<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-03 -123 07:30:00.000"
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 22 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 70% PACIFIC flags: F2 cusps do not match</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.03 (123) 07:30:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.21" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.98" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="75.82641" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202612305030730001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.775" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.954" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="14.925" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.000" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.000" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.200" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="205.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="205.000" 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="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.650" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="245.708" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.000" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.000" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="218.628" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="200.764" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.359" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="25.528" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.014" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="13.582" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="23.700" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.710" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="72">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.0 2.025 2.05 2.075 2.1 2.125 2.15 2.175 2.2 2.225 2.25 2.275 2.3 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 3.5 3.525 3.55 3.575 3.6 3.625 3.65 3.675 3.7 3.725 3.75 3.775
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
205.000 205.000 205.000 205.000 205.000 205.000 205.000 207.500 207.500 207.500 207.500 207.500 210.000 210.000 210.000 210.000 210.000 210.000 212.500 212.500 212.500 212.500 212.500 212.500 212.500 212.500 212.500 212.500 215.000 215.000 215.000 215.000 215.000 215.000 217.500 217.500 217.500 217.500 217.500 217.500 217.500 220.000 220.000 220.000 220.000 222.500 222.500 222.500 225.000 225.000 225.000 225.000 227.500 227.500 230.000 230.000 230.000 232.500 235.000 235.000 237.500 237.500 238.515 239.744 241.263 243.188 245.708 249.148 254.124 261.963 276.131 309.479
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
84 81 81 81 0 81 81 84 84 72 72 57 54 0 54 66 66 87 75 69 72 75 72 75 75 75 78 75 75 75 78 66 69 54 54 75 69 0 72 75 72 87 87 102 99 102 105 105 99 105 105 102 102 102 99 102 102 102 93 87 81 75 75 96 96 84 81 81 81 63 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 -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 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="340">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 132.16667 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 154.33333 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 176.5 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 218.628 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0
</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 0.35376927 0.35314414 0.35199788 0.3504718 0.34844965 0.34601614 0.3430702 0.33964738 0.3357888 0.33131224 0.32640406 0.3208713 0.31475306 0.30806717 0.30063042 0.2924594 0.2835998 0.27378997 0.26306203 0.251229 0.23810448 0.22358955 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.22306015 0.22915037 0.23524061 0.24133083 0.24742106 0.25351128 0.2596015 0.26569173 0.27178195 0.27787217 0.2839624 0.29005262 0.29614285 0.30223307 0.3083233 0.31441355 0.32050377 0.326594 0.33268422 0.33877444 0.34486467 0.3509549 0.354 0.3740645 0.41698095 0.46363434 0.51412386 0.5685705 0.6272208 0.69030994 0.75817114 0.83113366 0.9095862 0.9938836 1.0844219 1.1814553 1.2852192 1.3957541 1.5128722 1.6361508 1.7647866 1.8976638 2.033431 2.1704478 2.3070168 2.441549 2.5725014 2.6986668 2.8190842 2.9329727 3.0398962 3.1395016 3.2316418 3.316276 3.3934114 3.463131 3.5255086 3.5806863 3.6287665 3.6698592 3.7040696 3.7314997 3.7522092 3.7662613 3.7737007 3.775 3.774725 3.771318 3.7641697 3.7534697 3.7394078 3.722174 3.7019565 3.6789422 3.653314 3.6252518 3.5949311 3.5625224 3.5281913 3.4920979 3.4543958 3.4152336 3.3747535 3.3330908 3.2903757 3.2467315 3.2022753 3.157118 3.1113653 3.065116 3.0184634 2.9714956 2.9242952 2.8769388 2.8294992 2.7820432 2.7346334 2.687328 2.640181 2.593242 2.5465567 2.5001674 2.4541128 2.4084282 2.3631456 2.3182945 2.2739012 2.2299898 2.186581 2.1436942 2.1013463 2.0595517 2.0183234 1.9776727 1.9376087 1.8981392 1.8592707 1.8210083 1.7833556 1.7463154 1.7098892 1.6740775 1.63888 1.6042957 1.5703226 1.536958 1.5041986 1.4720404 1.4404793 1.4095103 1.379128 1.3493266 1.3201003 1.2914424 1.2633466 1.2358055 1.2088124 1.1823596 1.1564399 1.1310456 1.1061687 1.0818018 1.0579367 1.0345653 1.0116799 0.9892723 0.9673344 0.94585824 0.9248357 0.9042587 0.88411945 0.8644098 0.845122 0.82624805 0.80778027 0.789711 0.7720325 0.75473726 0.7378178 0.7212668 0.7050769 0.6892409 0.6737517 0.6586023 0.6437859 0.6292955 0.6151246 0.6012665 0.5877148 0.574463 0.5615049 0.5488343 0.53644526 0.5243316 0.5124877 0.5009077 0.48958597 0.478517 0.4676953 0.45711562 0.44677266 0.43666136 0.42677665 0.41711363 0.40766743 0.39843336 0.3894067 0.38058302 0.37195778 0.36352664 0.3552853 0.3472296 0.33935544 0.3316588 0.32413575 0.31678241 0.30959505 0.30256996 0.29570353 0.28899226 0.28243265 0.2760213 0.26975498 0.26363036 0.2576443 0.2517937 0.24607556 0.24048686 0.23502472 0.22968629 0.22446878 0.21936952 0.2143858 0.20951502 0.20475468 0.20010227 0.19555534 0.19111155 0.18676853 0.18252406 0.17837587 0.1743218 0.17035973 0.16648759 0.16270332 0.15900497 0.15539056 0.15185823 0.14840609 0.14503235 0.14173521 0.13851295 0.13536389 0.13228634 0.1292787 0.1263394 0.123466864 0.12065959 0.1179161 0.11523494 0.112614706 0.110054016 0.107551515 0.105105884 0.102715835 0.1003801 0.09809746 0.095866695 0.09368664 0.09155614 0.08947407 0.08743932 0.08545083 0.08350754 0.08160843 0.0797525 0.07793876 0.07616625 0.07443405 0.072741225 0.07108689 0.069470175 0.06789021 0.06634618 0.064837255 0.06336264 0.061921556 0.06051324 0.05913695 0.057791952 0.056477543 0.055193022 0.053937715 0.05271095 0.051512085 0.050340485

</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="3.775" PeakHeight="218.628" Num="5" zHalfNm="200.764" Error="0.429">
-44.535 4.111 -2.42 0.863 -0.147
</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="6502.167" A="-2.79250174E11" B="8.6188328E7" C="-6650.2085" Error="0.00132"/>
<QuasiParabolic ID="2" StartDistance="6502.167" EndDistance="6524.333" A="0.0" B="3595.1335" C="-0.50489026" Error="0.0379"/>
<QuasiParabolic ID="3" StartDistance="6524.333" EndDistance="6546.0" A="1.21899735E10" B="-3882413.8" C="308.7409" Error="0.0379"/>
<QuasiParabolic ID="4" StartDistance="6546.0" EndDistance="6547.0" A="2.25663496E13" B="-6.8948572E9" C="526658.8" Error="0.0"/>
<QuasiParabolic ID="5" StartDistance="6547.0" EndDistance="6555.0" A="9.2712301E12" B="-2.83341824E9" C="216483.22" Error="0.0327"/>
<QuasiParabolic ID="6" StartDistance="6555.0" EndDistance="6572.0" A="3.44008174E13" B="-1.05007217E10" C="801327.1" Error="0.0306"/>
<QuasiParabolic ID="7" StartDistance="6572.0" EndDistance="6583.0" A="-3.8814316E13" B="1.17802066E10" C="-893813.56" Error="0.00769"/>
<QuasiParabolic ID="8" StartDistance="6583.0" EndDistance="6588.628" A="-4.6550349E13" B="1.41305129E10" C="-1072326.9" Error="7.56E-5"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="66.5" Depth="0.135"/>
<TopsideChapman PeakHeight="218.628" PeakDensity="176806.77" PeakScaleHeight="13.582" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
