<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-14 -104 23:45:00.000"
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 22 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 70% PACIFIC flags: F2x cusp not found, One of F2 cusps was derived from the other</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.14 (104) 23:45:00</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">
FF202610404142345001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.875" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.137" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="9.019" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.425" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.425" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.150" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="322.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="322.500" 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="0.125" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.825" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="378.574" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.425" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.425" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="303.663" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="268.614" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="5.088" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="50.029" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.155" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="26.001" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="51.730" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.860" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="19">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
322.500 322.500 322.500 325.000 330.000 332.500 335.000 337.500 340.000 343.750 347.500 352.500 357.500 361.250 366.468 372.214 378.574 385.649 393.569
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
72 75 72 69 69 0 0 69 66 0 66 0 66 0 0 69 45 45 57
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="594">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 144.776 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 179.552 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 214.328 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 303.663 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0 600.0 601.0 602.0 603.0 604.0 605.0 606.0 607.0 608.0 609.0 610.0 611.0 612.0 613.0 614.0 615.0 616.0 617.0 618.0 619.0 620.0 621.0 622.0 623.0 624.0 625.0 626.0 627.0 628.0 629.0 630.0 631.0 632.0 633.0 634.0 635.0 636.0 637.0 638.0 639.0 640.0 641.0 642.0 643.0 644.0 645.0 646.0 647.0 648.0 649.0 650.0 651.0 652.0 653.0 654.0 655.0 656.0 657.0 658.0 659.0 660.0 661.0 662.0 663.0 664.0 665.0 666.0 667.0 668.0 669.0 670.0 671.0 672.0 673.0 674.0 675.0 676.0 677.0 678.0 679.0 680.0 681.0 682.0
</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 0.35042325 0.34913787 0.34764504 0.34595087 0.34406236 0.3419169 0.3395955 0.33703944 0.33426252 0.33127964 0.3279784 0.32451025 0.32071048 0.316732 0.31242865 0.30784476 0.30297384 0.29776984 0.29227984 0.28637716 0.2800929 0.27348366 0.2663434 0.25879556 0.2507284 0.24215807 0.23289482 0.22296855 0.21233663 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 0.2019839 0.20641224 0.21084058 0.21526892 0.21969727 0.22412561 0.22855395 0.2329823 0.23741063 0.24183898 0.2462673 0.25069565 0.255124 0.25955233 0.2639807 0.268409 0.27283737 0.2772657 0.28169405 0.28612238 0.29055074 0.29497907 0.2994074 0.30383575 0.30826408 0.31269243 0.31712076 0.32154912 0.32597744 0.3304058 0.33483413 0.3392625 0.3436908 0.34811917 0.3525475 0.354 0.3666654 0.3853025 0.4038985 0.42261955 0.44158697 0.4608997 0.48063472 0.50085694 0.52162606 0.5429923 0.5650052 0.5876959 0.6111061 0.6352612 0.6601881 0.6859021 0.71241575 0.7397302 0.76784813 0.7967654 0.82646304 0.8569163 0.8881025 0.91998905 0.95254225 0.98571944 1.01947 1.0537642 1.0885433 1.1237621 1.1593822 1.1953577 1.2316359 1.2681838 1.304961 1.3419324 1.3790625 1.4163207 1.4536746 1.4910967 1.5285683 1.5660628 1.6035568 1.6410291 1.6784657 1.7158391 1.7531419 1.7903568 1.8274543 1.864434 1.9012724 1.9379492 1.9744455 2.010757 2.0468507 2.0827131 2.1183283 2.1536589 2.1886935 2.2233984 2.2577553 2.2917273 2.3252804 2.3583798 2.3909957 2.4230776 2.4545913 2.485476 2.5156934 2.545179 2.5738852 2.601738 2.6286821 2.654646 2.6795542 2.7033348 2.7259061 2.747191 2.7671065 2.785575 2.8025115 2.8178418 2.831486 2.8433764 2.853448 2.8616443 2.8679187 2.8722322 2.8745596 2.875 2.874953 2.8742657 2.8727746 2.8705 2.8674629 2.8636832 2.859182 2.8539796 2.8480966 2.841554 2.834372 2.826571 2.8181715 2.8091936 2.7996573 2.7895823 2.778988 2.767894 2.7563193 2.7442827 2.7318027 2.7188978 2.7055857 2.691884 2.6778102 2.6633813 2.648614 2.6335247 2.6181288 2.6024427 2.5864813 2.5702598 2.5537925 2.5370936 2.5201774 2.503057 2.485746 2.4682567 2.4506018 2.4327939 2.414844 2.396764 2.3785648 2.3602576 2.3418524 2.3233595 2.3047886 2.2861495 2.267451 2.248702 2.2299116 2.2110875 2.1922379 2.1733706 2.1544929 2.135612 2.116735 2.0978682 2.0790184 2.0601914 2.041393 2.0226295 2.0039055 1.985227 1.9665985 1.948025 1.929511 1.9110607 1.8926786 1.8743684 1.8561342 1.8379794 1.8199075 1.801922 1.7840257 1.7662215 1.7485126 1.7309014 1.7133904 1.695982 1.6786784 1.6614817 1.6443942 1.6274172 1.6105528 1.5938025 1.5771677 1.5606501 1.5442507 1.5279709 1.5118117 1.4957741 1.4798591 1.4640675 1.4483999 1.4328572 1.4174397 1.4021482 1.3869832 1.3719448 1.3570335 1.3422494 1.327593 1.313064 1.2986628 1.2843894 1.2702436 1.2562255 1.2423348 1.2285715 1.2149354 1.2014261 1.1880434 1.174787 1.1616565 1.1486515 1.1357715 1.1230162 1.1103851 1.0978775 1.0854931 1.0732311 1.0610911 1.0490724 1.0371743 1.0253963 1.0137377 1.0021976 0.9907756 0.9794708 0.9682825 0.95720994 0.94625235 0.935409 0.92467904 0.9140617 0.9035562 0.8931617 0.8828774 0.8727025 0.862636 0.8526772 0.8428253 0.8330793 0.8234384 0.8139018 0.8044686 0.7951378 0.78590876 0.7767804 0.76775205 0.7588227 0.7499914 0.7412575 0.73261994 0.72407794 0.71563053 0.707277 0.69901633 0.6908477 0.68277025 0.6747831 0.66688544 0.65907633 0.6513549 0.64372045 0.636172 0.6287087 0.6213298 0.61403435 0.6068216 0.5996906 0.5926407 0.585671 0.57878065 0.57196885 0.56523484 0.5585777 0.5519968 0.5454913 0.5390603 0.5327031 0.526419 0.5202071 0.5140667 0.50799704 0.5019973 0.49606687 0.4902049 0.4844107 0.4786835 0.47302264 0.46742734 0.46189696 0.4564307 0.45102793 0.44568792 0.44041002 0.4351935 0.43003774 0.42494205 0.41990572 0.41492817 0.41000867 0.40514663 0.40034142 0.39559236 0.39089882 0.38626024 0.38167596 0.37714535 0.37266788 0.36824286 0.36386976 0.35954797 0.35527694 0.35105607 0.34688476 0.3427625 0.33868873 0.33466285 0.33068436 0.32675272 0.32286736 0.31902778 0.31523344 0.31148383 0.30777845 0.30411676 0.30049828 0.2969225 0.29338896 0.2898971 0.28644654 0.28303674 0.27966723 0.27633753 0.27304724 0.26979586 0.26658294 0.26340806 0.26027074 0.25717056 0.2541071 0.25107992 0.2480886 0.24513271 0.24221188 0.23932564 0.23647363 0.23365545 0.2308707 0.22811896 0.22539987 0.22271305 0.22005811 0.2174347 0.21484242 0.21228093 0.20974985 0.20724884 0.20477752 0.20233557 0.19992264 0.19753838 0.19518244 0.19285452 0.19055428 0.18828137 0.1860355 0.18381633 0.18162356 0.17945687 0.17731595 0.1752005 0.17311022 0.17104481 0.169004 0.16698745 0.16499491 0.1630261 0.16108072 0.1591585 0.15725917 0.15538245 0.15352808 0.1516958 0.14988534 0.14809644 0.14632887 0.14458233 0.14285661 0.14115146 0.13946661 0.13780184 0.13615692 0.13453159 0.13292564 0.13133882 0.12977093 0.12822172 0.12669098 0.12517849 0.12368403 0.12220738 0.12074834 0.1193067 0.11788225 0.11647479 0.11508411 0.113710016 0.11235231 0.1110108 0.10968529 0.10837558 0.1070815 0.10580286 0.10453947 0.103291154 0.102057725 0.10083901 0.09963484 0.098445036 0.09726943 0.09610785 0.09496013 0.09382611 0.09270561 0.09159849 0.09050458 0.08942372 0.088355765 0.087300554 0.086257935 0.085227765 0.08420989 0.08320416 0.08221043 0.08122857 0.08025842 0.07929986 0.078352734 0.07741692 0.07649228 0.075578675 0.07467597 0.073784046 0.07290277 0.07203202 0.071171656 0.07032157 0.06948163 0.06865172 0.06783172 0.06702151 0.06622097 0.06542999 0.06464846 0.06387626 0.06311327 0.0623594 0.06161453 0.060878552 0.060151365 0.05943286 0.058722936 0.05802149 0.057328418 0.056643624 0.055967007 0.05529847 0.054637916 0.05398525 0.05334038 0.052703213 0.05207365 0.05145161 0.050837 0.050229724

</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="2.875" PeakHeight="303.663" Num="5" zHalfNm="268.614" Error="1.347">
-86.873 -4.332 2.819 -1.579 0.63
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="9" 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="6514.776" A="-1.25671809E11" B="3.8787596E7" C="-2992.7446" Error="0.00167"/>
<QuasiParabolic ID="2" StartDistance="6514.776" EndDistance="6549.552" A="0.0" B="1875.7554" C="-0.2478874" Error="0.0373"/>
<QuasiParabolic ID="3" StartDistance="6549.552" EndDistance="6581.0" A="9.5012557E9" B="-2997042.0" C="236.1416" Error="0.0373"/>
<QuasiParabolic ID="4" StartDistance="6581.0" EndDistance="6593.0" A="1.66156999E12" B="-5.05069312E8" C="38381.73" Error="0.0374"/>
<QuasiParabolic ID="5" StartDistance="6593.0" EndDistance="6599.0" A="1.30657118E12" B="-3.9737968E8" C="30214.766" Error="0.00799"/>
<QuasiParabolic ID="6" StartDistance="6599.0" EndDistance="6643.0" A="2.92354654E12" B="-8.8744646E8" C="67346.664" Error="0.0186"/>
<QuasiParabolic ID="7" StartDistance="6643.0" EndDistance="6662.0" A="-1.95078429E12" B="5.8006246E8" C="-43108.62" Error="0.0047"/>
<QuasiParabolic ID="8" StartDistance="6662.0" EndDistance="6673.663" A="-1.06409503E13" B="3.1889385E9" C="-238911.39" Error="0.00181"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="104.328" Depth="0.154"/>
<TopsideChapman PeakHeight="303.663" PeakDensity="102551.18" PeakScaleHeight="26.001" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
