<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-16 -136 07:20:00.000"
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" >
2026.05.16 (136) 07:20:00</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">
FF202613605160720001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.050" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.335" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="10.171" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.300" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.300" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.425" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="262.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="262.500" 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="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.775" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="297.635" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.300" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.300" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="285.980" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="252.640" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.367" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="47.504" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.257" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="26.110" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="37.950" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="4.430" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="31">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.3 2.325 2.35 2.375 2.4 2.425 2.45 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
262.500 263.750 265.000 267.500 267.500 270.000 270.000 272.500 272.500 275.000 277.500 277.500 280.000 281.773 283.730 285.901 288.324 291.046 294.124 297.635 301.675 306.376 311.912 318.529 326.577 336.577 349.336 366.180 389.444 423.663 478.958
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
51 0 51 60 66 66 69 69 69 69 66 69 69 66 63 0 60 63 63 51 0 36 42 63 0 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 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 7.8125 -1.5625 -1.5625 7.8125 -1.5625 -1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="583">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 145.00833 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 180.01666 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 215.025 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 285.98 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0 600.0 601.0 602.0 603.0 604.0 605.0 606.0 607.0 608.0 609.0 610.0 611.0 612.0 613.0 614.0 615.0 616.0 617.0 618.0 619.0 620.0 621.0 622.0 623.0 624.0 625.0 626.0 627.0 628.0 629.0 630.0 631.0 632.0 633.0 634.0 635.0 636.0 637.0 638.0 639.0 640.0 641.0 642.0 643.0 644.0 645.0 646.0 647.0 648.0 649.0 650.0 651.0 652.0 653.0 654.0 655.0 656.0 657.0 658.0 659.0 660.0 661.0 662.0 663.0 664.0 665.0 666.0 667.0 668.0 669.0 670.0 671.0
</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 0.34921128 0.34779054 0.3460947 0.34420434 0.34212717 0.33980232 0.33731073 0.33452833 0.33153954 0.32836023 0.3248817 0.3211926 0.31725737 0.31299192 0.3084954 0.30370104 0.29856157 0.29312336 0.28734863 0.28124958 0.2747036 0.2677366 0.26029482 0.25237525 0.24396145 0.234903 0.22518878 0.21480824 0.20367314 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 0.20432563 0.20872459 0.21312355 0.2175225 0.22192144 0.2263204 0.23071936 0.2351183 0.23951726 0.24391621 0.24831517 0.25271413 0.25711307 0.261512 0.26591098 0.27030993 0.27470887 0.27910784 0.28350678 0.28790572 0.2923047 0.29670364 0.3011026 0.30550155 0.3099005 0.31429946 0.3186984 0.32309735 0.32749632 0.33189526 0.3362942 0.34069318 0.34509212 0.34949106 0.35389003 0.354 0.37558186 0.39930683 0.4243684 0.45050013 0.47746754 0.50512177 0.53336215 0.562158 0.5915022 0.6214288 0.6519823 0.68322176 0.7152415 0.7481239 0.7819745 0.81691056 0.8530548 0.89055 0.92955524 0.9702503 1.01283 1.057522 1.1045629 1.1542407 1.2068661 1.2627555 1.3222612 1.3857306 1.4534584 1.5256044 1.6021777 1.6828136 1.7667398 1.8527004 1.9390596 2.0240889 2.1061792 2.184207 2.2574353 2.3256068 2.3887436 2.4470534 2.5008473 2.5504618 2.5962567 2.638539 2.677616 2.71376 2.7472012 2.7781575 2.8068118 2.8333213 2.8578439 2.880497 2.90139 2.9206285 2.9382923 2.9544632 2.9692042 2.9825733 2.994625 3.0054033 3.0149493 3.0232937 3.0304675 3.0364938 3.0413947 3.0451846 3.0478768 3.0494804 3.05 3.0499997 3.049549 3.0482461 3.046112 3.0431683 3.0394363 3.0349376 3.029694 3.0237272 3.0170584 3.0097096 3.0017018 2.9930568 2.9837952 2.9739385 2.9635072 2.952522 2.9410033 2.928971 2.916445 2.903445 2.8899903 2.8760996 2.8617914 2.8470843 2.8319962 2.8165448 2.800747 2.78462 2.7681804 2.751444 2.7344272 2.717145 2.6996126 2.6818447 2.6638558 2.6456597 2.62727 2.6087 2.5899625 2.5710702 2.552035 2.532869 2.5135837 2.49419 2.4746985 2.45512 2.4354646 2.4157417 2.3959613 2.376132 2.3562632 2.336363 2.3164399 2.2965016 2.276556 2.2566104 2.236672 2.2167475 2.1968434 2.1769662 2.1571221 2.1373167 2.1175556 2.0978441 2.0781877 2.058591 2.0390587 2.0195956 2.0002055 1.9808931 1.9616618 1.9425156 1.9234581 1.9044924 1.8856219 1.8668495 1.8481783 1.8296108 1.8111497 1.7927973 1.7745562 1.7564281 1.7384154 1.7205198 1.7027432 1.6850871 1.6675532 1.6501428 1.6328573 1.615698 1.5986658 1.5817618 1.5649872 1.5483425 1.5318286 1.5154462 1.4991958 1.4830781 1.4670935 1.4512422 1.4355246 1.4199411 1.4044917 1.3891766 1.3739959 1.3589495 1.3440375 1.3292598 1.3146161 1.3001063 1.2857302 1.2714876 1.257378 1.2434013 1.2295568 1.2158444 1.2022635 1.1888134 1.1754941 1.1623045 1.1492444 1.1363131 1.1235099 1.1108341 1.0982853 1.0858626 1.0735655 1.0613929 1.0493444 1.0374191 1.0256163 1.0139351 1.0023748 0.99093443 0.9796134 0.96841073 0.9573256 0.94635713 0.9355045 0.92476684 0.91414326 0.9036328 0.8932347 0.882948 0.8727718 0.8627052 0.85274726 0.8428972 0.8331539 0.8235166 0.8139844 0.8045563 0.7952314 0.78600883 0.7768876 0.76786685 0.75894564 0.75012314 0.7413983 0.73277026 0.72423816 0.71580106 0.707458 0.6992082 0.6910507 0.6829846 0.67500895 0.667123 0.6593258 0.6516164 0.64399403 0.6364578 0.6290068 0.6216402 0.6143572 0.6071568 0.6000383 0.59300077 0.5860434 0.57916546 0.57236594 0.5656442 0.5589993 0.55243045 0.54593694 0.5395179 0.53317255 0.5269001 0.5206998 0.51457083 0.5085125 0.502524 0.4966046 0.49075353 0.48497006 0.47925347 0.473603 0.46801797 0.46249762 0.4570413 0.45164824 0.4463178 0.44104925 0.43584192 0.43069515 0.42560828 0.4205806 0.41561145 0.41070023 0.40584624 0.4010489 0.3963075 0.39162147 0.3869902 0.382413 0.37788934 0.37341857 0.3690001 0.36463338 0.36031777 0.3560527 0.3518376 0.34767196 0.34355512 0.33948657 0.3354658 0.3314922 0.32756525 0.32368442 0.31984922 0.31605908 0.3123135 0.30861196 0.30495393 0.30133897 0.29776657 0.2942362 0.2907474 0.28729972 0.28389263 0.28052568 0.27719843 0.27391043 0.27066118 0.2674502 0.26427716 0.26114154 0.25804293 0.2549809 0.251955 0.24896485 0.24600999 0.24309005 0.24020459 0.23735324 0.23453557 0.23175122 0.22899978 0.22628088 0.22359411 0.22093914 0.21831557 0.21572302 0.21316116 0.21062961 0.20812802 0.20565605 0.20321333 0.20079954 0.19841431 0.19605735 0.1937283 0.19142683 0.18915261 0.18690535 0.18468471 0.18249038 0.18032207 0.17817944 0.17606221 0.17397007 0.17190275 0.16985993 0.16784133 0.16584666 0.16387565 0.16192801 0.16000348 0.15810178 0.15622263 0.15436576 0.15253094 0.15071788 0.14892633 0.14715604 0.14540677 0.14367825 0.14197025 0.14028251 0.13861482 0.13696691 0.13533857 0.13372956 0.13213965 0.13056861 0.12901624 0.1274823 0.12596656 0.124468826 0.12298888 0.12152651 0.12008151 0.11865367 0.11724279 0.11584867 0.11447111 0.11310991 0.11176488 0.11043583 0.10912257 0.10782491 0.10654267 0.10527566 0.10402371 0.10278663 0.10156426 0.10035641 0.09916291 0.09798359 0.09681829 0.09566684 0.09452907 0.09340482 0.09229394 0.09119626 0.09011162 0.089039885 0.087980874 0.08693446 0.085900486 0.084878795 0.083869256 0.08287171 0.08188603 0.08091206 0.07994968 0.07899873 0.07805909 0.07713062 0.076213196 0.07530667 0.07441092 0.07352583 0.07265126 0.07178708 0.070933186 0.07008944 0.069255725 0.06843193 0.06761792 0.066813596 0.066018835 0.06523353 0.06445756 0.06369081 0.062933184 0.06218457 0.061444853 0.060713936 0.05999171 0.059278075 0.058572922 0.05787616 0.05718768 0.05650739 0.05583519 0.055170987 0.05451468 0.05386618 0.053225394 0.052592225 0.051966593 0.051348396 0.050737552 0.050133977

</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="3.05" PeakHeight="285.98" Num="5" zHalfNm="252.64" Error="3.398">
-79.068 14.631 -10.365 4.987 -1.14
</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="6515.008" A="-1.24025012E11" B="3.8279324E7" C="-2953.5264" Error="0.00172"/>
<QuasiParabolic ID="2" StartDistance="6515.008" EndDistance="6550.017" A="0.0" B="-1753.154" C="0.3091274" Error="0.0368"/>
<QuasiParabolic ID="3" StartDistance="6550.017" EndDistance="6566.0" A="1.00440457E11" B="-3.071399E7" C="2348.0671" Error="0.0368"/>
<QuasiParabolic ID="4" StartDistance="6566.0" EndDistance="6584.0" A="-2.03502989E9" B="499988.53" C="-28.873026" Error="0.0125"/>
<QuasiParabolic ID="5" StartDistance="6584.0" EndDistance="6588.0" A="5.2952281E12" B="-1.60863219E9" C="122171.32" Error="0.0265"/>
<QuasiParabolic ID="6" StartDistance="6588.0" EndDistance="6595.0" A="1.28735366E12" B="-3.91912576E8" C="29827.695" Error="0.0173"/>
<QuasiParabolic ID="7" StartDistance="6595.0" EndDistance="6606.0" A="3.92338997E12" B="-1.19131712E9" C="90434.555" Error="0.00531"/>
<QuasiParabolic ID="8" StartDistance="6606.0" EndDistance="6625.0" A="1.49758107E13" B="-4.5374935E9" C="343702.53" Error="0.0309"/>
<QuasiParabolic ID="9" StartDistance="6625.0" EndDistance="6631.0" A="-3.10011977E13" B="9.3423585E9" C="-703833.44" Error="0.0149"/>
<QuasiParabolic ID="10" StartDistance="6631.0" EndDistance="6655.98" A="-7.0901333E12" B="2.13045517E9" C="-160031.38" Error="0.00997"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="105.025" Depth="0.154"/>
<TopsideChapman PeakHeight="285.98" PeakDensity="115415.63" PeakScaleHeight="26.11" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
