<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-08 -098 04:25:00.000"
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) 04:25:00</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">
FF202609804080425001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.600" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.805" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.698" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.200" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.200" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.025" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.350" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="245.821" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.200" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.200" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="226.071" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="197.832" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.402" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="39.927" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.454" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="22.102" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="30.720" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="5.500" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="57">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
200.000 200.000 201.250 202.500 202.500 202.500 202.500 205.000 205.000 205.000 205.000 205.000 205.000 207.500 207.500 207.500 207.500 207.500 210.000 210.000 210.000 212.500 212.500 212.500 215.000 215.000 215.000 215.000 217.500 217.500 217.500 220.000 220.000 222.500 222.500 225.000 225.000 227.500 230.000 230.000 230.000 235.000 235.000 237.500 239.966 242.722 245.821 249.332 253.342 257.966 263.357 269.724 277.357 286.675 298.306 313.234 333.091
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
72 69 0 57 57 54 57 60 0 81 81 72 69 69 75 75 75 75 75 75 75 72 75 63 60 51 54 60 57 0 66 72 72 84 84 96 96 99 96 99 96 96 96 96 96 96 96 108 108 93 93 93 90 78 75 72 66
</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 -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="472">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 226.071 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0
</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 0.3537932 0.35311493 0.35197127 0.35037374 0.3483392 0.3457767 0.34277558 0.3392647 0.33529535 0.33075 0.32564294 0.31998846 0.3136597 0.3067674 0.2990953 0.29073656 0.2815179 0.271331 0.26021352 0.24793555 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.233 0.2387619 0.24452381 0.2502857 0.2560476 0.26180953 0.26757142 0.27333334 0.27909523 0.28485715 0.29061905 0.29638097 0.30214286 0.30790475 0.31366667 0.31942856 0.32519048 0.33095238 0.3367143 0.3424762 0.34823808 0.354 0.38961828 0.4290892 0.47125003 0.5152433 0.56065375 0.6073899 0.6555707 0.705475 0.75744843 0.81195855 0.8695287 0.930816 0.9966434 1.0680276 1.1462824 1.2331637 1.3309091 1.4425528 1.5717311 1.7219881 1.8937247 2.0789948 2.2611134 2.425655 2.5679324 2.6896021 2.7942057 2.8850198 2.964661 3.0351303 3.0979645 3.15433 3.2051425 3.2511137 3.292808 3.3306913 3.365144 3.3964684 3.4249284 3.4507394 3.4740841 3.4951189 3.5139678 3.5307474 3.5455518 3.5584576 3.5695343 3.5788352 3.586408 3.5922863 3.5964992 3.5990648 3.5999928 3.6 3.5993843 3.597371 3.5939977 3.5893064 3.5833387 3.576137 3.567743 3.5581992 3.547547 3.5358284 3.5230842 3.5093558 3.4946835 3.4791071 3.4626665 3.4454 3.4273462 3.4085424 3.3890254 3.3688316 3.347996 3.326553 3.3045368 3.28198 3.2589147 3.2353723 3.211383 3.1869764 3.1621814 3.1370256 3.1115363 3.0857394 3.0596604 3.033324 3.0067534 2.979972 2.9530013 2.925863 2.8985777 2.871165 2.843644 2.8160324 2.7883487 2.7606091 2.7328298 2.7050266 2.6772141 2.6494067 2.6216176 2.5938601 2.5661464 2.5384884 2.5108972 2.4833837 2.455958 2.4286294 2.4014077 2.3743012 2.3473184 2.3204668 2.293754 2.2671869 2.240772 2.2145154 2.188423 2.1625 2.1367517 2.111183 2.0857978 2.0606005 2.0355952 2.0107849 1.9861732 1.961763 1.937557 1.9135578 1.8897675 1.8661883 1.8428218 1.81967 1.796734 1.7740152 1.7515146 1.7292331 1.7071714 1.6853303 1.6637099 1.6423107 1.6211329 1.6001762 1.579441 1.5589267 1.5386332 1.5185599 1.4987066 1.4790723 1.4596566 1.4404585 1.4214774 1.4027122 1.3841618 1.3658254 1.3477017 1.3297895 1.3120877 1.2945948 1.2773095 1.2602307 1.2433566 1.226686 1.2102172 1.1939489 1.1778793 1.162007 1.1463302 1.1308475 1.1155571 1.1004572 1.0855463 1.0708226 1.0562843 1.0419298 1.0277574 1.0137651 0.99995136 0.9863143 0.9728522 0.9595632 0.9464456 0.93349755 0.9207173 0.90810305 0.89565307 0.8833655 0.87123865 0.8592707 0.8474599 0.8358045 0.82430273 0.8129528 0.80175304 0.79070175 0.7797971 0.7690374 0.75842106 0.74794626 0.7376114 0.7274148 0.7173548 0.70742965 0.69763786 0.6879777 0.67844766 0.66904604 0.6597713 0.65062195 0.6415963 0.63269293 0.6239102 0.6152466 0.6067007 0.598271 0.589956 0.5817542 0.57366425 0.5656847 0.557814 0.5500509 0.542394 0.53484184 0.5273931 0.5200465 0.5128006 0.5056541 0.4986058 0.4916543 0.48479843 0.47803685 0.47136837 0.46479172 0.4583057 0.4519091 0.44560072 0.43937942 0.43324405 0.4271934 0.4212264 0.41534188 0.4095388 0.403816 0.39817244 0.39260703 0.38711876 0.38170654 0.37636933 0.37110618 0.36591607 0.36079797 0.35575095 0.350774 0.3458662 0.3410266 0.3362543 0.33154833 0.3269078 0.32233188 0.3178196 0.31337014 0.3089826 0.30465618 0.30039003 0.2961833 0.2920352 0.2879449 0.28391165 0.2799346 0.27601305 0.2721462 0.26833326 0.26457354 0.2608663 0.25721082 0.25360635 0.2500522 0.24654773 0.24309218 0.2396849 0.23632522 0.23301248 0.22974606 0.22652526 0.22334951 0.22021815 0.21713056 0.21408616 0.21108432 0.20812449 0.20520604 0.20232843 0.19949107 0.1966934 0.1939349 0.19121501 0.18853317 0.18588887 0.1832816 0.18071082 0.17817603 0.17567673 0.17321244 0.17078266 0.16838689 0.16602468 0.16369557 0.16139908 0.15913476 0.15690216 0.15470083 0.15253036 0.1503903 0.14828022 0.1461997 0.14414835 0.14212576 0.1401315 0.13816519 0.13622646 0.1343149 0.13243012 0.13057177 0.12873948 0.12693287 0.1251516 0.123395294 0.12166362 0.119956225 0.118272774 0.116612926 0.11497636 0.113362744 0.111771755 0.11020308 0.10865641 0.10713142 0.10562783 0.104145326 0.10268362 0.101242416 0.099821426 0.098420374 0.09703897 0.09567695 0.094334036 0.093009956 0.09170446 0.09041727 0.08914815 0.08789683 0.08666307 0.08544661 0.084247224 0.08306467 0.08189871 0.0807491 0.07961563 0.078498065 0.077396184 0.076309755 0.07523858 0.074182436 0.073141105 0.07211439 0.07110209 0.070103996 0.0691199 0.06814962 0.06719296 0.06624972 0.065319724 0.064402774 0.06349869 0.0626073 0.061728425 0.060861878 0.060007498 0.059165105 0.058334537 0.057515625 0.05670821 0.055912126 0.055127215 0.054353323 0.05359029 0.052837968 0.052096207 0.051364858 0.050643776

</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="3.6" PeakHeight="226.071" Num="5" zHalfNm="197.832" Error="1.209">
-64.572 19.07 -11.501 5.004 -1.072
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="11" 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="6501.0" A="-2.85457187E11" B="8.8104064E7" C="-6798.028" Error="0.00167"/>
<QuasiParabolic ID="2" StartDistance="6501.0" EndDistance="6522.0" A="0.0" B="-2923.3965" C="0.5040637" Error="0.0283"/>
<QuasiParabolic ID="3" StartDistance="6522.0" EndDistance="6530.0" A="3.37255694E11" B="-1.03469216E8" C="7936.079" Error="0.0349"/>
<QuasiParabolic ID="4" StartDistance="6530.0" EndDistance="6541.0" A="-9.333819E10" B="2.8412528E7" C="-2162.0637" Error="0.0141"/>
<QuasiParabolic ID="5" StartDistance="6541.0" EndDistance="6548.0" A="6.5674229E12" B="-2.00820608E9" C="153518.92" Error="0.033"/>
<QuasiParabolic ID="6" StartDistance="6548.0" EndDistance="6555.0" A="6.9653407E12" B="-2.12974477E9" C="162799.52" Error="0.0185"/>
<QuasiParabolic ID="7" StartDistance="6555.0" EndDistance="6560.0" A="2.81592967E13" B="-8.5962455E9" C="656049.0" Error="0.00908"/>
<QuasiParabolic ID="8" StartDistance="6560.0" EndDistance="6567.0" A="8.3496228E13" B="-2.54672609E10" C="1941949.6" Error="0.0332"/>
<QuasiParabolic ID="9" StartDistance="6567.0" EndDistance="6573.0" A="-8.9073411E13" B="2.70893507E10" C="-2059619.9" Error="0.0288"/>
<QuasiParabolic ID="10" StartDistance="6573.0" EndDistance="6596.071" A="-1.26528761E13" B="3.83648896E9" C="-290803.25" Error="0.0179"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="63.0" Depth="0.121"/>
<TopsideChapman PeakHeight="226.071" PeakDensity="160794.05" PeakScaleHeight="22.102" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
