<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-03-24 -083 01:55:00.000"
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" >
2026.03.24 (083) 01:55:00</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">
FF202608303240155001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.750" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.298" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="15.663" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.825" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.825" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="5.150" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="275.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="275.000" 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="4.375" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="310.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.825" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.825" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="298.901" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="266.285" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="4.884" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="46.588" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="2.936" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="25.167" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="41.760" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.170" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="38">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 4.5 4.525 4.55 4.575 4.6 4.625 4.65 4.675 4.7 4.725 4.75
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
275.000 276.250 277.500 277.500 277.500 277.500 280.000 282.500 285.000 286.667 288.333 290.000 290.000 292.500 292.500 295.000 295.000 297.500 302.500 302.500 305.000 307.500 310.000 315.000 317.500 322.500 325.000 330.000 337.500 345.000 352.500 360.000 368.750 377.500 392.754 412.445 438.841 476.067
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
96 0 84 0 96 93 0 0 57 0 0 96 90 90 93 96 96 96 96 93 93 90 93 96 72 72 72 69 69 63 81 81 0 57 84 0 0 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 -7.8125 1.5625 1.5625 -1.5625 10.9375 -1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="617">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 146.58 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 183.16 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 219.74 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 298.901 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0 600.0 601.0 602.0 603.0 604.0 605.0 606.0 607.0 608.0 609.0 610.0 611.0 612.0 613.0 614.0 615.0 616.0 617.0 618.0 619.0 620.0 621.0 622.0 623.0 624.0 625.0 626.0 627.0 628.0 629.0 630.0 631.0 632.0 633.0 634.0 635.0 636.0 637.0 638.0 639.0 640.0 641.0 642.0 643.0 644.0 645.0 646.0 647.0 648.0 649.0 650.0 651.0 652.0 653.0 654.0 655.0 656.0 657.0 658.0 659.0 660.0 661.0 662.0 663.0 664.0 665.0 666.0 667.0 668.0 669.0 670.0 671.0 672.0 673.0 674.0 675.0 676.0 677.0 678.0 679.0 680.0 681.0 682.0 683.0 684.0 685.0 686.0 687.0 688.0 689.0 690.0 691.0 692.0 693.0 694.0 695.0 696.0 697.0 698.0 699.0 700.0 701.0 702.0 703.0 704.0 705.0
</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 0.35321164 0.35257575 0.35179353 0.3507929 0.34965166 0.34829983 0.346743 0.34505916 0.34311134 0.3410499 0.3387427 0.33620226 0.3335088 0.33060786 0.32745108 0.32405943 0.32051575 0.31666136 0.31258845 0.30821797 0.30364722 0.29876345 0.29355523 0.2880278 0.2822252 0.27600208 0.26943356 0.26248342 0.2550696 0.247191 0.23875745 0.22978722 0.22015874 0.2098825 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 0.20353636 0.20774631 0.21195626 0.21616621 0.22037616 0.22458611 0.22879606 0.23300602 0.23721597 0.24142592 0.24563587 0.24984582 0.25405577 0.25826573 0.26247567 0.26668563 0.27089557 0.27510554 0.27931547 0.28352544 0.28773537 0.29194534 0.29615527 0.30036524 0.30457518 0.30878514 0.31299508 0.31720504 0.32141498 0.32562494 0.32983488 0.33404484 0.33825478 0.34246475 0.34667468 0.35088465 0.354 0.35868704 0.37810627 0.39989534 0.42423093 0.4511779 0.48069555 0.5126326 0.5467392 0.58274394 0.6203876 0.6594477 0.699769 0.74123794 0.7838191 0.82748365 0.8722685 0.9182136 0.96538305 1.0138702 1.063753 1.1151563 1.1681931 1.2229974 1.2797079 1.3384719 1.3994553 1.4628378 1.5287957 1.597522 1.6691955 1.7440109 1.8221581 1.9038134 1.9891087 2.0781248 2.1709163 2.267392 2.3673995 2.470613 2.576555 2.684587 2.793978 2.9038134 3.0131996 3.121246 3.2270942 3.3300374 3.4295208 3.5251074 3.6165032 3.7035704 3.7862487 3.8645418 3.9385145 4.008289 4.07401 4.1357956 4.1938176 4.2482343 4.299172 4.346796 4.3912287 4.4326043 4.471039 4.506641 4.5395083 4.5697317 4.597398 4.6225786 4.6453385 4.665742 4.6838417 4.6996827 4.713306 4.724744 4.7340283 4.74118 4.746216 4.7491508 4.75 4.749993 4.7491236 4.7468295 4.7431483 4.7381167 4.7317724 4.724153 4.715296 4.7052383 4.6940184 4.6816735 4.6682405 4.653757 4.638259 4.621783 4.6043644 4.5860395 4.5668435 4.5468106 4.525975 4.5043707 4.4820304 4.4589863 4.4352703 4.4109144 4.3859487 4.360403 4.334307 4.3076897 4.2805786 4.253001 4.2249846 4.1965547 4.167737 4.138556 4.1090364 4.0792007 4.0490723 4.018673 3.9880247 3.9571478 3.9260626 3.894789 3.8633454 3.8317506 3.8000224 3.7681775 3.7362328 3.704204 3.6721072 3.6399567 3.6077669 3.575552 3.543325 3.5110989 3.478886 3.446698 3.4145463 3.382442 3.3503952 3.3184164 3.286515 3.2547002 3.2229805 3.1913648 3.1598608 3.1284761 3.0972183 3.0660942 3.0351102 3.004273 2.973588 2.9430614 2.912698 2.8825033 2.8524818 2.8226383 2.7929769 2.7635016 2.734216 2.705124 2.6762283 2.6475325 2.6190393 2.5907512 2.5626707 2.5348 2.5071416 2.4796968 2.4524677 2.4254558 2.3986626 2.372089 2.3457363 2.3196056 2.2936976 2.2680132 2.2425525 2.2173166 2.1923053 2.1675193 2.1429584 2.1186228 2.0945122 2.070627 2.0469663 2.0235302 2.000318 1.9773296 1.9545642 1.9320213 1.9097 1.8875998 1.8657198 1.8440591 1.8226169 1.8013921 1.7803838 1.7595909 1.7390121 1.7186466 1.6984931 1.6785502 1.6588169 1.6392919 1.6199737 1.600861 1.5819526 1.563247 1.5447427 1.5264385 1.5083327 1.4904239 1.4727108 1.4551917 1.4378651 1.4207295 1.4037834 1.3870252 1.3704535 1.3540665 1.3378626 1.3218405 1.3059984 1.2903348 1.2748481 1.2595367 1.244399 1.2294334 1.2146384 1.2000121 1.1855533 1.1712602 1.1571312 1.1431649 1.1293595 1.1157135 1.1022253 1.0888935 1.0757164 1.0626923 1.04982 1.0370976 1.0245239 1.0120971 0.9998158 0.9876785 0.9756837 0.9638298 0.9521155 0.9405392 0.92909944 0.91779476 0.9066238 0.895585 0.884677 0.8738983 0.8632477 0.8527236 0.8423247 0.8320496 0.821897 0.8118654 0.8019536 0.7921602 0.78248394 0.77292347 0.7634775 0.7541447 0.74492383 0.7358137 0.7268129 0.71792036 0.7091347 0.7004548 0.6918794 0.68340737 0.67503744 0.6667685 0.6585994 0.6505289 0.64255595 0.6346794 0.6268981 0.61921096 0.6116169 0.60411483 0.5967037 0.5893824 0.5821499 0.57500523 0.56794727 0.560975 0.55408746 0.54728365 0.54056257 0.5339232 0.5273646 0.5208859 0.5144861 0.50816417 0.5019193 0.49575058 0.489657 0.4836378 0.477692 0.47181875 0.4660172 0.46028647 0.45462573 0.44903415 0.4435109 0.43805513 0.43266606 0.4273429 0.4220848 0.41689107 0.41176087 0.40669343 0.40168804 0.39674392 0.39186037 0.38703662 0.38227195 0.37756568 0.37291706 0.3683254 0.36379007 0.35931033 0.35488552 0.35051498 0.34619805 0.34193408 0.33772242 0.33356246 0.32945356 0.32539508 0.32138643 0.317427 0.3135162 0.3096534 0.30583808 0.3020696 0.2983474 0.294671 0.29103974 0.2874531 0.28391054 0.2804115 0.27695552 0.27354202 0.27017048 0.2668404 0.26355127 0.2603026 0.25709388 0.25392464 0.25079435 0.24770261 0.24464889 0.24163276 0.23865372 0.23571135 0.2328052 0.22993481 0.22709976 0.2242996 0.22153391 0.21880227 0.21610425 0.21343946 0.21080749 0.2082079 0.20564035 0.2031044 0.2005997 0.19812584 0.19568245 0.19326915 0.19088559 0.18853137 0.18620618 0.18390961 0.18164134 0.17940103 0.1771883 0.17500284 0.17284432 0.1707124 0.16860674 0.16652703 0.16447295 0.16244419 0.16044043 0.15846136 0.1565067 0.15457612 0.15266934 0.15078606 0.14892599 0.14708886 0.14527437 0.14348225 0.14171222 0.13996401 0.13823736 0.136532 0.13484766 0.13318408 0.13154101 0.12991822 0.12831542 0.1267324 0.12516887 0.123624645 0.12209946 0.12059307 0.119105265 0.11763581 0.11618447 0.11475103 0.113335274 0.11193697 0.11055591 0.10919189 0.10784469 0.1065141 0.105199926 0.10390196 0.102620006 0.101353854 0.100103326 0.09886822 0.09764835 0.09644353 0.095253564 0.09407828 0.092917494 0.09177102 0.0906387 0.089520335 0.08841577 0.08732483 0.08624735 0.08518316 0.0841321 0.083094 0.08206871 0.08105607 0.08005592 0.07906811 0.078092486 0.077128895 0.076177195 0.07523724 0.07430887 0.07339196 0.072486356 0.07159193 0.07070854 0.06983604 0.068974316 0.06812322 0.067282625 0.0664524 0.06563241 0.06482255 0.064022675 0.06323267 0.062452406 0.061681774 0.060920652 0.06016892 0.05942646 0.05869316 0.05796891 0.057253595 0.05654711 0.055849336 0.055160176 0.054479517 0.053807255 0.05314329 0.052487515 0.051839832 0.051200144 0.050568346

</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="4.75" PeakHeight="298.901" Num="5" zHalfNm="266.285" Error="3.68">
-84.831 10.654 -7.613 4.052 -1.423
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="10" 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="6516.58" A="-1.13642594E11" B="3.5074876E7" C="-2706.2693" Error="0.00175"/>
<QuasiParabolic ID="2" StartDistance="6516.58" EndDistance="6553.16" A="0.0" B="-1189.5518" C="0.22257994" Error="0.0264"/>
<QuasiParabolic ID="3" StartDistance="6553.16" EndDistance="6589.0" A="4.5435199E10" B="-1.3927802E7" C="1067.385" Error="0.0264"/>
<QuasiParabolic ID="4" StartDistance="6589.0" EndDistance="6592.0" A="5.3667661E12" B="-1.62914432E9" C="123636.555" Error="0.0152"/>
<QuasiParabolic ID="5" StartDistance="6592.0" EndDistance="6599.0" A="3.36259318E12" B="-1.02108218E9" C="77515.336" Error="0.0174"/>
<QuasiParabolic ID="6" StartDistance="6599.0" EndDistance="6605.0" A="5.1778426E12" B="-1.57124122E9" C="119200.36" Error="0.00757"/>
<QuasiParabolic ID="7" StartDistance="6605.0" EndDistance="6618.0" A="9.0990235E12" B="-2.75857818E9" C="209082.05" Error="0.026"/>
<QuasiParabolic ID="8" StartDistance="6618.0" EndDistance="6635.0" A="2.96077891E13" B="-8.9564529E9" C="677340.94" Error="0.0056"/>
<QuasiParabolic ID="9" StartDistance="6635.0" EndDistance="6668.901" A="-2.07028413E13" B="6.2087716E9" C="-465479.28" Error="0.0049"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="109.74" Depth="0.154"/>
<TopsideChapman PeakHeight="298.901" PeakDensity="279931.75" PeakScaleHeight="25.167" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
