<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-13 -103 00:00:00.000"
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) 00:00:00</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">
FF202610304130000001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.375" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.113" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="10.506" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.475" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.475" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.700" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="302.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="302.500" 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="3.200" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="361.035" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.475" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.475" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="308.854" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="271.883" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="4.901" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="52.975" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.676" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="27.749" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="52.820" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.090" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="37">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
302.500 302.500 303.929 305.357 306.786 308.214 309.643 311.071 312.500 312.500 313.750 315.000 317.500 317.500 320.000 322.500 325.000 326.875 328.750 330.625 332.500 335.000 337.500 340.000 343.333 346.667 350.000 352.500 356.555 361.035 366.012 371.571 377.822 384.902 392.989 402.313 413.182
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 63 0 0 0 0 0 0 63 66 0 66 66 69 45 42 54 0 0 0 66 69 81 78 0 0 90 90 90 0 0 87 0 0 87 84 72
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="639">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 145.145 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 180.29 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 215.435 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 308.854 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0 600.0 601.0 602.0 603.0 604.0 605.0 606.0 607.0 608.0 609.0 610.0 611.0 612.0 613.0 614.0 615.0 616.0 617.0 618.0 619.0 620.0 621.0 622.0 623.0 624.0 625.0 626.0 627.0 628.0 629.0 630.0 631.0 632.0 633.0 634.0 635.0 636.0 637.0 638.0 639.0 640.0 641.0 642.0 643.0 644.0 645.0 646.0 647.0 648.0 649.0 650.0 651.0 652.0 653.0 654.0 655.0 656.0 657.0 658.0 659.0 660.0 661.0 662.0 663.0 664.0 665.0 666.0 667.0 668.0 669.0 670.0 671.0 672.0 673.0 674.0 675.0 676.0 677.0 678.0 679.0 680.0 681.0 682.0 683.0 684.0 685.0 686.0 687.0 688.0 689.0 690.0 691.0 692.0 693.0 694.0 695.0 696.0 697.0 698.0 699.0 700.0 701.0 702.0 703.0 704.0 705.0 706.0 707.0 708.0 709.0 710.0 711.0 712.0 713.0 714.0 715.0 716.0 717.0 718.0 719.0 720.0 721.0 722.0 723.0 724.0 725.0 726.0 727.0
</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 0.3524263 0.35157037 0.35049725 0.34928474 0.34779045 0.34616676 0.34427544 0.34219727 0.33994073 0.33744666 0.33466148 0.3317355 0.32855144 0.32513052 0.3214646 0.31752056 0.31336027 0.30884913 0.3040923 0.29903507 0.29366744 0.28795043 0.28180936 0.27537805 0.26849538 0.26117092 0.25331548 0.24501097 0.2360879 0.2264668 0.2162316 0.20523089 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 0.20311111 0.20749296 0.2118748 0.21625665 0.2206385 0.22502035 0.22940218 0.23378403 0.23816589 0.24254774 0.24692957 0.25131142 0.25569326 0.26007512 0.26445696 0.26883882 0.27322066 0.2776025 0.28198436 0.2863662 0.29074803 0.2951299 0.29951173 0.3038936 0.30827543 0.31265727 0.31703913 0.32142097 0.3258028 0.33018467 0.3345665 0.33894837 0.3433302 0.34771204 0.3520939 0.354 0.36493358 0.3843275 0.4038931 0.4237274 0.44391617 0.4645287 0.4856236 0.5072545 0.5294618 0.5522977 0.57579297 0.5999896 0.62491924 0.65060574 0.6770865 0.7043801 0.7325132 0.76149905 0.79135835 0.82210356 0.85373914 0.88627636 0.9197037 0.95403093 0.989245 1.0253302 1.0622768 1.1000628 1.1386722 1.1780679 1.2182195 1.2591019 1.3006701 1.3429015 1.3857381 1.429144 1.4730798 1.5174965 1.5623497 1.6075995 1.6531897 1.699075 1.7452079 1.7915506 1.8380555 1.8846662 1.9313414 1.9780419 2.0247076 2.0713031 2.1177828 2.1641016 2.2102106 2.2560744 2.301635 2.3468635 2.3917003 2.436112 2.4800434 2.5234625 2.566315 2.6085532 2.6501408 2.6910315 2.7311704 2.7705207 2.8090293 2.8466563 2.8833542 2.9190784 2.9537718 2.9874067 3.019917 3.0512717 3.0814238 3.1103263 3.137934 3.1642103 3.1891086 3.2125945 3.2346249 3.255162 3.2741756 3.291631 3.3074968 3.321744 3.3343494 3.3452861 3.3545353 3.362081 3.367908 3.3720047 3.3743641 3.375 3.374991 3.3744428 3.3730607 3.3708644 3.3678737 3.3641083 3.359588 3.3543327 3.3483627 3.3416977 3.3343573 3.3263617 3.3177304 3.3084834 3.2986395 3.2882183 3.277239 3.2657206 3.2536814 3.2411406 3.2281158 3.2146254 3.2006872 3.1863184 3.1715364 3.1563582 3.1408005 3.1248796 3.1086113 3.092012 3.0750964 3.05788 3.0403776 3.0226038 3.0045724 2.9862974 2.9677927 2.9490712 2.9301457 2.9110289 2.8917332 2.8722703 2.852652 2.8328896 2.812994 2.7929761 2.7728462 2.7526143 2.7322905 2.711884 2.6914043 2.6708603 2.6502607 2.6296139 2.6089277 2.5882106 2.56747 2.546713 2.525947 2.505179 2.484415 2.4636621 2.4429262 2.4222133 2.401529 2.3808792 2.3602686 2.3397028 2.3191864 2.2987244 2.278321 2.257981 2.237708 2.2175064 2.1973798 2.177332 2.1573663 2.137486 2.1176944 2.0979946 2.0783894 2.0588815 2.0394735 2.0201678 2.000967 1.9818732 1.9628882 1.9440143 1.9252534 1.906607 1.8880769 1.8696647 1.8513718 1.8331994 1.815149 1.7972214 1.7794181 1.76174 1.7441877 1.7267624 1.7094647 1.6922952 1.6752546 1.6583434 1.6415623 1.6249114 1.6083913 1.592002 1.575744 1.5596175 1.5436225 1.5277591 1.5120273 1.4964272 1.4809586 1.4656215 1.4504157 1.4353411 1.4203974 1.4055845 1.3909018 1.3763492 1.3619263 1.3476326 1.333468 1.3194318 1.3055235 1.2917427 1.2780889 1.2645615 1.25116 1.2378838 1.2247323 1.2117047 1.1988007 1.1860194 1.1733601 1.1608223 1.1484052 1.136108 1.1239302 1.1118709 1.0999293 1.0881047 1.0763965 1.0648037 1.0533255 1.0419613 1.0307102 1.0195714 1.0085441 0.9976274 0.9868205 0.97612274 0.96553314 0.9550509 0.94467515 0.9344051 0.9242399 0.91417867 0.90422064 0.8943649 0.88461065 0.874957 0.8654032 0.85594827 0.8465915 0.8373319 0.82816875 0.81910115 0.81012833 0.8012493 0.7924634 0.7837697 0.7751674 0.7666557 0.7582337 0.74990064 0.74165565 0.733498 0.7254268 0.7174412 0.70954055 0.70172393 0.6939906 0.6863397 0.6787705 0.6712822 0.66387403 0.6565452 0.649295 0.64212257 0.6350272 0.6280081 0.6210646 0.61419594 0.60740125 0.60067993 0.5940313 0.58745444 0.5809487 0.5745135 0.56814796 0.5618515 0.5556233 0.5494628 0.54336923 0.5373419 0.5313802 0.52548337 0.5196508 0.51388186 0.50817585 0.5025321 0.49695003 0.49142894 0.4859682 0.48056722 0.47522536 0.469942 0.46471655 0.45954835 0.45443687 0.44938147 0.44438156 0.43943655 0.4345459 0.429709 0.4249253 0.4201942 0.4155152 0.41088772 0.4063112 0.40178514 0.39730892 0.39288208 0.38850406 0.38417438 0.37989244 0.37565783 0.37146994 0.36732838 0.36323255 0.359182 0.35517627 0.35121483 0.34729722 0.34342295 0.3395916 0.33580267 0.3320557 0.32835025 0.32468584 0.32106206 0.31747848 0.3139346 0.31043005 0.30696437 0.30353716 0.30014798 0.2967964 0.29348207 0.29020452 0.28696337 0.28375825 0.28058875 0.27745444 0.274355 0.27128997 0.26825905 0.26526186 0.26229796 0.25936705 0.25646874 0.2536027 0.25076854 0.24796593 0.24519452 0.24245398 0.23974393 0.23706406 0.23441406 0.23179357 0.22920226 0.22663982 0.22410595 0.22160031 0.2191226 0.21667251 0.21424972 0.21185395 0.20948489 0.20714225 0.20482573 0.20253505 0.20026992 0.19803007 0.19581519 0.19362503 0.19145931 0.18931775 0.1872001 0.18510607 0.18303542 0.18098788 0.1789632 0.17696112 0.1749814 0.17302378 0.17108801 0.16917387 0.1672811 0.16540948 0.16355875 0.1617287 0.15991908 0.15812968 0.15636028 0.15461063 0.15288055 0.15116979 0.14947814 0.14780541 0.14615135 0.1445158 0.1428985 0.14129929 0.13971797 0.1381543 0.13660812 0.13507922 0.13356742 0.13207251 0.13059431 0.12913264 0.12768732 0.12625816 0.124844976 0.12344759 0.122065835 0.12069953 0.1193485 0.118012585 0.116691604 0.1153854 0.1140938 0.112816654 0.11155379 0.11030505 0.10907028 0.107849315 0.10664201 0.105448216 0.10426777 0.10310053 0.101946354 0.10080508 0.09967658 0.098560706 0.09745731 0.09636627 0.095287435 0.09422066 0.09316583 0.0921228 0.09109145 0.090071626 0.08906322 0.0880661 0.087080136 0.086105205 0.08514118 0.08418795 0.08324538 0.082313366 0.081391774 0.0804805 0.07957943 0.078688435 0.07780742 0.07693626 0.07607485 0.07522309 0.07438085 0.07354805 0.07272456 0.07191029 0.07110514 0.07030899 0.06952176 0.06874334 0.067973636 0.067212544 0.066459976 0.06571583 0.064980015 0.06425243 0.06353299 0.06282161 0.062118195 0.06142265 0.06073489 0.06005483 0.059382383 0.058717467 0.05805999 0.057409875 0.05676704 0.0561314 0.055502873 0.054881386 0.054266855 0.053659208 0.05305836 0.05246424 0.05187677 0.051295877 0.05072149 0.05015353

</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="3.375" PeakHeight="308.854" Num="5" zHalfNm="271.883" Error="1.183">
-93.694 0.227 -0.016 -0.222 0.286
</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="6515.145" A="-1.2306672E11" B="3.7983556E7" C="-2930.7046" Error="0.00171"/>
<QuasiParabolic ID="2" StartDistance="6515.145" EndDistance="6550.29" A="0.0" B="-469.10114" C="0.11203326" Error="0.0104"/>
<QuasiParabolic ID="3" StartDistance="6550.29" EndDistance="6584.0" A="3.9975907E10" B="-1.2276651E7" C="942.5528" Error="0.0104"/>
<QuasiParabolic ID="4" StartDistance="6584.0" EndDistance="6588.0" A="3.54138404E12" B="-1.07588787E9" C="81714.98" Error="0.00949"/>
<QuasiParabolic ID="5" StartDistance="6588.0" EndDistance="6591.0" A="-8.9047335E10" B="2.6246732E7" C="-1932.159" Error="0.00802"/>
<QuasiParabolic ID="6" StartDistance="6591.0" EndDistance="6604.0" A="1.98590294E12" B="-6.0338464E8" C="45832.32" Error="0.00706"/>
<QuasiParabolic ID="7" StartDistance="6604.0" EndDistance="6645.0" A="4.4618948E12" B="-1.35323072E9" C="102604.44" Error="0.0114"/>
<QuasiParabolic ID="8" StartDistance="6645.0" EndDistance="6664.0" A="-3.35303803E12" B="9.988935E8" C="-74380.08" Error="0.00409"/>
<QuasiParabolic ID="9" StartDistance="6664.0" EndDistance="6678.854" A="-1.11171747E13" B="3.3290665E9" C="-249212.98" Error="0.00177"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="105.435" Depth="0.154"/>
<TopsideChapman PeakHeight="308.854" PeakDensity="141322.89" PeakScaleHeight="27.749" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
