<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-04 -124 00:25:00.000"
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: 100%</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.04 (124) 00:25:00</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">
FF202612405040025001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.975" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.156" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.547" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.950" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.950" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.350" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="292.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="292.500" 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="3.775" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="353.653" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.950" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.950" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="306.199" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="271.743" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.789" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="49.502" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="2.178" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="26.226" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="48.360" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.280" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="42">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 3.825 3.85 3.875 3.9 3.925 3.95 3.975
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
292.500 295.000 295.000 295.000 297.500 297.500 300.000 300.000 302.500 302.500 305.000 305.000 307.500 307.500 310.000 310.000 312.500 315.000 315.000 315.000 317.500 320.000 322.500 322.500 327.500 327.500 330.000 332.500 340.000 340.000 342.500 345.000 350.000 353.653 357.956 363.098 369.353 377.124 387.041 400.133 418.217 444.817
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 72 75 84 87 99 99 102 99 99 96 99 96 99 99 99 99 96 99 99 96 84 87 87 84 84 84 84 78 81 81 69 66 63 0 72 72 99 96 93 96 93
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="627">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 146.07834 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 182.15666 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 218.235 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 306.199 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0 600.0 601.0 602.0 603.0 604.0 605.0 606.0 607.0 608.0 609.0 610.0 611.0 612.0 613.0 614.0 615.0 616.0 617.0 618.0 619.0 620.0 621.0 622.0 623.0 624.0 625.0 626.0 627.0 628.0 629.0 630.0 631.0 632.0 633.0 634.0 635.0 636.0 637.0 638.0 639.0 640.0 641.0 642.0 643.0 644.0 645.0 646.0 647.0 648.0 649.0 650.0 651.0 652.0 653.0 654.0 655.0 656.0 657.0 658.0 659.0 660.0 661.0 662.0 663.0 664.0 665.0 666.0 667.0 668.0 669.0 670.0 671.0 672.0 673.0 674.0 675.0 676.0 677.0 678.0 679.0 680.0 681.0 682.0 683.0 684.0 685.0 686.0 687.0 688.0 689.0 690.0 691.0 692.0 693.0 694.0 695.0 696.0 697.0 698.0 699.0 700.0 701.0 702.0 703.0 704.0 705.0 706.0 707.0 708.0 709.0 710.0 711.0 712.0 713.0 714.0 715.0
</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 0.34652644 0.34477356 0.34282959 0.34063274 0.3382637 0.335732 0.3329153 0.32989746 0.3266944 0.32319918 0.31949958 0.315561 0.31135726 0.3068714 0.30209666 0.29706162 0.29170617 0.2860193 0.27992907 0.27348948 0.26670748 0.25944394 0.2517522 0.24348904 0.2346978 0.22531177 0.21517718 0.2044168 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 0.20359977 0.20786825 0.21213675 0.21640523 0.22067373 0.2249422 0.2292107 0.23347919 0.23774768 0.24201617 0.24628466 0.25055316 0.25482163 0.25909013 0.26335862 0.26762712 0.2718956 0.27616408 0.28043258 0.28470108 0.28896955 0.29323804 0.29750654 0.30177504 0.3060435 0.310312 0.3145805 0.318849 0.32311746 0.32738596 0.33165446 0.33592296 0.34019142 0.34445992 0.34872842 0.35299692 0.354 0.36842078 0.3885281 0.41004196 0.43293288 0.4571395 0.4825897 0.5092147 0.53693897 0.565694 0.5954245 0.62608176 0.6576299 0.69004506 0.7233089 0.7574205 0.7923771 0.8281802 0.86484087 0.90239143 0.9408307 0.98018956 1.0204887 1.0617616 1.1040193 1.1473012 1.1916296 1.237031 1.28353 1.3311387 1.3799022 1.4298156 1.4808953 1.5331571 1.5866059 1.6412355 1.697037 1.7539722 1.8120431 1.8711946 1.9313849 1.992535 2.0545928 2.117448 2.1810308 2.2452085 2.309862 2.3748684 2.4400713 2.5053227 2.5704913 2.6353846 2.6998553 2.7637622 2.8269339 2.8892195 2.950487 3.010595 3.0694282 3.1268625 3.1827958 3.23715 3.2898293 3.3407655 3.3898988 3.4371724 3.482555 3.5260015 3.5674922 3.6069894 3.6444945 3.679983 3.7134569 3.7448967 3.7743127 3.8017013 3.8270657 3.8504062 3.8717258 3.891036 3.9083347 3.9236298 3.9369268 3.9482298 3.9575431 3.9648705 3.9702146 3.9735775 3.9749608 3.975 3.9746401 3.9731958 3.9706714 3.9670947 3.9624932 3.9568949 3.9503272 3.9428182 3.9343958 3.9250872 3.9149206 3.9039233 3.8921223 3.8795447 3.8662176 3.8521676 3.8374207 3.822003 3.8059397 3.7892566 3.7719784 3.7541294 3.7357337 3.7168155 3.6973972 3.6775022 3.6571527 3.6363704 3.615177 3.5935931 3.5716398 3.5493367 3.5267034 3.503759 3.4805222 3.4570112 3.4332435 3.4092367 3.385007 3.360571 3.3359444 3.3111427 3.2861807 3.2610729 3.2358334 3.210476 3.1850133 3.1594586 3.1338239 3.1081214 3.0823627 3.0565586 3.0307202 3.0048578 2.9789813 2.9531004 2.9272244 2.9013624 2.875523 2.8497143 2.8239443 2.798221 2.7725513 2.7469425 2.7214012 2.695934 2.6705472 2.6452465 2.6200376 2.5949259 2.5699165 2.5450144 2.5202243 2.4955509 2.470998 2.44657 2.4222703 2.3981028 2.3740706 2.3501775 2.326426 2.3028195 2.27936 2.2560508 2.2328937 2.2098913 2.1870453 2.164358 2.1418307 2.1194656 2.0972638 2.075227 2.0533562 2.031653 2.0101178 1.988752 1.9675564 1.9465315 1.9256783 1.904997 1.8844882 1.8641524 1.8439896 1.8240004 1.8041846 1.7845423 1.7650735 1.7457784 1.7266566 1.707708 1.6889322 1.6703291 1.6518981 1.6336391 1.6155515 1.5976346 1.579888 1.5623112 1.5449034 1.527664 1.5105922 1.4936875 1.4769489 1.4603755 1.4439669 1.4277217 1.4116395 1.3957189 1.3799593 1.3643597 1.3489192 1.3336364 1.3185108 1.303541 1.288726 1.2740649 1.2595565 1.2451998 1.2309936 1.2169368 1.2030283 1.189267 1.1756518 1.1621815 1.1488549 1.1356708 1.1226282 1.1097258 1.0969626 1.0843372 1.0718486 1.0594956 1.047277 1.0351914 1.0232381 1.0114155 0.99972254 0.9881581 0.97672105 0.96541005 0.9542241 0.9431619 0.93222237 0.92140436 0.91070664 0.90012807 0.8896675 0.87932384 0.8690959 0.8589826 0.84898275 0.83909523 0.82931894 0.81965274 0.8100956 0.80064636 0.79130393 0.7820672 0.77293515 0.76390666 0.7549806 0.7461561 0.73743194 0.72880715 0.7202807 0.7118515 0.70351857 0.69528085 0.68713737 0.67908716 0.67112917 0.6632624 0.655486 0.6477989 0.64020014 0.63268876 0.62526387 0.6179245 0.6106697 0.6034986 0.5964102 0.58940375 0.5824782 0.57563275 0.5688665 0.56217855 0.5555681 0.5490342 0.5425761 0.53619283 0.52988374 0.52364784 0.5174844 0.51139265 0.5053717 0.49942073 0.49353907 0.48772588 0.4819804 0.47630188 0.47068954 0.46514264 0.45966044 0.45424223 0.44888726 0.44359484 0.43836424 0.43319476 0.4280857 0.4230364 0.41804618 0.4131143 0.40824017 0.40342307 0.39866242 0.3939575 0.38930774 0.38471243 0.38017103 0.37568286 0.37124732 0.36686382 0.36253175 0.35825053 0.35401958 0.3498383 0.3457061 0.34162244 0.3375868 0.33359852 0.32965717 0.32576212 0.32191288 0.3181089 0.31434965 0.31063464 0.30696332 0.30333522 0.2997498 0.2962066 0.2927051 0.28924483 0.2858253 0.28244606 0.27910662 0.27580652 0.27254528 0.2693225 0.2661377 0.26299042 0.25988024 0.25680673 0.2537695 0.25076804 0.24780197 0.2448709 0.2419744 0.23911206 0.23628351 0.23348832 0.23072611 0.22799651 0.22529912 0.22263356 0.21999948 0.21739648 0.21482421 0.21228233 0.20977044 0.20728822 0.20483533 0.2024114 0.2000161 0.19764908 0.19531003 0.19299862 0.19071451 0.18845738 0.18622693 0.18402283 0.18184479 0.17969248 0.17756559 0.17546386 0.17338696 0.17133462 0.16930653 0.16730241 0.165322 0.16336499 0.16143113 0.15952012 0.15763173 0.15576564 0.15392163 0.15209943 0.15029877 0.14851941 0.14676109 0.14502357 0.1433066 0.14160994 0.13993335 0.13827659 0.13663943 0.13502163 0.13342297 0.13184322 0.13028218 0.1287396 0.12721525 0.12570895 0.124220476 0.12274961 0.12129615 0.11985989 0.11844062 0.117038146 0.11565227 0.114282794 0.11292952 0.11159227 0.11027084 0.108965054 0.10767472 0.106399655 0.10513969 0.10389463 0.10266431 0.10144854 0.100247175 0.09906003 0.09788693 0.09672772 0.09558223 0.0944503 0.09333177 0.092226475 0.09113427 0.090055 0.0889885 0.08793463 0.08689323 0.085864164 0.08484728 0.083842434 0.08284948 0.08186829 0.08089871 0.07994062 0.07899386 0.07805832 0.07713385 0.076220326 0.07531762 0.0744256 0.073544145 0.07267313 0.07181242 0.07096191 0.07012147 0.06929097 0.068470314 0.06765938 0.06685804 0.06606619 0.065283716 0.06451051 0.06374646 0.062991455 0.062245395 0.061508168 0.06077967 0.060059797 0.059348453 0.058645528 0.05795093 0.05726456 0.056586314 0.0559161 0.055253826 0.054599393 0.05395271 0.053313684 0.05268223 0.05205825 0.051441662 0.050832372 0.050230302

</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="3.975" PeakHeight="306.199" Num="5" zHalfNm="271.743" Error="1.554">
-90.1 3.656 -2.567 1.647 -0.6
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="10" 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="6516.078" A="-1.16812595E11" B="3.6053272E7" C="-2781.763" Error="0.00174"/>
<QuasiParabolic ID="2" StartDistance="6516.078" EndDistance="6552.157" A="0.0" B="-602.57355" C="0.13250995" Error="0.0136"/>
<QuasiParabolic ID="3" StartDistance="6552.157" EndDistance="6587.0" A="3.9473697E10" B="-1.2116805E7" C="929.852" Error="0.0136"/>
<QuasiParabolic ID="4" StartDistance="6587.0" EndDistance="6591.0" A="3.96622614E12" B="-1.20439027E9" C="91431.86" Error="0.013"/>
<QuasiParabolic ID="5" StartDistance="6591.0" EndDistance="6598.0" A="1.93264878E12" B="-5.8731315E8" C="44619.76" Error="0.0122"/>
<QuasiParabolic ID="6" StartDistance="6598.0" EndDistance="6611.0" A="3.61289194E12" B="-1.09663206E9" C="83216.23" Error="0.00365"/>
<QuasiParabolic ID="7" StartDistance="6611.0" EndDistance="6647.0" A="8.3717836E12" B="-2.53632102E9" C="192102.1" Error="0.0198"/>
<QuasiParabolic ID="8" StartDistance="6647.0" EndDistance="6665.0" A="-1.1793091E13" B="3.53104026E9" C="-264296.38" Error="0.00605"/>
<QuasiParabolic ID="9" StartDistance="6665.0" EndDistance="6676.199" A="-1.54400299E13" B="4.6253957E9" C="-346393.56" Error="2.03E-4"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="108.235" Depth="0.154"/>
<TopsideChapman PeakHeight="306.199" PeakDensity="196037.53" PeakScaleHeight="26.226" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
