<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-15 -135 20:50:00.000"
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="20.0">
<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: 90% PACIFIC flags: Multiple candidates for F2x cusp, Multiple candidates for F2o cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.15 (135) 20:50:00</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">
FF202613505152050001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="5.000" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.623" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="18.115" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.050" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.050" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="5.325" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="222.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="222.500" 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="4.775" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="280.434" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="1.075" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.050" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.050" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="235.303" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="199.722" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="7.027" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="50.321" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="3.672" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="27.371" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="49.030" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.480" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="79">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 3.425 3.45 3.475 3.5 3.525 3.55 3.575 3.6 3.625 3.65 3.675 3.7 3.725 3.75 3.775 3.8 3.825 3.85 3.875 3.9 3.925 3.95 3.975 4.0 4.025 4.05 4.075 4.1 4.125 4.15 4.175 4.2 4.225 4.25 4.275 4.3 4.325 4.35 4.375 4.4 4.425 4.45 4.475 4.5 4.525 4.55 4.575 4.6 4.625 4.65 4.675 4.7 4.725 4.75 4.775 4.8 4.825 4.85 4.875 4.9 4.925 4.95 4.975 5.0
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
222.500 222.500 222.500 222.500 222.500 222.500 222.500 222.500 222.500 225.000 225.000 225.000 225.000 225.000 225.000 227.500 227.500 227.500 227.500 230.000 230.000 230.000 230.000 230.000 230.000 230.000 232.500 232.500 232.500 232.500 232.500 235.000 235.000 235.000 237.500 237.500 237.500 240.000 240.000 240.000 240.000 242.500 242.500 242.500 245.000 245.000 247.500 247.500 247.500 247.500 250.000 250.000 252.500 252.500 255.000 255.000 255.000 257.500 257.500 260.000 260.000 262.500 265.000 267.500 270.000 270.000 272.500 275.000 277.512 280.434 283.877 287.990 292.994 299.212 307.145 317.619 332.085 353.366 387.757
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 69 69 72 75 84 84 69 72 96 96 66 66 66 69 81 84 72 72 75 75 63 63 63 60 84 84 60 57 54 51 69 69 84 84 84 84 69 72 72 72 81 84 84 81 84 81 75 78 75 72 75 69 72 66 45 45 45 45 54 51 75 72 69 69 69 72 57 0 0 66 69 69 81 81 69 66 63 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 3.125 -3.125 -3.125 -3.125 3.125 -3.125 -3.125 3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 3.125 3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 3.125 -3.125 3.125 -3.125 -3.125 -3.125 -3.125 -3.125 3.125 -3.125
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="597">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
90.2 91.0 92.0 93.0 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 127.68867 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 145.37733 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 163.066 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 235.303 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0 600.0 601.0 602.0 603.0 604.0 605.0 606.0 607.0 608.0 609.0 610.0 611.0 612.0 613.0 614.0 615.0 616.0 617.0 618.0 619.0 620.0 621.0 622.0 623.0 624.0 625.0 626.0 627.0 628.0 629.0 630.0 631.0 632.0 633.0 634.0 635.0 636.0 637.0 638.0 639.0 640.0 641.0 642.0 643.0 644.0 645.0 646.0 647.0 648.0 649.0 650.0 651.0 652.0 653.0 654.0 655.0 656.0 657.0 658.0 659.0 660.0 661.0 662.0 663.0 664.0 665.0 666.0 667.0 668.0 669.0 670.0 671.0 672.0 673.0 674.0 675.0 676.0 677.0 678.0 679.0 680.0 681.0 682.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.31204528 0.467393 0.57156587 0.6509649 0.71609455 0.7715054 0.81955624 0.8616521 0.8987119 0.931357 0.9600392 0.98508865 1.0067488 1.0252113 1.0406275 1.0531038 1.0627261 1.0695583 1.0736415 1.075 1.0742981 1.0721375 1.0685474 1.0634636 1.056914 1.0489023 1.0393635 1.0282423 1.01549 1.0011196 0.9850814 0.9672207 0.947464 0.92572784 0.9018738 0.87563616 0.84700495 0.825 0.825 0.825 0.825 0.825 0.825 0.825 0.825 0.825 0.825 0.825 0.825 0.825 0.825 0.825 0.825 0.825 0.825 0.825 0.825 0.8338004 0.8479337 0.86206704 0.8762004 0.8903337 0.9044671 0.91860044 0.9327338 0.9468671 0.96100044 0.9751338 0.9892671 1.0034004 1.0175338 1.0316671 1.0458006 1.0599339 1.0740672 1.075 1.1210859 1.1714915 1.2228413 1.2750441 1.3280458 1.3818061 1.4363253 1.4916135 1.5477035 1.6046153 1.6624087 1.7211156 1.780791 1.8415048 1.9033027 1.9662303 2.0303442 2.0956974 2.1623378 2.2302961 2.2996273 2.3703341 2.4424198 2.5159242 2.5907848 2.6669917 2.7444904 2.8231835 2.9029508 2.9836826 3.0651987 3.1472867 3.2297506 3.312326 3.3947577 3.4767637 3.5580437 3.6383307 3.7173474 3.7948318 3.8705595 3.944286 4.0158577 4.0851007 4.1518865 4.2161393 4.2777734 4.336732 4.3930025 4.446565 4.497436 4.5456176 4.5911417 4.634039 4.67434 4.7120953 4.747337 4.7801147 4.8104625 4.838429 4.864054 4.88737 4.9084125 4.9272175 4.943814 4.958224 4.9704757 4.980587 4.988573 4.994449 4.998224 4.999904 5.0 4.9996853 4.9981475 4.995357 4.991345 4.9861407 4.979776 4.9722805 4.963686 4.9540224 4.943321 4.9316125 4.9189267 4.9052944 4.890746 4.875311 4.8590183 4.8418984 4.8239794 4.8052907 4.7858596 4.765715 4.744884 4.7233934 4.7012706 4.6785407 4.6552305 4.631365 4.6069684 4.582066 4.556681 4.530837 4.504557 4.477864 4.450778 4.423322 4.3955164 4.367382 4.3389378 4.310204 4.281199 4.251941 4.222449 4.192739 4.162829 4.1327353 4.1024733 4.072059 4.0415077 4.0108333 3.9800506 3.9491732 3.918214 3.8871868 3.856103 3.8249753 3.7938151 3.762634 3.7314425 3.700251 3.66907 3.637909 3.6067774 3.5756845 3.5446389 3.5136487 3.4827225 3.4518673 3.4210913 3.3904011 3.359804 3.329306 3.2989137 3.2686331 3.2384698 3.2084296 3.1785173 3.1487384 3.1190972 3.0895984 3.0602462 3.031045 3.0019982 2.97311 2.9443834 2.915822 2.887429 2.859207 2.8311589 2.8032873 2.7755945 2.7480829 2.7207546 2.6936116 2.6666555 2.6398883 2.6133113 2.5869262 2.5607338 2.534736 2.508933 2.4833264 2.457917 2.4327052 2.407692 2.3828776 2.3582628 2.3338478 2.3096328 2.285618 2.2618039 2.2381902 2.2147768 2.1915638 2.168551 2.145738 2.1231246 2.1007106 2.0784957 2.056479 2.0346603 2.013039 1.9916145 1.970386 1.949353 1.9285146 1.9078702 1.8874189 1.8671598 1.8470922 1.8272148 1.8075272 1.788028 1.7687165 1.7495914 1.7306519 1.7118967 1.6933248 1.6749352 1.6567267 1.6386982 1.6208484 1.6031764 1.5856806 1.5683601 1.5512135 1.5342398 1.5174376 1.5008056 1.4843427 1.4680475 1.4519188 1.4359553 1.4201558 1.4045188 1.3890432 1.3737277 1.3585709 1.3435715 1.3287283 1.31404 1.2995051 1.2851225 1.2708908 1.2568089 1.2428751 1.2290884 1.2154474 1.2019509 1.1885974 1.175386 1.1623149 1.1493832 1.1365894 1.1239325 1.1114109 1.0990236 1.0867691 1.0746464 1.0626541 1.050791 1.039056 1.0274475 1.0159646 1.004606 0.9933705 0.9822568 0.9712639 0.96039045 0.9496354 0.9389974 0.92847544 0.9180683 0.9077748 0.89759386 0.88752437 0.8775651 0.867715 0.857973 0.84833795 0.8388087 0.82938427 0.82006353 0.81084543 0.8017289 0.7927129 0.7837964 0.77497834 0.7662577 0.7576335 0.7491047 0.7406702 0.73232925 0.7240806 0.71592355 0.7078569 0.69987977 0.69199127 0.6841904 0.67647624 0.6688479 0.6613044 0.65384495 0.6464685 0.6391743 0.63196135 0.6248289 0.6177759 0.6108017 0.6039053 0.597086 0.5903429 0.5836751 0.5770819 0.5705624 0.5641159 0.5577415 0.5514385 0.5452061 0.53904355 0.53295 0.5269247 0.52096707 0.5150763 0.5092515 0.5034921 0.49779737 0.49216658 0.48659903 0.481094 0.47565085 0.47026888 0.46494737 0.45968574 0.45448327 0.44933933 0.44425324 0.4392244 0.43425217 0.4293359 0.424475 0.41966885 0.4149168 0.41021833 0.4055728 0.4009796 0.39643818 0.39194798 0.3875084 0.38311887 0.37877885 0.3744878 0.37024516 0.3660504 0.36190295 0.35780233 0.353748 0.34973946 0.34577614 0.3418576 0.33798334 0.3341528 0.33036554 0.3266211 0.32291892 0.3192586 0.31563964 0.31206158 0.30852398 0.30502635 0.3015683 0.29814932 0.29476902 0.29142693 0.28812262 0.28485572 0.28162578 0.27843234 0.27527505 0.2721535 0.26906726 0.26601592 0.26299915 0.2600165 0.25706762 0.2541521 0.2512696 0.24841973 0.24560212 0.24281642 0.24006225 0.23733927 0.23464714 0.23198548 0.22935398 0.22675227 0.22418003 0.22163694 0.21912265 0.21663684 0.21417919 0.21174937 0.2093471 0.20697205 0.20462391 0.20230237 0.20000714 0.19773792 0.19549441 0.19327635 0.1910834 0.18891531 0.18677181 0.1846526 0.1825574 0.18048596 0.17843801 0.17641327 0.17441148 0.17243238 0.17047574 0.16854125 0.16662872 0.16473787 0.16286846 0.16102023 0.15919298 0.15738644 0.15560038 0.1538346 0.15208882 0.15036285 0.14865644 0.1469694 0.14530148 0.14365248 0.14202219 0.1404104 0.13881686 0.13724142 0.13568385 0.13414393 0.1326215 0.13111632 0.12962823 0.128157 0.12670249 0.12526445 0.123842746 0.122437164 0.12104753 0.119673654 0.11831537 0.11697249 0.11564485 0.11433227 0.11303459 0.11175163 0.11048322 0.10922921 0.10798942 0.106763706 0.1055519 0.10435384 0.103169374 0.101998344 0.100840606 0.09969601 0.098564394 0.09744562 0.096339546 0.09524602 0.09416491 0.093096055 0.09203934 0.09099461 0.08996174 0.08894059 0.08793103 0.08693293 0.08594614 0.08497056 0.084006056 0.0830525 0.08210976 0.08117772 0.08025625 0.07934525 0.078444585 0.07755414 0.0766738 0.07580345 0.07494298 0.07409228 0.07325123 0.072419725 0.071597666 0.07078493 0.06998142 0.06918702 0.06840165 0.06762519 0.06685754 0.06609861 0.06534828 0.06460648 0.0638731 0.06314803 0.0624312 0.061722506 0.061021853 0.060329154 0.05964432 0.058967255 0.058297876 0.057636097 0.056981828 0.056334984 0.055695485 0.055063244 0.054438177 0.053820208 0.053209253 0.05260523 0.052008066 0.051417682 0.050833996 0.050256938

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="1.075" PeakHeight="110.0" Num="3" Error="0.0">
-26.822 8.346 -1.324
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="1.075" EndFrequency="5.0" PeakHeight="235.303" Num="5" zHalfNm="199.722" Error="0.546">
-75.27 5.129 -3.403 1.615 -0.308
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="8" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6459.9775" EndDistance="6480.001" A="-5.0524927E12" B="1.55941133E9" C="-120323.79" Error="0.0163"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6497.689" A="-2.69736241E12" B="8.3251923E8" C="-64236.438" Error="0.00158"/>
<QuasiParabolic ID="2" StartDistance="6497.689" EndDistance="6515.377" A="0.0" B="4122.562" C="0.04508137" Error="0.00411"/>
<QuasiParabolic ID="3" StartDistance="6515.377" EndDistance="6532.0" A="1.98027723E11" B="-6.184158E7" C="4827.3643" Error="0.00411"/>
<QuasiParabolic ID="4" StartDistance="6532.0" EndDistance="6535.0" A="3.13501134E13" B="-9.6001413E9" C="734948.25" Error="0.01"/>
<QuasiParabolic ID="5" StartDistance="6535.0" EndDistance="6544.0" A="5.1157333E12" B="-1.57125645E9" C="120649.52" Error="0.0113"/>
<QuasiParabolic ID="6" StartDistance="6544.0" EndDistance="6575.0" A="1.36281273E13" B="-4.17284378E9" C="319426.06" Error="0.0166"/>
<QuasiParabolic ID="7" StartDistance="6575.0" EndDistance="6605.303" A="-1.96388743E13" B="5.9463962E9" C="-450097.9" Error="0.00762"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="53.066" Depth="0.25"/>
<TopsideChapman PeakHeight="235.303" PeakDensity="310173.7" PeakScaleHeight="27.371" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
