<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-19 -139 23:15:00.000"
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" >
2026.05.19 (139) 23:15:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.22" 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">
FF202613905192315001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.400" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.286" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.174" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.975" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.975" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.700" 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="2.975" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="285.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.975" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.975" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="302.759" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="265.021" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="4.260" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="53.948" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.754" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="29.071" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="49.970" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.870" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="18">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
285.000 292.500 297.500 301.966 306.873 312.289 318.300 325.007 332.541 341.062 350.780 361.966 374.978 390.304 408.622 430.903 458.588 493.914
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 66 90 93 90 90 96 93 81 78 99 99 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 4.6875 -1.5625 -1.5625 -1.5625 -1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="653">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 144.621 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 179.242 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 213.863 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 302.759 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0 600.0 601.0 602.0 603.0 604.0 605.0 606.0 607.0 608.0 609.0 610.0 611.0 612.0 613.0 614.0 615.0 616.0 617.0 618.0 619.0 620.0 621.0 622.0 623.0 624.0 625.0 626.0 627.0 628.0 629.0 630.0 631.0 632.0 633.0 634.0 635.0 636.0 637.0 638.0 639.0 640.0 641.0 642.0 643.0 644.0 645.0 646.0 647.0 648.0 649.0 650.0 651.0 652.0 653.0 654.0 655.0 656.0 657.0 658.0 659.0 660.0 661.0 662.0 663.0 664.0 665.0 666.0 667.0 668.0 669.0 670.0 671.0 672.0 673.0 674.0 675.0 676.0 677.0 678.0 679.0 680.0 681.0 682.0 683.0 684.0 685.0 686.0 687.0 688.0 689.0 690.0 691.0 692.0 693.0 694.0 695.0 696.0 697.0 698.0 699.0 700.0 701.0 702.0 703.0 704.0 705.0 706.0 707.0 708.0 709.0 710.0 711.0 712.0 713.0 714.0 715.0 716.0 717.0 718.0 719.0 720.0 721.0 722.0 723.0 724.0 725.0 726.0 727.0 728.0 729.0 730.0 731.0 732.0 733.0 734.0 735.0 736.0 737.0 738.0 739.0 740.0 741.0
</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 0.35149595 0.35042334 0.349138 0.34764516 0.3458789 0.3439913 0.3418469 0.3394574 0.33690384 0.3340628 0.33101892 0.32772425 0.3242006 0.3204103 0.3163829 0.3120356 0.30741304 0.30245674 0.29722884 0.2915793 0.28572145 0.27931744 0.2726173 0.2654194 0.257785 0.24963076 0.24085814 0.23148152 0.22142833 0.21067232 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 0.2033717 0.20781988 0.21226804 0.21671622 0.22116438 0.22561255 0.23006071 0.23450889 0.23895705 0.24340522 0.24785338 0.25230154 0.25674972 0.2611979 0.26564604 0.27009422 0.2745424 0.27899057 0.2834387 0.2878869 0.29233506 0.29678324 0.30123138 0.30567956 0.31012774 0.31457588 0.31902406 0.32347223 0.3279204 0.33236855 0.33681673 0.3412649 0.34571308 0.35016122 0.354 0.3562542 0.37347907 0.3920525 0.4119348 0.43305632 0.4553188 0.4786218 0.5028437 0.5278981 0.5536944 0.58016574 0.6072675 0.63496643 0.66325027 0.6921113 0.7215563 0.75160074 0.7822679 0.81358355 0.8455704 0.87828225 0.91173923 0.9459957 0.98109114 1.0170734 1.053993 1.0919023 1.1308454 1.1708801 1.2120537 1.254428 1.2980443 1.342955 1.3891975 1.4368088 1.4858167 1.53623 1.5880526 1.6412615 1.6958061 1.7516365 1.8086562 1.8667265 1.9256842 1.9853668 2.0455368 2.1059682 2.1663892 2.2265675 2.2862096 2.3450892 2.4029567 2.45962 2.5148783 2.568591 2.620624 2.670893 2.7193325 2.7658935 2.8105567 2.853306 2.8941646 2.9331427 2.9702642 3.0055683 3.0390797 3.0708563 3.100925 3.1293283 3.1561162 3.1813173 3.2049823 3.2271395 3.2478266 3.2670805 3.2849305 3.301407 3.3165355 3.3303409 3.342847 3.3540761 3.364045 3.372769 3.380265 3.3865423 3.3916137 3.3954864 3.3981664 3.3996587 3.4 3.3999772 3.3994002 3.398059 3.3959699 3.3931506 3.3896184 3.3853908 3.3804853 3.3749194 3.3687103 3.3618755 3.3544326 3.3463988 3.3377912 3.328627 3.3189232 3.3086965 3.2979639 3.2867415 3.2750459 3.2628934 3.2502997 3.2372808 3.223852 3.210029 3.1958263 3.1812592 3.1663423 3.1510897 3.1355157 3.1196342 3.1034586 3.0870028 3.0702791 3.0533006 3.0360801 3.0186296 3.000961 2.9830866 2.965017 2.9467642 2.928339 2.9097517 2.891013 2.8721328 2.8531213 2.833988 2.814742 2.795393 2.7759495 2.7564204 2.7368138 2.7171378 2.6974006 2.6776097 2.6577728 2.6378968 2.6179888 2.5980558 2.5781043 2.5581403 2.5381703 2.5182004 2.498236 2.4782827 2.4583461 2.4384313 2.418543 2.3986866 2.3788664 2.359087 2.3393526 2.3196673 2.3000352 2.2804601 2.2609456 2.2414954 2.222113 2.2028012 2.1835635 2.1644025 2.1453216 2.1263232 2.1074097 2.088584 2.0698483 2.0512047 2.0326555 2.0142028 1.9958483 1.977594 1.9594417 1.9413927 1.9234489 1.9056115 1.8878821 1.8702619 1.852752 1.8353536 1.8180678 1.8008955 1.7838376 1.7668948 1.7500682 1.7333583 1.7167658 1.7002912 1.6839349 1.6676977 1.6515797 1.6355814 1.6197032 1.603945 1.5883074 1.5727904 1.5573941 1.5421187 1.526964 1.5119301 1.497017 1.4822247 1.467553 1.4530017 1.4385706 1.4242597 1.4100685 1.3959969 1.3820447 1.3682113 1.3544965 1.3408998 1.3274211 1.3140597 1.3008155 1.2876875 1.2746758 1.2617795 1.2489984 1.2363317 1.2237791 1.2113398 1.1990134 1.1867992 1.1746967 1.1627053 1.1508243 1.1390532 1.1273912 1.1158377 1.104392 1.0930537 1.0818217 1.0706956 1.0596747 1.0487583 1.0379455 1.0272359 1.0166285 1.0061228 0.995718 0.9854133 0.97520816 0.96510166 0.9550932 0.94518197 0.9353673 0.92564833 0.9160245 0.9064949 0.89705896 0.8877158 0.8784647 0.869305 0.86023587 0.8512566 0.8423665 0.83356476 0.82485074 0.81622356 0.8076826 0.79922706 0.7908563 0.7825695 0.774366 0.76624507 0.75820595 0.7502479 0.7423703 0.73457235 0.7268534 0.7192127 0.71164954 0.7041633 0.6967532 0.6894186 0.68215877 0.674973 0.66786075 0.6608212 0.6538537 0.64695764 0.64013225 0.63337696 0.6266911 0.62007403 0.61352503 0.6070435 0.6006288 0.5942803 0.5879974 0.5817793 0.5756256 0.5695356 0.5635086 0.5575442 0.5516415 0.54580015 0.5400194 0.5342988 0.5286376 0.52303535 0.5174914 0.5120052 0.5065762 0.5012038 0.4958874 0.49062654 0.4854206 0.4802691 0.47517145 0.4701271 0.46513554 0.46019626 0.4553087 0.45047238 0.44568676 0.44095132 0.43626556 0.431629 0.4270411 0.42250142 0.41800946 0.41356468 0.4091667 0.40481496 0.400509 0.3962484 0.39203265 0.3878613 0.38373396 0.3796501 0.37560928 0.3716111 0.3676551 0.36374086 0.35986793 0.3560359 0.35224435 0.34849286 0.344781 0.34110838 0.3374746 0.33387923 0.33032194 0.32680225 0.3233198 0.31987423 0.31646514 0.31309214 0.30975488 0.306453 0.30318606 0.29995376 0.29675573 0.2935916 0.290461 0.28736365 0.2842991 0.2812671 0.2782673 0.27529928 0.2723628 0.2694575 0.26658303 0.26373908 0.26092535 0.2581415 0.25538722 0.2526622 0.24996617 0.24729878 0.24465974 0.24204876 0.23946553 0.23690978 0.23438121 0.23187953 0.22940446 0.22695573 0.22453304 0.22213614 0.21976474 0.21741858 0.21509738 0.2128009 0.21052888 0.20828104 0.20605713 0.20385692 0.20168011 0.1995265 0.19739583 0.19528787 0.19320235 0.19113906 0.18909773 0.18707818 0.18508014 0.1831034 0.18114771 0.17921288 0.17729867 0.17540486 0.17353125 0.1716776 0.16984373 0.16802941 0.16623443 0.16445859 0.1627017 0.16096354 0.15924391 0.15754265 0.15585952 0.15419433 0.15254691 0.15091708 0.14930463 0.14770938 0.14613116 0.14456977 0.14302506 0.1414968 0.13998488 0.13848908 0.13700925 0.13554521 0.1340968 0.13266385 0.1312462 0.12984367 0.12845612 0.12708338 0.1257253 0.124381706 0.12305246 0.12173742 0.12043641 0.11914929 0.11787592 0.11661614 0.11536981 0.11413679 0.11291695 0.11171012 0.11051619 0.109335005 0.108166434 0.10701035 0.1058666 0.10473508 0.10361564 0.10250816 0.101412505 0.10032855 0.09925618 0.09819526 0.09714568 0.096107304 0.095080025 0.09406372 0.09305827 0.09206357 0.09107949 0.09010592 0.089142755 0.08818988 0.087247185 0.08631457 0.08539191 0.08447911 0.08357606 0.08268266 0.081798814 0.08092441 0.08005934 0.079203516 0.07835684 0.077519216 0.07669054 0.075870715 0.07505965 0.07425726 0.07346344 0.072678104 0.07190116 0.07113252 0.07037209 0.06961979 0.06887553 0.068139225 0.06741079 0.06669014 0.065977186 0.065271854 0.06457406 0.06388373 0.06320077 0.062525116 0.061856683 0.061195392 0.06054117 0.05989394 0.059253626 0.05862016 0.05799346 0.05737346 0.056760088 0.05615327 0.055552945 0.05495903 0.054371465 0.053790182 0.05321511 0.052646186 0.052083343 0.051526517 0.050975643 0.050430655

</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="3.4" PeakHeight="302.759" Num="5" zHalfNm="265.021" Error="4.477">
-93.957 9.086 -6.429 3.44 -1.036
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="11" 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="6514.621" A="-1.26797144E11" B="3.913492E7" C="-3019.5444" Error="0.00168"/>
<QuasiParabolic ID="2" StartDistance="6514.621" EndDistance="6549.242" A="0.0" B="536.7649" C="-0.042360455" Error="0.0101"/>
<QuasiParabolic ID="3" StartDistance="6549.242" EndDistance="6551.0" A="-2.04100705E12" B="6.2306938E8" C="-47551.902" Error="0.0321"/>
<QuasiParabolic ID="4" StartDistance="6551.0" EndDistance="6566.0" A="1.18469345E11" B="-3.6212072E7" C="2767.2422" Error="0.0377"/>
<QuasiParabolic ID="5" StartDistance="6566.0" EndDistance="6580.0" A="-1.89087396E10" B="5633217.0" C="-419.27078" Error="0.0119"/>
<QuasiParabolic ID="6" StartDistance="6580.0" EndDistance="6581.0" A="-8.7966188E11" B="2.67260304E8" C="-20299.748" Error="0.0"/>
<QuasiParabolic ID="7" StartDistance="6581.0" EndDistance="6597.0" A="2.1728896E12" B="-6.6042592E8" C="50182.414" Error="0.0331"/>
<QuasiParabolic ID="8" StartDistance="6597.0" EndDistance="6609.0" A="2.74644887E12" B="-8.3431078E8" C="63361.5" Error="0.0084"/>
<QuasiParabolic ID="9" StartDistance="6609.0" EndDistance="6637.0" A="7.7280728E12" B="-2.34183808E9" C="177412.6" Error="0.0159"/>
<QuasiParabolic ID="10" StartDistance="6637.0" EndDistance="6672.759" A="-8.0830776E12" B="2.42270925E9" C="-181525.73" Error="0.00544"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="103.863" Depth="0.154"/>
<TopsideChapman PeakHeight="302.759" PeakDensity="143424.31" PeakScaleHeight="29.071" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
