<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-13 -103 04:00:00.000"
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" >
2026.04.13 (103) 04:00:00</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">
FF202610304130400001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.400" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.449" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.725" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.650" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.650" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.700" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="270.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="270.000" 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="3.275" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="310.422" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.650" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.650" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="274.104" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="253.588" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.446" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="29.418" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.960" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="15.532" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="29.180" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.150" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="31">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.65 2.675 2.7 2.725 2.75 2.775 2.8 2.825 2.85 2.875 2.9 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 3.275 3.3 3.325 3.35 3.375 3.4
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
270.000 270.000 271.250 272.500 273.500 274.500 275.500 276.500 277.500 279.000 280.500 282.000 283.500 285.000 286.500 288.000 289.500 291.000 292.500 294.167 295.833 297.500 300.151 303.139 306.533 310.422 314.922 320.189 326.438 333.973 343.234
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
75 72 0 75 0 0 0 0 51 0 0 0 0 0 0 0 0 0 93 0 0 93 0 0 93 81 81 0 90 93 93
</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 10.9375 1.5625 1.5625 -1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="420">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 147.31033 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 184.62067 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 221.931 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 274.104 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0
</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 0.35321164 0.35265058 0.35186794 0.350941 0.34979865 0.3485186 0.34703198 0.34541664 0.34353504 0.3415376 0.33932605 0.336911 0.33433723 0.33154947 0.3284984 0.3252671 0.3218724 0.3182127 0.31425878 0.3101582 0.30572066 0.30110055 0.29611462 0.2909053 0.28535688 0.27948025 0.27323204 0.26661685 0.25962338 0.25219956 0.24427278 0.23584193 0.22677644 0.2171798 0.20687863 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 0.2 0.2 0.2 0.20156571 0.20569326 0.2098208 0.21394834 0.21807589 0.22220343 0.22633097 0.23045851 0.23458606 0.2387136 0.24284114 0.24696869 0.25109622 0.25522378 0.2593513 0.26347885 0.2676064 0.27173394 0.27586147 0.27998903 0.28411657 0.28824413 0.29237166 0.2964992 0.30062675 0.3047543 0.30888182 0.31300938 0.3171369 0.32126445 0.325392 0.32951954 0.33364707 0.33777463 0.34190217 0.34602973 0.35015726 0.354 0.356138 0.3882784 0.42262992 0.4591281 0.4977423 0.53845674 0.581269 0.6261934 0.6732587 0.72251076 0.77398837 0.8277419 0.8838393 0.9423223 1.0032337 1.0666125 1.1324811 1.2008499 1.271721 1.3450332 1.4207273 1.4987222 1.5788511 1.6609384 1.7447921 1.830121 1.9166325 2.0039787 2.0917838 2.1796257 2.2670906 2.3537495 2.4391596 2.5228608 2.6044636 2.6835608 2.7597785 2.8327725 2.902222 2.9678774 3.0294755 3.0868044 3.1396887 3.1879728 3.2315197 3.2702205 3.303996 3.332761 3.3564737 3.3750753 3.3885386 3.3968437 3.399972 3.4 3.3989084 3.3951793 3.3889108 3.3802168 3.3692124 3.3560114 3.3407278 3.3234742 3.3043616 3.2835 3.2609963 3.236956 3.2114809 3.1846714 3.1566243 3.127433 3.097189 3.065979 3.0338876 3.000996 2.967382 2.9331198 2.8982806 2.8629324 2.82714 2.7909653 2.7544665 2.7176993 2.6807165 2.6435676 2.6062996 2.568957 2.5315814 2.4942122 2.4568856 2.4196367 2.3824973 2.3454978 2.3086658 2.2720277 2.2356074 2.1994274 2.1635084 2.1278694 2.0925274 2.0574992 2.0227988 1.9884397 1.9544339 1.9207922 1.8875244 1.8546389 1.8221437 1.7900453 1.7583495 1.7270615 1.6961852 1.6657244 1.6356816 1.6060591 1.5768584 1.5480804 1.5197258 1.4917943 1.4642856 1.4371986 1.4105322 1.3842846 1.3584539 1.3330376 1.3080333 1.2834381 1.2592489 1.2354622 1.2120748 1.1890827 1.1664822 1.1442693 1.12244 1.1009897 1.0799142 1.0592091 1.0388699 1.0188918 0.99927026 0.9800005 0.9610778 0.9424973 0.9242543 0.9063439 0.8887612 0.87150145 0.8545597 0.83793116 0.821611 0.8055943 0.78987646 0.7744525 0.7593178 0.74446756 0.7298972 0.7156019 0.7015773 0.6878186 0.6743214 0.6610812 0.6480936 0.63535416 0.6228586 0.61060256 0.59858185 0.58679235 0.5752299 0.5638904 0.55276984 0.5418643 0.5311699 0.5206827 0.5103989 0.50031495 0.49042696 0.48073143 0.47122473 0.46190336 0.4527639 0.44380286 0.43501702 0.426403 0.41795754 0.40967754 0.40155983 0.3936013 0.38579896 0.37814984 0.370651 0.36329958 0.35609275 0.34902772 0.3421018 0.3353123 0.32865658 0.32213208 0.31573626 0.30946663 0.30332074 0.2972962 0.29139066 0.2856018 0.27992734 0.27436507 0.26891282 0.2635684 0.25832975 0.25319478 0.24816148 0.24322784 0.23839192 0.23365182 0.22900563 0.22445154 0.21998772 0.21561241 0.21132387 0.20712039 0.20300029 0.19896194 0.19500372 0.19112407 0.18732142 0.18359427 0.17994112 0.17636052 0.17285103 0.16941123 0.16603978 0.1627353 0.15949647 0.156322 0.15321063 0.15016109 0.14717215 0.14424264 0.14137135 0.13855717 0.13579893 0.13309553 0.13044588 0.12784894 0.12530364 0.12280897 0.12036391 0.117967494 0.11561874 0.11331672 0.11106049 0.10884915 0.10668182 0.104557596 0.10247565 0.10043513 0.098435216 0.0964751 0.09455399 0.092671126 0.09082572 0.089017056 0.087244384 0.085507 0.0838042 0.08213528 0.0804996 0.07889647 0.07732526 0.075785324 0.074276045 0.072796814 0.071347035 0.06992612 0.068533495 0.06716859 0.065830864 0.06451978 0.06323479 0.061975393 0.06074107 0.059531324 0.058345668 0.05718362 0.056044713 0.05492848 0.05383448 0.052762263 0.0517114 0.05068146

</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="3.4" PeakHeight="274.104" Num="5" zHalfNm="253.588" Error="0.771">
-52.453 0.677 -0.76 0.482 -0.119
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="7" 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="6517.31" A="-1.09262299E11" B="3.3722932E7" C="-2601.9526" Error="0.00177"/>
<QuasiParabolic ID="2" StartDistance="6517.31" EndDistance="6554.621" A="0.0" B="1865.7168" C="-0.2462324" Error="0.0398"/>
<QuasiParabolic ID="3" StartDistance="6554.621" EndDistance="6591.0" A="2.1678377E10" B="-6700913.0" C="517.7755" Error="0.0413"/>
<QuasiParabolic ID="4" StartDistance="6591.0" EndDistance="6606.0" A="7.1794578E12" B="-2.17868672E9" C="165286.84" Error="0.0584"/>
<QuasiParabolic ID="5" StartDistance="6606.0" EndDistance="6629.0" A="1.53679917E13" B="-4.6578068E9" C="352928.4" Error="0.0414"/>
<QuasiParabolic ID="6" StartDistance="6629.0" EndDistance="6644.104" A="-3.09284328E13" B="9.310039E9" C="-700612.56" Error="0.0127"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="111.931" Depth="0.154"/>
<TopsideChapman PeakHeight="274.104" PeakDensity="143424.31" PeakScaleHeight="15.532" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
