<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-26 -146 03:30:00.000"
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="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" >
2026.05.26 (146) 03:30:00</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">
FF202614605260330001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.850" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.065" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="8.734" 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="3.300" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="342.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="342.500" 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="0.150" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.725" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="375.000" 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="319.040" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="280.347" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.735" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="55.235" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.257" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="28.960" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="56.200" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.980" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="16">
<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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
342.500 342.500 347.500 352.500 352.500 355.000 360.000 365.000 367.500 370.000 375.000 381.870 390.225 400.607 413.853 431.341
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 69 72 69 72 66 69 66 69 72 72 72 54 54 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="652">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 147.62567 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 185.25133 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 222.877 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 319.04 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0 600.0 601.0 602.0 603.0 604.0 605.0 606.0 607.0 608.0 609.0 610.0 611.0 612.0 613.0 614.0 615.0 616.0 617.0 618.0 619.0 620.0 621.0 622.0 623.0 624.0 625.0 626.0 627.0 628.0 629.0 630.0 631.0 632.0 633.0 634.0 635.0 636.0 637.0 638.0 639.0 640.0 641.0 642.0 643.0 644.0 645.0 646.0 647.0 648.0 649.0 650.0 651.0 652.0 653.0 654.0 655.0 656.0 657.0 658.0 659.0 660.0 661.0 662.0 663.0 664.0 665.0 666.0 667.0 668.0 669.0 670.0 671.0 672.0 673.0 674.0 675.0 676.0 677.0 678.0 679.0 680.0 681.0 682.0 683.0 684.0 685.0 686.0 687.0 688.0 689.0 690.0 691.0 692.0 693.0 694.0 695.0 696.0 697.0 698.0 699.0 700.0 701.0 702.0 703.0 704.0 705.0 706.0 707.0 708.0 709.0 710.0 711.0 712.0 713.0 714.0 715.0 716.0 717.0 718.0 719.0 720.0 721.0 722.0 723.0 724.0 725.0 726.0 727.0 728.0 729.0 730.0 731.0 732.0 733.0 734.0 735.0 736.0 737.0 738.0 739.0 740.0
</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 0.35369936 0.35321155 0.35265046 0.35186782 0.3509409 0.34987223 0.3485916 0.34717676 0.34555984 0.34374744 0.34174705 0.33956686 0.33721575 0.33463627 0.33190805 0.32897747 0.3257971 0.32238805 0.31883237 0.31497377 0.31090367 0.30659857 0.30204418 0.29721105 0.29203722 0.28659946 0.280891 0.2747689 0.2683069 0.26146957 0.25423607 0.24647672 0.2382616 0.22948086 0.22012414 0.21017998 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 0.2 0.2 0.20306426 0.20715721 0.21125016 0.2153431 0.21943606 0.22352901 0.22762196 0.2317149 0.23580787 0.23990081 0.24399376 0.24808672 0.25217965 0.2562726 0.26036558 0.2644585 0.26855147 0.27264443 0.27673736 0.28083032 0.2849233 0.28901622 0.29310918 0.2972021 0.30129507 0.30538803 0.30948097 0.31357393 0.3176669 0.32175982 0.32585278 0.32994574 0.33403867 0.33813164 0.34222457 0.34631753 0.3504105 0.354 0.35599715 0.37235624 0.38898844 0.40594083 0.42325664 0.44097507 0.45912474 0.4777419 0.49684528 0.51646805 0.5366216 0.55732906 0.5786099 0.60047513 0.6229366 0.6460063 0.66969043 0.6939892 0.7189095 0.7444523 0.7706086 0.7973799 0.8247462 0.85271335 0.8812543 0.91036 0.94001573 0.97019434 1.000893 1.0320706 1.0637213 1.095809 1.1283172 1.161215 1.1944889 1.2280988 1.2620286 1.2962482 1.330732 1.365459 1.4004 1.4355253 1.4708246 1.506253 1.5418018 1.5774431 1.6131425 1.6488879 1.684654 1.7204043 1.7561264 1.7917955 1.8273833 1.8628665 1.8982182 1.9334147 1.9684286 2.0032349 2.037804 2.0721145 2.1061327 2.1398323 2.1731865 2.2061617 2.238724 2.2708473 2.3024976 2.3336422 2.3642442 2.3942704 2.4236784 2.452444 2.4805186 2.5078733 2.534461 2.5602489 2.585189 2.6092515 2.632391 2.654565 2.6757379 2.695872 2.7149217 2.7328537 2.7496328 2.7652204 2.7795823 2.7926867 2.804505 2.8150084 2.8241727 2.8319743 2.838396 2.8434198 2.8470335 2.8492286 2.849994 2.85 2.8496964 2.8487432 2.8471549 2.8449457 2.8421304 2.838724 2.8347409 2.8301964 2.825105 2.8194814 2.8133404 2.806697 2.7995656 2.7919605 2.7838964 2.7753875 2.766448 2.757092 2.7473335 2.737186 2.7266634 2.7157786 2.704545 2.692976 2.6810842 2.6688821 2.656382 2.6435966 2.6305377 2.617217 2.603646 2.5898361 2.5757987 2.5615442 2.5470839 2.5324275 2.5175858 2.5025685 2.4873853 2.4720461 2.45656 2.4409359 2.4251826 2.4093091 2.393324 2.3772347 2.3610497 2.3447769 2.3284235 2.311997 2.2955043 2.2789526 2.2623487 2.245699 2.2290099 2.2122872 2.1955373 2.1787658 2.1619782 2.1451802 2.1283765 2.1115727 2.0947735 2.0779834 2.0612073 2.0444493 2.027714 2.0110052 1.9943268 1.9776828 1.9610769 1.9445125 1.9279928 1.9115214 1.8951013 1.8787354 1.8624268 1.8461779 1.8299916 1.8138703 1.7978165 1.7818325 1.7659205 1.7500825 1.7343206 1.7186366 1.7030326 1.6875099 1.6720705 1.6567156 1.6414471 1.6262659 1.6111736 1.5961715 1.5812604 1.5664418 1.5517164 1.5370853 1.5225493 1.5081093 1.4937661 1.4795202 1.4653723 1.4513233 1.4373733 1.423523 1.4097728 1.396123 1.3825742 1.3691264 1.3557801 1.3425354 1.3293923 1.3163512 1.303412 1.2905749 1.2778398 1.2652068 1.2526759 1.2402468 1.2279196 1.2156942 1.2035702 1.1915478 1.1796263 1.1678059 1.1560861 1.1444668 1.1329476 1.1215281 1.1102082 1.0989872 1.087865 1.0768412 1.0659152 1.0550869 1.0443555 1.0337209 1.0231823 1.0127394 1.0023917 0.9921387 0.9819799 0.9719148 0.96194285 0.95206344 0.9422761 0.93258035 0.9229755 0.91346097 0.90403634 0.8947009 0.88545406 0.87629527 0.867224 0.85823953 0.8493413 0.8405287 0.8318012 0.8231581 0.81459874 0.8061226 0.797729 0.7894174 0.78118706 0.7730374 0.7649678 0.7569777 0.74906635 0.74123317 0.7334776 0.7257989 0.7181965 0.7106698 0.7032181 0.6958409 0.6885374 0.68130714 0.67414945 0.66706365 0.66004914 0.6531054 0.6462317 0.6394275 0.6326921 0.626025 0.61942554 0.6128931 0.60642713 0.600027 0.5936922 0.58742195 0.5812158 0.5750732 0.56899345 0.562976 0.55702037 0.5511259 0.54529196 0.5395181 0.53380376 0.5281483 0.5225512 0.5170119 0.51152986 0.5061045 0.5007354 0.4954219 0.49016348 0.48495963 0.47980985 0.47471356 0.4696703 0.4646795 0.4597407 0.45485336 0.45001698 0.44523105 0.4404951 0.43580863 0.43117115 0.4265822 0.42204124 0.41754782 0.4131015 0.40870178 0.4043482 0.40004027 0.3957776 0.3915597 0.3873861 0.38325638 0.37917012 0.3751268 0.3711261 0.3671675 0.3632506 0.359375 0.35554028 0.35174596 0.3479917 0.34427705 0.34060165 0.33696505 0.3333669 0.32980677 0.3262843 0.32279906 0.31935072 0.31593886 0.31256312 0.30922315 0.30591854 0.30264893 0.299414 0.29621336 0.29304668 0.28991356 0.2868137 0.28374672 0.2807123 0.27771014 0.2747398 0.27180105 0.26889354 0.2660169 0.26317084 0.26035506 0.2575692 0.25481296 0.25208607 0.24938817 0.246719 0.24407823 0.24146557 0.23888074 0.23632343 0.23379336 0.23129025 0.22881381 0.22636375 0.2239398 0.2215417 0.21916917 0.21682194 0.21449973 0.2122023 0.20992936 0.20768067 0.20545599 0.20325504 0.20107758 0.19892336 0.19679214 0.19468369 0.19259773 0.19053406 0.18849242 0.18647258 0.18447433 0.18249743 0.18054163 0.17860675 0.17669255 0.17479879 0.17292528 0.1710718 0.16923812 0.16742405 0.16562939 0.1638539 0.16209741 0.1603597 0.15864058 0.15693985 0.1552573 0.15359275 0.15194602 0.15031691 0.14870521 0.14711078 0.1455334 0.1439729 0.14242911 0.14090185 0.13939092 0.13789617 0.13641742 0.13495451 0.13350725 0.13207549 0.13065906 0.1292578 0.12787154 0.12650014 0.12514341 0.123801224 0.122473404 0.12115981 0.119860284 0.11857468 0.11730285 0.11604464 0.11479991 0.113568515 0.112350315 0.11114517 0.109952934 0.10877348 0.10760666 0.10645234 0.10531039 0.10418068 0.10306308 0.101957455 0.10086368 0.099781625 0.09871117 0.09765219 0.09660456 0.095568165 0.094542876 0.093528576 0.09252515 0.091532476 0.09055045 0.08957896 0.08861787 0.08766709 0.0867265 0.085796006 0.08487548 0.083964825 0.08306394 0.08217271 0.081291035 0.08041882 0.07955595 0.078702345 0.07785788 0.077022485 0.07619604 0.075378455 0.07456965 0.07376951 0.07297795 0.07219488 0.071420215 0.070653856 0.069895715 0.06914571 0.06840374 0.067669734 0.0669436 0.06622526 0.06551462 0.0648116 0.06411613 0.06342811 0.06274748 0.062074143 0.06140803 0.06074907 0.060097173 0.05945227 0.058814283 0.05818314 0.05755877 0.0569411 0.056330055 0.055725567 0.05512756 0.05453597 0.053950727 0.053371765 0.052799013 0.052232403 0.051671878 0.05111736 0.050568797 0.05002612

</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="2.85" PeakHeight="319.04" Num="5" zHalfNm="280.347" Error="0.636">
-95.166 -1.772 1.17 -0.67 0.275
</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="6517.626" A="-1.07443978E11" B="3.316172E7" C="-2558.6494" Error="0.00177"/>
<QuasiParabolic ID="2" StartDistance="6517.626" EndDistance="6555.251" A="0.0" B="262.70663" C="-2.6758033E-4" Error="0.0048"/>
<QuasiParabolic ID="3" StartDistance="6555.251" EndDistance="6557.0" A="-8.984593E11" B="2.73985632E8" C="-20887.97" Error="0.0151"/>
<QuasiParabolic ID="4" StartDistance="6557.0" EndDistance="6579.0" A="5.2439073E10" B="-1.6055041E7" C="1228.9019" Error="0.0194"/>
<QuasiParabolic ID="5" StartDistance="6579.0" EndDistance="6591.0" A="-5.2967875E9" B="1496520.6" C="-105.00621" Error="0.0045"/>
<QuasiParabolic ID="6" StartDistance="6591.0" EndDistance="6596.0" A="2.36673119E12" B="-7.1828134E8" C="54498.08" Error="0.0199"/>
<QuasiParabolic ID="7" StartDistance="6596.0" EndDistance="6606.0" A="8.6647754E11" B="-2.63383344E8" C="20015.21" Error="0.0121"/>
<QuasiParabolic ID="8" StartDistance="6606.0" EndDistance="6656.0" A="2.55147639E12" B="-7.7352525E8" C="58627.227" Error="0.0194"/>
<QuasiParabolic ID="9" StartDistance="6656.0" EndDistance="6675.0" A="-2.34127963E12" B="6.9665376E8" C="-51812.91" Error="0.00359"/>
<QuasiParabolic ID="10" StartDistance="6675.0" EndDistance="6689.04" A="-7.7169531E12" B="2.30734259E9" C="-172463.75" Error="0.00154"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="112.877" Depth="0.154"/>
<TopsideChapman PeakHeight="319.04" PeakDensity="100775.44" PeakScaleHeight="28.96" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
