<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-14 -104 05:45:00.000"
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" >
2026.04.14 (104) 05:45:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" 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">
FF202610404140545001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.800" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.557" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="9.959" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.425" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.425" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.150" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="260.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="260.000" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.625" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="280.641" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.425" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.425" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="259.411" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="240.904" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.355" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="26.416" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.595" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.068" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="25.920" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.280" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="16">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.425 2.45 2.475 2.5 2.525 2.55 2.575 2.6 2.625 2.65 2.675 2.7 2.725 2.75 2.775 2.8
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
260.000 260.000 262.500 267.500 270.000 272.100 274.517 277.329 280.641 284.602 289.420 295.408 303.051 313.148 327.102 347.647
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
84 87 72 75 75 72 72 72 72 72 72 72 72 0 69 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="372">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 259.411 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0
</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 0.35362422 0.35313663 0.3524263 0.35157037 0.35049725 0.34921128 0.34779054 0.3460947 0.34420434 0.34212717 0.33980232 0.33724248 0.33452845 0.33153966 0.32836035 0.32488185 0.3211927 0.3171983 0.31299222 0.3084957 0.30364835 0.2985621 0.29312387 0.2873491 0.2811647 0.27462557 0.26766586 0.26023185 0.25232056 0.24386445 0.23482597 0.2251332 0.21472648 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 0.2 0.2044 0.2088 0.2132 0.2176 0.222 0.2264 0.2308 0.2352 0.2396 0.244 0.2484 0.2528 0.2572 0.2616 0.266 0.2704 0.2748 0.2792 0.2836 0.288 0.2924 0.2968 0.3012 0.3056 0.31 0.3144 0.3188 0.3232 0.3276 0.332 0.3364 0.3408 0.3452 0.3496 0.354 0.3884118 0.42480496 0.46315867 0.50349605 0.5458617 0.59033495 0.63702434 0.68601936 0.7374528 0.79143506 0.8480884 0.9075071 0.9698023 1.0350249 1.1032017 1.1743116 1.2482831 1.3249385 1.4040529 1.4852716 1.5681844 1.6522589 1.7369 1.8214794 1.9053172 1.987733 2.068097 2.145826 2.2203908 2.291356 2.358336 2.421065 2.4792907 2.5328662 2.5816576 2.6255953 2.66463 2.6987367 2.7278907 2.7521017 2.7713675 2.7856994 2.7951033 2.7995846 2.8 2.7995248 2.7965941 2.7910984 2.7831635 2.7729166 2.7604845 2.7459927 2.7295659 2.7113261 2.691394 2.6698868 2.6469188 2.6226008 2.5970407 2.570342 2.5426052 2.5139258 2.484396 2.454104 2.423134 2.3915658 2.3594759 2.326936 2.2940147 2.2607768 2.2272828 2.1935902 2.159753 2.1258218 2.0918438 2.0578632 2.0239215 1.9900565 1.9563043 1.9226978 1.8892674 1.8560413 1.8230455 1.7903035 1.757837 1.7256659 1.6938082 1.6622798 1.6310958 1.6002688 1.5698109 1.539732 1.5100414 1.4807467 1.451855 1.4233717 1.3953017 1.367649 1.3404162 1.3136058 1.2872193 1.2612574 1.2357205 1.2106081 1.1859194 1.1616529 1.1378068 1.114379 1.0913668 1.0687672 1.046577 1.0247926 1.0034102 0.9824259 0.9618353 0.94163406 0.92181754 0.90238106 0.88331974 0.86462855 0.8463025 0.8283365 0.81072515 0.79346335 0.77654576 0.75996697 0.7437217 0.72780454 0.7122101 0.69693303 0.681968 0.6673095 0.65295243 0.63889134 0.625121 0.61163616 0.59843165 0.5855023 0.57284313 0.560449 0.5483149 0.53643596 0.5248073 0.513424 0.5022814 0.4913749 0.48069975 0.47025144 0.46002543 0.45001736 0.44022286 0.43063763 0.42125747 0.41207817 0.40309572 0.3943061 0.38570532 0.3772895 0.3690549 0.3609977 0.3531143 0.34540102 0.33785436 0.33047083 0.32324702 0.31617957 0.3092652 0.3025007 0.29588288 0.28940868 0.28307503 0.27687898 0.27081755 0.26488796 0.25908732 0.25341293 0.24786206 0.2424321 0.23712045 0.23192456 0.22684197 0.22187023 0.21700695 0.21224983 0.20759654 0.20304488 0.19859262 0.19423763 0.18997782 0.18581112 0.1817355 0.17774902 0.17384973 0.17003573 0.16630518 0.16265628 0.15908724 0.15559633 0.15218186 0.14884214 0.14557558 0.14238057 0.13925554 0.13619898 0.13320939 0.13028532 0.12742534 0.12462805 0.12189207 0.11921608 0.116598755 0.114038825 0.11153503 0.10908614 0.10669096 0.10434832 0.10205706 0.09981607 0.097624235 0.095480494 0.09338379 0.091333084 0.08932738 0.087365694 0.08544705 0.083570525 0.08173517 0.07994011 0.07818444 0.07646731 0.07478788 0.07314531 0.0715388 0.06996755 0.0684308 0.06692779 0.065457776 0.06402004 0.06261387 0.061238572 0.059893474 0.05857791 0.057291236 0.056032814 0.054802023 0.053598262 0.052420937 0.051269464 0.05014328

</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="2.8" PeakHeight="259.411" Num="5" zHalfNm="240.904" Error="1.351">
-45.049 1.418 -1.306 0.638 -0.112
</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="6515.0" A="-1.24071371E11" B="3.8293632E7" C="-2954.6301" Error="0.00182"/>
<QuasiParabolic ID="2" StartDistance="6515.0" EndDistance="6550.0" A="0.0" B="48.30193" C="0.032625664" Error="9.9E-4"/>
<QuasiParabolic ID="3" StartDistance="6550.0" EndDistance="6551.0" A="-4.3470401E12" B="1.32709517E9" C="-101286.2" Error="3.64E-10"/>
<QuasiParabolic ID="4" StartDistance="6551.0" EndDistance="6566.0" A="1.14595086E11" B="-3.5028272E7" C="2676.8115" Error="0.0378"/>
<QuasiParabolic ID="5" StartDistance="6566.0" EndDistance="6583.0" A="-1.87017257E10" B="5573865.0" C="-415.03555" Error="0.0125"/>
<QuasiParabolic ID="6" StartDistance="6583.0" EndDistance="6591.0" A="6.201484E12" B="-1.88419853E9" C="143119.25" Error="0.0255"/>
<QuasiParabolic ID="7" StartDistance="6591.0" EndDistance="6594.0" A="5.7372437E12" B="-1.74332762E9" C="132432.64" Error="0.0016"/>
<QuasiParabolic ID="8" StartDistance="6594.0" EndDistance="6615.0" A="1.34391634E13" B="-4.07936614E9" C="309566.28" Error="0.0313"/>
<QuasiParabolic ID="9" StartDistance="6615.0" EndDistance="6629.411" A="-2.45379199E13" B="7.4027448E9" C="-558318.2" Error="0.0115"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="105.0" Depth="0.154"/>
<TopsideChapman PeakHeight="259.411" PeakDensity="97270.47" PeakScaleHeight="14.068" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
