<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-17 -137 00:00:00.000"
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" >
2026.05.17 (137) 00:00:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.21" 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">
FF202613705170000001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.525" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.615" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.743" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.950" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.950" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.900" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="250.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="250.000" 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="3.325" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="275.275" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.950" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.950" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="255.752" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="236.799" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.924" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="27.165" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.953" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.446" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="26.450" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.350" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="24">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
250.000 252.500 252.500 252.500 255.000 255.000 257.500 257.500 260.000 262.500 265.000 265.000 267.500 269.726 272.290 275.275 278.794 283.003 288.129 294.507 302.661 313.451 328.403 350.500
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
72 72 75 87 87 87 87 99 96 99 99 96 93 96 96 90 96 96 96 90 90 75 72 69
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="386">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 142.66667 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 175.33333 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 255.752 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0
</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 0.35354906 0.35298675 0.35220242 0.35119912 0.34998095 0.3485529 0.34684834 0.3448765 0.3427189 0.34031472 0.33767694 0.33475268 0.3315615 0.3281247 0.32440233 0.3203629 0.31604326 0.3114253 0.3064471 0.3011715 0.2954905 0.2894757 0.282966 0.27603868 0.26865014 0.2607728 0.25231564 0.24324727 0.23349129 0.22299255 0.211631 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 0.2 0.2 0.20314285 0.20785715 0.21257143 0.21728571 0.222 0.22671428 0.23142858 0.23614286 0.24085714 0.24557143 0.2502857 0.255 0.25971428 0.2644286 0.26914287 0.27385715 0.27857143 0.2832857 0.288 0.2927143 0.29742858 0.30214286 0.30685714 0.31157142 0.3162857 0.321 0.3257143 0.33042857 0.33514285 0.33985713 0.34457144 0.34928572 0.354 0.3879667 0.4253092 0.4657959 0.50916135 0.55522543 0.6038373 0.65494066 0.70853317 0.76465964 0.8234163 0.88492084 0.9493155 1.0167377 1.0873706 1.1613613 1.2388498 1.3199373 1.4047267 1.4932439 1.5853978 1.6810669 1.7799655 1.8817077 1.9857174 2.0913646 2.197811 2.3042111 2.4096072 2.51312 2.613851 2.7110193 2.8039732 2.8921432 2.9751322 3.0525916 3.1243296 3.1901867 3.250093 3.3040292 3.3519888 3.3939955 3.4300969 3.4603276 3.4847338 3.5033603 3.5162354 3.523386 3.525 3.524899 3.5224774 3.516937 3.5084245 3.497087 3.4830723 3.4665267 3.4475963 3.4264245 3.4031522 3.3779182 3.3508575 3.3221016 3.291778 3.2600105 3.2269185 3.192617 3.1572165 3.1208231 3.0835383 3.045459 3.0066776 2.9672823 2.9273565 2.8869793 2.8462257 2.8051665 2.7638683 2.7223942 2.680803 2.6391504 2.5974877 2.5558639 2.5143235 2.4729092 2.4316595 2.390611 2.349797 2.3092482 2.2689934 2.229058 2.1894665 2.1502402 2.111399 2.0729604 2.034941 1.9973549 1.9602147 1.9235321 1.8873168 1.8515776 1.8163218 1.7815557 1.7472844 1.7135121 1.6802422 1.6474769 1.615218 1.5834662 1.5522217 1.5214839 1.4912518 1.4615239 1.4322977 1.4035709 1.3753403 1.3476026 1.3203539 1.2935902 1.267307 1.2414999 1.2161638 1.1912935 1.166884 1.1429294 1.1194246 1.0963635 1.0737405 1.0515494 1.0297843 1.0084392 0.98750764 0.9669837 0.9468611 0.9271335 0.9077948 0.88883865 0.87025875 0.852049 0.8342031 0.81671494 0.79957825 0.782787 0.7663351 0.7502166 0.7344255 0.71895576 0.7038017 0.68895745 0.67441726 0.6601755 0.6462266 0.63256496 0.61918527 0.606082 0.59325 0.5806838 0.56837857 0.556329 0.54453015 0.53297716 0.5216651 0.5105893 0.49974498 0.48912758 0.47873256 0.46855545 0.45859188 0.44883758 0.43928826 0.42993978 0.4207881 0.41182917 0.4030591 0.394474 0.3860701 0.37784365 0.36979103 0.36190867 0.354193 0.34664065 0.33924818 0.3320123 0.32492977 0.3179974 0.31121203 0.30457065 0.29807022 0.2917078 0.28548053 0.27938557 0.27342013 0.2675815 0.26186702 0.2562741 0.2508002 0.24544278 0.24019939 0.23506764 0.23004517 0.2251297 0.22031893 0.21561067 0.21100277 0.20649308 0.20207953 0.1977601 0.1935328 0.18939565 0.18534675 0.18138425 0.17750628 0.17371109 0.16999689 0.16636197 0.16280466 0.15932329 0.15591626 0.15258197 0.1493189 0.14612553 0.14300036 0.13994195 0.13694887 0.13401975 0.13115321 0.12834792 0.12560257 0.12291589 0.12028663 0.11771356 0.1151955 0.112731256 0.11031969 0.10795967 0.105650105 0.10338992 0.10117806 0.099013485 0.09689519 0.09482219 0.092793524 0.090808235 0.0888654 0.08696411 0.08510348 0.08328265 0.081500754 0.07975697 0.07805049 0.0763805 0.07474623 0.07314692 0.07158181 0.07005019 0.068551324 0.06708453 0.06564911 0.06424439 0.06286972 0.061524462 0.06020798 0.05891967 0.05765891 0.056425128 0.055217743 0.05403619 0.05287991 0.051748373 0.05064104

</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="3.525" PeakHeight="255.752" Num="5" zHalfNm="236.799" Error="1.356">
-48.562 1.807 -1.68 0.958 -0.275
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="11" 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="6512.667" A="-1.42344143E11" B="4.3933376E7" C="-3389.796" Error="0.00162"/>
<QuasiParabolic ID="2" StartDistance="6512.667" EndDistance="6545.333" A="0.0" B="517.2138" C="-0.039389055" Error="0.00922"/>
<QuasiParabolic ID="3" StartDistance="6545.333" EndDistance="6576.0" A="3.6027765E10" B="-1.1094035E7" C="854.03613" Error="0.00922"/>
<QuasiParabolic ID="4" StartDistance="6576.0" EndDistance="6577.0" A="6.5201327E11" B="-1.98437568E8" C="15098.525" Error="0.0"/>
<QuasiParabolic ID="5" StartDistance="6577.0" EndDistance="6581.0" A="9.1870472E12" B="-2.793856E9" C="212408.73" Error="0.0162"/>
<QuasiParabolic ID="6" StartDistance="6581.0" EndDistance="6584.0" A="4.25579302E12" B="-1.2952224E9" C="98548.1" Error="0.00975"/>
<QuasiParabolic ID="7" StartDistance="6584.0" EndDistance="6591.0" A="1.02332157E13" B="-3.11096448E9" C="236438.6" Error="0.00294"/>
<QuasiParabolic ID="8" StartDistance="6591.0" EndDistance="6608.0" A="2.32769192E13" B="-7.0689992E9" C="536699.2" Error="0.0175"/>
<QuasiParabolic ID="9" StartDistance="6608.0" EndDistance="6616.0" A="-1.9339143E13" B="5.8293248E9" C="-439263.6" Error="0.0021"/>
<QuasiParabolic ID="10" StartDistance="6616.0" EndDistance="6625.752" A="-3.7868945E13" B="1.14308372E10" C="-862594.4" Error="0.0011"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="98.0" Depth="0.154"/>
<TopsideChapman PeakHeight="255.752" PeakDensity="154164.08" PeakScaleHeight="14.446" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
