<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-30 -120 07:10:00.000"
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" >
2026.04.30 (120) 07:10:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.20" 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">
FF202612004300710001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.875" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.717" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="14.403" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.025" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.025" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.225" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="235.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="235.000" 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="3.700" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="267.507" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.025" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.025" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="242.876" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="224.221" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.926" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="26.695" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.127" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.305" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="24.960" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.760" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="35">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 3.7 3.725 3.75 3.775 3.8 3.825 3.85 3.875
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
235.000 235.000 235.000 237.500 237.500 237.500 240.000 240.000 240.000 242.500 242.500 242.500 242.500 245.000 245.000 247.500 247.500 250.000 250.000 252.500 252.500 252.500 255.000 257.500 259.441 261.696 264.346 267.507 271.341 276.089 282.121 290.042 300.903 316.711 341.846
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
81 84 93 93 96 96 93 93 96 90 81 84 93 93 96 93 96 96 84 81 72 72 81 81 81 81 81 81 66 63 72 72 0 0 84
</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 -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="376">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 139.16667 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 168.33333 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 197.5 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 242.876 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0
</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 0.352762 0.35175505 0.3505324 0.3489521 0.3470975 0.34497866 0.3425364 0.33978727 0.33674988 0.3333779 0.32963315 0.32561377 0.321167 0.3164043 0.31120363 0.30563802 0.29957724 0.29311055 0.28615454 0.27862445 0.27052397 0.26174292 0.2523066 0.24211602 0.23105234 0.21895285 0.20588575 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 0.20352 0.2088 0.21408 0.21936 0.22464 0.22992 0.2352 0.24048 0.24576 0.25104 0.25632 0.2616 0.26688 0.27216 0.27744 0.28272 0.288 0.29328 0.29856 0.30384 0.30912 0.3144 0.31968 0.32496 0.33024 0.33552 0.3408 0.34608 0.35136 0.354 0.37219304 0.41237968 0.45726335 0.5062262 0.5587091 0.614296 0.67280716 0.7341895 0.79856473 0.8661153 0.9370951 1.0118473 1.0907154 1.1740919 1.2623899 1.3560333 1.455353 1.5607067 1.6722615 1.7899677 1.9135214 2.0422196 2.1749742 2.3101752 2.4460135 2.5805042 2.7116604 2.8378356 2.9577165 3.0703895 3.1752875 3.2721899 3.361044 3.4419456 3.515108 3.5807757 3.639211 3.6906676 3.7353892 3.7736068 3.8055086 3.831254 3.8509858 3.8648045 3.8727796 3.875 3.8749716 3.8727021 3.8669178 3.8577847 3.845469 3.8301382 3.811958 3.791094 3.7677088 3.741962 3.7140105 3.6840074 3.6521018 3.6184382 3.5831566 3.5463922 3.5082748 3.4689298 3.4284766 3.3870304 3.3447003 3.3015907 3.2578008 3.2134247 3.1685517 3.1232657 3.0776467 3.0317698 2.985705 2.9395187 2.893273 2.8470263 2.800832 2.7547412 2.7088006 2.6630535 2.6175406 2.5722985 2.527362 2.4827626 2.4385285 2.3946867 2.351261 2.3082726 2.2657416 2.2236855 2.1821198 2.141059 2.1005147 2.0604978 2.0210178 1.9820825 1.9436985 1.9058712 1.868605 1.8319031 1.7957678 1.7602006 1.7252022 1.6907723 1.65691 1.6236138 1.5908816 1.5587107 1.527098 1.4960396 1.4655316 1.4355695 1.4061486 1.3772634 1.3489089 1.3210791 1.2937684 1.2669705 1.2406791 1.2148877 1.18959 1.1647791 1.1404481 1.1165903 1.0931987 1.0702664 1.0477861 1.025751 1.0041538 0.9829877 0.96224546 0.94192 0.9220043 0.9024914 0.8833743 0.86464596 0.84629965 0.82832855 0.81072575 0.7934847 0.77659863 0.760061 0.74386543 0.72800535 0.7124745 0.6972666 0.68237543 0.66779494 0.65351915 0.63954204 0.62585783 0.61246073 0.59934515 0.5865054 0.5739361 0.5616318 0.5495872 0.53779703 0.52625626 0.5149598 0.5039027 0.49308 0.482487 0.472119 0.46197137 0.4520396 0.4423192 0.43280587 0.42349526 0.4143832 0.40546557 0.39673832 0.38819745 0.37983912 0.37165952 0.36365485 0.3558215 0.34815583 0.34065434 0.33331358 0.32613018 0.31910077 0.31222212 0.3054911 0.29890448 0.29245928 0.28615248 0.27998114 0.2739424 0.26803344 0.2622515 0.25659385 0.2510579 0.245641 0.24034064 0.23515433 0.23007964 0.22511418 0.22025563 0.21550168 0.21085012 0.20629875 0.20184542 0.19748804 0.19322455 0.18905292 0.18497121 0.1809775 0.17706986 0.17324647 0.16950552 0.16584523 0.16226389 0.15875977 0.15533124 0.15197667 0.14869447 0.14548306 0.14234096 0.13926664 0.13625866 0.13331561 0.13043605 0.12761864 0.124862045 0.12216495 0.119526066 0.11694415 0.11441796 0.111946315 0.10952803 0.107161954 0.10484696 0.102581955 0.100365855 0.0981976 0.096076176 0.094000556 0.09196976 0.089982815 0.08803879 0.086136736 0.08427577 0.082454994 0.08067354 0.078930564 0.07722524 0.07555674 0.07392429 0.07232709 0.07076439 0.06923546 0.06773955 0.06627595 0.06484396 0.063442916 0.062072128 0.060730956 0.05941876 0.05813491 0.056878794 0.055649817 0.05444739 0.05327094 0.052119907 0.050993737

</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="3.875" PeakHeight="242.876" Num="5" zHalfNm="224.221" Error="1.398">
-47.623 4.069 -2.935 1.552 -0.439
</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="6509.167" A="-1.78385355E11" B="5.5057208E7" C="-4248.116" Error="0.00152"/>
<QuasiParabolic ID="2" StartDistance="6509.167" EndDistance="6538.333" A="0.0" B="346.36853" C="-0.013195008" Error="0.0055"/>
<QuasiParabolic ID="3" StartDistance="6538.333" EndDistance="6565.0" A="4.7482593E10" B="-1.4617793E7" C="1125.037" Error="0.0055"/>
<QuasiParabolic ID="4" StartDistance="6565.0" EndDistance="6566.0" A="-2.28453148E12" B="6.9582061E8" C="-52982.992" Error="0.0"/>
<QuasiParabolic ID="5" StartDistance="6566.0" EndDistance="6572.0" A="9.6032459E12" B="-2.92518989E9" C="222756.47" Error="0.0197"/>
<QuasiParabolic ID="6" StartDistance="6572.0" EndDistance="6577.0" A="9.49592E12" B="-2.89252813E9" C="220271.55" Error="0.011"/>
<QuasiParabolic ID="7" StartDistance="6577.0" EndDistance="6581.0" A="1.89321886E13" B="-5.7620035E9" C="438416.25" Error="0.00514"/>
<QuasiParabolic ID="8" StartDistance="6581.0" EndDistance="6595.0" A="3.7876188E13" B="-1.15191828E10" C="875825.44" Error="0.0168"/>
<QuasiParabolic ID="9" StartDistance="6595.0" EndDistance="6603.0" A="-3.660388E13" B="1.10676449E10" C="-836595.25" Error="0.00382"/>
<QuasiParabolic ID="10" StartDistance="6603.0" EndDistance="6612.876" A="-4.2885265E13" B="1.29702308E10" C="-980665.0" Error="1.79E-5"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="87.5" Depth="0.154"/>
<TopsideChapman PeakHeight="242.876" PeakDensity="186298.08" PeakScaleHeight="14.305" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
