<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-08 -098 06:25:00.000"
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="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: 100%</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.08 (098) 06:25:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.97" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202609804080625001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.825" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.230" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="9.126" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.375" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.375" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.200" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="302.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="302.500" 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="0.125" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.700" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="342.433" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.375" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.375" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="295.367" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="262.797" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.217" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="46.537" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.050" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="24.736" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="46.220" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.200" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="19">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
302.500 305.000 307.500 307.500 310.000 312.500 317.500 320.000 322.500 327.500 327.500 332.500 337.060 342.433 348.858 356.679 366.405 378.828 395.251
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
63 0 66 63 66 63 66 66 66 63 63 66 63 66 60 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="566">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 145.79634 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 181.59267 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 217.389 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 295.367 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0 600.0 601.0 602.0 603.0 604.0 605.0 606.0 607.0 608.0 609.0 610.0 611.0 612.0 613.0 614.0 615.0 616.0 617.0 618.0 619.0 620.0 621.0 622.0 623.0 624.0 625.0 626.0 627.0 628.0 629.0 630.0 631.0 632.0 633.0 634.0 635.0 636.0 637.0 638.0 639.0 640.0 641.0 642.0 643.0 644.0 645.0 646.0 647.0 648.0 649.0 650.0 651.0 652.0 653.0 654.0
</AltitudeList>
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0.31790954 0.32221165 0.32651377 0.33081588 0.335118 0.33942014 0.34372225 0.34802437 0.35232648 0.354 0.3653019 0.38483265 0.40560922 0.4275748 0.45066708 0.4748004 0.49990773 0.5259132 0.5527635 0.5804054 0.6087899 0.6378977 0.6677035 0.69819355 0.72935605 0.76118916 0.79370385 0.8268958 0.86077625 0.89534485 0.930619 0.9665997 1.0033077 1.0407292 1.0788862 1.1177725 1.1573819 1.1977199 1.2387768 1.2805284 1.3229604 1.3660487 1.4097543 1.4540454 1.4988751 1.5441915 1.5899235 1.6360015 1.6823651 1.7289084 1.7755545 1.8222091 1.8687559 1.9151119 1.9611576 2.0067909 2.0518987 2.0963776 2.1401267 2.1830513 2.2250538 2.2660384 2.3059373 2.3446674 2.3821568 2.4183419 2.4531775 2.4866061 2.5185885 2.549082 2.578065 2.6055028 2.631376 2.6556647 2.678356 2.6994343 2.718893 2.7367253 2.7529266 2.7674873 2.7804122 2.7916954 2.8013346 2.8093324 2.815686 2.820397 2.8234649 2.8248894 2.825 2.8248203 2.8238142 2.821944 2.819233 2.815704 2.8113816 2.8062885 2.8004484 2.793885 2.7866216 2.7786815 2.7700882 2.7608645 2.7510333 2.7406168 2.7296379 2.7181184 2.70608 2.693544 2.6805317 2.6670637 2.6531606 2.638842 2.624128 2.6090379 2.5935898 2.5778027 2.5616944 2.5452824 2.5285842 2.5116162 2.4943948 2.4769359 2.459255 2.4413671 2.423287 2.4050286 2.3866057 2.368032 2.3493202 2.330483 2.3115325 2.2924805 2.2733383 2.254117 2.2348273 2.2154794 2.1960833 2.1766481 2.1571836 2.1376987 2.1182013 2.0987 2.079203 2.0597172 2.04025 2.0208092 2.0014005 1.9820307 1.9627062 1.9434325 1.9242152 1.9050598 1.8859715 1.866955 1.8480151 1.829156 1.8103821 1.7916974 1.7731055 1.7546101 1.7362146 1.7179222 1.699736 1.6816587 1.6636932 1.6458418 1.6281071 1.610491 1.592996 1.5756236 1.5583758 1.5412544 1.5242608 1.5073962 1.4906623 1.47406 1.4575906 1.4412549 1.4250538 1.4089881 1.3930584 1.3772656 1.3616098 1.3460917 1.3307116 1.3154697 1.3003663 1.2854015 1.2705753 1.2558877 1.2413388 1.2269285 1.2126565 1.1985226 1.1845264 1.1706679 1.1569465 1.1433619 1.1299137 1.1166013 1.1034242 1.0903819 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<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="2.825" PeakHeight="295.367" Num="5" zHalfNm="262.797" Error="0.889">
-79.464 2.329 -1.409 0.937 -0.371
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="9" 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="6515.796" A="-1.18644417E11" B="3.6618648E7" C="-2825.3877" Error="0.00174"/>
<QuasiParabolic ID="2" StartDistance="6515.796" EndDistance="6551.593" A="0.0" B="-1107.632" C="0.21003093" Error="0.0242"/>
<QuasiParabolic ID="3" StartDistance="6551.593" EndDistance="6582.0" A="5.0725376E10" B="-1.554624E7" C="1191.1698" Error="0.0242"/>
<QuasiParabolic ID="4" StartDistance="6582.0" EndDistance="6585.0" A="-2.92188488E11" B="8.8651232E7" C="-6724.1655" Error="0.00219"/>
<QuasiParabolic ID="5" StartDistance="6585.0" EndDistance="6596.0" A="2.53438879E12" B="-7.698384E8" C="58461.08" Error="0.0248"/>
<QuasiParabolic ID="6" StartDistance="6596.0" EndDistance="6606.0" A="2.39720936E12" B="-7.2824371E8" C="55308.055" Error="0.0119"/>
<QuasiParabolic ID="7" StartDistance="6606.0" EndDistance="6641.0" A="4.25598019E12" B="-1.2909961E9" C="97902.086" Error="0.0348"/>
<QuasiParabolic ID="8" StartDistance="6641.0" EndDistance="6665.367" A="-8.4174192E12" B="2.52571802E9" C="-189457.81" Error="0.0123"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="107.389" Depth="0.154"/>
<TopsideChapman PeakHeight="295.367" PeakDensity="99015.195" PeakScaleHeight="24.736" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
