<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-03-17 -076 02:55:00.000"
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: 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" >
2026.03.17 (076) 02:55:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.17" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.97" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="82.25368" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202607603170255001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="6.475" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.334" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="21.585" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="4.475" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="4.475" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="6.775" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="262.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="262.500" 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="6.250" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="331.247" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="4.475" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="4.475" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="283.672" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="259.542" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="4.262" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="34.805" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="4.007" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="18.293" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="33.430" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.360" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="81">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 5.025 5.05 5.075 5.1 5.125 5.15 5.175 5.2 5.225 5.25 5.275 5.3 5.325 5.35 5.375 5.4 5.425 5.45 5.475 5.5 5.525 5.55 5.575 5.6 5.625 5.65 5.675 5.7 5.725 5.75 5.775 5.8 5.825 5.85 5.875 5.9 5.925 5.95 5.975 6.0 6.025 6.05 6.075 6.1 6.125 6.15 6.175 6.2 6.225 6.25 6.275 6.3 6.325 6.35 6.375 6.4 6.425 6.45 6.475
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
262.500 262.500 262.500 262.500 263.333 264.167 265.000 262.500 263.750 265.000 265.000 265.000 265.000 266.667 268.333 270.000 267.500 272.500 270.000 270.000 270.000 270.000 272.500 272.500 272.500 272.500 275.000 275.000 275.000 277.500 277.500 277.500 277.500 277.500 277.500 280.000 280.000 280.000 282.500 282.500 285.000 287.500 287.500 287.500 290.000 290.000 290.000 292.500 292.500 292.500 295.000 297.500 297.500 297.500 300.000 302.500 305.000 305.000 305.000 307.500 310.000 312.500 312.500 315.000 317.500 322.500 325.000 325.000 326.254 327.685 329.331 331.247 333.503 336.199 339.479 343.554 348.754 355.620 365.102 379.052 401.598
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
54 57 0 57 0 0 60 60 0 87 75 69 78 0 0 78 60 57 93 0 84 87 81 84 57 54 96 99 99 96 84 93 93 87 102 102 57 54 99 99 90 87 60 54 57 60 66 63 54 63 96 93 93 93 96 102 81 84 99 99 102 99 96 96 96 90 63 63 57 51 93 93 96 90 96 96 93 96 90 84 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 -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 -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 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 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="509">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 145.58333 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 181.16667 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 216.75 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 283.672 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0
</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 0.35250106 0.35164472 0.35064512 0.34935787 0.34793577 0.3463105 0.34448874 0.34247804 0.3402866 0.3378549 0.33519608 0.33232448 0.32919082 0.32587904 0.32228336 0.31849188 0.31441292 0.31008333 0.3054338 0.30051735 0.2952657 0.28973025 0.2838154 0.27755383 0.2709269 0.2638273 0.2562852 0.24823268 0.23961297 0.23044473 0.2206037 0.2100604 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 0.20360656 0.20793442 0.21226229 0.21659017 0.22091803 0.22524591 0.22957377 0.23390163 0.23822951 0.24255738 0.24688524 0.2512131 0.255541 0.25986886 0.26419672 0.2685246 0.27285245 0.2771803 0.2815082 0.28583607 0.29016393 0.2944918 0.29881966 0.30314755 0.30747542 0.31180328 0.31613114 0.320459 0.32478687 0.32911476 0.33344263 0.3377705 0.34209836 0.34642622 0.3507541 0.354 0.362295 0.39671838 0.43311006 0.47148496 0.51187193 0.55433583 0.5989367 0.64576805 0.69492793 0.74653417 0.80070615 0.85756946 0.9172915 0.9800252 1.0459182 1.1151527 1.1879003 1.2643396 1.3446828 1.4290909 1.5177692 1.6108837 1.708595 1.8110892 1.9184781 2.0308337 2.1482513 2.27072 2.3981905 2.5305207 2.6675386 2.8089473 2.9543622 3.1033297 3.2553315 3.4097416 3.5658903 3.7230291 3.8804562 4.0373893 4.1930876 4.3468494 4.4979787 4.6458874 4.7899866 4.929779 5.064835 5.1947784 5.3192725 5.4380445 5.5508604 5.6575785 5.75801 5.8520756 5.9396553 6.020705 6.095155 6.162991 6.2241683 6.278693 6.3265476 6.36772 6.4022207 6.430046 6.4511976 6.4656806 6.473495 6.475 6.4747972 6.4717183 6.465033 6.454874 6.4413743 6.4246674 6.4048867 6.382165 6.3566346 6.3284264 6.2976704 6.2644935 6.2290215 6.1913786 6.1516857 6.11006 6.066619 6.021474 5.9747357 5.92651 5.876901 5.8260093 5.773931 5.7207613 5.6665907 5.611506 5.555591 5.498928 5.4415946 5.383664 5.3252096 5.266299 5.2069974 5.147368 5.0874705 5.0273614 4.967096 4.9067245 4.8462963 4.7858586 4.725455 4.665127 4.6049137 4.5448537 4.4849806 4.4253287 4.365928 4.3068085 4.2479973 4.1895204 4.131401 4.073662 4.016324 3.9594061 3.9029267 3.846902 3.7913473 3.7362764 3.6817024 3.627637 3.5740905 3.5210729 3.4685924 3.4166572 3.365274 3.3144484 3.2641861 3.2144914 3.165368 3.1168194 3.0688474 3.0214543 2.9746413 2.928409 2.8827581 2.8376882 2.7931983 2.7492878 2.7059553 2.6631987 2.6210158 2.5794044 2.5383613 2.497884 2.4579687 2.4186122 2.3798106 2.34156 2.3038561 2.2666945 2.2300708 2.1939805 2.1584184 2.1233802 2.0888603 2.0548537 2.0213554 1.98836 1.9558622 1.9238564 1.8923373 1.8612994 1.8307369 1.8006445 1.7710164 1.741847 1.7131307 1.6848619 1.6570348 1.6296437 1.6026832 1.5761474 1.5500308 1.5243278 1.4990329 1.4741403 1.4496446 1.4255403 1.4018221 1.3784842 1.3555216 1.3329287 1.3107002 1.2888309 1.2673155 1.246149 1.2253261 1.2048416 1.1846908 1.1648685 1.1453698 1.1261898 1.1073238 1.0887668 1.0705143 1.0525615 1.034904 1.0175369 1.000456 0.98365664 0.9671346 0.9508855 0.934905 0.9191889 0.90373313 0.8885334 0.8735858 0.8588863 0.8444309 0.8302158 0.81623703 0.80249095 0.7889737 0.7756816 0.76261115 0.74975866 0.7371206 0.72469366 0.7124742 0.700459 0.68864465 0.67702794 0.6656056 0.6543745 0.64333147 0.63247347 0.62179744 0.6113004 0.60097945 0.59083164 0.5808541 0.57104415 0.56139886 0.55191565 0.54259175 0.53342456 0.5244115 0.51554996 0.5068375 0.4982716 0.4898499 0.4815699 0.4734293 0.4654258 0.45755705 0.44982088 0.44221506 0.43473738 0.42738575 0.42015803 0.41305217 0.40606615 0.39919794 0.39244556 0.38580713 0.37928066 0.37286434 0.3665563 0.36035472 0.35425785 0.3482639 0.34237114 0.3365779 0.3308825 0.32528326 0.31977862 0.31436697 0.30904675 0.3038164 0.29867446 0.2936194 0.28864974 0.2837641 0.27896103 0.27423915 0.26959708 0.2650335 0.26054707 0.2561365 0.2518005 0.24753785 0.24334726 0.23922755 0.2351775 0.23119597 0.22728178 0.2234338 0.2196509 0.215932 0.21227601 0.20868187 0.20514855 0.201675 0.19826023 0.19490324 0.19160305 0.18835871 0.18516926 0.18203379 0.1789514 0.17592116 0.17294219 0.17001367 0.16713469 0.16430445 0.1615221 0.15878686 0.15609792 0.1534545 0.15085581 0.14830112 0.14578968 0.14332075 0.14089362 0.13850757 0.13616192 0.13385598 0.13158908 0.12936057 0.12716977 0.12501608 0.12289885 0.12081747 0.11877132 0.11675982 0.11478238 0.11283842 0.11092737 0.109048694 0.10720182 0.10538622 0.10360136 0.101846725 0.1001218 0.098426096 0.096759096 0.095120326 0.09350931 0.09192557 0.09036865 0.0888381 0.08733346 0.085854314 0.08440021 0.08297073 0.081565455 0.08018398 0.078825906 0.07749083 0.07617836 0.07488812 0.07361973 0.07237282 0.071147025 0.069942 0.06875737 0.06759281 0.066447966 0.06532252 0.06421613 0.06312848 0.06205925 0.061008126 0.05997481 0.05895899 0.057960372 0.056978673 0.056013595 0.05506487 0.054132205 0.05321534 0.052314002 0.05142793 0.05055687

</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="6.475" PeakHeight="283.672" Num="5" zHalfNm="259.542" Error="1.474">
-68.306 2.76 -2.483 1.347 -0.24
</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="6515.583" A="-1.20064901E11" B="3.7057068E7" C="-2859.2163" Error="0.00171"/>
<QuasiParabolic ID="2" StartDistance="6515.583" EndDistance="6551.167" A="0.0" B="712.8668" C="-0.06937301" Error="0.0139"/>
<QuasiParabolic ID="3" StartDistance="6551.167" EndDistance="6586.0" A="2.81260319E10" B="-8667012.0" C="667.665" Error="0.0139"/>
<QuasiParabolic ID="4" StartDistance="6586.0" EndDistance="6588.0" A="1.32921373E13" B="-4.03660851E9" C="306463.4" Error="0.0108"/>
<QuasiParabolic ID="5" StartDistance="6588.0" EndDistance="6591.0" A="2.51040445E12" B="-7.6346554E8" C="58046.36" Error="0.00917"/>
<QuasiParabolic ID="6" StartDistance="6591.0" EndDistance="6600.0" A="8.1768344E12" B="-2.48291021E9" C="188485.19" Error="0.0172"/>
<QuasiParabolic ID="7" StartDistance="6600.0" EndDistance="6608.0" A="2.03209583E13" B="-6.1629481E9" C="467275.94" Error="0.00327"/>
<QuasiParabolic ID="8" StartDistance="6608.0" EndDistance="6632.0" A="4.9022702E13" B="-1.48499159E10" C="1124582.9" Error="0.0195"/>
<QuasiParabolic ID="9" StartDistance="6632.0" EndDistance="6645.0" A="-5.6973614E13" B="1.71151964E10" C="-1285332.1" Error="0.0064"/>
<QuasiParabolic ID="10" StartDistance="6645.0" EndDistance="6653.672" A="-8.3148914E13" B="2.49933926E10" C="-1878123.4" Error="3.46E-4"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="106.75" Depth="0.154"/>
<TopsideChapman PeakHeight="283.672" PeakDensity="520169.03" PeakScaleHeight="18.293" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
