6" Error="0.0746"/>
<QuasiParabolic ID="7" StartDistance="6584.0" EndDistance="6615.855" A="-1.82902671E13" B="5.5292227E9" C="-417862.22" Error="0.0649"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="78.75" Depth="0.154"/>
<TopsideChapman PeakHeight="245.855" PeakDensity="179156.33" PeakScaleHeight="21.573" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
