<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-03-31 -090 06:50:00.000"
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" >
2026.03.31 (090) 06:50:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.18" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.97" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="82.25368" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202609003310650001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.150" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.754" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="15.581" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.050" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.050" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.550" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.875" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="252.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.050" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.050" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="235.592" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="216.128" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.218" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="27.812" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.340" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.929" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="25.530" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.880" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="45">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 3.625 3.65 3.675 3.7 3.725 3.75 3.775 3.8 3.825 3.85 3.875 3.9 3.925 3.95 3.975 4.0 4.025 4.05 4.075 4.1 4.125 4.15
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
222.500 222.500 222.500 223.750 225.000 225.000 225.000 225.000 227.500 227.500 227.500 227.500 230.000 230.000 230.000 232.500 235.000 235.000 235.000 235.000 235.000 235.000 240.000 240.000 242.500 242.500 242.500 245.000 245.000 246.667 248.333 250.000 250.000 252.500 260.000 262.500 262.500 265.000 270.000 275.000 277.500 285.000 305.000 310.000 340.374
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
96 93 93 0 96 84 84 108 108 96 90 90 93 96 96 105 99 87 90 84 87 111 105 96 90 81 84 78 75 0 0 102 105 108 99 96 102 105 108 105 102 99 99 99 96
</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 -7.8125 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="382">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 136.25 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 162.5 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 188.75 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 235.592 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0
</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 0.36371648 0.40514052 0.45016843 0.4983104 0.54922485 0.602781 0.6590182 0.71803933 0.7800687 0.84539914 0.91436684 0.9873508 1.0647931 1.1471888 1.2350358 1.3288862 1.4292927 1.5367328 1.6516534 1.7742338 1.904376 2.0415237 2.184596 2.3318756 2.481185 2.6300225 2.775953 2.9168675 3.051064 3.1774309 3.2953513 3.4045298 3.5049822 3.5969083 3.6805775 3.7563171 3.824486 3.8854008 3.9393897 3.9867268 4.0276747 4.062441 4.0912194 4.1141624 4.13139 4.1429915 4.1490316 4.15 4.149699 4.1464663 4.1398144 4.129899 4.1168776 4.1009073 4.0821457 4.0607467 4.0368648 4.01065 3.9822514 3.9518125 3.919475 3.885376 3.8496485 3.8124208 3.7738178 3.7339585 3.6929584 3.6509273 3.6079712 3.5641909 3.5196826 3.474538 3.4288447 3.3826847 3.3361368 3.289275 3.2421691 3.1948853 3.1474855 3.1000283 3.052568 3.005156 2.9578404 2.9106655 2.8636727 2.8169012 2.7703862 2.724161 2.6782563 2.6327 2.5875177 2.5427334 2.4983685 2.4544423 2.4109728 2.3679757 2.3254654 2.2834544 2.2419538 2.200974 2.160523 2.1206083 2.081236 2.042411 2.0041378 1.9664192 1.9292576 1.8926545 1.8566107 1.8211257 1.7861995 1.7518303 1.7180166 1.684756 1.6520456 1.6198823 1.5882623 1.5571817 1.5266361 1.4966209 1.4671311 1.4381616 1.4097068 1.3817614 1.3543195 1.3273749 1.3009219 1.2749542 1.2494653 1.224449 1.1998987 1.175808 1.1521701 1.1289786 1.1062268 1.083908 1.0620154 1.0405425 1.0194826 0.9988292 0.9785754 0.9587148 0.93924075 0.92014676 0.90142643 0.8830733 0.86508095 0.8474431 0.8301536 0.81320614 0.7965947 0.78031313 0.76435554 0.748716 0.73338866 0.71836776 0.7036477 0.6892227 0.67508745 0.66123635 0.64766407 0.6343654 0.621335 0.6085679 0.59605896 0.5838032 0.57179576 0.56003183 0.5485067 0.5372157 0.5261543 0.51531786 0.50470215 0.49430278 0.48411542 0.47413597 0.46436024 0.4547842 0.44540396 0.43621552 0.42721513 0.418399 0.40976346 0.40130487 0.3930197 0.3849045 0.37695578 0.36917025 0.36154458 0.35407555 0.34676003 0.33959487 0.33257705 0.32570356 0.3189715 0.31237802 0.30592024 0.29959548 0.29340094 0.28733402 0.28139216 0.27557272 0.26987326 0.26429132 0.2588245 0.25347042 0.24822682 0.2430914 0.23806196 0.23313634 0.2283124 0.22358805 0.21896125 0.21443002 0.20999236 0.20564638 0.20139018 0.1972219 0.19313978 0.18914202 0.18522687 0.18139265 0.17763768 0.17396036 0.17035905 0.16683221 0.1633783 0.15999581 0.15668328 0.15343925 0.15026234 0.14715113 0.14410429 0.14112046 0.13819839 0.13533676 0.13253434 0.1297899 0.12710227 0.12447025 0.12189269 0.11936848 0.11689651 0.1144757 0.112105 0.10978336 0.107509784 0.10528327 0.10310284 0.10096755 0.09887646 0.09682867 0.09482326 0.09285938 0.090936154 0.08905275 0.08720834 0.085402116 0.08363329 0.08190109 0.080204755 0.07854355 0.07691674 0.07532361 0.07376348 0.07223565 0.07073946 0.06927426 0.0678394 0.06643425 0.065058194 0.063710645 0.062390998 0.061098684 0.059833128 0.058593787 0.057380114 0.05619157 0.05502765 0.05388783 0.05277162 0.051678527 0.050608072

</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="4.15" PeakHeight="235.592" Num="5" zHalfNm="216.128" Error="1.493">
-49.723 5.137 -3.688 1.85 -0.418
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="12" 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="314.062" C="-0.008258193" Error="0.00453"/>
<QuasiParabolic ID="3" StartDistance="6532.5" EndDistance="6557.0" A="5.9211563E10" B="-1.8231384E7" C="1403.367" Error="0.00453"/>
<QuasiParabolic ID="4" StartDistance="6557.0" EndDistance="6558.0" A="-5.40512158E11" B="1.64694864E8" C="-12545.562" Error="1.54E-11"/>
<QuasiParabolic ID="5" StartDistance="6558.0" EndDistance="6560.0" A="1.64409912E13" B="-5.0141716E9" C="382305.5" Error="0.0137"/>
<QuasiParabolic ID="6" StartDistance="6560.0" EndDistance="6561.0" A="-1.79953631E11" B="5.3189568E7" C="-3926.3008" Error="0.0"/>
<QuasiParabolic ID="7" StartDistance="6561.0" EndDistance="6569.0" A="9.4719663E12" B="-2.88902042E9" C="220293.33" Error="0.0166"/>
<QuasiParabolic ID="8" StartDistance="6569.0" EndDistance="6574.0" A="2.39377989E13" B="-7.2932925E9" C="555524.9" Error="0.0035"/>
<QuasiParabolic ID="9" StartDistance="6574.0" EndDistance="6585.0" A="4.9773403E13" B="-1.51532268E10" C="1153329.4" Error="0.0105"/>
<QuasiParabolic ID="10" StartDistance="6585.0" EndDistance="6590.0" A="-1.97501638E13" B="5.9625103E9" C="-449991.53" Error="0.00125"/>
<QuasiParabolic ID="11" StartDistance="6590.0" EndDistance="6605.592" A="-4.3928984E13" B="1.33005445E10" C="-1006746.8" Error="3.62E-4"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="78.75" Depth="0.154"/>
<TopsideChapman PeakHeight="235.592" PeakDensity="213678.66" PeakScaleHeight="14.929" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
