<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-15 -105 07:45:00.000"
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" >
2026.04.15 (105) 07:45:00</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">
FF202610504150745001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.675" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.619" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="9.681" 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="3.025" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.500" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="270.000" 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="255.469" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="237.596" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.736" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="25.503" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.527" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="13.504" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="25.900" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.040" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="11">
<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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
260.000 265.000 267.500 270.000 276.875 283.750 290.625 297.500 305.000 316.250 327.500
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
72 69 72 69 0 0 0 69 66 0 63
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="361">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 143.744 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 177.488 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 211.232 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 255.469 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0
</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 0.35306174 0.35235173 0.35142186 0.3502019 0.3488451 0.34728253 0.34544867 0.34342462 0.34121862 0.33870178 0.3359589 0.3330047 0.32979 0.32633612 0.32254234 0.31856328 0.31425032 0.30964795 0.30474913 0.29950657 0.29391903 0.28795737 0.28164402 0.27482706 0.26762936 0.2599352 0.25165313 0.24285091 0.23335174 0.22322245 0.21224621 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 0.20233665 0.20690043 0.2114642 0.21602798 0.22059175 0.22515552 0.2297193 0.23428307 0.23884685 0.24341062 0.2479744 0.25253817 0.25710195 0.26166573 0.26622948 0.27079326 0.27535704 0.27992082 0.2844846 0.28904837 0.29361215 0.2981759 0.30273968 0.30730346 0.31186724 0.31643102 0.3209948 0.32555857 0.33012232 0.3346861 0.33924988 0.34381366 0.34837744 0.35294122 0.354 0.380243 0.41604605 0.4536861 0.4931902 0.53458023 0.577904 0.62319875 0.67052084 0.71991706 0.77141494 0.8250564 0.8808629 0.93884605 0.99899524 1.0612803 1.1256335 1.1919951 1.2602324 1.3301979 1.4017103 1.4745103 1.5483686 1.6229432 1.6979113 1.7728747 1.8474553 1.9212115 1.993708 2.0645027 2.1331575 2.1992342 2.2623203 2.322041 2.3780093 2.4298975 2.4774175 2.520277 2.558259 2.5911493 2.6187856 2.6410189 2.657746 2.6688826 2.674376 2.675 2.6745994 2.6717222 2.666186 2.6581273 2.6476834 2.6349907 2.6201851 2.6034005 2.5847685 2.5644186 2.542476 2.519063 2.4942982 2.468296 2.4411666 2.4130156 2.3839443 2.3540497 2.3234239 2.292155 2.260326 2.228016 2.1952996 2.162247 2.1289244 2.095394 2.061714 2.027939 1.9941198 1.9603039 1.9265352 1.8928546 1.8592999 1.825906 1.792705 1.7597264 1.7269973 1.6945419 1.6623831 1.630541 1.5990338 1.5678781 1.5370886 1.5066783 1.4766586 1.4470397 1.4178302 1.3890376 1.3606683 1.3327272 1.3052186 1.2781458 1.2515111 1.2253159 1.1995612 1.174247 1.1493727 1.1249373 1.1009392 1.0773761 1.0542455 1.0315444 1.0092695 0.987417 0.9659829 0.9449631 0.92435294 0.9041478 0.8843427 0.86493254 0.8459121 0.8272761 0.8090191 0.7911354 0.7736195 0.7564656 0.7396681 0.7232211 0.7071189 0.6913557 0.6759256 0.66082287 0.6460417 0.6315763 0.617421 0.6035699 0.59001756 0.57675827 0.5637864 0.5510965 0.53868306 0.52654064 0.514664 0.5030478 0.49168685 0.480576 0.46971017 0.45908436 0.4486937 0.43853328 0.42859834 0.41888422 0.40938625 0.40009993 0.3910208 0.38214442 0.37346652 0.36498287 0.3566893 0.34858173 0.34065613 0.3329086 0.3253353 0.3179324 0.31069618 0.30362308 0.29670948 0.2899519 0.2833469 0.2768911 0.27058128 0.26441416 0.2583866 0.25249553 0.2467379 0.24111074 0.23561117 0.23023632 0.22498344 0.21984978 0.2148327 0.20992956 0.20513783 0.20045501 0.19587865 0.19140637 0.18703581 0.18276471 0.1785908 0.17451192 0.17052591 0.16663067 0.16282415 0.15910436 0.15546934 0.15191716 0.14844596 0.1450539 0.14173917 0.13850003 0.13533479 0.13224176 0.12921928 0.12626576 0.12337964 0.120559394 0.11780352 0.115110554 0.11247907 0.109907664 0.10739497 0.104939654 0.10254041 0.10019597 0.09790507 0.0956665 0.09347907 0.09134161 0.08925298 0.08721207 0.0852178 0.0832691 0.08136492 0.07950427 0.07768613 0.07590955 0.07417357 0.072477266 0.07081974 0.0692001 0.06761748 0.06607105 0.06455996 0.06308342 0.061640635 0.060230836 0.05885327 0.0575072 0.056191903 0.05490668 0.05365085 0.052423727 0.051224668 0.050053027

</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="2.675" PeakHeight="255.469" Num="5" zHalfNm="237.596" Error="1.087">
-43.777 -0.521 -0.13 0.236 -0.045
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="12" 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="6513.744" A="-1.33438202E11" B="4.1184632E7" C="-3177.7012" Error="0.00165"/>
<QuasiParabolic ID="2" StartDistance="6513.744" EndDistance="6547.488" A="0.0" B="291.92792" C="-0.00478411" Error="0.00495"/>
<QuasiParabolic ID="3" StartDistance="6547.488" EndDistance="6549.0" A="-1.09781647E12" B="3.35191648E8" C="-25585.617" Error="0.0116"/>
<QuasiParabolic ID="4" StartDistance="6549.0" EndDistance="6579.0" A="5.2280926E10" B="-1.6036744E7" C="1229.8046" Error="0.0199"/>
<QuasiParabolic ID="5" StartDistance="6579.0" EndDistance="6580.0" A="-2.14183694E12" B="6.5096979E8" C="-49462.285" Error="6.16E-11"/>
<QuasiParabolic ID="6" StartDistance="6580.0" EndDistance="6583.0" A="1.03471403E13" B="-3.14507213E9" C="238990.75" Error="0.0189"/>
<QuasiParabolic ID="7" StartDistance="6583.0" EndDistance="6584.0" A="-1.11890609E12" B="3.38460288E8" C="-25594.732" Error="0.0"/>
<QuasiParabolic ID="8" StartDistance="6584.0" EndDistance="6590.0" A="5.7637255E12" B="-1.75225408E9" C="133177.62" Error="0.00461"/>
<QuasiParabolic ID="9" StartDistance="6590.0" EndDistance="6610.0" A="1.1178399E13" B="-3.39555405E9" C="257858.95" Error="0.0192"/>
<QuasiParabolic ID="10" StartDistance="6610.0" EndDistance="6618.0" A="-1.02580408E13" B="3.09050931E9" C="-232766.11" Error="0.00298"/>
<QuasiParabolic ID="11" StartDistance="6618.0" EndDistance="6625.469" A="-2.79824711E13" B="8.4469407E9" C="-637452.7" Error="0.00128"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="101.232" Depth="0.154"/>
<TopsideChapman PeakHeight="255.469" PeakDensity="88779.47" PeakScaleHeight="13.504" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
