<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-27 -147 21:40:00.000"
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="20.0">
<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" >
2026.05.27 (147) 21:40:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.22" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.99" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="75.82641" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202614705272140001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.675" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.727" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.696" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.975" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.975" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.025" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="227.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="227.500" 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="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.425" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="255.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.424" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.975" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.975" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="237.073" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="218.483" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="5.840" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="26.563" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.016" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.177" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="25.550" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.440" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="29">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 3.625 3.65 3.675
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
227.500 227.500 227.500 230.000 230.000 232.500 235.000 235.000 235.000 237.500 237.500 240.000 240.000 245.000 245.000 250.000 250.000 252.500 255.000 260.000 262.500 270.000 272.500 275.000 281.177 288.691 298.026 309.938 325.664
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
57 57 57 57 84 84 81 87 75 72 69 69 75 75 87 84 87 84 78 72 63 66 57 54 63 57 0 57 72
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
3.125 -3.125 -3.125 -3.125 -3.125 -3.125 3.125 -3.125 -3.125 -3.125 3.125 3.125 -3.125 -3.125 -3.125 -3.125 -3.125 3.125 3.125 -3.125 -3.125 -3.125 -3.125 3.125 3.125 -3.125 -3.125 3.125 -3.125
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="367">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
92.359 93.0 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 137.41667 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 164.83333 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 192.25 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 237.073 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.22277734 0.2539052 0.28024372 0.30278462 0.3222942 0.3393093 0.35421443 0.36727792 0.37870267 0.3886391 0.39720306 0.40447965 0.41053864 0.41543302 0.41920146 0.4218737 0.42346945 0.424 0.4238086 0.4231256 0.42206335 0.42057243 0.41866073 0.41628516 0.41343373 0.4101249 0.40640563 0.4021475 0.39745903 0.39220437 0.38633877 0.38001525 0.37311527 0.36554992 0.35726434 0.3483184 0.33857778 0.32805586 0.3165196 0.3039175 0.2901413 0.27495638 0.25823027 0.23960683 0.21883644 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 0.2013617 0.20953192 0.21770212 0.22587234 0.23404256 0.24221277 0.250383 0.25855318 0.2667234 0.2748936 0.28306383 0.29123405 0.29940426 0.30757448 0.31574467 0.3239149 0.3320851 0.34025532 0.34842554 0.35659575 0.36476597 0.37293616 0.38110638 0.3892766 0.3974468 0.40561703 0.41378725 0.42195743 0.424 0.4570192 0.5028441 0.550727 0.60077137 0.65308666 0.7078547 0.76526344 0.82552403 0.88887376 0.95554465 1.0257967 1.0998932 1.178047 1.2605155 1.3474629 1.4390393 1.5352863 1.6361241 1.7413408 1.8505399 1.9631488 2.0783415 2.1951869 2.3125358 2.4292483 2.5441177 2.656074 2.7640986 2.8673978 2.965329 3.0574055 3.143284 3.2227623 3.2957156 3.3620973 3.421922 3.4752283 3.5220742 3.5625458 3.5967028 3.624621 3.6463666 3.6619835 3.6715155 3.6749837 3.675 3.6734865 3.6685588 3.6603684 3.649078 3.6348495 3.617846 3.5982277 3.576154 3.551781 3.5252616 3.4967456 3.4663787 3.4343019 3.400652 3.365561 3.3291562 3.2915595 3.252888 3.2132535 3.172763 3.1315181 3.0896156 3.0471473 3.0041995 2.960855 2.9171908 2.87328 2.829191 2.7849882 2.7407317 2.696478 2.6522791 2.6081843 2.564239 2.5204852 2.4769614 2.433704 2.3907456 2.3481169 2.3058453 2.263956 2.2224724 2.1814148 2.1408024 2.1006515 2.0609772 2.0217927 1.9831097 1.9449383 1.9072871 1.8701637 1.833574 1.7975233 1.7620152 1.7270528 1.692638 1.6587721 1.6254553 1.5926872 1.5604669 1.5287925 1.4976618 1.467072 1.43702 1.4075017 1.3785133 1.3500502 1.3221076 1.2946804 1.267763 1.24135 1.2154355 1.1900135 1.1650777 1.1406218 1.1166394 1.0931238 1.0700685 1.0474666 1.0253115 1.0035961 0.9823137 0.96145743 0.9410203 0.9209955 0.90137607 0.8821552 0.86332595 0.8448816 0.8268154 0.8091206 0.7917905 0.7748185 0.758198 0.74192256 0.72598577 0.71038127 0.69510275 0.68014395 0.6654989 0.65116143 0.6371256 0.62338555 0.60993546 0.59676963 0.58388245 0.5712683 0.5589219 0.5468377 0.5350105 0.5234351 0.5121065 0.5010195 0.4901692 0.47955087 0.46915966 0.45899093 0.44904009 0.43930262 0.4297741 0.4204502 0.41132665 0.40239924 0.3936639 0.3851166 0.37675342 0.36857045 0.3605639 0.35273007 0.3450653 0.33756602 0.33022872 0.32304996 0.3160264 0.3091547 0.30243167 0.29585412 0.28941894 0.2831231 0.27696365 0.27093765 0.26504222 0.2592746 0.25363204 0.24811184 0.24271141 0.23742814 0.23225954 0.22720313 0.22225648 0.21741726 0.21268313 0.20805185 0.20352116 0.19908893 0.19475302 0.19051135 0.18636186 0.18230261 0.17833161 0.17444696 0.17064679 0.16692927 0.16329263 0.1597351 0.15625496 0.15285055 0.14952022 0.14626236 0.14307542 0.13995783 0.1369081 0.13392477 0.13100637 0.12815152 0.12535882 0.12262694 0.11995454 0.117340334 0.114783056 0.11228147 0.10983437 0.10744057 0.10509891 0.10280826 0.1005675 0.09837555 0.096231356 0.094133876 0.09208208 0.090075 0.08811164 0.086191066 0.08431233 0.08247453 0.08067678 0.078918196 0.07719794 0.075515166 0.073869064 0.07225884 0.070683695 0.069142886 0.06763565 0.06616126 0.06471901 0.06330819 0.061928116 0.06057812 0.05925755 0.05796576 0.05670213 0.055466037 0.054256886 0.05307409 0.05191708 0.05078529

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.424" PeakHeight="110.0" Num="3" Error="0.0">
-20.814 3.435 -0.262
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.424" EndFrequency="3.675" PeakHeight="237.073" Num="5" zHalfNm="218.483" Error="1.622">
-45.93 2.243 -1.934 0.951 -0.153
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="10" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6460.0127" EndDistance="6480.001" A="-7.8877347E11" B="2.43448592E8" C="-18784.434" Error="0.0051"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6507.417" A="-3.30910302E11" B="1.02132808E8" C="-7880.438" Error="0.00413"/>
<QuasiParabolic ID="2" StartDistance="6507.417" EndDistance="6534.833" A="0.0" B="-2049.6877" C="0.3548644" Error="0.0302"/>
<QuasiParabolic ID="3" StartDistance="6534.833" EndDistance="6562.0" A="1.60555516E11" B="-4.9254764E7" C="3777.579" Error="0.0302"/>
<QuasiParabolic ID="4" StartDistance="6562.0" EndDistance="6564.0" A="2.71848697E13" B="-8.2858639E9" C="631376.56" Error="0.0354"/>
<QuasiParabolic ID="5" StartDistance="6564.0" EndDistance="6565.0" A="-2.20642704E13" B="6.7199683E9" C="-511663.66" Error="2.3E-10"/>
<QuasiParabolic ID="6" StartDistance="6565.0" EndDistance="6569.0" A="1.16634293E13" B="-3.55503565E9" C="270895.66" Error="0.0234"/>
<QuasiParabolic ID="7" StartDistance="6569.0" EndDistance="6578.0" A="1.62528368E13" B="-4.9523282E9" C="377250.7" Error="0.04"/>
<QuasiParabolic ID="8" StartDistance="6578.0" EndDistance="6591.0" A="3.08374143E13" B="-9.3866783E9" C="714309.9" Error="0.0383"/>
<QuasiParabolic ID="9" StartDistance="6591.0" EndDistance="6607.073" A="-3.9620323E13" B="1.19933051E10" C="-907597.6" Error="0.0138"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="82.25" Depth="0.224"/>
<TopsideChapman PeakHeight="237.073" PeakDensity="167563.58" PeakScaleHeight="14.177" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
