<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-15 -105 09:45:00.000"
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: 100%</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.15 (105) 09:45:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.98" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202610504150945001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.425" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.423" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.725" 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="252.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="252.500" 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="0.025" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.275" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="310.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="1.120" 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="241.437" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="199.053" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="4.121" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="54.269" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="2.005" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="29.943" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="68.330" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.370" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="41">
<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 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
252.500 253.750 255.000 256.250 257.500 258.125 258.750 259.375 260.000 261.250 262.500 264.167 265.833 267.500 268.750 270.000 271.250 272.500 274.250 276.000 277.750 279.500 281.250 283.000 284.750 286.500 288.250 290.000 292.857 295.714 298.571 301.429 304.286 307.143 310.000 315.000 320.500 326.000 331.500 337.000 342.500
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
63 0 0 0 63 0 0 0 60 0 60 0 0 63 0 63 0 39 0 0 0 0 0 0 0 0 0 81 0 0 0 0 0 0 78 75 0 0 0 0 78
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="609">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
90.16 91.0 92.0 93.0 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 126.43667 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 142.87334 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 159.31 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 241.437 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0 600.0 601.0 602.0 603.0 604.0 605.0 606.0 607.0 608.0 609.0 610.0 611.0 612.0 613.0 614.0 615.0 616.0 617.0 618.0 619.0 620.0 621.0 622.0 623.0 624.0 625.0 626.0 627.0 628.0 629.0 630.0 631.0 632.0 633.0 634.0 635.0 636.0 637.0 638.0 639.0 640.0 641.0 642.0 643.0 644.0 645.0 646.0 647.0 648.0 649.0 650.0 651.0 652.0 653.0 654.0 655.0 656.0 657.0 658.0 659.0 660.0 661.0 662.0 663.0 664.0 665.0 666.0 667.0 668.0 669.0 670.0 671.0 672.0 673.0 674.0 675.0 676.0 677.0 678.0 679.0 680.0 681.0 682.0 683.0 684.0 685.0 686.0 687.0 688.0 689.0 690.0 691.0 692.0 693.0 694.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.32429323 0.4883009 0.59646934 0.67886215 0.7464976 0.80407083 0.85402286 0.897814 0.9363819 0.970362 1.0002275 1.0263144 1.0488781 1.0681129 1.0841756 1.0971789 1.1072078 1.1143284 1.1185842 1.12 1.1192683 1.1169724 1.1132035 1.1079233 1.1010813 1.092603 1.0826733 1.0709959 1.0576918 1.0426037 1.0257639 1.0070485 0.9863623 0.9635382 0.9385454 0.911106 0.898 0.898 0.898 0.898 0.898 0.898 0.898 0.898 0.898 0.898 0.898 0.898 0.898 0.898 0.898 0.898 0.898 0.898 0.89971083 0.9132172 0.9267236 0.94022995 0.95373636 0.9672428 0.98074913 0.99425554 1.007762 1.0212682 1.0347747 1.0482811 1.0617875 1.0752939 1.0888002 1.1023066 1.115813 1.12 1.1421492 1.1743572 1.206759 1.2394135 1.272346 1.3055707 1.339083 1.3728769 1.4069219 1.4411873 1.4756428 1.510236 1.5449239 1.5796574 1.6144041 1.6491112 1.6837423 1.7182627 1.752639 1.7868398 1.8208474 1.8546385 1.888191 1.9215015 1.9545603 1.9873633 2.0199008 2.0521736 2.0841815 2.1159294 2.1474197 2.1786592 2.2096486 2.2404003 2.270921 2.30121 2.3312826 2.3611472 2.3908052 2.4202673 2.4495497 2.4786482 2.507572 2.5363395 2.564944 2.5934021 2.6217117 2.6498911 2.6779335 2.7058504 2.733646 2.761327 2.7888873 2.8163366 2.843679 2.8709064 2.898025 2.9250267 2.9519112 2.9786713 3.0052931 3.0317714 3.0580823 3.0842116 3.1101284 3.135804 3.1611907 3.186241 3.2108905 3.2350538 3.2586462 3.281537 3.303581 3.3246055 3.3444037 3.3627205 3.3792768 3.3937607 3.4058454 3.415204 3.4215536 3.4246795 3.425 3.4248822 3.4240985 3.4225934 3.4203825 3.417482 3.4139073 3.4096751 3.4048014 3.3993022 3.3931937 3.3864918 3.3792124 3.371372 3.3629858 3.35407 3.34464 3.3347118 3.3243003 3.313421 3.3020892 3.2903194 3.2781267 3.2655256 3.2525303 3.2391553 3.2254145 3.2113216 3.1968904 3.182134 3.1670654 3.1516979 3.1360438 3.1201158 3.103926 3.0874865 3.0708086 3.0539043 3.0367846 3.0194604 3.0019429 2.9842422 2.9663687 2.9483325 2.9301434 2.911811 2.8933446 2.8747535 2.8560462 2.8372316 2.8183184 2.7993145 2.7802277 2.7610662 2.7418373 2.7225482 2.7032065 2.6838188 2.664392 2.6449325 2.6254466 2.6059406 2.58642 2.5668914 2.5473597 2.5278304 2.508309 2.4888 2.469309 2.4498403 2.4303987 2.410988 2.3916132 2.372278 2.3529866 2.3337421 2.314549 2.2954104 2.2763298 2.2573104 2.2383552 2.2194672 2.2006495 2.1819048 2.1632354 2.1446445 2.1261337 2.1077058 2.089363 2.0711071 2.0529406 2.034865 2.016882 1.9989935 1.9812013 1.9635067 1.9459113 1.9284164 1.9110233 1.8937333 1.8765473 1.8594668 1.8424925 1.8256253 1.8088663 1.7922161 1.7756757 1.7592454 1.7429262 1.7267185 1.7106229 1.6946399 1.6787698 1.663013 1.6473699 1.6318406 1.6164256 1.6011249 1.5859387 1.5708672 1.5559102 1.5410682 1.5263407 1.511728 1.4972299 1.4828465 1.4685774 1.4544225 1.4403818 1.4264549 1.4126416 1.3989418 1.3853549 1.3718809 1.3585193 1.3452698 1.332132 1.3191056 1.3061901 1.2933851 1.2806902 1.2681049 1.2556287 1.2432611 1.2310017 1.2188499 1.2068051 1.194867 1.1830349 1.1713082 1.1596863 1.1481688 1.1367549 1.1254442 1.1142359 1.1031295 1.0921243 1.0812199 1.0704154 1.0597103 1.0491039 1.0385954 1.0281845 1.0178703 1.0076522 0.99752945 0.98750156 0.97756773 0.9677273 0.95797956 0.94832397 0.9387597 0.9292862 0.9199026 0.9106085 0.90140295 0.8922854 0.8832551 0.8743115 0.8654538 0.85668135 0.84799343 0.83938944 0.8308686 0.8224304 0.8140739 0.8057987 0.79760396 0.7894891 0.7814533 0.7734961 0.7656167 0.7578145 0.7500888 0.742439 0.7348643 0.7273642 0.719938 0.71258503 0.70530474 0.69809633 0.69095933 0.683893 0.67689675 0.6699699 0.6631119 0.6563222 0.64959997 0.6429447 0.6363558 0.62983274 0.62337476 0.6169814 0.6106519 0.60438585 0.5981826 0.59204155 0.58596206 0.5799437 0.57398576 0.5680878 0.5622491 0.5564693 0.5507477 0.54508376 0.539477 0.53392684 0.5284327 0.5229941 0.51761055 0.5122814 0.5070062 0.5017845 0.4966157 0.49149927 0.4864348 0.48142168 0.47645947 0.4715477 0.46668583 0.46187338 0.45710993 0.45239493 0.44772792 0.44310847 0.43853608 0.4340103 0.42953068 0.42509672 0.42070806 0.41636416 0.41206464 0.40780905 0.40359694 0.3994279 0.39530146 0.39121726 0.38717484 0.3831738 0.37921372 0.37529418 0.3714148 0.3675752 0.36377493 0.36001363 0.3562909 0.3526064 0.34895965 0.34535035 0.3417781 0.33824253 0.33474326 0.33127993 0.32785222 0.3244597 0.32110208 0.31777897 0.31449005 0.31123495 0.30801332 0.30482486 0.3016692 0.29854602 0.295455 0.29239583 0.28936812 0.28637165 0.28340602 0.28047094 0.2775661 0.27469122 0.271846 0.26903006 0.2662432 0.26348507 0.2607554 0.25805387 0.2553802 0.25273412 0.2501154 0.24752365 0.24495868 0.24242018 0.23990789 0.23742156 0.23496088 0.23252563 0.23011553 0.22773033 0.22536978 0.22303362 0.2207216 0.21843347 0.21616898 0.21392791 0.21171 0.20951504 0.20734276 0.20519294 0.20306535 0.20095977 0.19887596 0.19681372 0.1947728 0.19275299 0.19075409 0.18877587 0.18681811 0.18488061 0.18296316 0.18106556 0.17918761 0.1773291 0.17548981 0.17366956 0.17186818 0.17008543 0.16832113 0.16657512 0.16484718 0.16313714 0.16144481 0.15977 0.15811254 0.15647225 0.15484895 0.15324247 0.15165262 0.15007925 0.14852217 0.14698124 0.14545625 0.1439471 0.14245355 0.14097549 0.13951276 0.13806517 0.13663259 0.13521487 0.13381182 0.13242333 0.13104923 0.12968937 0.1283436 0.12701179 0.12569378 0.12438943 0.12309861 0.12182117 0.12055697 0.11930589 0.11806777 0.11684249 0.11562992 0.11442992 0.113242365 0.11206712 0.11090407 0.10975307 0.10861402 0.10748677 0.10637122 0.105267234 0.1041747 0.1030935 0.10202351 0.10096462 0.09991671 0.09887967 0.09785339 0.09683776 0.09583265 0.094837986 0.09385363 0.09287948 0.09191544 0.090961404 0.09001727 0.08908292 0.088158265 0.08724321 0.08633764 0.08544147 0.0845546 0.08367693 0.08280836 0.08194881 0.08109818 0.080256365 0.07942329 0.078598864 0.07778299 0.07697558 0.07617655 0.07538581 0.074603274 0.07382885 0.07306248 0.072304055 0.0715535 0.07081073 0.07007567 0.06934824 0.068628356 0.067915946 0.06721093 0.066513225 0.065822765 0.06513947 0.064463265 0.06379408 0.06313184 0.06247647 0.061827905 0.061186068 0.060550895 0.05992231 0.059300255 0.058684655 0.05807544 0.05747255 0.056875918 0.05628548 0.055701166 0.05512292 0.054550678 0.05398437 0.053423945 0.052869335 0.05232048 0.05177732 0.051239803 0.05070786 0.050181445

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="1.12" PeakHeight="110.0" Num="3" Error="0.0">
-27.0 8.543 -1.383
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="1.12" EndFrequency="3.425" PeakHeight="241.437" Num="5" zHalfNm="199.053" Error="1.244">
-73.452 -14.525 8.06 -2.666 0.456
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="11" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6459.915" EndDistance="6480.001" A="-5.4497457E12" B="1.68202035E9" C="-129784.266" Error="0.00354"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6496.437" A="-2.94521274E12" B="9.0901632E8" C="-70138.89" Error="0.00126"/>
<QuasiParabolic ID="2" StartDistance="6496.437" EndDistance="6512.873" A="0.0" B="-2624.3809" C="1.2093569" Error="0.00126"/>
<QuasiParabolic ID="3" StartDistance="6512.873" EndDistance="6513.0" A="-4.17038942E14" B="1.28063144E11" C="-9831317.0" Error="0.0"/>
<QuasiParabolic ID="4" StartDistance="6513.0" EndDistance="6515.0" A="9.2946846E12" B="-2.85459789E9" C="219177.94" Error="0.00953"/>
<QuasiParabolic ID="5" StartDistance="6515.0" EndDistance="6527.0" A="-3.68060858E11" B="1.11709176E8" C="-8474.176" Error="0.00909"/>
<QuasiParabolic ID="6" StartDistance="6527.0" EndDistance="6531.0" A="1.10532525E13" B="-3.38800384E9" C="259620.89" Error="0.00996"/>
<QuasiParabolic ID="7" StartDistance="6531.0" EndDistance="6541.0" A="3.1273614E12" B="-9.6084378E8" C="73802.484" Error="0.00228"/>
<QuasiParabolic ID="8" StartDistance="6541.0" EndDistance="6580.0" A="1.21936137E12" B="-3.77446752E8" C="29207.082" Error="0.00954"/>
<QuasiParabolic ID="9" StartDistance="6580.0" EndDistance="6604.0" A="-2.11507593E11" B="5.746784E7" C="-3841.1387" Error="0.00521"/>
<QuasiParabolic ID="10" StartDistance="6604.0" EndDistance="6611.437" A="-1.93345083E13" B="5.8488064E9" C="-442313.16" Error="0.00137"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="49.31" Depth="0.222"/>
<TopsideChapman PeakHeight="241.437" PeakDensity="145541.25" PeakScaleHeight="29.943" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
