<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-15 -105 03:50:00.000"
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) 03:50:00</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">
FF202610504150350001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.150" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.707" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.678" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.375" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.375" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.400" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="232.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="232.500" 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="0.025" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.000" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="268.231" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.375" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.375" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="240.911" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="221.836" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.472" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="27.282" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.770" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.687" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="25.410" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.810" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="32">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
232.500 233.750 235.000 235.556 236.111 236.667 237.222 237.778 238.333 238.889 239.444 240.000 241.500 243.000 244.500 246.000 247.500 247.500 249.157 250.993 253.041 255.338 257.934 260.890 264.286 268.231 272.866 278.393 285.095 293.391 303.927 317.751
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
81 0 69 0 0 0 0 0 0 0 0 69 0 0 0 0 69 72 0 0 0 0 0 0 0 0 0 0 0 0 0 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 4.6875 -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 10.9375 -1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="371">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 138.58333 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 167.16667 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 195.75 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 240.911 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0
</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 0.3533988 0.35268724 0.35168076 0.35038465 0.34873247 0.34680796 0.3446216 0.34204412 0.33923516 0.3360058 0.33251932 0.32860458 0.3243659 0.31978112 0.314722 0.3093164 0.3034716 0.29713094 0.29034886 0.28298154 0.27503994 0.26650268 0.25724816 0.24721296 0.23637795 0.22454801 0.21165071 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 0.2044898 0.20987755 0.2152653 0.22065306 0.22604081 0.23142858 0.23681633 0.24220408 0.24759184 0.2529796 0.25836736 0.2637551 0.26914287 0.27453062 0.27991837 0.28530613 0.29069388 0.29608163 0.3014694 0.30685714 0.3122449 0.31763265 0.3230204 0.32840815 0.3337959 0.3391837 0.34457144 0.3499592 0.354 0.36117283 0.39283308 0.42931917 0.47037682 0.51542497 0.5637861 0.61489 0.6683688 0.72405183 0.7819464 0.84216315 0.90486306 0.970296 1.0387111 1.1104071 1.185675 1.2648044 1.3480382 1.4355571 1.5273799 1.6233838 1.7231766 1.8260474 1.9309559 2.0365918 2.1414666 2.2440033 2.342848 2.4368327 2.5251732 2.6073382 2.6830952 2.7524157 2.8153875 2.8722045 2.9230704 2.9682307 3.007926 3.0423737 3.07177 3.0962932 3.1160924 3.1312788 3.141951 3.1481736 3.15 3.1499887 3.148335 3.1439629 3.1369965 3.127561 3.1157825 3.1017852 3.0856936 3.06763 3.0477157 3.0260684 3.0028045 2.9780364 2.9518743 2.9244242 2.8957891 2.8660686 2.835358 2.8037488 2.7713299 2.738185 2.7043946 2.6700354 2.6351805 2.5998988 2.5642564 2.5283153 2.4921343 2.4557688 2.4192708 2.3826892 2.3460705 2.3094573 2.2728903 2.2364066 2.2000415 2.1638274 2.1277947 2.091971 2.0563822 2.021052 1.9860022 1.9512526 1.9168216 1.8827256 1.8489796 1.815597 1.7825902 1.7499697 1.7177452 1.6859249 1.6545163 1.6235257 1.5929585 1.5628188 1.5331105 1.5038363 1.4749982 1.4465978 1.4186357 1.3911122 1.364027 1.3373791 1.3111672 1.2853898 1.2600443 1.2351286 1.2106397 1.1865746 1.1629297 1.1397012 1.1168857 1.0944787 1.0724761 1.0508734 1.029666 1.008849 0.9884179 0.9683675 0.9486929 0.929389 0.9104506 0.89187247 0.87364936 0.855776 0.8382471 0.82105744 0.80420154 0.7876741 0.77146995 0.7555837 0.7400101 0.72474384 0.7097798 0.6951127 0.6807375 0.666649 0.6528421 0.6393119 0.62605345 0.6130617 0.6003319 0.5878592 0.5756389 0.5636663 0.5519367 0.5404456 0.5291885 0.518161 0.5073587 0.49677715 0.4864123 0.47625986 0.46631575 0.4565759 0.44703636 0.43769315 0.42854244 0.41958043 0.4108034 0.4022077 0.3937897 0.38554585 0.3774727 0.36956683 0.36182487 0.35424352 0.34681955 0.33954978 0.33243114 0.3254605 0.3186349 0.31195137 0.30540702 0.29899904 0.29272464 0.28658104 0.28056565 0.27467576 0.26890886 0.26326236 0.25773385 0.2523209 0.24702105 0.24183205 0.23675159 0.23177741 0.22690734 0.22213921 0.21747091 0.21290039 0.2084256 0.20404457 0.19975534 0.19555601 0.19144472 0.18741962 0.18347895 0.17962092 0.17584383 0.17214599 0.16852574 0.16498145 0.16151159 0.15811454 0.1547888 0.15153292 0.1483454 0.14522482 0.14216979 0.13917892 0.13625088 0.13338438 0.13057809 0.12783077 0.12514119 0.12250812 0.11993041 0.11740687 0.11493638 0.112517826 0.11015011 0.107832186 0.105562985 0.103341505 0.10116674 0.09903771 0.096953444 0.09491301 0.0929155 0.090959996 0.08904563 0.087171525 0.08533684 0.08354075 0.081782445 0.08006113 0.078376025 0.07672638 0.075111434 0.073530465 0.071982756 0.07046762 0.06898436 0.067532316 0.06611082 0.06471924 0.063356936 0.0620233 0.06071773 0.05943964 0.058188442 0.056963574 0.055764485 0.05459063 0.053441484 0.05231652 0.05121523 0.05013712

</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="3.15" PeakHeight="240.911" Num="5" zHalfNm="221.836" Error="1.358">
-47.142 3.881 -2.886 1.512 -0.526
</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="6508.583" A="-1.85709953E11" B="5.7317888E7" C="-4422.5513" Error="0.00149"/>
<QuasiParabolic ID="2" StartDistance="6508.583" EndDistance="6537.167" A="0.0" B="331.74203" C="-0.010949774" Error="0.00507"/>
<QuasiParabolic ID="3" StartDistance="6537.167" EndDistance="6564.0" A="5.0063352E10" B="-1.5411447E7" C="1186.0554" Error="0.00507"/>
<QuasiParabolic ID="4" StartDistance="6564.0" EndDistance="6565.0" A="1.76223027E12" B="-5.3709549E8" C="40924.324" Error="6.13E-11"/>
<QuasiParabolic ID="5" StartDistance="6565.0" EndDistance="6573.0" A="8.0006857E12" B="-2.43761485E9" C="185670.67" Error="0.0312"/>
<QuasiParabolic ID="6" StartDistance="6573.0" EndDistance="6581.0" A="1.11901336E13" B="-3.40808448E9" C="259493.08" Error="0.0229"/>
<QuasiParabolic ID="7" StartDistance="6581.0" EndDistance="6593.0" A="2.61046162E13" B="-7.940673E9" C="603862.4" Error="0.0195"/>
<QuasiParabolic ID="8" StartDistance="6593.0" EndDistance="6610.911" A="-2.65057993E13" B="8.0188037E9" C="-606472.56" Error="0.00773"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="85.75" Depth="0.154"/>
<TopsideChapman PeakHeight="240.911" PeakDensity="123107.94" PeakScaleHeight="14.687" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
