<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-18 -138 00:55:00.000"
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" >
2026.05.18 (138) 00:55:00</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">
FF202613805180055001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.250" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.773" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.263" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.925" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.925" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.550" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="242.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="242.500" 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="3.050" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="253.573" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.925" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.925" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="242.214" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="225.569" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.625" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="23.823" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.719" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="12.839" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="22.240" 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="14">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
242.500 245.000 246.688 248.633 250.900 253.573 256.775 260.679 265.544 271.775 280.042 291.535 308.603 336.602
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 69 81 81 81 81 96 96 99 96 90 0 0 87
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="346">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 140.91667 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 171.83333 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 202.75 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 242.214 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0
</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 0.3538872 0.35347393 0.3529119 0.3519786 0.3509026 0.34953943 0.34789655 0.34598285 0.3438088 0.34138623 0.3386593 0.33571413 0.33243394 0.32884502 0.3249759 0.3207348 0.3162249 0.311316 0.3060709 0.30039963 0.29436976 0.2878726 0.28096467 0.27349284 0.26549044 0.25688842 0.24761072 0.23761433 0.22685163 0.21513027 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 0.2 0.2 0.2 0.2 0.20083019 0.20581132 0.21079245 0.21577358 0.22075471 0.22573584 0.23071699 0.23569812 0.24067925 0.24566038 0.2506415 0.25562266 0.2606038 0.26558492 0.27056605 0.27554718 0.2805283 0.28550944 0.29049057 0.2954717 0.30045283 0.30543396 0.3104151 0.31539622 0.32037735 0.32535848 0.3303396 0.33532074 0.3403019 0.34528303 0.35026416 0.354 0.36215296 0.39933285 0.44421163 0.49630424 0.5541106 0.61601 0.6809293 0.74837446 0.8182861 0.8908821 0.9665213 1.0456152 1.1286631 1.2161566 1.3086224 1.4065118 1.5101546 1.6196914 1.7348697 1.8549963 1.9787109 2.1040242 2.228561 2.3497882 2.4654465 2.573811 2.6737907 2.7648962 2.8470297 2.9203854 2.9852965 3.0421743 3.0914416 3.1334717 3.1686277 3.1972055 3.2194524 3.2355614 3.2456696 3.2498655 3.25 3.2488258 3.244038 3.2357402 3.2241254 3.2093875 3.1917193 3.1713114 3.1483512 3.1230228 3.0955052 3.065973 3.0345945 3.0015323 2.9669428 2.930976 2.893775 2.8554764 2.8162103 2.7760994 2.735261 2.6938043 2.6518333 2.609445 2.5667312 2.5237765 2.480661 2.4374585 2.3942382 2.3510637 2.3079941 2.2650838 2.2223825 2.1799364 2.1377876 2.095974 2.0545304 2.0134883 1.9728758 1.9327186 1.8930392 1.8538576 1.8151916 1.7770566 1.7394658 1.702431 1.6659614 1.6300651 1.5947484 1.5600164 1.5258725 1.4923192 1.4593579 1.4269886 1.3952106 1.3640224 1.3334217 1.3034052 1.2739693 1.2451096 1.2168212 1.1890987 1.1619365 1.1353282 1.1092674 1.0837471 1.0587606 1.0343002 1.0103586 0.986928 0.96400064 0.94156855 0.9196237 0.89815795 0.8771633 0.85663134 0.836554 0.816923 0.7977302 0.7789674 0.76062644 0.7426992 0.72517765 0.70805377 0.6913197 0.6749676 0.65898967 0.6433783 0.62812585 0.61322486 0.5986679 0.5844478 0.5705573 0.5569894 0.54373705 0.53079355 0.518152 0.5058059 0.4937487 0.48197404 0.4704756 0.4592473 0.448283 0.4375768 0.42712292 0.41691563 0.40694934 0.39721853 0.38771787 0.3784421 0.36938605 0.36054465 0.351913 0.34348622 0.3352596 0.32722846 0.3193883 0.31173468 0.30426323 0.2969697 0.28984997 0.28289995 0.27611566 0.2694932 0.26302877 0.2567187 0.25055933 0.24454708 0.23867851 0.23295024 0.22735894 0.22190134 0.21657433 0.21137479 0.20629969 0.2013461 0.1965111 0.19179192 0.1871858 0.18269001 0.17830196 0.17401908 0.16983886 0.16575886 0.16177669 0.15789002 0.15409657 0.15039411 0.14678048 0.14325354 0.13981122 0.13645151 0.13317245 0.12997209 0.12684853 0.12379998 0.120824605 0.117920674 0.11508647 0.112320326 0.10962061 0.106985725 0.10441413 0.101904295 0.09945475 0.09706405 0.09473078 0.09245356 0.09023105 0.08806195 0.08594496 0.08387883 0.081862345 0.07989433 0.07797359 0.076099016 0.07426949 0.07248393 0.07074128 0.06904052 0.06738063 0.065760635 0.064179584 0.06263653 0.061130565 0.0596608 0.058226362 0.056826405 0.055460103 0.054126643 0.05282524 0.051555116 0.05031553

</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="3.25" PeakHeight="242.214" Num="5" zHalfNm="225.569" Error="1.584">
-41.413 3.603 -2.536 1.438 -0.556
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="10" 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="6510.917" A="-1.58830494E11" B="4.902176E7" C="-3782.4177" Error="0.00166"/>
<QuasiParabolic ID="2" StartDistance="6510.917" EndDistance="6541.833" A="0.0" B="-676.1785" C="0.14387982" Error="0.0129"/>
<QuasiParabolic ID="3" StartDistance="6541.833" EndDistance="6572.0" A="5.4247166E10" B="-1.6662973E7" C="1279.5938" Error="0.0129"/>
<QuasiParabolic ID="4" StartDistance="6572.0" EndDistance="6575.0" A="1.32607178E13" B="-4.03567411E9" C="307047.34" Error="0.0128"/>
<QuasiParabolic ID="5" StartDistance="6575.0" EndDistance="6578.0" A="9.267797E12" B="-2.82109747E9" C="214684.1" Error="0.00643"/>
<QuasiParabolic ID="6" StartDistance="6578.0" EndDistance="6584.0" A="1.32690435E13" B="-4.03765146E9" C="307155.5" Error="0.00319"/>
<QuasiParabolic ID="7" StartDistance="6584.0" EndDistance="6593.0" A="3.24866754E13" B="-9.875328E9" C="750478.5" Error="0.0187"/>
<QuasiParabolic ID="8" StartDistance="6593.0" EndDistance="6597.0" A="2.94296549E13" B="-8.9479752E9" C="680149.8" Error="0.00797"/>
<QuasiParabolic ID="9" StartDistance="6597.0" EndDistance="6612.214" A="-3.7046656E13" B="1.12055214E10" C="-847324.5" Error="0.00369"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="92.75" Depth="0.154"/>
<TopsideChapman PeakHeight="242.214" PeakDensity="131048.39" PeakScaleHeight="12.839" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
