<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-02-04 -035 07:50:00.000"
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 22 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 70% PACIFIC flags: Multiple candidates for F2x cusp, Multiple candidates for F2o cusp, Unidentified traces above foF2</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.02.04 (035) 07:50:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.15" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.95" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="85.88234" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202603502040750001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.475" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.339" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="14.941" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.125" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.125" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.950" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="250.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="250.000" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="4.250" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="321.203" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.378" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.125" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.125" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="276.353" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="244.769" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.385" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="45.129" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="2.523" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="24.332" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="40.830" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.090" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="55">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
250.000 250.000 250.000 252.500 252.500 252.500 252.500 255.000 255.000 255.000 255.000 257.500 258.750 260.000 260.625 261.250 261.875 262.500 265.000 266.500 268.000 269.500 271.000 272.500 274.375 276.250 278.125 280.000 281.875 283.750 285.625 287.500 289.167 290.833 292.500 295.000 297.500 300.000 302.500 305.000 307.500 310.000 312.500 315.000 317.947 321.203 324.819 328.858 333.399 338.540 344.412 351.179 359.066 368.373 379.524
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 69 72 66 69 69 69 66 69 66 90 90 72 75 0 0 0 60 60 0 0 0 0 60 0 0 0 0 0 0 0 75 0 0 57 0 0 0 0 0 87 84 84 84 72 69 75 78 72 72 0 0 0 0 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 -9.375 3.125 3.125 3.125 -3.125 3.125 -3.125 3.125 3.125 -3.125 -3.125 -3.125 -3.125 -9.375 3.125 3.125 -3.125 3.125 9.375 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="577">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.03 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 140.65633 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 171.31267 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 201.969 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 276.353 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0 600.0 601.0 602.0 603.0 604.0 605.0 606.0 607.0 608.0 609.0 610.0 611.0 612.0 613.0 614.0 615.0 616.0 617.0 618.0 619.0 620.0 621.0 622.0 623.0 624.0 625.0 626.0 627.0 628.0 629.0 630.0 631.0 632.0 633.0 634.0 635.0 636.0 637.0 638.0 639.0 640.0 641.0 642.0 643.0 644.0 645.0 646.0 647.0 648.0 649.0 650.0 651.0 652.0 653.0 654.0 655.0 656.0 657.0 658.0 659.0 660.0 661.0 662.0 663.0 664.0 665.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.22641101 0.24975446 0.26982415 0.2872251 0.30241704 0.3157262 0.32739303 0.33759224 0.34646103 0.3541013 0.3605938 0.36599818 0.3703619 0.3737222 0.37610444 0.37752703 0.378 0.37786964 0.37739196 0.37674233 0.3757499 0.37441975 0.37284416 0.37102965 0.3688166 0.3663437 0.36354154 0.36046714 0.3570588 0.3532627 0.34910932 0.34463167 0.33979416 0.33457235 0.32895422 0.322878 0.3163081 0.3092944 0.30174306 0.29364535 0.2849118 0.2755002 0.2652885 0.2542902 0.24238771 0.22934853 0.21521881 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 0.20399086 0.20979717 0.21560347 0.22140978 0.22721608 0.23302239 0.23882869 0.244635 0.2504413 0.2562476 0.2620539 0.2678602 0.27366653 0.27947283 0.28527912 0.29108542 0.29689175 0.30269805 0.30850434 0.31431064 0.32011697 0.32592326 0.33172956 0.33753586 0.34334216 0.34914848 0.35495478 0.36076108 0.36656737 0.3723737 0.378 0.37863296 0.40045133 0.42503285 0.45252892 0.4829724 0.5162312 0.55206704 0.59013754 0.63013554 0.67177516 0.7148498 0.75921535 0.8048008 0.85159117 0.8996095 0.94889414 0.9995238 1.0515876 1.105209 1.1604843 1.2175461 1.2765582 1.3376368 1.40096 1.4666872 1.5349681 1.6059612 1.6798368 1.7567362 1.8367668 1.9200166 2.0065265 2.0962656 2.189094 2.284788 2.383026 2.4833217 2.5850997 2.6876607 2.7902467 2.892099 2.9924552 3.0906568 3.1860712 3.2782724 3.3668728 3.451653 3.5324607 3.609232 3.6819825 3.7507496 3.815609 3.8766823 3.934071 3.9879196 4.03834 4.085467 4.129415 4.170304 4.208242 4.243329 4.27566 4.3053226 4.3323994 4.356952 4.3790503 4.3987536 4.4161096 4.431163 4.4439526 4.4545093 4.4628625 4.469029 4.4730277 4.474866 4.475 4.474693 4.4730263 4.4699464 4.465492 4.459702 4.4526157 4.4442725 4.4347115 4.423971 4.4120913 4.3991103 4.3850665 4.369999 4.353945 4.3369417 4.319027 4.300237 4.2806077 4.2601748 4.238973 4.2170367 4.1944 4.171095 4.147155 4.122611 4.097495 4.0718365 4.0456657 4.019011 3.991901 3.9643629 3.9364238 3.9081097 3.879446 3.850457 3.821167 3.791599 3.7617757 3.731719 3.7014496 3.6709886 3.6403553 3.609569 3.5786483 3.547611 3.5164742 3.485255 3.4539688 3.4226315 3.391258 3.359862 3.328458 3.2970588 3.265677 3.234325 3.2030144 3.1717563 3.1405613 3.1094398 3.0784016 3.047456 3.0166118 2.9858778 2.9552615 2.9247713 2.894414 2.8641968 2.8341262 2.8042088 2.77445 2.7448559 2.7154312 2.6861815 2.6571112 2.6282246 2.599526 2.5710194 2.5427082 2.5145957 2.4866853 2.4589798 2.431482 2.4041944 2.3771188 2.350258 2.3236134 2.297187 2.2709801 2.2449944 2.219231 2.1936905 2.1683745 2.1432834 2.118418 2.0937786 2.069366 2.04518 2.0212212 1.9974891 1.9739841 1.950706 1.9276544 1.9048291 1.8822296 1.8598554 1.8377059 1.8157804 1.7940784 1.7725989 1.751341 1.730304 1.7094867 1.6888883 1.6685076 1.6483434 1.6283947 1.6086603 1.5891387 1.5698289 1.5507294 1.5318389 1.5131559 1.4946792 1.4764073 1.4583386 1.4404716 1.4228051 1.4053372 1.3880665 1.3709915 1.3541106 1.337422 1.3209244 1.304616 1.2884952 1.2725604 1.25681 1.2412422 1.2258555 1.2106482 1.1956186 1.1807652 1.1660861 1.1515797 1.1372445 1.1230787 1.1090806 1.0952487 1.0815812 1.0680766 1.054733 1.0415491 1.0285231 1.0156533 1.0029382 0.990376 0.97796535 0.96570444 0.9535918 0.94162583 0.9298049 0.91812754 0.9065921 0.89519703 0.8839408 0.872822 0.861839 0.8509903 0.8402744 0.82968986 0.8192352 0.80890894 0.79870963 0.78863585 0.7786861 0.7688591 0.7591533 0.74956745 0.7401 0.7307497 0.72151524 0.7123952 0.7033882 0.694493 0.6857083 0.6770327 0.668465 0.66000396 0.6516483 0.64339674 0.635248 0.62720096 0.6192544 0.61140704 0.6036578 0.59600544 0.58844876 0.5809867 0.5736181 0.5663418 0.5591567 0.55206174 0.54505575 0.5381377 0.5313065 0.52456117 0.5179006 0.51132375 0.5048296 0.49841717 0.49208546 0.48583344 0.47966018 0.4735647 0.46754605 0.46160325 0.45573545 0.44994164 0.44422093 0.43857244 0.43299526 0.4274885 0.42205134 0.41668287 0.41138226 0.40614864 0.40098122 0.39587915 0.3908416 0.38586783 0.380957 0.37610835 0.37132108 0.36659443 0.36192766 0.35732 0.35277075 0.34827915 0.34384447 0.33946604 0.3351431 0.33087498 0.32666102 0.32250053 0.3183928 0.31433722 0.3103331 0.30637982 0.3024767 0.29862317 0.29481855 0.29106227 0.2873537 0.2836922 0.28007725 0.27650824 0.27298456 0.26950568 0.26607102 0.26268002 0.25933212 0.25602677 0.25276348 0.24954167 0.24636082 0.24322045 0.24012001 0.23705901 0.23403697 0.23105335 0.22810772 0.22519955 0.2223284 0.21949379 0.21669525 0.21393234 0.21120459 0.20851156 0.20585282 0.20322794 0.20063646 0.19807799 0.1955521 0.19305837 0.19059639 0.18816578 0.18576612 0.18339702 0.18105811 0.17874898 0.17646927 0.1742186 0.17199661 0.16980292 0.16763718 0.16549905 0.16338815 0.16130415 0.1592467 0.15721548 0.15521014 0.15323035 0.1512758 0.14934616 0.1474411 0.14556034 0.14370355 0.14187042 0.14006066 0.13827397 0.13651006 0.13476864 0.13304941 0.1313521 0.12967643 0.12802213 0.1263889 0.12477652 0.12318469 0.12161315 0.12006166 0.118529946 0.11701776 0.11552486 0.114051 0.11259592 0.111159414 0.10974122 0.10834111 0.10695886 0.10559423 0.10424701 0.10291697 0.10160389 0.10030756 0.09902776 0.09776428 0.09651693 0.095285475 0.094069734 0.0928695 0.091684565 0.09051476 0.089359865 0.0882197 0.08709408 0.08598282 0.08488574 0.08380265 0.08273337 0.08167774 0.08063557 0.0796067 0.07859095 0.077588156 0.07659816 0.075620785 0.07465589 0.0737033 0.072762854 0.071834415 0.070917815 0.07001291 0.06911956 0.068237595 0.06736688 0.06650728 0.065658644 0.06482084 0.06399372 0.06317715 0.062371004 0.06157514 0.060789432 0.060013745 0.059247956 0.058491938 0.057745565 0.057008717 0.05628127 0.0555631 0.0548541 0.05415414 0.053463113 0.052780904 0.052107397 0.051442485 0.050786056 0.050138

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.378" PeakHeight="110.0" Num="3" Error="0.0">
-19.584 2.796 -0.182
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.378" EndFrequency="4.475" PeakHeight="276.353" Num="5" zHalfNm="244.769" Error="2.221">
-80.214 10.129 -6.483 3.343 -1.159
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="9" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6460.021" EndDistance="6480.001" A="-6.2724571E11" B="1.93594352E8" C="-14937.693" Error="0.00256"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6510.656" A="-1.94875884E11" B="6.014688E7" C="-4640.82" Error="0.00207"/>
<QuasiParabolic ID="2" StartDistance="6510.656" EndDistance="6541.313" A="0.0" B="1072.3666" C="-0.12471935" Error="0.0195"/>
<QuasiParabolic ID="3" StartDistance="6541.313" EndDistance="6543.0" A="-3.89178589E12" B="1.18954803E9" C="-90898.11" Error="0.0579"/>
<QuasiParabolic ID="4" StartDistance="6543.0" EndDistance="6572.0" A="1.43724085E11" B="-4.3987012E7" C="3365.6177" Error="0.0775"/>
<QuasiParabolic ID="5" StartDistance="6572.0" EndDistance="6579.0" A="5.5857308E12" B="-1.70010586E9" C="129363.7" Error="0.0541"/>
<QuasiParabolic ID="6" StartDistance="6579.0" EndDistance="6597.0" A="7.0175084E12" B="-2.13536282E9" C="162442.97" Error="0.0726"/>
<QuasiParabolic ID="7" StartDistance="6597.0" EndDistance="6614.0" A="2.65883809E13" B="-8.0686269E9" C="612137.1" Error="0.0172"/>
<QuasiParabolic ID="8" StartDistance="6614.0" EndDistance="6646.353" A="-1.94275715E13" B="5.8460851E9" C="-439776.44" Error="0.00521"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="91.969" Depth="0.178"/>
<TopsideChapman PeakHeight="276.353" PeakDensity="248456.89" PeakScaleHeight="24.332" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
