<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-17 -107 03:15:00.000"
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" >
2026.04.17 (107) 03:15:00</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">
FF202610704170315001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.400" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.645" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.395" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.575" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.575" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.675" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="237.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="237.500" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.300" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="285.903" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.575" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.575" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="247.446" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="227.760" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.592" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="28.192" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.918" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.977" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="27.380" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.340" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="34">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.575 2.6 2.625 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" >
237.500 238.750 240.000 240.000 241.250 242.500 243.750 245.000 246.250 247.500 248.750 250.000 252.500 253.750 255.000 256.250 257.500 260.000 260.000 260.000 262.500 265.000 267.500 270.000 270.000 277.500 277.500 280.000 282.500 285.903 289.821 294.381 299.754 306.179
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
75 0 75 75 0 72 0 0 0 0 0 51 63 0 0 0 75 75 87 87 87 87 90 90 114 105 87 87 99 96 90 93 81 0
</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 7.8125 4.6875 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="385">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 139.75 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 169.5 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 199.25 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 247.446 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0
</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 0.35182965 0.3506064 0.3491724 0.34738788 0.34533682 0.34299496 0.34037665 0.33746356 0.3342082 0.33063674 0.3267138 0.32253745 0.31796023 0.31297803 0.30765462 0.30189866 0.29567927 0.28909197 0.28191414 0.2741947 0.26597098 0.25704813 0.24743798 0.23701459 0.22570056 0.21345264 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 0.20258823 0.2077647 0.21294117 0.21811765 0.22329412 0.2284706 0.23364706 0.23882353 0.244 0.24917647 0.25435293 0.2595294 0.2647059 0.26988235 0.27505884 0.2802353 0.28541178 0.29058823 0.2957647 0.30094117 0.30611765 0.3112941 0.3164706 0.32164705 0.32682353 0.332 0.33717647 0.34235293 0.3475294 0.3527059 0.354 0.37907502 0.4156404 0.45558837 0.498652 0.5445832 0.5932076 0.6443873 0.6980923 0.75430644 0.81308526 0.8744957 0.93863904 1.0056226 1.0755329 1.1484917 1.2245544 1.3037901 1.386185 1.4716867 1.5601933 1.6514734 1.7452416 1.8411018 1.9385567 2.0369883 2.1357574 2.23416 2.331414 2.4268491 2.5197601 2.6095355 2.6956427 2.7776258 2.8551185 2.927835 2.9955733 3.0581849 3.1155887 3.1677005 3.2145107 3.2560148 3.2922266 3.323156 3.3488395 3.3692894 3.384538 3.394598 3.3994863 3.4 3.3995492 3.3965032 3.3906915 3.382241 3.3712792 3.3579342 3.3423326 3.3246002 3.3048615 3.2832386 3.259851 3.234816 3.208248 3.1802573 3.1509519 3.1204357 3.0888093 3.056169 3.0226085 2.9882162 2.953078 2.9172752 2.8808858 2.843984 2.80664 2.7689204 2.7308893 2.692606 2.6541274 2.615507 2.5767944 2.538037 2.4992795 2.460563 2.421926 2.383405 2.3450334 2.3068426 2.2688615 2.2311168 2.1936336 2.156434 2.1195395 2.0829692 2.04674 2.0108683 1.9753683 1.9402528 1.9055333 1.8712204 1.837323 1.803849 1.7708056 1.7381985 1.706033 1.674313 1.6430418 1.6122222 1.5818559 1.5519441 1.5224876 1.4934862 1.4649395 1.4368464 1.4092056 1.3820151 1.3552727 1.3289757 1.3031213 1.2777063 1.252727 1.2281798 1.2040606 1.1803653 1.1570896 1.1342287 1.1117783 1.0897332 1.0680888 1.0468398 1.0259813 1.0055081 0.9854148 0.9656962 0.946347 0.9273618 0.90873516 0.89046174 0.87253606 0.8549528 0.83770645 0.82079166 0.8042031 0.7879354 0.77198315 0.75634116 0.74100417 0.7259669 0.7112242 0.69677097 0.68260217 0.6687127 0.6550976 0.64175195 0.62867093 0.61584973 0.6032835 0.5909678 0.5788977 0.56706893 0.5554768 0.5441169 0.532985 0.5220766 0.5113876 0.5009138 0.49065104 0.48059532 0.47074267 0.46108916 0.45163092 0.4423642 0.43328524 0.42439038 0.41567606 0.40713868 0.39877483 0.39058107 0.38255402 0.37469044 0.36698708 0.3594407 0.35204828 0.34480667 0.3377129 0.33076406 0.32395718 0.31728947 0.3107581 0.3043604 0.29809362 0.29195517 0.28594244 0.2800529 0.27428406 0.2686335 0.26309884 0.25767767 0.2523678 0.24716686 0.24207272 0.23708317 0.23219611 0.22740944 0.22272113 0.21812917 0.21363162 0.20922652 0.204912 0.20068623 0.19654739 0.19249369 0.18852341 0.18463483 0.18082629 0.17709616 0.17344281 0.1698647 0.16636026 0.162928 0.15956643 0.15627411 0.1530496 0.14989156 0.14679857 0.14376931 0.14080249 0.13789682 0.13505104 0.13226391 0.12953426 0.12686087 0.1242426 0.121678315 0.11916691 0.116707295 0.1142984 0.111939184 0.10962863 0.107365735 0.10514951 0.102979004 0.10085327 0.098771386 0.09673245 0.09473559 0.09277992 0.090864606 0.0889888 0.08715171 0.085352525 0.08359046 0.08186476 0.08017467 0.07851946 0.07689841 0.07531081 0.07375598 0.07223324 0.07074192 0.069281384 0.067851 0.066450134 0.06507818 0.06373455 0.062418647 0.06112991 0.059867773 0.058631692 0.057421125 0.056235548 0.055074446 0.053937312 0.05282365 0.051732983 0.050664827

</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="247.446" Num="5" zHalfNm="227.76" Error="0.945">
-49.584 2.362 -1.547 0.826 -0.253
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="9" 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="6509.75" A="-1.71482022E11" B="5.2926548E7" C="-4083.7134" Error="0.00152"/>
<QuasiParabolic ID="2" StartDistance="6509.75" EndDistance="6539.5" A="0.0" B="92.53835" C="0.025807563" Error="0.00104"/>
<QuasiParabolic ID="3" StartDistance="6539.5" EndDistance="6568.0" A="4.4825096E10" B="-1.3799031E7" C="1061.9739" Error="0.0105"/>
<QuasiParabolic ID="4" StartDistance="6568.0" EndDistance="6571.0" A="8.5422999E12" B="-2.60133709E9" C="198042.64" Error="0.0247"/>
<QuasiParabolic ID="5" StartDistance="6571.0" EndDistance="6581.0" A="7.5640262E12" B="-2.30358221E9" C="175385.89" Error="0.0311"/>
<QuasiParabolic ID="6" StartDistance="6581.0" EndDistance="6590.0" A="2.0101095E13" B="-6.113662E9" C="464861.66" Error="0.011"/>
<QuasiParabolic ID="7" StartDistance="6590.0" EndDistance="6602.0" A="1.63705908E13" B="-4.9814912E9" C="378960.97" Error="0.0266"/>
<QuasiParabolic ID="8" StartDistance="6602.0" EndDistance="6617.446" A="-3.14083472E13" B="9.4925885E9" C="-717228.06" Error="0.0105"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="89.25" Depth="0.154"/>
<TopsideChapman PeakHeight="247.446" PeakDensity="143424.31" PeakScaleHeight="14.977" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
