<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-28 -301 07:25:00.000"
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 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" >
2026.10.28 (301) 07:25:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.32" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-16.06" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="62.486557" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202630110280725001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.600" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.305" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.899" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.325" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.325" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.975" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="247.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="247.500" 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="0.225" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.400" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="322.716" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.365" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.325" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.325" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="278.715" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="244.398" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="4.260" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="48.803" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.765" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="26.296" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="43.010" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.270" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="52">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 3.4 3.425 3.45 3.475 3.5 3.525 3.55 3.575 3.6
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
247.500 248.333 249.167 250.000 250.833 251.667 252.500 255.000 255.000 257.500 257.500 259.000 260.500 262.000 263.500 265.000 265.000 267.500 267.500 270.000 270.000 272.500 274.375 276.250 278.125 280.000 281.875 283.750 285.625 287.500 289.375 291.250 293.125 295.000 297.500 300.000 302.500 307.500 308.750 310.924 313.354 316.086 319.180 322.716 326.793 331.546 337.159 343.889 352.105 362.361 375.525 393.037
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
42 0 0 0 0 0 54 54 57 54 45 0 0 0 0 54 57 60 48 51 36 36 0 0 0 0 0 0 0 0 0 0 0 69 69 63 93 87 0 81 69 63 69 72 66 0 66 72 72 60 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 -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 -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="592">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.265 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 140.92967 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 171.85933 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 202.789 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 278.715 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0 600.0 601.0 602.0 603.0 604.0 605.0 606.0 607.0 608.0 609.0 610.0 611.0 612.0 613.0 614.0 615.0 616.0 617.0 618.0 619.0 620.0 621.0 622.0 623.0 624.0 625.0 626.0 627.0 628.0 629.0 630.0 631.0 632.0 633.0 634.0 635.0 636.0 637.0 638.0 639.0 640.0 641.0 642.0 643.0 644.0 645.0 646.0 647.0 648.0 649.0 650.0 651.0 652.0 653.0 654.0 655.0 656.0 657.0 658.0 659.0 660.0 661.0 662.0 663.0 664.0 665.0 666.0 667.0 668.0 669.0 670.0 671.0 672.0 673.0 674.0 675.0 676.0 677.0 678.0 679.0 680.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.21883744 0.24127388 0.26060042 0.27737802 0.2920316 0.30487368 0.31613266 0.3259813 0.33454284 0.34192103 0.34818944 0.35340887 0.35762396 0.360869 0.3631695 0.36454326 0.365 0.36487916 0.36443636 0.36383417 0.3629142 0.36168122 0.36022073 0.35853872 0.3564873 0.3542332 0.35163504 0.34878448 0.34562427 0.34217566 0.33832276 0.33423656 0.3297467 0.32496357 0.31974658 0.3141627 0.30817026 0.30175292 0.29484686 0.28748325 0.27949527 0.27099457 0.26180825 0.2518791 0.24116383 0.22954631 0.21693718 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 0.20075041 0.2060851 0.21141978 0.21675447 0.22208914 0.22742383 0.23275852 0.2380932 0.24342789 0.24876256 0.25409725 0.25943193 0.26476663 0.2701013 0.27543598 0.28077066 0.28610536 0.29144004 0.29677472 0.30210942 0.3074441 0.31277877 0.31811348 0.32344815 0.32878283 0.3341175 0.3394522 0.34478688 0.35012156 0.35545626 0.36079094 0.365 0.37273753 0.40566954 0.43536535 0.46358997 0.49113813 0.5184621 0.5458574 0.57354516 0.6016977 0.6304633 0.65998375 0.6903771 0.72177714 0.7542931 0.78806454 0.8232159 0.8598875 0.8982332 0.9384076 0.9805636 1.0248997 1.0715797 1.1208085 1.1727673 1.2276648 1.2856737 1.3469431 1.4116013 1.4796966 1.5511973 1.625961 1.7037195 1.7840718 1.8664364 1.9501837 2.0345676 2.1188395 2.2022815 2.2842643 2.3642292 2.4417853 2.5166125 2.5885231 2.6573894 2.7231634 2.7858593 2.8455138 2.9022014 2.9560037 3.0069938 3.055295 3.100992 3.14418 3.1849518 3.2234066 3.2596142 3.2936654 3.3256235 3.3555622 3.3835435 3.409623 3.4338615 3.456297 3.476983 3.495957 3.5132518 3.5289056 3.5429451 3.5553946 3.5662818 3.5756211 3.5834315 3.5897264 3.5945184 3.5978138 3.5996203 3.6 3.599959 3.599169 3.5973938 3.5946574 3.590985 3.5864012 3.5809312 3.5745997 3.567432 3.5594525 3.5506866 3.541159 3.5308938 3.519916 3.5082495 3.4959185 3.4829466 3.4693575 3.455174 3.4404192 3.4251156 3.4092853 3.3929503 3.376132 3.3588514 3.3411295 3.3229864 3.304442 3.2855158 3.2662268 3.246594 3.2266355 3.206369 3.185812 3.1649814 3.143894 3.1225657 3.1010122 3.0792491 3.057291 3.0351524 3.0128474 2.9903898 2.9677927 2.9450688 2.922231 2.899291 2.8762608 2.8531516 2.8299742 2.8067393 2.7834575 2.760138 2.7367911 2.7134254 2.6900501 2.666674 2.6433048 2.6199508 2.5966196 2.5733185 2.5500548 2.526835 2.5036654 2.480553 2.457503 2.4345217 2.4116142 2.3887858 2.366042 2.343387 2.3208253 2.2983618 2.2760003 2.2537448 2.2315993 2.209567 2.1876514 2.1658556 2.144183 2.1226358 2.1012175 2.0799298 2.058776 2.0377574 2.0168767 1.9961356 1.975536 1.9550797 1.9347682 1.9146029 1.8945851 1.8747163 1.8549973 1.8354292 1.8160131 1.7967496 1.7776395 1.7586834 1.739882 1.7212358 1.7027448 1.6844097 1.6662308 1.6482079 1.6303414 1.6126313 1.5950776 1.5776801 1.5604388 1.5433533 1.5264237 1.5096495 1.4930303 1.4765658 1.4602557 1.4440994 1.4280964 1.4122462 1.3965482 1.3810018 1.3656063 1.3503611 1.3352655 1.3203187 1.3055199 1.2908686 1.2763637 1.2620045 1.2477901 1.2337197 1.2197924 1.2060072 1.1923634 1.17886 1.1654958 1.1522701 1.1391819 1.1262301 1.1134139 1.1007322 1.088184 1.0757682 1.0634838 1.05133 1.0393054 1.0274093 1.0156404 1.0039978 0.9924804 0.9810871 0.9698169 0.9586688 0.9476416 0.9367344 0.925946 0.9152754 0.90472156 0.8942834 0.8839599 0.8737499 0.86365247 0.8536665 0.84379095 0.8340248 0.824367 0.8148165 0.80537224 0.79603326 0.7867985 0.7776669 0.76863754 0.75970936 0.7508814 0.7421525 0.7335218 0.72498834 0.71655107 0.70820904 0.69996125 0.6918068 0.68374467 0.6757739 0.6678936 0.6601028 0.65240055 0.64478594 0.63725805 0.629816 0.6224589 0.61518574 0.6079957 0.60088795 0.5938615 0.58691555 0.5800492 0.5732617 0.56655204 0.5599195 0.55336314 0.5468823 0.54047596 0.53414345 0.5278839 0.52169657 0.5155806 0.5095352 0.50355965 0.4976532 0.491815 0.48604435 0.48034048 0.4747027 0.46913022 0.46362233 0.4581783 0.45279744 0.44747904 0.4422224 0.4370268 0.4318916 0.42681608 0.42179957 0.41684145 0.41194105 0.40709767 0.4023107 0.39757952 0.39290348 0.38828194 0.3837143 0.37919995 0.37473825 0.37032866 0.36597052 0.3616633 0.3574064 0.35319924 0.34904125 0.34493187 0.34087056 0.33685675 0.33288988 0.32896945 0.3250949 0.3212657 0.31748137 0.31374133 0.31004512 0.30639222 0.30278212 0.29921433 0.2956884 0.29220378 0.28876004 0.2853567 0.28199327 0.27866933 0.27538437 0.272138 0.26892972 0.2657591 0.26262572 0.25952914 0.25646895 0.2534447 0.25045598 0.24750237 0.24458349 0.24169889 0.23884822 0.23603106 0.23324703 0.23049572 0.22777678 0.2250898 0.22243445 0.21981034 0.21721709 0.21465434 0.21212177 0.209619 0.20714568 0.20470147 0.20228603 0.19989905 0.19754015 0.19520903 0.19290537 0.19062883 0.1883791 0.18615586 0.18395881 0.18178765 0.17964207 0.17752177 0.17542644 0.1733558 0.17130956 0.16928743 0.16728914 0.16531439 0.16336292 0.16143446 0.15952872 0.15764545 0.15578438 0.15394525 0.1521278 0.1503318 0.14855695 0.14680304 0.14506981 0.14335702 0.14166443 0.1399918 0.1383389 0.13670549 0.13509135 0.13349624 0.13191995 0.13036226 0.12882294 0.12730178 0.12579857 0.12431309 0.12284514 0.12139451 0.11996099 0.11854439 0.1171445 0.11576113 0.11439409 0.113043174 0.11170821 0.11038899 0.109085344 0.10779708 0.10652402 0.10526598 0.1040228 0.10279428 0.10158027 0.10038059 0.09919506 0.098023534 0.09686583 0.0957218 0.094591275 0.09347409 0.09237009 0.09127913 0.09020104 0.089135684 0.0880829 0.087042555 0.08601449 0.084998555 0.08399462 0.08300253 0.08202216 0.08105337 0.08009601 0.079149954 0.07821508 0.07729123 0.07637829 0.07547614 0.07458463 0.07370366 0.07283308 0.071972795 0.071122654 0.07028256 0.06945238 0.068632014 0.067821324 0.067020215 0.06622856 0.065446265 0.0646732 0.06390926 0.063154355 0.062408354 0.061671168 0.060942687 0.06022281 0.05951143 0.058808457 0.058113784 0.057427317 0.056748953 0.056078605 0.055416174 0.054761566 0.05411469 0.05347545 0.052843764 0.052219536 0.051602684 0.050993115 0.050390746

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.365" PeakHeight="110.0" Num="3" Error="0.0">
-19.174 2.598 -0.159
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.365" EndFrequency="3.6" PeakHeight="278.715" Num="5" zHalfNm="244.398" Error="1.815">
-82.839 11.501 -7.68 3.194 -0.102
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="8" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6460.0127" EndDistance="6480.001" A="-5.8449061E11" B="1.80398336E8" C="-13919.491" Error="0.00238"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6510.93" A="-1.7346832E11" B="5.3539608E7" C="-4131.0093" Error="0.00165"/>
<QuasiParabolic ID="2" StartDistance="6510.93" EndDistance="6541.859" A="0.0" B="-2408.9727" C="0.40998653" Error="0.0437"/>
<QuasiParabolic ID="3" StartDistance="6541.859" EndDistance="6571.0" A="8.5694923E10" B="-2.6264694E7" C="2012.4999" Error="0.0437"/>
<QuasiParabolic ID="4" StartDistance="6571.0" EndDistance="6573.0" A="5.6621468E12" B="-1.72355635E9" C="131162.69" Error="0.0213"/>
<QuasiParabolic ID="5" StartDistance="6573.0" EndDistance="6591.0" A="2.51552753E12" B="-7.6611866E8" C="58331.574" Error="0.0527"/>
<QuasiParabolic ID="6" StartDistance="6591.0" EndDistance="6613.0" A="1.43486469E13" B="-4.3568087E9" C="330725.0" Error="0.039"/>
<QuasiParabolic ID="7" StartDistance="6613.0" EndDistance="6648.715" A="-1.06374313E13" B="3.19984589E9" C="-240623.45" Error="0.00355"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="92.789" Depth="0.165"/>
<TopsideChapman PeakHeight="278.715" PeakDensity="160794.05" PeakScaleHeight="26.296" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
