<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-03-31 -090 09:25:00.000"
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 22 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 70% PACIFIC flags: F2 cusps do not match</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.03.31 (090) 09:25:00</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">
FF202609003310925001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.900" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.334" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="9.670" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.425" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.425" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.600" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="295.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="295.000" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.800" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="331.176" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.911" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.425" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.425" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="260.816" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="216.058" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.767" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="60.560" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.557" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="33.253" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="66.170" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.870" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="20">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
295.000 295.000 297.500 298.387 299.376 300.488 301.745 303.179 304.829 306.749 309.010 311.713 315.000 319.084 324.296 331.176 340.679 354.657 377.246 419.945
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
75 78 66 63 66 63 63 63 63 63 60 0 63 63 0 0 0 0 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 -9.375 -3.125 -9.375
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="661">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
90.378 91.0 92.0 93.0 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 132.40834 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 154.81667 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 177.225 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 260.816 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0 600.0 601.0 602.0 603.0 604.0 605.0 606.0 607.0 608.0 609.0 610.0 611.0 612.0 613.0 614.0 615.0 616.0 617.0 618.0 619.0 620.0 621.0 622.0 623.0 624.0 625.0 626.0 627.0 628.0 629.0 630.0 631.0 632.0 633.0 634.0 635.0 636.0 637.0 638.0 639.0 640.0 641.0 642.0 643.0 644.0 645.0 646.0 647.0 648.0 649.0 650.0 651.0 652.0 653.0 654.0 655.0 656.0 657.0 658.0 659.0 660.0 661.0 662.0 663.0 664.0 665.0 666.0 667.0 668.0 669.0 670.0 671.0 672.0 673.0 674.0 675.0 676.0 677.0 678.0 679.0 680.0 681.0 682.0 683.0 684.0 685.0 686.0 687.0 688.0 689.0 690.0 691.0 692.0 693.0 694.0 695.0 696.0 697.0 698.0 699.0 700.0 701.0 702.0 703.0 704.0 705.0 706.0 707.0 708.0 709.0 710.0 711.0 712.0 713.0 714.0 715.0 716.0 717.0 718.0 719.0 720.0 721.0 722.0 723.0 724.0 725.0 726.0 727.0 728.0 729.0 730.0 731.0 732.0 733.0 734.0 735.0 736.0 737.0 738.0 739.0 740.0 741.0 742.0 743.0 744.0 745.0 746.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.26969397 0.3932268 0.48225066 0.55043346 0.6062548 0.6536108 0.6945741 0.7303985 0.7618803 0.78957176 0.8138663 0.83506685 0.85338044 0.86898106 0.88199914 0.8925293 0.90064853 0.9064118 0.90985465 0.911 0.9104351 0.9087429 0.90584975 0.9017811 0.89657426 0.8901948 0.8825432 0.87370694 0.8635528 0.85206497 0.83926415 0.8250024 0.8092808 0.7919915 0.7729847 0.75214946 0.72938293 0.70443463 0.6770358 0.64679503 0.61331314 0.57575697 0.555 0.555 0.555 0.555 0.555 0.555 0.555 0.555 0.555 0.555 0.555 0.555 0.555 0.555 0.555 0.555 0.555 0.555 0.555 0.555 0.555 0.555 0.555 0.555 0.5579126 0.57379955 0.5896865 0.6055735 0.6214604 0.63734734 0.6532343 0.6691212 0.68500817 0.70089513 0.7167821 0.732669 0.74855596 0.7644429 0.7803299 0.7962168 0.81210375 0.8279907 0.8438777 0.8597646 0.87565154 0.8915385 0.90742546 0.911 0.9309246 0.95671135 0.9826311 1.0087354 1.0350579 1.0616294 1.0884709 1.1156013 1.1430265 1.170754 1.1987959 1.2271359 1.2557824 1.284716 1.3139353 1.3434248 1.3731616 1.4031341 1.433329 1.463715 1.4942768 1.5249873 1.5558294 1.5867745 1.6178037 1.6488922 1.680019 1.7111579 1.7422867 1.7733909 1.8044459 1.8354305 1.8663267 1.8971148 1.9277816 1.9583044 1.9886736 2.0188663 2.048869 2.078668 2.108245 2.1375902 2.1666856 2.1955152 2.224066 2.2523263 2.2802746 2.3079011 2.335186 2.3621182 2.3886735 2.4148383 2.4405932 2.4659202 2.490805 2.515212 2.539135 2.5625424 2.5854154 2.6077218 2.6294456 2.6505537 2.6710236 2.69082 2.70992 2.7282882 2.7458954 2.762713 2.778705 2.793841 2.8080924 2.8214235 2.8338044 2.845206 2.8555984 2.864955 2.87325 2.8804615 2.8865662 2.8915465 2.8953884 2.8980799 2.899612 2.9 2.8999913 2.8996437 2.8987951 2.8974557 2.8956351 2.893343 2.8905897 2.887385 2.8837385 2.8796604 2.875161 2.8702497 2.8649368 2.859232 2.8531451 2.846686 2.8398645 2.83269 2.8251724 2.8173213 2.8091457 2.8006556 2.7918599 2.7827678 2.7733884 2.7637308 2.7538037 2.743616 2.7331765 2.7224934 2.7115755 2.7004306 2.6890674 2.6774936 2.6657174 2.6537464 2.641588 2.6292503 2.6167405 2.6040657 2.591233 2.5782497 2.5651224 2.551858 2.538463 2.524944 2.5113072 2.4975588 2.483705 2.4697518 2.4557047 2.4415696 2.427352 2.4130573 2.398691 2.384258 2.3697636 2.3552125 2.3406096 2.3259597 2.3112671 2.2965364 2.2817721 2.2669783 2.252159 2.2373183 2.2224603 2.2075882 2.1927063 2.1778178 2.1629264 2.1480355 2.133148 2.1182675 2.103397 2.0885391 2.073697 2.058874 2.0440717 2.0292938 2.014542 1.9998195 1.9851283 1.9704708 1.955849 1.9412653 1.9267218 1.9122204 1.8977629 1.8833513 1.8689874 1.854673 1.8404096 1.8261988 1.8120422 1.7979413 1.7838975 1.7699121 1.7559865 1.7421217 1.728319 1.7145798 1.7009048 1.6872953 1.6737521 1.6602763 1.6468686 1.63353 1.6202613 1.6070632 1.5939364 1.5808817 1.5678996 1.5549908 1.5421557 1.5293951 1.5167093 1.5040988 1.491564 1.4791054 1.4667232 1.4544178 1.4421896 1.4300388 1.4179655 1.4059702 1.394053 1.382214 1.3704532 1.3587711 1.3471675 1.3356426 1.3241963 1.3128289 1.3015403 1.2903304 1.2791992 1.2681468 1.257173 1.2462777 1.235461 1.2247225 1.2140623 1.2034802 1.1929762 1.1825498 1.1722012 1.1619297 1.1517357 1.1416185 1.1315782 1.1216143 1.1117268 1.1019152 1.0921794 1.0825192 1.072934 1.0634239 1.0539882 1.0446268 1.0353395 1.0261258 1.0169853 1.0079179 0.99892306 0.99000055 0.9811499 0.9723709 0.96366304 0.95502603 0.9464595 0.937963 0.9295362 0.92117876 0.91289026 0.90467024 0.89651835 0.8884342 0.8804174 0.8724675 0.86458415 0.8567669 0.8490153 0.84132904 0.8337077 0.8261508 0.8186579 0.81122863 0.8038626 0.79655933 0.78931844 0.78213954 0.7750221 0.7679658 0.76097023 0.7540349 0.74715936 0.7403433 0.73358613 0.72688764 0.72024727 0.71366465 0.7071393 0.7006709 0.694259 0.68790305 0.68160284 0.6753578 0.6691676 0.6630318 0.65695 0.6509217 0.64494663 0.6390243 0.63315433 0.6273363 0.6215698 0.61585444 0.6101898 0.6045755 0.5990112 0.5934963 0.5880307 0.58261377 0.57724524 0.5719246 0.56665164 0.56142586 0.5562469 0.5511144 0.5460279 0.54098713 0.5359916 0.5310411 0.5261351 0.5212733 0.51645535 0.51168084 0.5069495 0.5022608 0.49761453 0.4930103 0.48844773 0.4839265 0.47944623 0.47500658 0.47060722 0.4662478 0.46192798 0.4576474 0.4534058 0.44920275 0.44503796 0.4409111 0.43682188 0.43276992 0.42875493 0.42477655 0.42083454 0.4169285 0.4130582 0.40922323 0.40542337 0.40165827 0.39792764 0.39423117 0.39056855 0.38693953 0.38334376 0.37978098 0.3762509 0.3727532 0.36928764 0.3658539 0.3624517 0.3590808 0.35574088 0.35243165 0.34915292 0.34590432 0.34268564 0.3394966 0.33633697 0.33320642 0.33010474 0.32703164 0.3239869 0.3209702 0.31798136 0.3150201 0.3120862 0.3091794 0.30629942 0.30344605 0.30061904 0.29781815 0.29504317 0.29229385 0.28956997 0.28687125 0.28419754 0.28154856 0.27892408 0.2763239 0.27374783 0.2711956 0.268667 0.26616183 0.2636799 0.26122096 0.2587848 0.25637123 0.25398004 0.25161105 0.24926402 0.24693875 0.24463508 0.24235277 0.24009165 0.23785152 0.23563218 0.23343346 0.23125516 0.22909708 0.22695905 0.2248409 0.22274241 0.22066343 0.21860377 0.21656325 0.2145417 0.21253896 0.21055482 0.20858915 0.20664175 0.20471247 0.20280112 0.20090757 0.19903164 0.19717316 0.19533198 0.19350792 0.19170085 0.18991059 0.18813701 0.18637994 0.18463922 0.18291472 0.18120627 0.17951374 0.17783697 0.17617583 0.17453015 0.17289981 0.17128466 0.16968456 0.16809936 0.16652894 0.16497315 0.16343187 0.16190496 0.16039227 0.15889369 0.15740907 0.1559383 0.15448125 0.15303777 0.15160777 0.15019108 0.14878763 0.14739725 0.14601985 0.14465529 0.14330345 0.14196424 0.14063752 0.13932316 0.13802108 0.13673115 0.13545324 0.13418727 0.13293311 0.13169065 0.13045979 0.12924041 0.12803242 0.12683569 0.12565014 0.12447566 0.12331214 0.12215948 0.12101758 0.119886346 0.11876567 0.117655456 0.1165556 0.11546603 0.11438662 0.113317296 0.11225796 0.111208506 0.11016886 0.10913892 0.1081186 0.10710781 0.10610646 0.10511446 0.10413173 0.103158176 0.10219371 0.10123826 0.10029174 0.09935405 0.09842513 0.09750488 0.09659323 0.095690094 0.0947954 0.09390906 0.093031004 0.092161156 0.09129943 0.09044576 0.08960006 0.08876226 0.087932296 0.08711008 0.08629555 0.08548864 0.08468926 0.08389735 0.08311285 0.08233567 0.08156576 0.080803044 0.08004745 0.07929893 0.078557394 0.0778228 0.07709506 0.07637413 0.07565993 0.07495241 0.0742515 0.073557146 0.07286928 0.07218785 0.07151278 0.070844024 0.07018152 0.069525205 0.06887503 0.06823093 0.06759285 0.06696074 0.06633453 0.06571418 0.06509963 0.064490825 0.06388771 0.06329023 0.06269834 0.06211198 0.061531108 0.060955662 0.060385596 0.05982086 0.059261404 0.05870718 0.058158137 0.057614226 0.0570754 0.056541614 0.056012817 0.055488966 0.05497001 0.05445591 0.053946614 0.05344208 0.052942265 0.05244712 0.05195661 0.051470686 0.0509893 0.05051242 0.05004

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.911" PeakHeight="110.0" Num="3" Error="0.0">
-26.076 7.557 -1.103
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.911" EndFrequency="2.9" PeakHeight="260.816" Num="5" zHalfNm="216.058" Error="0.921">
-81.474 -3.232 1.541 -0.608 0.182
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="10" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6459.95" EndDistance="6480.001" A="-3.61814504E12" B="1.11671142E9" C="-86165.17" Error="0.00512"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6502.408" A="-1.84350173E12" B="5.6898202E8" C="-43902.105" Error="0.00169"/>
<QuasiParabolic ID="2" StartDistance="6502.408" EndDistance="6524.817" A="0.0" B="1944.2288" C="0.009543344" Error="0.00169"/>
<QuasiParabolic ID="3" StartDistance="6524.817" EndDistance="6526.0" A="-6.340985E12" B="1.9425833E9" C="-148778.98" Error="0.00233"/>
<QuasiParabolic ID="4" StartDistance="6526.0" EndDistance="6544.0" A="5.9243076E11" B="-1.82275856E8" C="14020.524" Error="0.00926"/>
<QuasiParabolic ID="5" StartDistance="6544.0" EndDistance="6545.0" A="-2.6572376E12" B="8.1089907E8" C="-61863.867" Error="9.84E-12"/>
<QuasiParabolic ID="6" StartDistance="6545.0" EndDistance="6548.0" A="6.0026132E12" B="-1.83535014E9" C="140294.22" Error="0.00813"/>
<QuasiParabolic ID="7" StartDistance="6548.0" EndDistance="6585.0" A="2.09826651E12" B="-6.4281914E8" C="49233.504" Error="0.00676"/>
<QuasiParabolic ID="8" StartDistance="6585.0" EndDistance="6613.0" A="-5.12016253E11" B="1.4997744E8" C="-10963.656" Error="0.00877"/>
<QuasiParabolic ID="9" StartDistance="6613.0" EndDistance="6630.816" A="-5.998044E12" B="1.80914214E9" C="-136410.86" Error="0.00318"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="67.225" Depth="0.356"/>
<TopsideChapman PeakHeight="260.816" PeakDensity="104342.43" PeakScaleHeight="33.253" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
