<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-16 -106 09:30:00.000"
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: 100%</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.16 (106) 09:30:00</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">
FF202610604160930001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.550" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.337" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="8.510" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.050" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.050" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="2.925" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="285.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="285.000" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.475" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="333.387" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.847" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.050" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.050" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="257.996" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="216.851" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.769" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="53.043" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.080" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="29.025" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="64.140" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.480" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="21">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.05 2.075 2.1 2.125 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
285.000 287.500 287.500 290.000 291.667 293.333 295.000 297.500 300.000 302.500 305.000 307.500 312.500 316.250 320.000 323.750 327.500 333.387 340.236 348.302 357.943
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
54 51 51 51 0 0 78 54 54 42 0 42 39 0 0 0 69 51 0 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="584">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
90.469 91.0 92.0 93.0 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 133.92667 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 157.85333 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 181.78 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 257.996 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0 600.0 601.0 602.0 603.0 604.0 605.0 606.0 607.0 608.0 609.0 610.0 611.0 612.0 613.0 614.0 615.0 616.0 617.0 618.0 619.0 620.0 621.0 622.0 623.0 624.0 625.0 626.0 627.0 628.0 629.0 630.0 631.0 632.0 633.0 634.0 635.0 636.0 637.0 638.0 639.0 640.0 641.0 642.0 643.0 644.0 645.0 646.0 647.0 648.0 649.0 650.0 651.0 652.0 653.0 654.0 655.0 656.0 657.0 658.0 659.0 660.0 661.0 662.0 663.0 664.0 665.0 666.0 667.0 668.0 669.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.2541602 0.36491963 0.44746825 0.5110656 0.56317604 0.60735893 0.6455634 0.6789497 0.7082744 0.73405683 0.756671 0.7763946 0.7934319 0.8079405 0.82004285 0.8298326 0.837379 0.8427356 0.84593546 0.847 0.8464924 0.8449718 0.8423557 0.8387553 0.83410627 0.82844603 0.821645 0.8137673 0.80471885 0.7945145 0.7831104 0.77049536 0.7565468 0.74113744 0.72429496 0.70587707 0.6857518 0.6637115 0.63961023 0.613119 0.58388 0.5513176 0.5147007 0.469 0.469 0.469 0.469 0.469 0.469 0.469 0.469 0.469 0.469 0.469 0.469 0.469 0.469 0.469 0.469 0.469 0.469 0.469 0.469 0.469 0.469 0.469 0.469 0.469 0.469 0.47131708 0.48711535 0.50291365 0.5187119 0.5345102 0.55030847 0.56610674 0.581905 0.5977033 0.61350155 0.6292998 0.6450981 0.66089636 0.67669463 0.6924929 0.7082912 0.72408944 0.7398877 0.755686 0.77148426 0.7872825 0.8030808 0.81887907 0.83467734 0.847 0.8524895 0.8773003 0.902058 0.9269333 0.95205534 0.97751695 1.0033886 1.0297079 1.056513 1.0838083 1.1115835 1.1398093 1.1684442 1.1974356 1.2267113 1.2562014 1.285824 1.3155013 1.3451507 1.3747084 1.4041059 1.4332883 1.4622089 1.4908328 1.5191237 1.5470757 1.5746602 1.6018803 1.6287314 1.6552085 1.6813276 1.7070818 1.7324938 1.7575668 1.7823092 1.8067387 1.8308673 1.8547008 1.8782591 1.9015521 1.9245915 1.947385 1.9699453 1.992285 2.0144155 2.0363379 2.0580645 2.079604 2.100961 2.12214 2.143149 2.1639895 2.1846635 2.2051668 2.2255034 2.2456706 2.2656548 2.2854526 2.3050466 2.3244228 2.3435535 2.3624165 2.38097 2.3991635 2.4169457 2.434235 2.4509492 2.4669669 2.4821582 2.4963608 2.509381 2.5210035 2.5309923 2.539097 2.5450869 2.5487652 2.55 2.55 2.549704 2.54883 2.5473905 2.5453985 2.5428672 2.5398095 2.536239 2.5321684 2.527611 2.52258 2.5170887 2.5111496 2.5047762 2.4979813 2.4907775 2.4831777 2.4751945 2.4668405 2.4581277 2.4490685 2.439675 2.4299593 2.4199328 2.4096072 2.398994 2.3881044 2.3769493 2.3655398 2.3538864 2.3419995 2.3298895 2.3175666 2.3050406 2.292321 2.2794175 2.2663395 2.2530959 2.2396955 2.2261472 2.2124593 2.19864 2.1846979 2.1706402 2.156475 2.1422098 2.1278515 2.1134076 2.098885 2.0842903 2.06963 2.0549102 2.0401378 2.025318 2.010457 1.9955606 1.9806341 1.9656827 1.9507116 1.9357259 1.9207304 1.9057294 1.890728 1.87573 1.8607401 1.845762 1.8307998 1.8158573 1.800938 1.7860457 1.7711835 1.7563547 1.7415626 1.7268102 1.7121003 1.6974357 1.6828191 1.6682532 1.6537402 1.6392827 1.6248828 1.6105427 1.5962645 1.5820501 1.5679015 1.5538204 1.5398084 1.5258673 1.5119987 1.4982038 1.4844841 1.470841 1.4572756 1.4437892 1.430383 1.4170576 1.4038144 1.3906542 1.3775779 1.3645861 1.3516796 1.3388592 1.3261255 1.313479 1.3009202 1.2884498 1.2760681 1.2637753 1.2515721 1.2394587 1.2274352 1.2155021 1.2036594 1.1919073 1.1802459 1.1686753 1.1571957 1.1458069 1.134509 1.123302 1.1121858 1.1011604 1.0902257 1.0793813 1.0686275 1.0579636 1.0473897 1.0369056 1.0265111 1.0162058 1.0059893 0.9958616 0.98582214 0.9758708 0.9660071 0.9562307 0.9465413 0.9369384 0.92742175 0.9179908 0.9086452 0.89938456 0.89020836 0.88111615 0.87210757 0.86318207 0.8543391 0.8455784 0.8368993 0.8283013 0.81978405 0.8113469 0.80298936 0.79471093 0.78651106 0.7783893 0.77034503 0.76237774 0.7544869 0.74667203 0.7389325 0.73126775 0.7236773 0.71616054 0.7087169 0.701346 0.69404703 0.6868196 0.6796631 0.672577 0.6655608 0.65861374 0.6517354 0.6449253 0.63818276 0.6315072 0.6248982 0.6183551 0.6118773 0.6054644 0.5991158 0.59283084 0.58660907 0.58044994 0.5743529 0.5683174 0.5623429 0.5564288 0.55057466 0.5447799 0.539044 0.53336644 0.5277467 0.5221842 0.51667845 0.5112289 0.5058351 0.5004965 0.4952126 0.4899829 0.48480687 0.47968403 0.47461385 0.46959585 0.46462956 0.45971447 0.45485008 0.45003596 0.44527155 0.44055647 0.43589017 0.4312722 0.4267021 0.42217946 0.41770372 0.4132745 0.4088913 0.4045537 0.40026125 0.3960135 0.39181003 0.38765037 0.3835341 0.37946084 0.3754301 0.37144148 0.36749458 0.36358896 0.35972422 0.35589996 0.35211575 0.3483712 0.34466594 0.34099954 0.33737165 0.33378184 0.33022973 0.32671496 0.32323715 0.3197959 0.31639087 0.3130217 0.30968797 0.3063894 0.30312556 0.29989612 0.29670075 0.29353908 0.2904108 0.2873155 0.28425288 0.28122264 0.27822438 0.27525783 0.27232262 0.26941845 0.266545 0.26370195 0.260889 0.2581058 0.25535208 0.25262752 0.24993183 0.24726468 0.24462582 0.24201491 0.23943171 0.23687588 0.23434716 0.23184527 0.22936994 0.22692087 0.2244978 0.22210045 0.21972857 0.21738188 0.21506011 0.21276301 0.21049033 0.2082418 0.20601717 0.20381619 0.20163862 0.1994842 0.1973527 0.19524388 0.1931575 0.19109331 0.18905109 0.18703061 0.18503164 0.18305396 0.18109733 0.17916153 0.17724636 0.17535159 0.173477 0.17162238 0.16978753 0.16797222 0.16617626 0.16439945 0.16264157 0.16090244 0.15918185 0.15747961 0.15579551 0.15412939 0.15248103 0.15085025 0.14923687 0.1476407 0.14606157 0.14449927 0.14295366 0.14142454 0.13991174 0.13841508 0.1369344 0.13546953 0.13402028 0.13258652 0.13116807 0.12976477 0.12837644 0.12700294 0.1256441 0.12429979 0.12296983 0.12165408 0.12035238 0.119064584 0.11779055 0.11653013 0.11528317 0.11404954 0.11282908 0.11162167 0.11042716 0.10924543 0.10807631 0.10691969 0.10577544 0.10464341 0.103523485 0.10241553 0.101319425 0.10023503 0.099162236 0.0981009 0.09705092 0.09601217 0.09498452 0.093967855 0.092962064 0.091967024 0.09098263 0.090008765 0.08904531 0.08809216 0.0871492 0.08621633 0.08529344 0.08438042 0.08347716 0.08258356 0.08169953 0.08082495 0.07995972 0.07910375 0.078256935 0.077419184 0.07659039 0.07577047 0.074959315 0.074156836 0.07336295 0.07257755 0.07180056 0.071031876 0.070271425 0.06951911 0.06877484 0.06803854 0.06731011 0.06658948 0.06587656 0.06517127 0.064473525 0.06378325 0.06310036 0.062424783 0.06175643 0.06109523 0.06044111 0.059793986 0.05915379 0.058520447 0.05789388 0.05727402 0.056660794 0.056054134 0.055453964 0.05486022 0.054272827 0.053691726 0.053116843 0.05254811 0.05198547 0.05142885 0.05087819 0.05033342

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.847" PeakHeight="110.0" Num="3" Error="0.0">
-25.712 7.184 -1.003
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.847" EndFrequency="2.55" PeakHeight="257.996" Num="5" zHalfNm="216.851" Error="1.161">
-69.623 -11.269 7.084 -3.119 0.711
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="8" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6459.966" EndDistance="6480.001" A="-3.13213321E12" B="9.6670778E8" C="-74590.93" Error="0.00548"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6503.927" A="-1.53918911E12" B="4.750584E8" C="-36655.023" Error="0.00614"/>
<QuasiParabolic ID="2" StartDistance="6503.927" EndDistance="6527.853" A="0.0" B="4325.86" C="-0.4438037" Error="0.00614"/>
<QuasiParabolic ID="3" StartDistance="6527.853" EndDistance="6549.0" A="4.0718916E11" B="-1.25410376E8" C="9656.254" Error="0.00494"/>
<QuasiParabolic ID="4" StartDistance="6549.0" EndDistance="6555.0" A="3.3967778E12" B="-1.03840128E9" C="79360.86" Error="0.00948"/>
<QuasiParabolic ID="5" StartDistance="6555.0" EndDistance="6573.0" A="2.04482478E12" B="-6.2590605E8" C="47896.69" Error="0.0025"/>
<QuasiParabolic ID="6" StartDistance="6573.0" EndDistance="6620.0" A="7.0323274E10" B="-2.5114484E7" C="2195.2183" Error="0.00857"/>
<QuasiParabolic ID="7" StartDistance="6620.0" EndDistance="6627.996" A="-1.06147936E13" B="3.20301747E9" C="-241621.39" Error="0.00181"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="71.78" Depth="0.378"/>
<TopsideChapman PeakHeight="257.996" PeakDensity="80676.18" PeakScaleHeight="29.025" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
