<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-14 -104 05:25:00.000"
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" >
2026.04.14 (104) 05:25:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.98" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202610404140525001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.175" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.758" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.931" 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="3.550" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="222.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="222.500" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.000" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="257.500" 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="234.263" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="214.066" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.377" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="28.824" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.824" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="15.593" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="26.040" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.100" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="33">
<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 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
222.500 222.500 222.500 225.000 225.000 226.250 227.500 227.500 227.500 230.000 230.000 232.500 232.500 235.000 235.000 237.500 237.500 240.000 242.500 242.500 245.000 247.500 250.000 252.500 255.000 257.500 261.793 267.016 273.504 281.783 292.713 307.809 330.014
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 0 78 78 72 0 72 72 69 69 72 69 66 69 69 69 57 63 48 51 60 0 0 0 69 69 93 0 0 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 4.6875 -1.5625 -1.5625 -1.5625 -1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="378">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 136.25 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 162.5 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 188.75 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 234.263 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0
</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 0.35332385 0.3524629 0.35123456 0.3496469 0.3477836 0.34551057 0.34284618 0.3398121 0.3363646 0.33256927 0.32832938 0.32366115 0.31855893 0.31297255 0.3068771 0.30027556 0.29307804 0.2853064 0.27685073 0.26765716 0.25764734 0.24675402 0.23483722 0.22173925 0.20734549 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 0.20293333 0.2088 0.21466666 0.22053333 0.2264 0.23226666 0.23813333 0.244 0.24986666 0.25573334 0.2616 0.26746666 0.27333334 0.2792 0.28506666 0.29093334 0.2968 0.30266666 0.30853334 0.3144 0.32026666 0.32613334 0.332 0.33786666 0.34373334 0.3496 0.354 0.3622808 0.39820373 0.43816975 0.48151737 0.5276205 0.576045 0.62661743 0.6793069 0.7342296 0.79157484 0.85162777 0.91471434 0.98117507 1.0514561 1.1259499 1.205131 1.2893982 1.3791093 1.4744447 1.5753582 1.6813647 1.7915139 1.9043063 2.0177333 2.1296883 2.2380857 2.3412755 2.438138 2.5280645 2.6108267 2.6864963 2.7553413 2.8176727 2.8738868 2.9243267 2.9693618 3.0092933 3.044414 3.0749683 3.1011667 3.1231852 3.14118 3.155266 3.1655354 3.1720574 3.1748724 3.175 3.1743143 3.1712425 3.1658003 3.1580935 3.148227 3.1363065 3.1224375 3.106724 3.089269 3.0701735 3.0495374 3.027458 3.0040302 2.979347 2.953498 2.9265707 2.898649 2.8698149 2.8401465 2.8097196 2.7786062 2.7468762 2.7145958 2.6818287 2.648635 2.6150727 2.5811963 2.5470579 2.512707 2.47819 2.4435508 2.4088314 2.3740706 2.3393054 2.3045704 2.269898 2.2353182 2.2008598 2.1665492 2.1324105 2.098467 2.0647397 2.031248 1.9980104 1.965043 1.9323611 1.8999788 1.8679085 1.8361619 1.8047491 1.7736797 1.742962 1.7126032 1.68261 1.652988 1.623742 1.5948762 1.5663941 1.5382985 1.5105916 1.4832749 1.4563498 1.4298167 1.4036757 1.3779267 1.3525687 1.3276011 1.3030221 1.2788302 1.2550234 1.2315992 1.2085552 1.1858886 1.1635966 1.1416758 1.120123 1.0989347 1.0781071 1.0576366 1.0375193 1.0177512 0.99832827 0.9792462 0.9605009 0.94208807 0.9240033 0.9062423 0.8888006 0.8716738 0.85485744 0.838347 0.82213813 0.8062262 0.7906068 0.77527547 0.76022774 0.74545914 0.7309653 0.71674186 0.70278436 0.68908846 0.67564994 0.6624645 0.64952785 0.6368358 0.6243842 0.612169 0.60018617 0.5884315 0.57690114 0.5655911 0.55449754 0.54361665 0.53294456 0.5224776 0.5122121 0.5021444 0.49227086 0.48258802 0.47309238 0.46378052 0.45464906 0.44569466 0.43691406 0.42830402 0.4198614 0.41158304 0.4034659 0.39550692 0.38770318 0.38005173 0.37254968 0.36519423 0.3579826 0.35091206 0.34397992 0.33718356 0.33052036 0.3239878 0.31758338 0.3113046 0.3051491 0.29911453 0.2931985 0.28739876 0.28171304 0.27613917 0.27067497 0.26531833 0.26006716 0.2549194 0.24987309 0.2449262 0.24007684 0.23532307 0.23066308 0.226095 0.22161706 0.2172275 0.21292458 0.20870662 0.20457196 0.20051895 0.19654602 0.19265158 0.1888341 0.18509208 0.18142402 0.17782849 0.17430405 0.17084932 0.16746292 0.16414349 0.16088973 0.15770036 0.1545741 0.1515097 0.14850597 0.14556168 0.14267568 0.13984682 0.13707395 0.134356 0.13169187 0.12908052 0.12652087 0.12401192 0.12155267 0.11914214 0.116779365 0.1144634 0.11219332 0.10996822 0.107787214 0.105649434 0.10355401 0.10150012 0.09948693 0.09751365 0.09557948 0.093683645 0.091825396 0.09000398 0.088218674 0.08646876 0.08475354 0.08307233 0.081424445 0.07980923 0.07822605 0.07667427 0.07515325 0.073662385 0.07220109 0.07076877 0.06936486 0.06798878 0.066640005 0.06531797 0.06402215 0.06275204 0.061507117 0.060286883 0.059090853 0.05791854 0.056769483 0.05564322 0.05453929 0.05345726 0.052396692 0.05135716 0.05033825

</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="3.175" PeakHeight="234.263" Num="5" zHalfNm="214.066" Error="1.599">
-48.968 6.023 -4.019 1.959 -0.508
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="8" 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="6506.25" A="-2.20048884E11" B="6.791632E7" C="-5240.3315" Error="0.00141"/>
<QuasiParabolic ID="2" StartDistance="6506.25" EndDistance="6532.5" A="0.0" B="-2309.8088" C="0.39502648" Error="0.036"/>
<QuasiParabolic ID="3" StartDistance="6532.5" EndDistance="6556.0" A="1.04382366E11" B="-3.2033102E7" C="2457.6262" Error="0.036"/>
<QuasiParabolic ID="4" StartDistance="6556.0" EndDistance="6557.0" A="-3.21379395E12" B="9.8022323E8" C="-74743.13" Error="1.27E-10"/>
<QuasiParabolic ID="5" StartDistance="6557.0" EndDistance="6571.0" A="7.8815554E12" B="-2.40405299E9" C="183322.77" Error="0.0343"/>
<QuasiParabolic ID="6" StartDistance="6571.0" EndDistance="6584.0" A="2.7634023E13" B="-8.4160655E9" C="640788.3" Error="0.0172"/>
<QuasiParabolic ID="7" StartDistance="6584.0" EndDistance="6604.263" A="-2.33575169E13" B="7.0734669E9" C="-535512.7" Error="0.00397"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="78.75" Depth="0.154"/>
<TopsideChapman PeakHeight="234.263" PeakDensity="125069.79" PeakScaleHeight="15.593" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
