<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-03-21 -080 06:15:00.000"
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 22 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 75% PACIFIC flags: Multiple candidates for F2x cusp, Unidentified traces above foF2</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.03.21 (080) 06:15:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.18" 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">
FF202608003210615001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.375" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.624" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.229" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.050" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.050" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.725" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="210.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="210.000" 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="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.125" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="265.258" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.050" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.050" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="242.715" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="208.765" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.528" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="48.019" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.532" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="26.514" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="37.080" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="5.470" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="54">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.05 2.075 2.1 2.125 2.15 2.175 2.2 2.225 2.25 2.275 2.3 2.325 2.35 2.375 2.4 2.425 2.45 2.475 2.5 2.525 2.55 2.575 2.6 2.625 2.65 2.675 2.7 2.725 2.75 2.775 2.8 2.825 2.85 2.875 2.9 2.925 2.95 2.975 3.0 3.025 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
210.000 211.250 212.500 212.500 215.000 215.833 216.667 217.500 217.500 217.500 217.500 217.500 217.500 220.000 220.000 220.000 222.500 222.500 222.500 225.000 225.000 225.000 227.500 227.500 230.000 230.000 232.500 232.500 235.000 235.000 237.500 237.500 240.000 240.000 242.500 245.000 247.500 250.000 252.500 252.500 255.192 258.180 261.514 265.258 269.493 274.323 279.882 286.349 293.966 303.069 314.141 327.897 345.450 368.621
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
81 0 69 78 78 0 0 60 63 63 63 63 63 78 78 81 78 84 81 81 84 81 81 81 78 81 78 81 78 66 63 51 51 72 66 0 63 93 96 96 96 90 90 0 0 0 0 87 84 84 84 84 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="553">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 133.33333 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 156.66667 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 242.715 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0 600.0 601.0 602.0 603.0 604.0 605.0 606.0 607.0 608.0 609.0 610.0 611.0 612.0 613.0 614.0 615.0 616.0 617.0 618.0 619.0 620.0 621.0 622.0 623.0 624.0 625.0 626.0 627.0 628.0 629.0 630.0 631.0 632.0 633.0 634.0 635.0 636.0 637.0 638.0 639.0 640.0 641.0 642.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
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1.1307957 1.2050792 1.2883186 1.3825817 1.4901435 1.6127789 1.7501029 1.8969079 2.043463 2.1803432 2.3028421 2.4105878 2.5051513 2.588558 2.662659 2.7289734 2.7887201 2.842861 2.8921726 2.9372754 2.9786527 3.0167236 3.0518262 3.0842345 3.1141956 3.1418974 3.167521 3.1912017 3.213077 3.2332509 3.2518172 3.2688599 3.2844498 3.2986536 3.3115215 3.3231041 3.3334427 3.3425741 3.3505282 3.3573318 3.363006 3.3675704 3.3710382 3.373421 3.3747258 3.375 3.374962 3.3742337 3.3725963 3.3700724 3.3666844 3.3624554 3.357408 3.3515651 3.3449495 3.337584 3.3294916 3.3206947 3.3112156 3.3010774 3.2903013 3.27891 3.2669249 3.2543676 3.2412593 3.227621 3.2134736 3.198837 3.1837313 3.1681764 3.1521916 3.135796 3.119008 3.1018462 3.0843284 3.066472 3.0482943 3.029812 3.0110416 2.9919991 2.9727 2.95316 2.9333935 2.913415 2.8932388 2.8728788 2.8523479 2.8316593 2.8108258 2.7898593 2.7687721 2.7475753 2.7262805 2.704898 2.6834388 2.661913 2.64033 2.6186998 2.5970314 2.5753336 2.553615 2.531884 2.5101483 2.488416 2.4666939 2.4449897 2.42331 2.4016614 2.3800502 2.3584824 2.3369641 2.3155007 2.2940977 2.2727602 2.251493 2.230301 2.2091885 2.18816 2.1672192 2.1463706 2.1256175 2.1049633 2.0844119 2.063966 2.043629 2.0234034 2.0032923 1.9832978 1.9634228 1.9436692 1.9240392 1.904535 1.8851584 1.8659111 1.8467947 1.8278108 1.8089608 1.7902459 1.7716675 1.7532265 1.734924 1.7167609 1.698738 1.680856 1.6631156 1.6455173 1.6280619 1.6107494 1.5935804 1.576555 1.5596735 1.5429362 1.5263431 1.5098941 1.4935893 1.4774286 1.4614118 1.4455389 1.4298096 1.4142236 1.3987805 1.3834801 1.3683219 1.3533056 1.3384305 1.3236965 1.3091028 1.2946488 1.280334 1.2661577 1.2521195 1.2382185 1.2244542 1.2108256 1.1973321 1.1839732 1.1707478 1.1576551 1.1446946 1.1318651 1.1191661 1.1065966 1.0941557 1.0818425 1.0696564 1.0575961 1.0456609 1.0338498 1.0221621 1.0105966 0.9991526 0.98782897 0.9766249 0.96553934 0.9545713 0.94372 0.93298435 0.9223634 0.9118562 0.9014617 0.89117914 0.8810074 0.87094545 0.8609925 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</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="3.375" PeakHeight="242.715" Num="5" zHalfNm="208.765" Error="1.283">
-76.564 22.609 -13.447 5.586 -0.899
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="13" 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="6503.333" A="-2.72938779E11" B="8.424036E7" C="-6499.9023" Error="0.00135"/>
<QuasiParabolic ID="2" StartDistance="6503.333" EndDistance="6526.667" A="0.0" B="435.48444" C="-0.025320077" Error="0.0051"/>
<QuasiParabolic ID="3" StartDistance="6526.667" EndDistance="6528.0" A="-1.72802271E12" B="5.29323456E8" C="-40535.203" Error="0.00925"/>
<QuasiParabolic ID="4" StartDistance="6528.0" EndDistance="6543.0" A="1.2838291E11" B="-3.9428264E7" C="3027.2769" Error="0.0197"/>
<QuasiParabolic ID="5" StartDistance="6543.0" EndDistance="6548.0" A="-1.20358199E11" B="3.660448E7" C="-2782.9587" Error="0.00361"/>
<QuasiParabolic ID="6" StartDistance="6548.0" EndDistance="6553.0" A="5.7510954E12" B="-1.75675328E9" C="134156.39" Error="0.0157"/>
<QuasiParabolic ID="7" StartDistance="6553.0" EndDistance="6554.0" A="-2.66800333E12" B="8.1278688E8" C="-61901.914" Error="3.44E-11"/>
<QuasiParabolic ID="8" StartDistance="6554.0" EndDistance="6563.0" A="4.19898799E12" B="-1.28272461E9" C="97963.17" Error="0.0131"/>
<QuasiParabolic ID="9" StartDistance="6563.0" EndDistance="6569.0" A="1.53785593E13" B="-4.6895724E9" C="357512.75" Error="0.00689"/>
<QuasiParabolic ID="10" StartDistance="6569.0" EndDistance="6576.0" A="5.7414104E13" B="-1.74877286E10" C="1331645.5" Error="0.0108"/>
<QuasiParabolic ID="11" StartDistance="6576.0" EndDistance="6588.0" A="-3.14501371E13" B="9.5391078E9" C="-723314.7" Error="0.0156"/>
<QuasiParabolic ID="12" StartDistance="6588.0" EndDistance="6612.715" A="-7.5756601E12" B="2.29124045E9" C="-173233.67" Error="0.00902"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="70.0" Depth="0.15"/>
<TopsideChapman PeakHeight="242.715" PeakDensity="141322.89" PeakScaleHeight="26.514" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
