<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-12 -132 00:30:00.000"
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" >
2026.05.12 (132) 00:30:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.21" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.99" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="75.82641" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202613205120030001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.825" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.267" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.496" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.950" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.950" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.175" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="277.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="277.500" 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="0.200" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.650" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="335.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.950" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.950" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="296.183" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="262.652" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.762" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="47.826" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.969" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="25.988" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="42.090" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.370" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="36">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 3.625 3.65 3.675 3.7 3.725 3.75 3.775 3.8 3.825
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
277.500 277.500 277.500 277.500 280.000 280.000 282.500 282.500 285.000 290.000 290.000 292.500 287.500 290.000 295.000 297.500 300.000 300.000 305.000 305.000 310.000 312.500 315.000 317.500 322.500 330.000 332.500 335.000 335.000 340.000 349.448 361.580 377.733 400.298 434.042 490.006
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
54 60 60 81 75 90 93 96 96 90 90 87 84 87 96 105 102 99 108 111 102 78 78 81 78 75 75 75 75 78 78 0 0 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 -1.5625 -1.5625 -1.5625 -1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="610">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 146.24667 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 182.49333 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 218.74 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 296.183 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0 600.0 601.0 602.0 603.0 604.0 605.0 606.0 607.0 608.0 609.0 610.0 611.0 612.0 613.0 614.0 615.0 616.0 617.0 618.0 619.0 620.0 621.0 622.0 623.0 624.0 625.0 626.0 627.0 628.0 629.0 630.0 631.0 632.0 633.0 634.0 635.0 636.0 637.0 638.0 639.0 640.0 641.0 642.0 643.0 644.0 645.0 646.0 647.0 648.0 649.0 650.0 651.0 652.0 653.0 654.0 655.0 656.0 657.0 658.0 659.0 660.0 661.0 662.0 663.0 664.0 665.0 666.0 667.0 668.0 669.0 670.0 671.0 672.0 673.0 674.0 675.0 676.0 677.0 678.0 679.0 680.0 681.0 682.0 683.0 684.0 685.0 686.0 687.0 688.0 689.0 690.0 691.0 692.0 693.0 694.0 695.0 696.0 697.0 698.0
</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 0.35171902 0.35071892 0.34957823 0.348154 0.34659868 0.34484494 0.3429 0.34077185 0.33840045 0.33586627 0.3331131 0.33015576 0.32694635 0.32350618 0.31985766 0.31590727 0.31174752 0.3073551 0.30261114 0.29762587 0.29233465 0.28669897 0.28072995 0.27438352 0.26766428 0.2604948 0.25284433 0.24476802 0.23606798 0.22680444 0.21688364 0.2062984 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 0.20215265 0.20640132 0.21065 0.21489866 0.21914732 0.22339599 0.22764465 0.23189333 0.236142 0.24039066 0.24463932 0.24888799 0.25313666 0.2573853 0.261634 0.26588264 0.27013132 0.27438 0.27862865 0.28287733 0.28712597 0.29137465 0.29562333 0.29987198 0.30412066 0.3083693 0.312618 0.31686667 0.32111531 0.325364 0.32961264 0.33386132 0.33811 0.34235865 0.34660733 0.35085598 0.354 0.35887924 0.37894392 0.40110752 0.4253424 0.45153588 0.47949323 0.5089864 0.5397945 0.5717387 0.604663 0.6384825 0.67313814 0.7086192 0.7449372 0.7821244 0.8202265 0.85931295 0.89946914 0.94077235 0.98332983 1.0272485 1.0726444 1.1196501 1.168392 1.2190323 1.2717295 1.3266433 1.3839597 1.443844 1.5064831 1.5720645 1.6407156 1.7125823 1.7877012 1.8660864 1.9475832 2.031949 2.1187615 2.2074113 2.2971811 2.387238 2.4766595 2.5645928 2.650292 2.7331216 2.8126101 2.8884435 2.960483 3.0286565 3.0929852 3.1535583 3.2105124 3.2639763 3.3141239 3.3611143 3.4050992 3.4462268 3.4846497 3.520494 3.5538876 3.5849388 3.6137524 3.6404226 3.665038 3.6876743 3.7084024 3.727279 3.7443671 3.7597122 3.7733583 3.785345 3.7957041 3.8044658 3.8116522 3.817284 3.8213747 3.8239362 3.8249745 3.825 3.8246334 3.8232007 3.820711 3.817191 3.812668 3.80717 3.8007238 3.7933574 3.785098 3.7759733 3.7660103 3.7552361 3.743678 3.7313623 3.7183158 3.7045648 3.690135 3.675052 3.6593409 3.6430268 3.6261346 3.6086879 3.5907104 3.5722258 3.553257 3.5338259 3.5139549 3.4936655 3.4729786 3.451915 3.4304948 3.4087377 3.386663 3.364289 3.3416345 3.3187172 3.2955542 3.2721622 3.248558 3.2247574 3.2007759 3.1766284 3.1523297 3.1278937 3.1033342 3.0786645 3.0538976 3.0290458 3.004121 2.979135 2.954099 2.9290237 2.90392 2.8787973 2.853666 2.828535 2.8034136 2.7783105 2.753234 2.7281919 2.703192 2.678242 2.6533487 2.6285188 2.603759 2.5790758 2.5544746 2.5299613 2.5055416 2.4812202 2.4570026 2.432893 2.4088964 2.3850167 2.3612578 2.3376238 2.3141184 2.290745 2.2675066 2.2444065 2.2214475 2.1986322 2.1759632 2.153443 2.131074 2.1088579 2.0867965 2.0648923 2.0431464 2.0215602 2.0001357 1.9788735 1.9577752 1.9368418 1.9160743 1.8954732 1.8750397 1.854774 1.834677 1.8147489 1.7949903 1.7754012 1.7559822 1.7367332 1.7176542 1.6987454 1.6800065 1.6614375 1.6430383 1.6248085 1.6067479 1.588856 1.5711324 1.5535768 1.5361886 1.5189673 1.5019121 1.4850227 1.4682981 1.4517378 1.435341 1.419107 1.4030348 1.3871238 1.371373 1.3557817 1.3403488 1.3250734 1.3099545 1.2949913 1.2801826 1.2655276 1.2510251 1.2366742 1.2224737 1.2084227 1.1945199 1.1807644 1.167155 1.1536907 1.1403702 1.1271925 1.1141565 1.1012609 1.0885047 1.0758867 1.0634058 1.0510607 1.0388503 1.0267736 1.0148292 1.003016 0.99133295 0.97977877 0.9683523 0.95705247 0.94587797 0.93482774 0.92390066 0.9130955 0.90241104 0.89184624 0.8814 0.871071 0.86085826 0.8507605 0.8407768 0.83090585 0.82114655 0.81149787 0.8019587 0.79252785 0.78320426 0.7739869 0.7648746 0.7558663 0.74696094 0.73815745 0.7294548 0.72085196 0.71234787 0.7039414 0.6956316 0.6874175 0.67929804 0.67127216 0.6633389 0.6554973 0.6477463 0.6400851 0.6325125 0.6250277 0.6176297 0.6103175 0.6030903 0.595947 0.58888686 0.5819088 0.5750121 0.5681957 0.56145877 0.55480045 0.54821986 0.5417161 0.5352884 0.5289358 0.5226576 0.5164528 0.51032066 0.5042604 0.4982712 0.49235225 0.4865027 0.48072186 0.47500888 0.46936303 0.46378353 0.45826963 0.4528206 0.44743568 0.44211417 0.43685532 0.43165842 0.42652276 0.42144763 0.41643235 0.41147625 0.40657863 0.4017388 0.39695612 0.39222994 0.3875596 0.38294443 0.37838382 0.37387714 0.36942375 0.36502305 0.3606744 0.35637724 0.35213095 0.34793493 0.34378862 0.33969143 0.33564278 0.33164212 0.32768887 0.32378247 0.31992245 0.31610817 0.31233916 0.30861485 0.30493474 0.30129832 0.29770505 0.29415447 0.29064602 0.28717926 0.2837537 0.2803688 0.27702412 0.27371922 0.27045357 0.26722676 0.2640383 0.26088774 0.25777468 0.2546986 0.25165915 0.24865583 0.24568824 0.24275598 0.2398586 0.2369957 0.23416689 0.23137173 0.22860986 0.22588088 0.22318438 0.22051999 0.21788733 0.21528603 0.21271572 0.21017602 0.20766658 0.20518704 0.20273703 0.20031622 0.19792427 0.19556081 0.19322553 0.19091807 0.18863814 0.18638536 0.18415946 0.18196009 0.17978694 0.17763971 0.17551808 0.17342174 0.17135042 0.16930379 0.16728157 0.16528347 0.16330922 0.1613585 0.15943107 0.15752661 0.1556449 0.15378562 0.15194853 0.15013336 0.14833985 0.14656775 0.14481679 0.14308672 0.1413773 0.13968828 0.13801943 0.13637048 0.13474123 0.13313141 0.13154082 0.12996922 0.12841637 0.12688208 0.12536608 0.12386819 0.122388184 0.12092585 0.11948097 0.11805335 0.116642766 0.11524903 0.11387194 0.112511285 0.11116689 0.10983854 0.10852606 0.10722925 0.10594793 0.1046819 0.103431 0.10219505 0.100973845 0.09976723 0.098575026 0.09739707 0.096233174 0.095083185 0.093946934 0.09282425 0.09171498 0.09061896 0.08953603 0.08846604 0.087408826 0.08636425 0.08533215 0.08431237 0.083304785 0.08230923 0.081325576 0.08035366 0.07939337 0.07844455 0.07750706 0.07658077 0.075665556 0.074761264 0.07386778 0.07298498 0.072112724 0.071250886 0.070399344 0.06955798 0.06872667 0.06790529 0.06709373 0.06629186 0.065499574 0.06471676 0.0639433 0.06317907 0.06242398 0.061677914 0.06094076 0.060212415 0.059492774 0.058781736 0.05807919 0.05738504 0.056699187 0.056021526 0.055351965 0.054690406 0.05403675 0.05339091 0.052752785 0.052122287 0.051499322 0.050883804 0.05027564

</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="3.825" PeakHeight="296.183" Num="5" zHalfNm="262.652" Error="2.857">
-83.828 11.706 -8.343 4.299 -1.277
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="8" 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="6516.247" A="-1.15734487E11" B="3.572052E7" C="-2756.0876" Error="0.00174"/>
<QuasiParabolic ID="2" StartDistance="6516.247" EndDistance="6552.493" A="0.0" B="1270.9193" C="-0.15500541" Error="0.0261"/>
<QuasiParabolic ID="3" StartDistance="6552.493" EndDistance="6587.0" A="1.88115497E10" B="-5827096.5" C="451.19504" Error="0.0261"/>
<QuasiParabolic ID="4" StartDistance="6587.0" EndDistance="6595.0" A="3.36638352E12" B="-1.02224493E9" C="77604.516" Error="0.0222"/>
<QuasiParabolic ID="5" StartDistance="6595.0" EndDistance="6612.0" A="3.80963285E12" B="-1.1566647E9" C="87795.55" Error="0.038"/>
<QuasiParabolic ID="6" StartDistance="6612.0" EndDistance="6631.0" A="1.81573224E13" B="-5.4965591E9" C="415978.72" Error="0.0321"/>
<QuasiParabolic ID="7" StartDistance="6631.0" EndDistance="6666.183" A="-1.26032659E13" B="3.78125414E9" C="-283600.0" Error="0.0108"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="108.74" Depth="0.154"/>
<TopsideChapman PeakHeight="296.183" PeakDensity="181521.4" PeakScaleHeight="25.988" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
