<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-12 -132 04:20:00.000"
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 44 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 45% PACIFIC flags: F2o cusp not found, Multiple candidates for F2x cusp, One of F2 cusps was derived from the other, F2O model cusp does not fit trace</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.12 (132) 04:20:00</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">
FF202613205120420001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.825" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.104" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="8.768" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.625" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.625" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.125" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="358.686" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="358.686" 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="0.025" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.725" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="372.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.625" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.625" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="314.046" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="276.708" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.750" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="53.301" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.196" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="28.063" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="53.810" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.040" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="9">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.625 2.65 2.675 2.7 2.725 2.75 2.775 2.8 2.825
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
358.686 360.852 362.500 367.500 372.500 380.000 390.000 407.500 449.608
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 0 0 0 0 0 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-10.9375 1.5625 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="633">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 147.45866 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 184.91733 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 222.376 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 314.046 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0 600.0 601.0 602.0 603.0 604.0 605.0 606.0 607.0 608.0 609.0 610.0 611.0 612.0 613.0 614.0 615.0 616.0 617.0 618.0 619.0 620.0 621.0 622.0 623.0 624.0 625.0 626.0 627.0 628.0 629.0 630.0 631.0 632.0 633.0 634.0 635.0 636.0 637.0 638.0 639.0 640.0 641.0 642.0 643.0 644.0 645.0 646.0 647.0 648.0 649.0 650.0 651.0 652.0 653.0 654.0 655.0 656.0 657.0 658.0 659.0 660.0 661.0 662.0 663.0 664.0 665.0 666.0 667.0 668.0 669.0 670.0 671.0 672.0 673.0 674.0 675.0 676.0 677.0 678.0 679.0 680.0 681.0 682.0 683.0 684.0 685.0 686.0 687.0 688.0 689.0 690.0 691.0 692.0 693.0 694.0 695.0 696.0 697.0 698.0 699.0 700.0 701.0 702.0 703.0 704.0 705.0 706.0 707.0 708.0 709.0 710.0 711.0 712.0 713.0 714.0 715.0 716.0 717.0 718.0 719.0 720.0 721.0
</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 0.34710422 0.34548807 0.34360555 0.34160712 0.33942908 0.3370803 0.33450335 0.33171216 0.3287216 0.32554758 0.32214528 0.31847733 0.3146303 0.3105164 0.30617234 0.30153248 0.29662442 0.29148182 0.28598756 0.2801515 0.27400705 0.2674664 0.2605155 0.2531579 0.24529324 0.23697768 0.22805826 0.21860504 0.20846675 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 0.20033985 0.20445105 0.20856225 0.21267346 0.21678466 0.22089586 0.22500704 0.22911824 0.23322944 0.23734064 0.24145184 0.24556305 0.24967423 0.25378543 0.25789663 0.26200783 0.26611903 0.27023023 0.27434143 0.27845263 0.28256384 0.286675 0.2907862 0.2948974 0.2990086 0.3031198 0.307231 0.3113422 0.3154534 0.3195646 0.3236758 0.327787 0.3318982 0.33600938 0.34012058 0.34423178 0.34834298 0.3524542 0.354 0.36424854 0.38107008 0.39840126 0.41625288 0.43464395 0.45358762 0.47310483 0.49320158 0.5138916 0.53518265 0.55709 0.57961386 0.60276634 0.62654895 0.65096605 0.67602 0.70170754 0.72803164 0.7549853 0.7825677 0.81077206 0.8395858 0.8690023 0.8990163 0.9296094 0.96077216 0.9924822 1.0247294 1.0574942 1.0907549 1.1244946 1.1586936 1.1933299 1.2283728 1.2638022 1.2995948 1.3357188 1.3721464 1.408858 1.4458194 1.483 1.5203711 1.5578959 1.5955546 1.6332995 1.6711129 1.7089413 1.7467728 1.7845558 1.8222611 1.8598471 1.8972832 1.9345273 1.9715464 2.0082965 2.0447414 2.0808396 2.116557 2.1518514 2.1866767 2.2210007 2.2547736 2.287959 2.3205204 2.3524084 2.3835895 2.4140131 2.4436445 2.4724429 2.5003736 2.5273845 2.5534468 2.5785196 2.6025674 2.625545 2.6474273 2.6681745 2.6877537 2.7061367 2.7232907 2.739189 2.7538042 2.7671099 2.779088 2.7897112 2.7989674 2.8068373 2.8133068 2.8183656 2.8220043 2.8242166 2.8249938 2.825 2.8246834 2.823682 2.8220108 2.8196855 2.8167224 2.8131378 2.8089473 2.8041673 2.7988138 2.7929032 2.7864513 2.7794743 2.7719877 2.7640076 2.7555494 2.746629 2.7372615 2.727462 2.717246 2.706628 2.6956227 2.6842449 2.6725082 2.6604273 2.6480157 2.6352873 2.6222548 2.608932 2.5953314 2.5814657 2.5673473 2.5529883 2.5384007 2.5235958 2.5085852 2.49338 2.477991 2.4624288 2.446704 2.430826 2.4148052 2.398651 2.3823726 2.3659794 2.34948 2.3328831 2.316197 2.2994297 2.2825894 2.2656834 2.2487192 2.2317042 2.2146451 2.197549 2.1804223 2.1632712 2.146102 2.1289203 2.1117322 2.0945432 2.0773585 2.0601833 2.0430226 2.0258813 2.0087638 1.9916747 1.9746182 1.9575986 1.9406196 1.9236852 1.906799 1.8899645 1.8731849 1.8564638 1.8398039 1.8232085 1.8066802 1.7902217 1.7738355 1.7575244 1.7412903 1.7251358 1.7090628 1.6930733 1.6771693 1.6613526 1.6456249 1.6299877 1.6144427 1.5989912 1.5836346 1.5683743 1.5532112 1.5381466 1.5231816 1.508317 1.4935538 1.4788927 1.4643345 1.44988 1.4355297 1.4212842 1.4071441 1.3931098 1.3791816 1.36536 1.3516452 1.3380376 1.3245373 1.3111445 1.2978592 1.2846817 1.2716119 1.2586498 1.2457955 1.2330488 1.2204096 1.2078779 1.1954534 1.1831359 1.1709253 1.1588212 1.1468235 1.1349318 1.1231458 1.1114651 1.0998894 1.0884182 1.0770514 1.0657881 1.0546283 1.0435712 1.0326166 1.0217638 1.0110124 1.0003618 0.98981154 0.97936106 0.9690098 0.95875716 0.94860256 0.93854547 0.9285852 0.9187212 0.9089529 0.89927953 0.88970065 0.88021547 0.87082344 0.86152387 0.8523161 0.8431995 0.83417344 0.82523715 0.81639004 0.80763143 0.7989607 0.790377 0.78187984 0.7734685 0.7651422 0.7569003 0.7487422 0.74066716 0.7326745 0.72476345 0.7169335 0.7091838 0.70151377 0.6939227 0.6864099 0.6789747 0.6716164 0.66433436 0.6571279 0.64999634 0.642939 0.6359552 0.62904435 0.6222057 0.6154386 0.6087424 0.6021165 0.59556025 0.5890729 0.5826539 0.5763025 0.57001823 0.56380033 0.5576482 0.5515612 0.5455387 0.53958017 0.53368485 0.52785224 0.5220817 0.51637256 0.5107243 0.50513625 0.49960795 0.4941387 0.48872793 0.48337507 0.47807953 0.4728408 0.46765822 0.46253133 0.45745948 0.45244214 0.4474788 0.44256887 0.43771183 0.43290713 0.42815426 0.42345268 0.41880184 0.41420126 0.40965042 0.40514877 0.40069583 0.3962911 0.3919341 0.38762432 0.38336125 0.37914443 0.3749734 0.3708476 0.36676666 0.36273003 0.35873732 0.354788 0.3508817 0.34701788 0.34319612 0.33941603 0.3356771 0.33197895 0.3283211 0.32470316 0.3211247 0.31758532 0.31408456 0.31062207 0.3071974 0.30381012 0.30045992 0.29714632 0.293869 0.2906275 0.2874215 0.2842506 0.2811144 0.27801257 0.27494472 0.2719105 0.2689095 0.2659414 0.26300588 0.26010257 0.2572311 0.2543911 0.2515823 0.24880432 0.24605684 0.24333952 0.24065207 0.23799413 0.23536539 0.23276556 0.23019427 0.22765127 0.22513622 0.22264883 0.2201888 0.21775582 0.21534961 0.21296988 0.21061634 0.2082887 0.20598668 0.20371 0.2014584 0.19923158 0.19702928 0.19485125 0.19269721 0.1905669 0.18846007 0.18637644 0.18431579 0.18227784 0.18026237 0.1782691 0.17629783 0.17434828 0.17242022 0.17051344 0.16862768 0.16676272 0.16491835 0.16309431 0.1612904 0.15950641 0.1577421 0.15599725 0.15427166 0.15256512 0.15087742 0.14920834 0.14755769 0.14592527 0.14431088 0.1427143 0.14113536 0.13957386 0.13802959 0.13650239 0.13499206 0.1334984 0.13202126 0.13056043 0.12911573 0.12768699 0.12627405 0.12487672 0.123494826 0.1221282 0.12077669 0.11944011 0.11811829 0.1168111 0.11551834 0.11423988 0.112975545 0.111725196 0.11048866 0.109265804 0.108056456 0.10686049 0.10567774 0.10450807 0.10335133 0.102207385 0.10107609 0.0999573 0.09885089 0.097756706 0.09667463 0.095604524 0.09454624 0.093499675 0.092464685 0.09144114 0.09042891 0.08942788 0.08843793 0.08745892 0.08649075 0.08553328 0.08458641 0.083650015 0.08272398 0.08180819 0.08090253 0.08000689 0.07912116 0.07824523 0.07737899 0.076522335 0.07567516 0.074837364 0.07400883 0.07318947 0.07237917 0.07157785 0.07078539 0.07000169 0.069226675 0.06846023 0.06770227 0.066952705 0.066211425 0.065478355 0.0647534 0.06403646 0.06332746 0.06262631 0.061932914 0.061247192 0.060569067 0.05989844 0.05923524 0.05857938 0.05793078 0.05728936 0.05665504 0.056027737 0.055407383 0.05479389 0.054187194 0.05358721 0.052993868 0.052407093 0.051826816 0.05125296 0.05068546 0.05012424

</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="2.825" PeakHeight="314.046" Num="5" zHalfNm="276.708" Error="0.258">
-91.445 -0.409 0.28 -0.165 0.069
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="17" 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="6517.459" A="-1.08401156E11" B="3.3457146E7" C="-2581.4446" Error="0.00177"/>
<QuasiParabolic ID="2" StartDistance="6517.459" EndDistance="6554.917" A="0.0" B="97.314285" C="0.025106171" Error="0.0012"/>
<QuasiParabolic ID="3" StartDistance="6554.917" EndDistance="6556.0" A="-2.19625606E12" B="6.699808E8" C="-51095.355" Error="0.00141"/>
<QuasiParabolic ID="4" StartDistance="6556.0" EndDistance="6557.0" A="2.36468463E12" B="-7.2139827E8" C="55019.586" Error="0.0"/>
<QuasiParabolic ID="5" StartDistance="6557.0" EndDistance="6558.0" A="-2.30195069E12" B="7.0200736E8" C="-53521.332" Error="1.67E-10"/>
<QuasiParabolic ID="6" StartDistance="6558.0" EndDistance="6559.0" A="2.36617938E12" B="-7.2163712E8" C="55021.246" Error="1.61E-10"/>
<QuasiParabolic ID="7" StartDistance="6559.0" EndDistance="6560.0" A="-2.10226866E12" B="6.4090234E8" C="-48846.68" Error="1.55E-10"/>
<QuasiParabolic ID="8" StartDistance="6560.0" EndDistance="6562.0" A="8.9771881E11" B="-2.73728E8" C="20865.996" Error="0.00924"/>
<QuasiParabolic ID="9" StartDistance="6562.0" EndDistance="6564.0" A="-4.2212642E11" B="1.285412E8" C="-9785.42" Error="0.00865"/>
<QuasiParabolic ID="10" StartDistance="6564.0" EndDistance="6591.0" A="3.9833616E10" B="-1.2214448E7" C="936.36865" Error="0.00997"/>
<QuasiParabolic ID="11" StartDistance="6591.0" EndDistance="6595.0" A="3.05032305E12" B="-9.2572966E8" C="70236.57" Error="0.00856"/>
<QuasiParabolic ID="12" StartDistance="6595.0" EndDistance="6598.0" A="1.41068419E11" B="-4.3468984E7" C="3347.9636" Error="0.00696"/>
<QuasiParabolic ID="13" StartDistance="6598.0" EndDistance="6611.0" A="1.7151572E12" B="-5.20610176E8" C="39505.98" Error="0.00459"/>
<QuasiParabolic ID="14" StartDistance="6611.0" EndDistance="6649.0" A="3.02390575E12" B="-9.165408E8" C="69450.81" Error="0.00664"/>
<QuasiParabolic ID="15" StartDistance="6649.0" EndDistance="6668.0" A="-1.71537727E12" B="5.09021888E8" C="-37750.47" Error="0.00543"/>
<QuasiParabolic ID="16" StartDistance="6668.0" EndDistance="6684.046" A="-7.6222499E12" B="2.28072934E9" C="-170601.95" Error="0.00231"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="112.376" Depth="0.154"/>
<TopsideChapman PeakHeight="314.046" PeakDensity="99015.195" PeakScaleHeight="28.063" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
