<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-23 -113 07:35:00.000"
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" >
2026.04.23 (113) 07:35:00</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">
FF202611304230735001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.475" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.905" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.570" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.325" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.325" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.800" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="212.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="212.500" 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="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.375" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="252.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.325" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.325" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="222.784" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="204.315" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.776" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="26.362" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.900" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.306" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="23.540" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.280" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="47">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.325 2.35 2.375 2.4 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 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 3.425 3.45 3.475
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
212.500 212.500 212.500 212.500 215.000 215.000 215.000 215.000 215.000 217.500 217.500 217.500 217.500 217.500 217.500 220.000 220.000 220.000 220.000 220.000 222.500 222.500 222.500 222.500 223.750 225.000 225.000 225.000 227.500 227.500 230.000 232.500 232.500 232.500 235.000 237.500 237.500 237.500 242.500 245.000 247.500 250.000 252.500 260.000 265.000 277.867 302.198
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
51 51 63 63 69 69 72 69 66 63 0 63 0 66 63 63 63 0 51 54 42 45 57 54 0 69 72 75 90 87 102 96 90 93 105 99 93 90 111 105 90 87 75 72 93 90 72
</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 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="351">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 133.91667 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 157.83333 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 181.75 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 222.784 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0
</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 0.353812 0.35317364 0.35216394 0.3506408 0.34876516 0.34647703 0.34372342 0.34053037 0.33679065 0.33268294 0.3279859 0.32283023 0.31710255 0.31084144 0.3038868 0.296354 0.2880265 0.27895737 0.26904914 0.25815907 0.24620353 0.23298319 0.21839198 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 0.20107317 0.2075122 0.21395122 0.22039025 0.22682928 0.23326829 0.23970732 0.24614634 0.25258535 0.25902438 0.2654634 0.27190244 0.27834147 0.2847805 0.2912195 0.29765853 0.30409756 0.3105366 0.31697562 0.32341462 0.32985365 0.33629268 0.3427317 0.34917074 0.354 0.361953 0.39882588 0.4446498 0.4992933 0.5609202 0.6272291 0.69668955 0.7686952 0.8432532 0.9207165 1.0016195 1.0866306 1.176446 1.2718799 1.3737226 1.4827365 1.5995011 1.7242463 1.8564558 1.994685 2.136288 2.277746 2.4152358 2.5455718 2.6665437 2.777149 2.8771904 2.9670222 3.047262 3.1186256 3.181835 3.237546 3.286337 3.3287125 3.3650968 3.3958595 3.4212768 3.4416 3.4570076 3.4676356 3.4735806 3.475 3.474923 3.4725919 3.467123 3.458665 3.447367 3.4333792 3.4168503 3.3979282 3.3767588 3.3534849 3.3282468 3.3011816 3.2724226 3.2420986 3.2103353 3.177253 3.142968 3.107592 3.0712326 3.0339913 2.9959664 2.9572506 2.9179327 2.8780966 2.837822 2.7971838 2.756253 2.715097 2.6737778 2.6323552 2.590884 2.5494163 2.508 2.4666803 2.4254987 2.384494 2.3437026 2.3031569 2.2628877 2.222923 2.1832883 2.1440072 2.1051009 2.0665886 2.028488 1.9908143 1.9535817 1.9168024 1.8804874 1.8446463 1.8092871 1.7744168 1.7400414 1.7061656 1.672793 1.6399268 1.6075687 1.5757201 1.5443815 1.5135525 1.4832325 1.4534198 1.4241128 1.3953087 1.3670048 1.3391978 1.3118838 1.2850591 1.258719 1.2328591 1.2074745 1.18256 1.1581104 1.13412 1.1105834 1.0874947 1.064848 1.0426372 1.0208564 0.9994992 0.97855955 0.95803106 0.93790746 0.91818243 0.8988496 0.87990266 0.8613352 0.84314096 0.8253136 0.80784684 0.7907344 0.7739701 0.75754786 0.7414614 0.7257047 0.7102719 0.6951569 0.68035376 0.66585684 0.65166026 0.63775843 0.6241456 0.6108164 0.5977653 0.5849869 0.57247597 0.56022716 0.54823536 0.5364955 0.52500266 0.5137518 0.50273824 0.4919571 0.48140374 0.47107357 0.4609621 0.45106483 0.44137743 0.43189564 0.42261526 0.4135321 0.40464213 0.3959414 0.387426 0.37909204 0.37093583 0.3629536 0.35514182 0.34749687 0.3400153 0.33269367 0.32552865 0.31851697 0.31165537 0.30494073 0.29836997 0.29194 0.28564793 0.27949077 0.27346572 0.26757 0.2618008 0.2561555 0.25063142 0.24522604 0.23993683 0.2347613 0.22969703 0.22474168 0.21989289 0.21514842 0.21050604 0.20596355 0.20151885 0.19716983 0.19291444 0.1887507 0.18467662 0.1806903 0.17678986 0.17297347 0.16923931 0.16558562 0.1620107 0.15851282 0.15509035 0.15174167 0.1484652 0.14525938 0.14212269 0.13905366 0.13605082 0.13311276 0.13023807 0.12742542 0.12467343 0.12198084 0.119346336 0.11676869 0.11424667 0.11177908 0.10936474 0.10700252 0.10469128 0.102429934 0.1002174 0.098052636 0.0959346 0.09386229 0.091834724 0.08985093 0.087909974 0.086010925 0.08415288 0.08233496 0.08055629 0.078816034 0.07711335 0.07544745 0.07381752 0.07222279 0.070662506 0.06913592 0.0676423 0.06618094 0.06475114 0.06335223 0.061983533 0.0606444 0.05933419 0.05805228 0.056798063 0.055570934 0.054370318 0.053195633 0.052046325 0.050921842

</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="3.475" PeakHeight="222.784" Num="5" zHalfNm="204.315" Error="0.69">
-45.061 6.763 -4.038 2.038 -0.736
</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="6503.917" A="-2.64886878E11" B="8.1755208E7" C="-6308.147" Error="0.00151"/>
<QuasiParabolic ID="2" StartDistance="6503.917" EndDistance="6527.833" A="0.0" B="-1798.7892" C="0.31658125" Error="0.0256"/>
<QuasiParabolic ID="3" StartDistance="6527.833" EndDistance="6549.0" A="1.15687711E11" B="-3.553272E7" C="2728.4348" Error="0.0263"/>
<QuasiParabolic ID="4" StartDistance="6549.0" EndDistance="6550.0" A="-1.08773075E12" B="3.31979392E8" C="-25330.209" Error="3.22E-11"/>
<QuasiParabolic ID="5" StartDistance="6550.0" EndDistance="6552.0" A="3.97163155E12" B="-1.212864E9" C="92596.766" Error="0.0083"/>
<QuasiParabolic ID="6" StartDistance="6552.0" EndDistance="6555.0" A="1.57635723E13" B="-4.8123576E9" C="367283.4" Error="0.0339"/>
<QuasiParabolic ID="7" StartDistance="6555.0" EndDistance="6562.0" A="1.17670695E13" B="-3.59298227E9" C="274272.3" Error="0.0182"/>
<QuasiParabolic ID="8" StartDistance="6562.0" EndDistance="6570.0" A="3.5957324E13" B="-1.09658112E10" C="836054.44" Error="0.0216"/>
<QuasiParabolic ID="9" StartDistance="6570.0" EndDistance="6573.0" A="7.3755502E13" B="-2.2472108E10" C="1711723.9" Error="0.00614"/>
<QuasiParabolic ID="10" StartDistance="6573.0" EndDistance="6592.784" A="-3.30160511E13" B="1.00158147E10" C="-759592.25" Error="0.00881"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="71.75" Depth="0.154"/>
<TopsideChapman PeakHeight="222.784" PeakDensity="149821.66" PeakScaleHeight="14.306" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
