<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-15 -105 07:00:00.000"
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" >
2026.04.15 (105) 07:00:00</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">
FF202610504150700001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.250" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.455" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.230" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.475" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.475" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.525" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="245.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="245.000" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.975" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="282.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.475" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.475" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="268.229" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="239.943" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.995" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="40.376" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.210" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="22.008" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="35.460" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.400" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="32">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
245.000 245.000 247.500 247.500 250.000 250.000 252.500 252.500 253.750 255.000 257.500 260.000 260.000 262.500 265.357 268.214 271.071 273.929 276.786 279.643 282.500 287.500 292.500 297.500 302.500 312.500 323.750 332.970 342.953 353.797 365.621 378.561
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 69 72 69 69 72 69 69 0 66 69 69 69 69 0 0 0 0 0 0 69 0 0 0 81 81 0 102 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="508">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 141.5 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 204.5 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 268.229 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0
</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 0.35354906 0.3529118 0.35205317 0.35097662 0.34968653 0.34811512 0.3462709 0.3442354 0.34187606 0.33927825 0.33638793 0.33322465 0.32980946 0.32603815 0.32200715 0.31768805 0.31300464 0.30795586 0.3025528 0.29676917 0.29057935 0.28398937 0.27689454 0.26927269 0.26112098 0.25231692 0.24289067 0.23271252 0.2217551 0.20985778 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 0.2048889 0.20977777 0.21466666 0.21955556 0.22444445 0.22933333 0.23422222 0.23911111 0.244 0.2488889 0.25377777 0.25866666 0.26355556 0.26844445 0.27333334 0.27822223 0.28311113 0.288 0.29288888 0.29777777 0.30266666 0.30755556 0.31244445 0.31733334 0.32222223 0.32711112 0.332 0.33688888 0.34177777 0.34666666 0.35155556 0.354 0.3644729 0.38746187 0.41321602 0.44163322 0.47242793 0.5052425 0.5396902 0.5754787 0.6123913 0.65030366 0.6891785 0.7290204 0.7698917 0.81188846 0.8551086 0.8996913 0.945793 0.9935746 1.0432403 1.0949613 1.1489885 1.2055404 1.2648596 1.3272208 1.3928528 1.4619828 1.5348011 1.6113669 1.6916283 1.77533 1.8619164 1.9505991 2.040278 2.1297112 2.21761 2.3028338 2.3844476 2.4618027 2.5345657 2.6025655 2.6658707 2.724608 2.7789862 2.8292527 2.875651 2.9184232 2.9578059 2.9940002 3.0272112 3.0576162 3.085363 3.1106002 3.133445 3.154008 3.1723871 3.1886687 3.2029197 3.215204 3.2255745 3.234075 3.240739 3.245595 3.2486622 3.2499535 3.25 3.2496133 3.2479794 3.2451017 3.241018 3.2357671 3.229387 3.2219167 3.213394 3.2038577 3.1933455 3.1818955 3.1695452 3.1563313 3.1422908 3.1274595 3.1118731 3.0955667 3.0785747 3.0609305 3.0426674 3.0238175 3.004413 2.984484 2.9640613 2.9431736 2.9218502 2.9001188 2.8780062 2.8555388 2.8327422 2.809641 2.7862592 2.7626202 2.738746 2.7146587 2.690379 2.665927 2.6413224 2.6165838 2.5917296 2.5667768 2.541742 2.5166416 2.4914908 2.4663045 2.4410965 2.4158807 2.39067 2.3654766 2.3403125 2.315189 2.2901165 2.265106 2.2401664 2.2153075 2.190538 2.1658661 2.1413 2.1168468 2.092514 2.068308 2.0442355 2.020302 1.9965134 1.9728748 1.9493911 1.926067 1.9029067 1.8799143 1.8570935 1.8344476 1.81198 1.7896936 1.767591 1.7456747 1.723947 1.70241 1.6810653 1.6599147 1.6389598 1.6182015 1.5976412 1.5772798 1.5571179 1.5371565 1.5173957 1.4978362 1.4784781 1.4593214 1.4403663 1.4216126 1.4030601 1.3847085 1.3665574 1.3486062 1.3308547 1.3133017 1.2959468 1.2787892 1.261828 1.2450621 1.2284907 1.2121127 1.195927 1.1799325 1.1641278 1.148512 1.1330836 1.1178412 1.1027838 1.0879097 1.0732176 1.058706 1.0443735 1.0302187 1.01624 1.0024358 0.9888047 0.975345 0.9620553 0.9489339 0.93597925 0.9231897 0.91056365 0.89809954 0.8857957 0.87365055 0.8616624 0.8498297 0.8381507 0.82662386 0.81524754 0.80402005 0.79293984 0.7820053 0.7712148 0.7605666 0.7500593 0.73969114 0.7294606 0.7193661 0.70940596 0.69957876 0.6898829 0.68031675 0.67087877 0.6615675 0.6523814 0.643319 0.6343787 0.62555903 0.6168586 0.60827583 0.59980935 0.5914577 0.5832194 0.5750931 0.56707734 0.5591708 0.551372 0.5436796 0.5360923 0.52860874 0.5212276 0.5139475 0.5067672 0.4996854 0.49270082 0.4858122 0.4790183 0.47231784 0.4657097 0.45919254 0.45276526 0.44642663 0.44017553 0.43401074 0.4279312 0.42193568 0.4160231 0.4101924 0.40444246 0.3987722 0.39318055 0.38766646 0.38222888 0.37686682 0.3715792 0.36636508 0.36122343 0.35615328 0.35115367 0.34622365 0.34136227 0.33656856 0.33184168 0.32718065 0.32258463 0.31805268 0.31358397 0.3091776 0.30483276 0.30054858 0.29632422 0.29215887 0.28805172 0.284002 0.28000888 0.2760716 0.2721894 0.2683615 0.2645872 0.2608657 0.25719628 0.25357828 0.2500109 0.24649352 0.2430254 0.2396059 0.2362343 0.23290998 0.22963226 0.2264005 0.22321405 0.2200723 0.21697463 0.21392041 0.21090905 0.20793995 0.20501252 0.20212619 0.19928038 0.19647452 0.19370808 0.19098046 0.18829118 0.18563966 0.1830254 0.18044788 0.17790656 0.17540096 0.17293057 0.1704949 0.16809347 0.1657258 0.16339141 0.16108985 0.15882064 0.15658335 0.15437752 0.15220271 0.1500585 0.14794445 0.14586012 0.14380513 0.14177905 0.13978148 0.137812 0.13587023 0.1339558 0.1320683 0.13020737 0.12837264 0.12656373 0.124780275 0.12302193 0.12128833 0.11957914 0.11789401 0.116232604 0.11459459 0.11297964 0.11138743 0.10981764 0.10826995 0.10674406 0.10523965 0.103756435 0.1022941 0.10085237 0.09943094 0.09802953 0.096647866 0.095285654 0.093942635 0.09261853 0.09131308 0.09002602 0.08875709 0.08750603 0.086272605 0.08505655 0.08385763 0.082675606 0.08151023 0.08036127 0.079228505 0.07811169 0.077010624 0.07592507 0.074854806 0.073799625 0.072759315 0.07173367 0.07072247 0.06972552 0.06874262 0.067773566 0.06681818 0.065876245 0.06494759 0.064032026 0.06312936 0.062239416 0.061362017 0.060496982 0.059644137 0.058803316 0.057974342 0.05715705 0.05635128 0.055556867 0.05477365 0.054001477 0.05324018 0.05248962 0.051749635 0.051020082 0.05030081

</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="3.25" PeakHeight="268.229" Num="5" zHalfNm="239.943" Error="3.311">
-68.991 9.727 -6.912 3.521 -1.074
</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="6511.5" A="-1.53036653E11" B="4.7233536E7" C="-3644.4375" Error="0.00157"/>
<QuasiParabolic ID="2" StartDistance="6511.5" EndDistance="6543.0" A="0.0" B="-647.49347" C="0.13946322" Error="0.0126"/>
<QuasiParabolic ID="3" StartDistance="6543.0" EndDistance="6570.0" A="5.4670377E10" B="-1.67879E7" C="1288.7993" Error="0.0126"/>
<QuasiParabolic ID="4" StartDistance="6570.0" EndDistance="6572.0" A="-9.8491302E11" B="2.9967584E8" C="-22795.2" Error="0.00306"/>
<QuasiParabolic ID="5" StartDistance="6572.0" EndDistance="6584.0" A="3.75990465E12" B="-1.14427354E9" C="87060.96" Error="0.0299"/>
<QuasiParabolic ID="6" StartDistance="6584.0" EndDistance="6596.0" A="5.8756243E12" B="-1.78695872E9" C="135867.55" Error="0.0263"/>
<QuasiParabolic ID="7" StartDistance="6596.0" EndDistance="6608.0" A="2.17090632E13" B="-6.5878799E9" C="499794.28" Error="0.00938"/>
<QuasiParabolic ID="8" StartDistance="6608.0" EndDistance="6638.229" A="-1.25814031E13" B="3.79059021E9" C="-285501.6" Error="0.0141"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="94.5" Depth="0.154"/>
<TopsideChapman PeakHeight="268.229" PeakDensity="131048.39" PeakScaleHeight="22.008" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
