<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-21 -141 00:30:00.000"
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" >
2026.05.21 (141) 00:30:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.22" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.99" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="75.82641" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202614105210030001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.225" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.792" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="16.020" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.950" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.950" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.625" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="217.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="217.500" 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="4.050" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="260.617" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.950" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.950" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="231.689" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="211.476" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.762" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="28.803" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.441" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="15.615" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="25.350" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.360" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="52">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 3.5 3.525 3.55 3.575 3.6 3.625 3.65 3.675 3.7 3.725 3.75 3.775 3.8 3.825 3.85 3.875 3.9 3.925 3.95 3.975 4.0 4.025 4.05 4.075 4.1 4.125 4.15 4.175 4.2 4.225
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
217.500 217.500 217.500 217.500 220.000 220.000 220.000 220.000 220.000 220.000 222.500 222.500 222.500 222.500 225.000 225.000 225.000 225.000 227.500 227.500 227.500 227.500 227.500 230.000 230.000 232.500 232.500 232.500 232.500 232.500 237.500 237.500 237.500 240.000 240.000 242.500 242.500 242.500 245.000 250.000 252.500 252.500 255.000 257.559 260.617 264.338 268.960 274.859 282.648 293.407 309.236 334.824
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 84 87 84 84 96 93 84 84 96 99 99 99 99 96 96 96 99 96 96 96 84 84 90 90 84 84 84 81 96 87 66 66 63 63 90 93 96 96 105 102 96 93 93 90 102 99 84 84 84 84 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 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="390">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 135.08333 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 160.16667 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 185.25 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 231.689 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0
</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 0.35324875 0.35231337 0.35101187 0.34927908 0.3471288 0.34465033 0.34171918 0.33843222 0.33468077 0.33043912 0.32582152 0.32063016 0.31500506 0.30879995 0.30202654 0.29470333 0.28661102 0.27785686 0.26831484 0.25787413 0.24648583 0.23391104 0.2201678 0.20492378 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 0.20511627 0.21125582 0.21739535 0.22353488 0.22967441 0.23581396 0.24195349 0.24809302 0.25423256 0.2603721 0.26651162 0.27265117 0.2787907 0.28493023 0.29106978 0.2972093 0.30334884 0.3094884 0.3156279 0.32176745 0.32790697 0.3340465 0.34018606 0.34632558 0.35246512 0.354 0.38097137 0.42236727 0.4695477 0.52159375 0.577524 0.6366725 0.6986946 0.76354563 0.83141625 0.9026165 0.9775952 1.0568528 1.1410526 1.230885 1.3271694 1.4307929 1.5427556 1.6640042 1.7953639 1.9372805 2.0895135 2.250646 2.417907 2.587267 2.7541738 2.9144619 3.065161 3.204584 3.3322136 3.4481986 3.5531454 3.647789 3.7329402 3.809344 3.8777025 3.9386237 3.9926252 4.040188 4.0816875 4.117454 4.147767 4.1728454 4.1928744 4.207992 4.2183065 4.223888 4.225 4.224837 4.2221427 4.216244 4.2072797 4.1953893 4.180713 4.1633906 4.143561 4.1213603 4.096925 4.0703874 4.0418777 4.011524 3.97945 3.9457765 3.9106205 3.874096 3.8363123 3.7973754 3.7573872 3.716445 3.674643 3.632071 3.588815 3.544957 3.5005746 3.4557426 3.4105315 3.3650084 3.3192363 3.2732756 3.2271826 3.181011 3.1348107 3.088629 3.0425103 2.9964962 2.9506252 2.9049337 2.859455 2.8142214 2.7692611 2.7246013 2.6802669 2.6362808 2.592664 2.5494359 2.5066137 2.4642138 2.4222503 2.3807364 2.3396838 2.299103 2.259003 2.2193916 2.1802764 2.141663 2.1035564 2.0659611 2.0288801 1.9923159 1.9562706 1.920745 1.8857399 1.8512552 1.8172901 1.7838434 1.7509136 1.7184986 1.686596 1.6552029 1.6243161 1.5939322 1.5640472 1.5346571 1.5057578 1.4773445 1.4494127 1.4219573 1.3949734 1.3684556 1.3423989 1.3167975 1.2916459 1.2669387 1.2426699 1.2188339 1.1954249 1.172437 1.1498642 1.1277007 1.1059406 1.0845778 1.0636065 1.0430208 1.0228148 1.0029824 0.9835178 0.9644154 0.9456691 0.9272733 0.9092222 0.89151007 0.8741314 0.85708046 0.84035176 0.8239398 0.8078392 0.79204464 0.77655065 0.7613521 0.7464438 0.73182064 0.7174775 0.70340943 0.68961155 0.6760789 0.6628068 0.6497905 0.63702536 0.6245067 0.6122301 0.6001911 0.58838534 0.57680845 0.5654562 0.55432445 0.5434091 0.532706 0.5222113 0.51192105 0.50183135 0.49193847 0.48223868 0.4727283 0.4634038 0.45426157 0.4452982 0.43651026 0.42789438 0.4194473 0.41116577 0.40304664 0.39508674 0.38728306 0.37963256 0.37213233 0.3647794 0.357571 0.3505043 0.34357655 0.33678508 0.33012724 0.32360044 0.31720212 0.31092978 0.304781 0.29875335 0.29284447 0.28705204 0.28137383 0.27580756 0.27035105 0.2650022 0.25975886 0.254619 0.24958055 0.24464156 0.23980007 0.23505417 0.230402 0.22584169 0.22137146 0.21698953 0.21269417 0.2084837 0.20435642 0.2003107 0.19634496 0.19245762 0.1886471 0.18491194 0.18125062 0.1776617 0.17414376 0.1706954 0.16731523 0.16400191 0.16075414 0.15757063 0.1544501 0.15139131 0.14839303 0.14545408 0.1425733 0.13974951 0.13698162 0.13426849 0.13160908 0.12900229 0.12644711 0.1239425 0.121487476 0.11908105 0.116722256 0.11441017 0.11214385 0.10992241 0.10774495 0.105610594 0.10351851 0.10146784 0.099457785 0.09748753 0.09555629 0.0936633 0.09180779 0.08998902 0.088206284 0.08645885 0.08474602 0.08306711 0.08142146 0.07980839 0.07822728 0.07667749 0.07515839 0.073669374 0.07220986 0.07077925 0.069376975 0.068002485 0.06665521 0.06533463 0.064040214 0.06277143 0.06152778 0.06030877 0.059113905 0.05794271 0.056794718 0.055669468 0.054566506 0.053485397 0.052425705 0.051387005 0.050368883

</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="4.225" PeakHeight="231.689" Num="5" zHalfNm="211.476" Error="1.394">
-50.781 7.653 -5.153 2.564 -0.722
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="10" 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="6505.083" A="-2.40913678E11" B="7.4356072E7" C="-5737.226" Error="0.00142"/>
<QuasiParabolic ID="2" StartDistance="6505.083" EndDistance="6530.167" A="0.0" B="-1589.2288" C="0.28431863" Error="0.0238"/>
<QuasiParabolic ID="3" StartDistance="6530.167" EndDistance="6537.0" A="3.05996005E11" B="-9.3771736E7" C="7184.0684" Error="0.0338"/>
<QuasiParabolic ID="4" StartDistance="6537.0" EndDistance="6554.0" A="1.85008422E9" B="-718059.94" C="66.608246" Error="0.0187"/>
<QuasiParabolic ID="5" StartDistance="6554.0" EndDistance="6558.0" A="1.0169607E13" B="-3.10348186E9" C="236774.25" Error="0.0234"/>
<QuasiParabolic ID="6" StartDistance="6558.0" EndDistance="6561.0" A="8.0380533E12" B="-2.45341978E9" C="187211.72" Error="0.00182"/>
<QuasiParabolic ID="7" StartDistance="6561.0" EndDistance="6570.0" A="1.61013899E13" B="-4.9113795E9" C="374527.66" Error="0.0345"/>
<QuasiParabolic ID="8" StartDistance="6570.0" EndDistance="6580.0" A="6.702874E13" B="-2.0414378E10" C="1554360.1" Error="0.015"/>
<QuasiParabolic ID="9" StartDistance="6580.0" EndDistance="6601.689" A="-4.0958289E13" B="1.24084265E10" C="-939774.0" Error="0.0102"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="75.25" Depth="0.154"/>
<TopsideChapman PeakHeight="231.689" PeakDensity="221471.78" PeakScaleHeight="15.615" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
