<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-12 -102 22:10:00.000"
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" >
2026.04.12 (102) 22:10:00</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">
FF202610204122210001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.850" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.728" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="14.353" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.050" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.050" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.250" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="200.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="200.000" 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="3.550" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="250.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.422" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.050" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.050" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="229.121" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="199.723" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="6.389" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="41.583" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.714" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="22.586" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="34.010" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="4.190" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="73">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.05 2.075 2.1 2.125 2.15 2.175 2.2 2.225 2.25 2.275 2.3 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 3.625 3.65 3.675 3.7 3.725 3.75 3.775 3.8 3.825 3.85
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
200.000 200.000 200.000 200.500 201.000 201.500 202.000 202.500 202.500 202.500 203.125 203.750 204.375 205.000 205.000 205.000 207.500 207.500 207.500 207.500 207.500 210.000 210.000 210.000 210.000 210.000 212.500 212.500 212.500 212.500 212.500 215.000 215.000 217.500 217.500 217.500 217.500 220.000 220.000 220.000 222.500 222.500 222.500 225.000 227.500 227.500 227.500 230.000 230.000 232.500 232.500 235.000 235.000 237.500 237.500 240.000 242.500 245.000 245.000 247.500 250.000 255.000 260.000 260.000 265.000 275.000 277.500 280.000 286.972 295.227 305.154 317.318 332.572
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
54 54 54 0 0 0 0 54 0 42 0 0 0 39 42 72 72 63 63 66 63 60 63 63 60 57 54 57 57 42 42 36 36 33 30 0 54 57 60 69 69 72 69 81 78 72 72 66 69 63 66 87 90 81 78 66 63 60 60 63 63 63 63 63 57 57 57 45 0 0 0 60 57
</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 -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="489">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
92.384 93.0 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 229.121 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.22173388 0.25270155 0.2789116 0.3013434 0.32076305 0.3376997 0.35253358 0.36553732 0.37690982 0.3868008 0.3953256 0.4025689 0.4086002 0.4134722 0.41722342 0.41988343 0.4214719 0.422 0.4217539 0.4209467 0.41958562 0.41768447 0.41526318 0.41221362 0.40864202 0.40446377 0.39967814 0.39430127 0.3881966 0.3814438 0.37399364 0.36569732 0.3566621 0.34663728 0.33571163 0.32367897 0.3104303 0.29576698 0.278 0.278 0.278 0.278 0.278 0.278 0.278 0.278 0.278 0.278 0.278 0.278 0.278 0.278 0.278 0.278 0.278 0.278 0.278 0.278 0.278 0.278 0.28485715 0.29171428 0.29857144 0.30542856 0.31228572 0.31914285 0.326 0.33285713 0.3397143 0.34657142 0.35342857 0.36028573 0.36714286 0.374 0.38085714 0.3877143 0.39457142 0.40142858 0.4082857 0.41514286 0.422 0.47798172 0.5218067 0.5623008 0.6018005 0.64143896 0.6819523 0.72389984 0.7678201 0.8142273 0.8636994 0.9168765 0.97454447 1.0376161 1.1072649 1.1848668 1.2721579 1.3711635 1.4839736 1.6122465 1.755828 1.9114146 2.0721548 2.22993 2.3786473 2.5154192 2.6397622 2.7524095 2.8545215 2.9473312 3.0319977 3.1094344 3.1805007 3.2458613 3.306085 3.3616586 3.4129994 3.4604294 3.5042634 3.544737 3.582075 3.616457 3.6480446 3.6769807 3.7033868 3.7273643 3.7490113 3.7684028 3.785607 3.8006854 3.8136883 3.8246567 3.8336267 3.8406262 3.845677 3.848793 3.8499906 3.85 3.849435 3.847443 3.8440547 3.8393116 3.8332555 3.825929 3.817374 3.807633 3.7967474 3.7847593 3.7717104 3.7576413 3.7425933 3.726606 3.7097194 3.691973 3.6734047 3.6540527 3.6339543 3.6131458 3.591663 3.569541 3.5468137 3.5235147 3.4996767 3.4753315 3.45051 3.4252424 3.3995578 3.373485 3.3470514 3.3202841 3.2932088 3.2658508 3.2382345 3.2103837 3.1823206 3.1540675 3.1256459 3.097076 3.0683773 3.0395691 3.0106695 2.9816961 2.952666 2.9235952 2.894499 2.8653927 2.8362904 2.8072054 2.7781515 2.7491405 2.7201848 2.6912954 2.6624832 2.6337588 2.6051316 2.576611 2.5482063 2.5199254 2.4917762 2.4637666 2.4359035 2.4081938 2.3806436 2.3532588 2.3260453 2.2990081 2.2721524 2.2454824 2.2190025 2.1927168 2.166629 2.1407425 2.1150606 2.0895858 2.064321 2.0392687 2.0144312 1.9898101 1.9654075 1.9412249 1.9172636 1.893525 1.87001 1.8467195 1.8236542 1.8008146 1.7782013 1.7558146 1.7336544 1.7117208 1.690014 1.6685334 1.647279 1.6262501 1.6054466 1.5848675 1.5645123 1.5443802 1.5244703 1.5047818 1.4853137 1.4660648 1.4470341 1.4282204 1.4096226 1.3912392 1.3730689 1.3551105 1.3373625 1.3198235 1.3024919 1.2853663 1.268445 1.2517265 1.2352093 1.2188916 1.2027719 1.1868483 1.1711193 1.1555833 1.1402383 1.1250827 1.1101147 1.0953327 1.0807347 1.0663192 1.0520842 1.038028 1.0241488 1.010445 0.99691445 0.9835556 0.97036666 0.9573457 0.94449115 0.9318011 0.9192738 0.90690744 0.89470035 0.8826507 0.8707567 0.8590167 0.8474289 0.8359917 0.8247032 0.8135618 0.8025658 0.7917135 0.7810032 0.77043325 0.760002 0.7497078 0.7395491 0.72952414 0.7196314 0.70986927 0.70023614 0.6907305 0.6813508 0.6720955 0.662963 0.65395176 0.6450604 0.63628745 0.6276313 0.6190906 0.6106639 0.60234976 0.59414667 0.5860534 0.5780684 0.57019037 0.562418 0.55474985 0.54718465 0.5397211 0.5323578 0.5250936 0.5179271 0.51085716 0.5038824 0.49700174 0.4902138 0.48351753 0.4769116 0.47039494 0.46396634 0.45762464 0.45136872 0.44519746 0.43910974 0.4331045 0.4271806 0.42133698 0.41557258 0.4098864 0.40427735 0.39874446 0.39328668 0.38790303 0.38259253 0.3773542 0.3721871 0.36709026 0.36206275 0.35710365 0.35221204 0.34738705 0.34262773 0.33793327 0.33330274 0.32873532 0.32423016 0.31978643 0.31540328 0.31107992 0.30681553 0.30260932 0.29846054 0.29436836 0.29033208 0.28635088 0.28242406 0.2785509 0.27473065 0.2709626 0.267246 0.26358026 0.2599646 0.25639838 0.2528809 0.24941155 0.24598965 0.24261455 0.23928563 0.23600225 0.23276381 0.22956969 0.22641927 0.22331199 0.22024725 0.21722446 0.21424307 0.2113025 0.2084022 0.20554164 0.20272025 0.19993751 0.19719289 0.19448589 0.19181597 0.18918264 0.1865854 0.18402375 0.18149722 0.17900531 0.17654756 0.17412351 0.1717327 0.16937464 0.16704895 0.16475512 0.16249277 0.16026144 0.1580607 0.15589015 0.15374938 0.15163796 0.1495555 0.14750163 0.14547592 0.143478 0.14150749 0.13956402 0.13764723 0.13575673 0.13389216 0.1320532 0.13023946 0.1284506 0.1266863 0.12494623 0.123230025 0.12153738 0.11986797 0.11822148 0.11659758 0.11499597 0.11341635 0.11185841 0.110321864 0.10880642 0.10731176 0.105837636 0.104383744 0.10294981 0.10153557 0.10014075 0.09876508 0.0974083 0.09607015 0.09475037 0.09344871 0.09216493 0.09089878 0.08965002 0.0884184 0.087203704 0.08600568 0.084824115 0.08365877 0.082509436 0.08137588 0.0802579 0.07915527 0.07806779 0.07699524 0.07593742 0.07489413 0.07386517 0.07285034 0.07184946 0.070862316 0.06988873 0.068928525 0.067981504 0.0670475 0.06612632 0.065217786 0.06432174 0.063438006 0.06256641 0.061706778 0.06085896 0.06002279 0.059198104 0.05838475 0.05758257 0.056791406 0.05601111 0.055241536 0.054482535 0.053733956 0.052995667 0.052267518 0.05154937 0.05084109 0.05014254

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.422" PeakHeight="110.0" Num="3" Error="0.0">
-20.766 3.408 -0.258
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.422" EndFrequency="3.85" PeakHeight="229.121" Num="5" zHalfNm="199.723" Error="1.178">
-66.013 16.003 -9.22 3.018 0.091
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="13" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6460.016" EndDistance="6480.001" A="-7.8141338E11" B="2.41176976E8" C="-18609.156" Error="0.0049"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6501.0" A="-4.04954415E11" B="1.24985928E8" C="-9643.798" Error="0.00218"/>
<QuasiParabolic ID="2" StartDistance="6501.0" EndDistance="6522.0" A="0.0" B="1056.8036" C="-0.08510777" Error="0.00459"/>
<QuasiParabolic ID="3" StartDistance="6522.0" EndDistance="6524.0" A="-1.65495872E12" B="5.07215552E8" C="-38863.06" Error="0.0193"/>
<QuasiParabolic ID="4" StartDistance="6524.0" EndDistance="6537.0" A="2.02497851E11" B="-6.2207068E7" C="4777.548" Error="0.0184"/>
<QuasiParabolic ID="5" StartDistance="6537.0" EndDistance="6541.0" A="-3.54570633E11" B="1.08228448E8" C="-8258.67" Error="0.0018"/>
<QuasiParabolic ID="6" StartDistance="6541.0" EndDistance="6544.0" A="1.03862627E13" B="-3.17592781E9" C="242785.23" Error="0.018"/>
<QuasiParabolic ID="7" StartDistance="6544.0" EndDistance="6547.0" A="3.19434156E12" B="-9.7790797E8" C="74843.61" Error="0.00994"/>
<QuasiParabolic ID="8" StartDistance="6547.0" EndDistance="6553.0" A="4.8707792E12" B="-1.49003187E9" C="113954.96" Error="0.0133"/>
<QuasiParabolic ID="9" StartDistance="6553.0" EndDistance="6558.0" A="1.82692054E13" B="-5.5792814E9" C="425968.5" Error="0.00326"/>
<QuasiParabolic ID="10" StartDistance="6558.0" EndDistance="6566.0" A="6.1885659E13" B="-1.88810363E10" C="1440131.0" Error="0.0184"/>
<QuasiParabolic ID="11" StartDistance="6566.0" EndDistance="6580.0" A="-2.76465451E13" B="8.3904241E9" C="-636587.0" Error="0.00543"/>
<QuasiParabolic ID="12" StartDistance="6580.0" EndDistance="6599.121" A="-1.45123799E13" B="4.3982766E9" C="-333232.34" Error="0.00283"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="63.0" Depth="0.144"/>
<TopsideChapman PeakHeight="229.121" PeakDensity="183901.98" PeakScaleHeight="22.586" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
