<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-28 -148 01:40:00.000"
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" >
2026.05.28 (148) 01:40:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.22" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-16.00" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="75.82641" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202614805280140001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.600" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.382" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.174" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.200" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.200" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.975" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="280.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="280.000" 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="0.150" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.225" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="282.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.200" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.200" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="298.956" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="265.365" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.327" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="47.984" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.760" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="26.173" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="42.410" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.390" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="17">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
280.000 282.500 287.500 292.500 297.500 303.187 309.583 316.829 325.106 334.652 345.782 358.926 374.687 393.930 417.955 448.795 489.830
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
87 93 93 90 93 93 87 87 87 84 0 0 0 0 75 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 -1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="611">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 147.18433 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 184.36867 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 221.553 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 298.956 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0 600.0 601.0 602.0 603.0 604.0 605.0 606.0 607.0 608.0 609.0 610.0 611.0 612.0 613.0 614.0 615.0 616.0 617.0 618.0 619.0 620.0 621.0 622.0 623.0 624.0 625.0 626.0 627.0 628.0 629.0 630.0 631.0 632.0 633.0 634.0 635.0 636.0 637.0 638.0 639.0 640.0 641.0 642.0 643.0 644.0 645.0 646.0 647.0 648.0 649.0 650.0 651.0 652.0 653.0 654.0 655.0 656.0 657.0 658.0 659.0 660.0 661.0 662.0 663.0 664.0 665.0 666.0 667.0 668.0 669.0 670.0 671.0 672.0 673.0 674.0 675.0 676.0 677.0 678.0 679.0 680.0 681.0 682.0 683.0 684.0 685.0 686.0 687.0 688.0 689.0 690.0 691.0 692.0 693.0 694.0 695.0 696.0 697.0 698.0 699.0
</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 0.35265058 0.35186794 0.35086685 0.3497987 0.34844553 0.34695965 0.3453451 0.3434644 0.34146795 0.33922297 0.3368097 0.33417103 0.33138672 0.32833943 0.32511213 0.32159945 0.31794792 0.31400287 0.30980015 0.30537704 0.30066904 0.2957044 0.29042384 0.2848165 0.27889425 0.27261508 0.26591378 0.2588654 0.2513635 0.24331287 0.23481102 0.22566633 0.21596627 0.20551959 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 0.20261468 0.20675622 0.21089774 0.21503927 0.21918081 0.22332233 0.22746386 0.2316054 0.23574692 0.23988844 0.24402998 0.24817151 0.25231305 0.25645456 0.2605961 0.26473764 0.26887915 0.27302068 0.27716222 0.28130373 0.28544527 0.28958678 0.29372832 0.29786986 0.30201137 0.3061529 0.31029445 0.31443596 0.3185775 0.32271904 0.32686055 0.3310021 0.33514363 0.33928514 0.34342667 0.3475682 0.35170972 0.354 0.3610178 0.37822932 0.39774904 0.41981044 0.44453436 0.4718647 0.5015836 0.53330123 0.56659526 0.60108995 0.63647366 0.6725478 0.70921016 0.7464059 0.7841354 0.8224456 0.8613894 0.90103567 0.9414773 0.98280376 1.0251251 1.0685499 1.1131928 1.1591924 1.206669 1.2557691 1.3066522 1.3594664 1.4143807 1.471559 1.5311877 1.5934073 1.6583638 1.7261652 1.79686 1.8704318 1.9467417 2.0255373 2.1063795 2.188677 2.2717164 2.3546734 2.4366677 2.5169113 2.5946856 2.6694522 2.7408023 2.80853 2.8725135 2.9327562 2.9893441 3.0424001 3.0920544 3.1384807 3.1818538 3.222331 3.2600715 3.2952282 3.327935 3.358323 3.386508 3.4125953 3.4366899 3.458868 3.47921 3.4977922 3.514673 3.529909 3.5435514 3.5556412 3.5662165 3.5753098 3.58295 3.5891607 3.593958 3.5973577 3.5993693 3.6 3.599999 3.5994453 3.5978909 3.5953608 3.5918798 3.5874736 3.5821671 3.5759857 3.568955 3.5610998 3.5524457 3.5430179 3.532841 3.5219402 3.51034 3.4980645 3.4851382 3.4715848 3.4574277 3.4426904 3.4273956 3.411566 3.3952239 3.3783908 3.3610885 3.3433378 3.3251595 3.3065739 3.2876005 3.268259 3.2485685 3.2285473 3.2082133 3.1875849 3.1666787 3.1455119 3.1241007 3.102461 3.0806088 3.058559 3.036326 3.0139244 2.9913678 2.96867 2.945844 2.922902 2.899857 2.8767204 2.8535037 2.8302183 2.8068748 2.7834835 2.7600546 2.7365975 2.7131221 2.689637 2.6661508 2.6426723 2.619209 2.5957692 2.5723598 2.5489886 2.5256617 2.5023863 2.4791687 2.4560146 2.43293 2.4099205 2.386991 2.3641472 2.3413937 2.318735 2.2961755 2.2737193 2.2513707 2.2291334 2.2070107 2.1850061 2.1631231 2.1413646 2.1197333 2.098232 2.0768635 2.0556297 2.0345335 2.0135763 1.9927607 1.972088 1.9515603 1.9311789 1.9109454 1.8908612 1.8709272 1.8511449 1.8315152 1.8120389 1.7927169 1.7735498 1.7545384 1.7356832 1.7169846 1.698443 1.6800588 1.6618322 1.6437633 1.6258521 1.6080989 1.5905035 1.5730656 1.5557854 1.5386627 1.5216969 1.504888 1.4882356 1.4717392 1.4553984 1.4392127 1.4231817 1.4073046 1.391581 1.3760103 1.3605917 1.3453245 1.3302082 1.3152417 1.3004246 1.2857558 1.2712345 1.2568601 1.2426316 1.228548 1.2146086 1.2008123 1.1871582 1.1736456 1.1602732 1.1470401 1.1339455 1.1209882 1.1081673 1.0954818 1.0829304 1.0705124 1.0582267 1.0460722 1.0340478 1.0221525 1.0103853 0.998745 0.9872306 0.97584105 0.96457523 0.9534321 0.9424106 0.9315096 0.9207281 0.91006494 0.8995191 0.8890895 0.8787751 0.86857486 0.8584876 0.8485123 0.83864796 0.8288935 0.8192478 0.80970985 0.8002786 0.7909531 0.7817322 0.7726149 0.76360023 0.7546871 0.74587446 0.7371614 0.72854686 0.72002983 0.71160936 0.70328444 0.69505405 0.6869173 0.6788732 0.67092067 0.66305894 0.6552869 0.64760375 0.64000845 0.6325001 0.6250778 0.61774063 0.61048764 0.60331804 0.5962308 0.5892251 0.5823001 0.5754549 0.56868863 0.5620004 0.5553894 0.5488548 0.5423958 0.53601146 0.52970105 0.5234637 0.5172987 0.51120514 0.50518227 0.49922937 0.4933456 0.4875302 0.4817824 0.4761015 0.4704867 0.46493727 0.45945248 0.45403165 0.448674 0.44337884 0.43814546 0.4329732 0.42786133 0.4228092 0.4178161 0.4128814 0.4080044 0.40318447 0.39842096 0.3937132 0.3890606 0.38446248 0.37991828 0.3754273 0.37098902 0.3666028 0.36226803 0.35798416 0.35375056 0.34956667 0.34543192 0.34134576 0.3373076 0.3333169 0.32937312 0.32547572 0.32162416 0.31781793 0.31405646 0.31033927 0.30666584 0.30303565 0.29944822 0.29590306 0.29239964 0.2889375 0.28551617 0.28213516 0.278794 0.27549225 0.2722294 0.26900506 0.26581874 0.26267004 0.25955847 0.2564836 0.25344506 0.2504424 0.24747515 0.24454294 0.24164535 0.238782 0.23595245 0.23315634 0.23039326 0.22766282 0.22496465 0.22229837 0.21966359 0.21705997 0.21448712 0.21194468 0.20943232 0.20694965 0.20449634 0.20207205 0.19967644 0.19730915 0.19496988 0.19265828 0.19037403 0.1881168 0.1858863 0.18368217 0.18150415 0.17935188 0.17722511 0.1751235 0.17304678 0.17099464 0.1689668 0.16696297 0.16498286 0.1630262 0.16109271 0.15918212 0.15729415 0.15542856 0.15358505 0.15176338 0.14996329 0.14818452 0.14642683 0.14468996 0.14297366 0.14127772 0.13960186 0.13794585 0.13630946 0.13469248 0.13309465 0.13151576 0.12995557 0.12841389 0.12689047 0.1253851 0.1238976 0.12242771 0.12097525 0.119540006 0.11812177 0.116720356 0.115335554 0.11396717 0.11261501 0.11127888 0.10995859 0.108653955 0.10736479 0.10609091 0.104832135 0.10358828 0.10235918 0.10114466 0.09994454 0.098758645 0.09758682 0.09642889 0.09528469 0.09415407 0.093036845 0.09193288 0.090842 0.089764066 0.088698916 0.087646395 0.08660636 0.085578665 0.08456316 0.0835597 0.08256814 0.08158834 0.08062016 0.07966348 0.07871813 0.07778401 0.07686096 0.075948864 0.07504759 0.07415701 0.07327698 0.07240741 0.07154814 0.07069907 0.06986008 0.06903104 0.06821183 0.06740235 0.06660246 0.065812066 0.06503105 0.064259306 0.06349672 0.06274317 0.061998565 0.061262798 0.060535755 0.059817344 0.059107456 0.05840599 0.05771285 0.05702793 0.05635114 0.05568238 0.055021554 0.05436857 0.05372333 0.05308575 0.05245574 0.0518332 0.051218048 0.0506102 0.05000956

</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="3.6" PeakHeight="298.956" Num="5" zHalfNm="265.365" Error="4.917">
-83.77 11.767 -8.236 4.534 -1.698
</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="6517.184" A="-1.10001119E11" B="3.3950964E7" C="-2619.5479" Error="0.00179"/>
<QuasiParabolic ID="2" StartDistance="6517.184" EndDistance="6554.369" A="0.0" B="72.75059" C="0.028874662" Error="9.39E-4"/>
<QuasiParabolic ID="3" StartDistance="6554.369" EndDistance="6588.0" A="3.22909757E10" B="-9924641.0" C="762.58594" Error="7.98E-4"/>
<QuasiParabolic ID="4" StartDistance="6588.0" EndDistance="6590.0" A="-3.2422101E11" B="9.830608E7" C="-7451.646" Error="0.00135"/>
<QuasiParabolic ID="5" StartDistance="6590.0" EndDistance="6607.0" A="3.41439729E12" B="-1.03632774E9" C="78635.9" Error="0.0092"/>
<QuasiParabolic ID="6" StartDistance="6607.0" EndDistance="6612.0" A="4.38538129E12" B="-1.33025357E9" C="100879.414" Error="2.34E-4"/>
<QuasiParabolic ID="7" StartDistance="6612.0" EndDistance="6621.0" A="8.1383103E12" B="-2.46544077E9" C="186722.38" Error="0.00648"/>
<QuasiParabolic ID="8" StartDistance="6621.0" EndDistance="6633.0" A="2.00901604E13" B="-6.0757258E9" C="459361.34" Error="0.00922"/>
<QuasiParabolic ID="9" StartDistance="6633.0" EndDistance="6668.956" A="-1.11258842E13" B="3.33661952E9" C="-250147.61" Error="0.0147"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="111.553" Depth="0.154"/>
<TopsideChapman PeakHeight="298.956" PeakDensity="160794.05" PeakScaleHeight="26.173" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
