<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-19 -139 22:45:00.000"
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: 90% PACIFIC flags: One of F2 cusps was derived from the other</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.19 (139) 22:45:00</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">
FF202613905192245001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.550" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.753" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.323" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.975" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.975" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.875" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="230.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="230.000" 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="0.150" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.350" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="258.438" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.975" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.975" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="239.154" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="221.236" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="4.617" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="25.678" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.912" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="13.652" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="25.010" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.350" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="24">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
230.000 232.500 232.500 235.000 235.000 237.500 237.500 240.000 240.000 242.500 247.500 247.500 250.000 252.500 255.000 258.438 262.393 266.991 272.403 278.867 286.722 296.470 308.890 325.257
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
81 81 84 81 84 84 87 87 111 108 96 96 93 93 93 93 93 90 90 90 75 66 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="356">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 239.154 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0
</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 0.35339895 0.35261247 0.3516065 0.35023698 0.34851307 0.34651887 0.34419376 0.34155348 0.33854687 0.33526585 0.33153415 0.32752004 0.32306805 0.31823066 0.3130061 0.3072951 0.30113927 0.29447237 0.28732234 0.2796049 0.2711702 0.2621697 0.25230387 0.24165411 0.23006094 0.21740833 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 0.2055 0.211 0.2165 0.222 0.2275 0.233 0.2385 0.244 0.2495 0.255 0.2605 0.266 0.2715 0.277 0.2825 0.288 0.2935 0.299 0.3045 0.31 0.3155 0.321 0.3265 0.332 0.3375 0.343 0.3485 0.354 0.39132512 0.43195564 0.47563186 0.522156 0.5714065 0.62335557 0.67801577 0.7355006 0.79592544 0.85944444 0.9262608 0.99654245 1.070513 1.1483754 1.2302972 1.3164153 1.4068344 1.5015724 1.6005305 1.7034982 1.8100997 1.9197993 2.0318358 2.145346 2.2593284 2.3726678 2.4842644 2.5930722 2.6981158 2.79857 2.89376 2.9831698 3.066409 3.1432395 3.2134492 3.276984 3.3338068 3.3839097 3.4273229 3.4640946 3.4942799 3.517916 3.5350487 3.545711 3.5499237 3.55 3.548686 3.5438416 3.5355966 3.5241268 3.5096083 3.4922163 3.4721248 3.449505 3.4245257 3.3973513 3.3681424 3.3370552 3.3042407 3.269845 3.2340086 3.1968663 3.1585474 3.1191757 3.0788689 3.037739 2.9958928 2.9534304 2.9104478 2.8670347 2.8232756 2.7792504 2.7350333 2.6906948 2.6462996 2.6019087 2.5575786 2.5133622 2.4693077 2.42546 2.381861 2.3385484 2.295557 2.252919 2.210663 2.1688159 2.1274009 2.0864396 2.0459514 2.005953 1.9664598 1.9274848 1.8890395 1.8511338 1.813776 1.7769731 1.7407308 1.7050533 1.669944 1.6354052 1.6014379 1.5680428 1.5352193 1.502966 1.4712813 1.4401625 1.4096065 1.3796095 1.3501675 1.3212758 1.2929295 1.2651232 1.2378513 1.2111077 1.1848863 1.1591808 1.1339842 1.10929 1.0850911 1.0613805 1.038151 1.0153953 0.99310607 0.971276 0.94989747 0.9289632 0.9084657 0.8883974 0.868751 0.849519 0.830694 0.8122687 0.79423565 0.7765877 0.75931764 0.7424183 0.72588265 0.7097036 0.6938744 0.67838806 0.6632379 0.6484173 0.63391954 0.6197383 0.605867 0.5922995 0.57902956 0.56605107 0.55335796 0.5409444 0.52880454 0.51693267 0.5053231 0.49397045 0.4828692 0.47201404 0.46139973 0.45102116 0.4408733 0.43095115 0.42124993 0.41176483 0.4024912 0.39342448 0.38456017 0.3758939 0.3674213 0.3591382 0.35104042 0.34312394 0.3353848 0.32781905 0.32042292 0.31319267 0.30612466 0.2992153 0.29246107 0.28585857 0.2794044 0.27309534 0.2669281 0.26089957 0.25500667 0.24924636 0.24361572 0.23811184 0.2327319 0.22747314 0.22233285 0.21730839 0.21239717 0.20759666 0.20290437 0.1983179 0.19383487 0.18945296 0.1851699 0.18098348 0.17689154 0.17289194 0.16898263 0.16516156 0.16142677 0.1577763 0.15420827 0.1507208 0.14731212 0.14398043 0.140724 0.13754113 0.13443018 0.13138953 0.12841757 0.12551278 0.12267364 0.119898655 0.117186405 0.11453545 0.11194443 0.10941197 0.10693677 0.10451753 0.10215298 0.09984189 0.09758307 0.095375314 0.093217485 0.09110845 0.08904711 0.087032385 0.08506323 0.08313861 0.081257515 0.079418965 0.077622 0.07586568 0.07414909 0.07247132 0.07083151 0.06922878 0.06766232 0.066131294 0.0646349 0.063172355 0.061742898 0.060345784 0.05898027 0.057645656 0.05634123 0.05506632 0.053820252 0.052602377 0.051412057 0.050248668

</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="3.55" PeakHeight="239.154" Num="5" zHalfNm="221.236" Error="1.479">
-45.939 1.719 -1.619 0.912 -0.227
</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="6508.0" A="-1.93482834E11" B="5.9716924E7" C="-4607.662" Error="0.00161"/>
<QuasiParabolic ID="2" StartDistance="6508.0" EndDistance="6536.0" A="0.0" B="1666.0084" C="-0.21597092" Error="0.0268"/>
<QuasiParabolic ID="3" StartDistance="6536.0" EndDistance="6561.0" A="2.63176008E10" B="-8164053.0" C="633.0702" Error="0.0268"/>
<QuasiParabolic ID="4" StartDistance="6561.0" EndDistance="6565.0" A="3.73618246E12" B="-1.13904806E9" C="86815.36" Error="0.0472"/>
<QuasiParabolic ID="5" StartDistance="6565.0" EndDistance="6571.0" A="9.5870675E12" B="-2.92149581E9" C="222569.19" Error="0.0394"/>
<QuasiParabolic ID="6" StartDistance="6571.0" EndDistance="6573.0" A="1.68751936E12" B="-5.17128768E8" C="39616.285" Error="0.00118"/>
<QuasiParabolic ID="7" StartDistance="6573.0" EndDistance="6595.0" A="2.25543811E13" B="-6.8663946E9" C="522597.1" Error="0.0478"/>
<QuasiParabolic ID="8" StartDistance="6595.0" EndDistance="6609.154" A="-4.0883286E13" B="1.23717151E10" C="-935940.4" Error="0.00984"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="84.0" Depth="0.154"/>
<TopsideChapman PeakHeight="239.154" PeakDensity="156358.56" PeakScaleHeight="13.652" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
