<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-26 -146 03:20:00.000"
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: 95% PACIFIC flags: Multiple candidates for F2x cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.26 (146) 03:20:00</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">
FF202614605260320001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.750" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.989" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="8.221" 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="2.950" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="365.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="365.000" 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="0.175" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.675" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="403.654" 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="325.646" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="284.698" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.753" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="58.332" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.233" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="30.370" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="60.190" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.880" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="12">
<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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
365.000 368.253 371.825 375.765 380.132 385.000 390.461 396.630 403.654 411.725 421.094 432.104
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
63 69 0 66 66 66 63 0 63 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 -10.9375 -1.5625 -1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="675">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 147.62733 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 185.25467 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 222.882 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 325.646 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0 600.0 601.0 602.0 603.0 604.0 605.0 606.0 607.0 608.0 609.0 610.0 611.0 612.0 613.0 614.0 615.0 616.0 617.0 618.0 619.0 620.0 621.0 622.0 623.0 624.0 625.0 626.0 627.0 628.0 629.0 630.0 631.0 632.0 633.0 634.0 635.0 636.0 637.0 638.0 639.0 640.0 641.0 642.0 643.0 644.0 645.0 646.0 647.0 648.0 649.0 650.0 651.0 652.0 653.0 654.0 655.0 656.0 657.0 658.0 659.0 660.0 661.0 662.0 663.0 664.0 665.0 666.0 667.0 668.0 669.0 670.0 671.0 672.0 673.0 674.0 675.0 676.0 677.0 678.0 679.0 680.0 681.0 682.0 683.0 684.0 685.0 686.0 687.0 688.0 689.0 690.0 691.0 692.0 693.0 694.0 695.0 696.0 697.0 698.0 699.0 700.0 701.0 702.0 703.0 704.0 705.0 706.0 707.0 708.0 709.0 710.0 711.0 712.0 713.0 714.0 715.0 716.0 717.0 718.0 719.0 720.0 721.0 722.0 723.0 724.0 725.0 726.0 727.0 728.0 729.0 730.0 731.0 732.0 733.0 734.0 735.0 736.0 737.0 738.0 739.0 740.0 741.0 742.0 743.0 744.0 745.0 746.0 747.0 748.0 749.0 750.0 751.0 752.0 753.0 754.0 755.0 756.0 757.0 758.0 759.0 760.0 761.0 762.0 763.0
</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 0.32241878 0.3188024 0.3150028 0.31093168 0.3066255 0.3020179 0.297186 0.2921084 0.28666645 0.28086895 0.27482745 0.26836044 0.2615177 0.2542185 0.2465146 0.23829278 0.22950488 0.22014055 0.21018828 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 0.20305048 0.20714325 0.21123601 0.21532878 0.21942155 0.22351432 0.2276071 0.23169987 0.23579264 0.2398854 0.24397817 0.24807094 0.2521637 0.2562565 0.26034924 0.26444203 0.26853478 0.27262756 0.27672032 0.2808131 0.28490588 0.28899863 0.29309142 0.29718417 0.30127695 0.3053697 0.3094625 0.31355524 0.31764802 0.3217408 0.32583356 0.32992634 0.3340191 0.33811188 0.34220463 0.3462974 0.35039017 0.354 0.35590568 0.37187886 0.38768196 0.40345663 0.4193095 0.43532196 0.45155555 0.46806982 0.48490503 0.5021043 0.5197045 0.5377349 0.556225 0.57520497 0.5946886 0.61470467 0.6352639 0.6563836 0.6780749 0.70033985 0.7231865 0.74660957 0.77061033 0.79517674 0.82029957 0.8459645 0.87214875 0.89883256 0.9259987 0.9536081 0.9816424 1.0100724 1.038865 1.0679905 1.0974159 1.1271209 1.1570657 1.1872238 1.2175739 1.2480886 1.2787405 1.3095021 1.3403624 1.3712983 1.4022863 1.4333078 1.4643486 1.495403 1.5264397 1.55746 1.5884398 1.6193771 1.6502538 1.6810633 1.7117885 1.7424266 1.7729678 1.8033919 1.8336993 1.8638787 1.8939091 1.923797 1.9535177 1.9830625 2.0124183 2.041579 2.0705218 2.0992413 2.1277149 2.1559303 2.183868 2.2115068 2.2388315 2.2658188 2.2924454 2.3186896 2.3445213 2.369913 2.39484 2.4192648 2.4431605 2.4664862 2.4892068 2.5112884 2.5326843 2.5533528 2.5732527 2.5923364 2.6105576 2.6278708 2.6442254 2.6595776 2.6738718 2.6870677 2.699119 2.709979 2.719608 2.7279685 2.7350247 2.7407494 2.745116 2.7481072 2.7497082 2.75 2.7499635 2.7494712 2.7484128 2.7468004 2.7446468 2.7419636 2.7387636 2.7350593 2.7308626 2.7261863 2.7210426 2.7154438 2.7094026 2.7029307 2.6960404 2.688744 2.6810534 2.6729803 2.664537 2.6557345 2.646585 2.6370995 2.6272895 2.617166 2.6067405 2.596023 2.5850248 2.5737565 2.5622282 2.55045 2.5384324 2.5261848 2.513717 2.5010386 2.488159 2.4750872 2.4618323 2.448403 2.4348075 2.421055 2.4071534 2.3931105 2.3789346 2.3646333 2.3502138 2.3356838 2.3210504 2.3063204 2.2915008 2.2765982 2.261619 2.2465699 2.2314563 2.2162848 2.2010608 2.1857903 2.1704786 2.1551309 2.1397526 2.1243486 2.108924 2.0934832 2.078031 2.062572 2.04711 2.0316496 2.0161948 2.0007493 1.985317 1.9699016 1.9545065 1.9391353 1.923791 1.9084771 1.8931965 1.8779521 1.8627467 1.8475832 1.8324641 1.8173921 1.8023695 1.7873985 1.7724816 1.7576208 1.7428182 1.7280759 1.7133955 1.698779 1.6842282 1.6697445 1.6553297 1.6409853 1.6267124 1.6125128 1.5983875 1.5843378 1.570365 1.5564698 1.5426537 1.5289173 1.5152619 1.501688 1.4881965 1.4747883 1.461464 1.4482243 1.4350697 1.4220009 1.4090184 1.3961226 1.3833139 1.3705928 1.3579596 1.3454146 1.3329581 1.3205905 1.3083117 1.2961221 1.2840217 1.2720107 1.2600892 1.2482573 1.2365148 1.2248619 1.2132986 1.2018247 1.1904402 1.179145 1.167939 1.1568221 1.1457939 1.1348546 1.1240036 1.1132411 1.1025665 1.0919797 1.0814805 1.0710684 1.0607433 1.0505049 1.0403528 1.0302867 1.0203061 1.0104108 1.0006003 0.9908744 0.9812326 0.97167444 0.9621996 0.95280766 0.9434981 0.93427056 0.9251245 0.9160596 0.9070754 0.8981713 0.8893469 0.88060176 0.87193537 0.86334723 0.8548369 0.8464038 0.83804744 0.82976747 0.8215632 0.81343424 0.80538 0.7974 0.78949374 0.78166074 0.7739004 0.7662122 0.7585957 0.7510503 0.7435755 0.7361708 0.72883564 0.72156954 0.714372 0.7072423 0.7001802 0.6931849 0.6862561 0.6793932 0.67259556 0.6658628 0.6591944 0.65258974 0.6460484 0.6395698 0.6331535 0.62679887 0.62050545 0.6142728 0.6081003 0.6019875 0.59593385 0.5899389 0.58400214 0.57812303 0.57230115 0.5665359 0.5608269 0.5551735 0.54957545 0.54403204 0.5385429 0.5331076 0.52772546 0.5223962 0.5171193 0.5118943 0.50672066 0.50159794 0.49652576 0.4915036 0.486531 0.48160753 0.4767327 0.47190613 0.46712732 0.46239588 0.4577113 0.45307323 0.4484812 0.44393477 0.43943352 0.43497705 0.4305649 0.42619672 0.42187205 0.4175905 0.41335163 0.40915507 0.40500042 0.40088728 0.39681524 0.3927839 0.38879293 0.3848419 0.38093042 0.37705812 0.37322465 0.36942962 0.36567265 0.3619534 0.35827148 0.35462657 0.35101825 0.3474462 0.3439101 0.34040955 0.33694422 0.3335138 0.3301179 0.3267562 0.32342842 0.32013416 0.3168731 0.31364495 0.3104494 0.30728605 0.30415466 0.3010549 0.29798642 0.29494897 0.2919422 0.28896585 0.2860196 0.28310314 0.28021616 0.2773584 0.2745296 0.27172944 0.2689576 0.26621386 0.26349792 0.26080948 0.2581483 0.25551412 0.25290662 0.25032556 0.24777071 0.24524176 0.24273847 0.24026059 0.23780787 0.23538004 0.23297687 0.23059809 0.2282435 0.22591281 0.22360581 0.22132225 0.2190619 0.21682453 0.2146099 0.21241781 0.210248 0.20810026 0.20597436 0.20387009 0.20178723 0.19972558 0.1976849 0.195665 0.19366565 0.19168667 0.18972783 0.18778895 0.1858698 0.1839702 0.18208995 0.18022887 0.17838675 0.17656338 0.17475861 0.17297223 0.17120405 0.1694539 0.16772158 0.16600694 0.16430977 0.16262992 0.16096719 0.15932141 0.15769242 0.15608005 0.15448412 0.15290448 0.15134095 0.14979337 0.14826159 0.14674543 0.14524475 0.14375938 0.14228918 0.14083397 0.13939363 0.13796799 0.1365569 0.13516021 0.1337778 0.13240948 0.13105515 0.12971464 0.12838782 0.12707455 0.1257747 0.12448812 0.123214684 0.12195425 0.12070669 0.119471885 0.118249685 0.11703998 0.115842625 0.11465751 0.113484494 0.11232347 0.111174315 0.110036895 0.1089111 0.10779681 0.10669391 0.10560228 0.1045218 0.10345238 0.10239388 0.1013462 0.10030923 0.09928286 0.09826698 0.09726149 0.09626627 0.09528123 0.09430626 0.09334126 0.09238613 0.09144075 0.09050505 0.08957891 0.088662244 0.08775495 0.08685694 0.08596811 0.08508836 0.084217615 0.08335577 0.08250274 0.08165844 0.080822766 0.07999564 0.07917698 0.07836668 0.07756468 0.07677088 0.0759852 0.075207554 0.074437864 0.07367604 0.07292202 0.072175704 0.07143703 0.070705906 0.06998226 0.06926602 0.068557106 0.06785545 0.067160964 0.06647359 0.06579324 0.065119855 0.064453356 0.06379368 0.06314075 0.0624945 0.061854865 0.061221775 0.06059516 0.059974957 0.059361096 0.05875352 0.05815216 0.057556953 0.056967836 0.056384746 0.055807624 0.055236407 0.054671034 0.054111447 0.053557586 0.05300939 0.052466806 0.051929776 0.05139824 0.050872143 0.05035143

</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="2.75" PeakHeight="325.646" Num="5" zHalfNm="284.698" Error="1.539">
-100.113 -4.689 3.106 -1.801 0.733
</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="6517.627" A="-1.07435295E11" B="3.3159042E7" C="-2558.4429" Error="0.00177"/>
<QuasiParabolic ID="2" StartDistance="6517.627" EndDistance="6555.255" A="0.0" B="312.3746" C="-0.007885753" Error="0.00583"/>
<QuasiParabolic ID="3" StartDistance="6555.255" EndDistance="6592.0" A="2.87618826E10" B="-8848047.0" C="680.4771" Error="0.00583"/>
<QuasiParabolic ID="4" StartDistance="6592.0" EndDistance="6594.0" A="4.8159806E12" B="-1.4612809E9" C="110846.805" Error="0.0093"/>
<QuasiParabolic ID="5" StartDistance="6594.0" EndDistance="6595.0" A="-1.44766127E12" B="4.38519488E8" C="-33208.43" Error="5.26E-11"/>
<QuasiParabolic ID="6" StartDistance="6595.0" EndDistance="6608.0" A="8.8680694E11" B="-2.69431456E8" C="20464.883" Error="0.00763"/>
<QuasiParabolic ID="7" StartDistance="6608.0" EndDistance="6628.0" A="2.06035891E12" B="-6.2462272E8" C="47340.734" Error="0.00917"/>
<QuasiParabolic ID="8" StartDistance="6628.0" EndDistance="6654.0" A="2.03860437E12" B="-6.180583E8" C="46845.53" Error="0.00739"/>
<QuasiParabolic ID="9" StartDistance="6654.0" EndDistance="6680.0" A="-3.19756272E11" B="9.079672E7" C="-6419.8003" Error="0.00909"/>
<QuasiParabolic ID="10" StartDistance="6680.0" EndDistance="6695.646" A="-7.0590724E12" B="2.10855603E9" C="-157449.69" Error="0.0032"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="112.882" Depth="0.154"/>
<TopsideChapman PeakHeight="325.646" PeakDensity="93827.55" PeakScaleHeight="30.37" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
