<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-13 -103 01:00:00.000"
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" >
2026.04.13 (103) 01:00:00</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">
FF202610304130100001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.600" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.723" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.403" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.450" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.450" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.025" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="217.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="217.500" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.425" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="266.192" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.450" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.450" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="237.832" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="213.118" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="4.278" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="35.193" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.288" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="19.309" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="28.840" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="4.350" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="47">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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" >
217.500 217.500 217.500 220.000 220.000 220.000 220.833 221.667 222.500 222.500 225.000 225.000 225.000 226.094 227.188 228.281 229.375 230.469 231.563 232.656 233.750 234.844 235.938 237.031 238.125 239.219 240.313 241.406 242.500 242.500 245.000 250.000 250.000 250.000 252.500 254.564 256.899 259.562 262.627 266.192 270.391 275.410 281.515 289.100 298.779 311.556 329.204
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
63 66 66 66 63 66 0 0 63 63 63 66 66 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 93 78 81 87 93 99 96 81 81 81 81 93 93 93 93 93 84 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 -10.9375 -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="444">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 135.08333 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 160.16667 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 185.25 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 237.832 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0
</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 0.353812 0.35324875 0.35231337 0.35101187 0.34927908 0.3471288 0.34465033 0.34171918 0.33843222 0.33468077 0.33043912 0.32582152 0.32063016 0.31500506 0.30879995 0.30202654 0.29470333 0.28661102 0.27785686 0.26831484 0.25787413 0.24648583 0.23391104 0.2201678 0.20492378 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 0.20511627 0.21125582 0.21739535 0.22353488 0.22967441 0.23581396 0.24195349 0.24809302 0.25423256 0.2603721 0.26651162 0.27265117 0.2787907 0.28493023 0.29106978 0.2972093 0.30334884 0.3094884 0.3156279 0.32176745 0.32790697 0.3340465 0.34018606 0.34632558 0.35246512 0.354 0.37214038 0.40106434 0.43636754 0.4784497 0.52654517 0.5789528 0.6340163 0.69070107 0.7485998 0.8076958 0.86819804 0.9304322 0.9947925 1.0617752 1.1318575 1.205654 1.2837837 1.366998 1.4560646 1.5518017 1.6549835 1.7661595 1.8853916 2.011758 2.1431584 2.276203 2.4068332 2.5314007 2.647431 2.7537546 2.850264 2.9374373 3.0160115 3.0868359 3.1506994 3.2083154 3.260324 3.3072565 3.349585 3.387696 3.421931 3.4525692 3.4798524 3.5039861 3.5251358 3.5434542 3.5590541 3.5720396 3.582489 3.5904663 3.59602 3.5991802 3.6 3.5999734 3.5987298 3.5956724 3.5908635 3.5843656 3.576242 3.5665557 3.5553699 3.542747 3.5287497 3.5134392 3.4968765 3.479122 3.4602349 3.440273 3.4192939 3.397353 3.374505 3.3508039 3.3263009 3.301047 3.275092 3.2484827 3.221266 3.1934872 3.165189 3.1364143 3.107203 3.0775948 3.0476267 3.0173357 2.986756 2.955922 2.924865 2.8936162 2.862205 2.8306596 2.7990072 2.7672734 2.7354825 2.7036583 2.6718228 2.6399975 2.608202 2.5764558 2.5447767 2.513182 2.4816878 2.4503093 2.4190612 2.3879566 2.3570087 2.326229 2.2956293 2.2652197 2.2350101 2.2050097 2.175227 2.14567 2.1163456 2.087261 2.0584223 2.0298352 2.0015051 1.9734364 1.9456336 1.9181006 1.8908409 1.8638576 1.8371534 1.8107307 1.7845914 1.7587376 1.7331704 1.7078911 1.6829007 1.6581995 1.6337883 1.6096671 1.5858357 1.5622941 1.5390419 1.5160782 1.4934025 1.4710137 1.4489107 1.4270924 1.4055574 1.3843042 1.3633311 1.3426366 1.3222188 1.3020759 1.2822057 1.2626064 1.2432758 1.2242117 1.2054118 1.1868738 1.1685954 1.1505742 1.1328076 1.1152934 1.0980288 1.0810114 1.0642387 1.0477078 1.0314164 1.0153618 0.9995412 0.98395216 0.96859187 0.95345765 0.9385469 0.9238569 0.909385 0.89512855 0.8810848 0.8672512 0.853625 0.84020364 0.8269844 0.81396466 0.8011419 0.7885135 0.77607685 0.76382935 0.7517685 0.7398918 0.7281967 0.7166807 0.7053414 0.69417626 0.6831829 0.67235893 0.6617019 0.65120953 0.6408794 0.6307093 0.62069684 0.6108398 0.60113585 0.59158295 0.5821788 0.57292116 0.56380796 0.5548371 0.54600644 0.53731394 0.5287575 0.5203352 0.5120449 0.5038848 0.49585277 0.48794702 0.4801656 0.4725066 0.46496826 0.4575487 0.45024613 0.44305876 0.43598485 0.42902264 0.42217046 0.4154266 0.40878946 0.40225732 0.3958286 0.38950172 0.3832751 0.37714717 0.37111646 0.36518142 0.35934058 0.35359246 0.34793565 0.34236872 0.33689028 0.33149895 0.32619336 0.32097214 0.31583405 0.31077772 0.30580193 0.30090538 0.29608682 0.29134503 0.28667885 0.28208703 0.27756843 0.27312192 0.26874632 0.26444054 0.26020348 0.25603405 0.2519312 0.24789384 0.24392097 0.24001154 0.23616458 0.23237908 0.22865409 0.22498862 0.22138175 0.21783254 0.21434008 0.21090347 0.20752183 0.20419426 0.20091994 0.19769801 0.19452763 0.19140798 0.18833825 0.18531767 0.18234542 0.17942077 0.17654294 0.17371118 0.17092477 0.16818298 0.16548511 0.16283044 0.1602183 0.15764801 0.15511888 0.15263028 0.15018155 0.14777206 0.14540118 0.14306828 0.14077279 0.13851407 0.13629156 0.13410468 0.13195285 0.12983552 0.12775213 0.12570213 0.123685 0.12170022 0.11974726 0.11782561 0.11593478 0.11407427 0.11224359 0.11044227 0.10866984 0.10692584 0.105209805 0.103521295 0.10185987 0.10022509 0.09861653 0.09703378 0.09547641 0.093944035 0.09243623 0.09095262 0.08949281 0.08805642 0.08664308 0.085252404 0.083884045 0.08253764 0.08121284 0.0799093 0.07862667 0.07736462 0.07612282 0.07490095 0.073698685 0.07251571 0.07135172 0.07020641 0.06907947 0.067970626 0.06687957 0.06580603 0.06474971 0.06371035 0.062687665 0.06168139 0.060691267 0.059717037 0.058758438 0.057815228 0.056887154 0.055973973 0.05507545 0.054191347 0.053321436 0.052465487 0.051623277 0.050794583

</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="237.832" Num="5" zHalfNm="213.118" Error="1.463">
-59.613 12.011 -7.359 3.686 -1.307
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="14" 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="6505.083" A="-2.40913678E11" B="7.4356072E7" C="-5737.226" Error="0.00142"/>
<QuasiParabolic ID="2" StartDistance="6505.083" EndDistance="6530.167" A="0.0" B="-344.5042" C="0.09297217" Error="0.00541"/>
<QuasiParabolic ID="3" StartDistance="6530.167" EndDistance="6532.0" A="1.88637695E12" B="-5.7775936E8" C="44239.06" Error="0.0191"/>
<QuasiParabolic ID="4" StartDistance="6532.0" EndDistance="6534.0" A="-8.7200163E11" B="2.6681464E8" C="-20409.898" Error="0.0188"/>
<QuasiParabolic ID="5" StartDistance="6534.0" EndDistance="6551.0" A="1.13638343E11" B="-3.4881108E7" C="2676.7056" Error="0.0189"/>
<QuasiParabolic ID="6" StartDistance="6551.0" EndDistance="6552.0" A="-6.4460613E11" B="1.96608592E8" C="-14991.566" Error="1.69E-11"/>
<QuasiParabolic ID="7" StartDistance="6552.0" EndDistance="6555.0" A="8.1643255E11" B="-2.4937392E8" C="19042.508" Error="0.00598"/>
<QuasiParabolic ID="8" StartDistance="6555.0" EndDistance="6563.0" A="8.6397844E12" B="-2.63636147E9" C="201116.31" Error="0.0186"/>
<QuasiParabolic ID="9" StartDistance="6563.0" EndDistance="6568.0" A="8.1992561E12" B="-2.50211533E9" C="190888.83" Error="0.00586"/>
<QuasiParabolic ID="10" StartDistance="6568.0" EndDistance="6573.0" A="1.89386604E13" B="-5.7723361E9" C="439839.84" Error="0.0025"/>
<QuasiParabolic ID="11" StartDistance="6573.0" EndDistance="6583.0" A="4.1735053E13" B="-1.27087094E10" C="967481.25" Error="0.015"/>
<QuasiParabolic ID="12" StartDistance="6583.0" EndDistance="6592.0" A="-3.9748794E13" B="1.20471306E10" C="-912804.4" Error="0.00919"/>
<QuasiParabolic ID="13" StartDistance="6592.0" EndDistance="6607.832" A="-1.73015386E13" B="5.2366761E9" C="-396234.72" Error="0.0042"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="75.25" Depth="0.154"/>
<TopsideChapman PeakHeight="237.832" PeakDensity="160794.05" PeakScaleHeight="19.309" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
