<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-09 -099 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: 95% PACIFIC flags: Multiple candidates for F2x cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.09 (099) 07:35:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.97" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202609904090735001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.625" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.724" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.501" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.475" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.475" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.950" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="222.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="222.500" 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="3.450" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="265.137" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.475" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.475" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="238.035" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="215.874" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.776" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="31.599" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.172" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="17.207" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="27.790" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.420" 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" >
2.475 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
222.500 222.500 222.500 223.333 224.167 225.000 225.000 225.000 225.625 226.250 226.875 227.500 228.333 229.167 230.000 232.500 232.500 233.125 233.750 234.375 235.000 235.000 237.500 237.500 240.000 240.000 242.500 242.500 245.000 245.000 247.500 247.500 250.000 252.500 252.500 255.000 257.001 259.303 261.982 265.137 268.909 273.495 279.195 286.467 296.068 309.329 328.836
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 69 69 0 0 69 66 66 0 0 0 66 0 0 45 45 57 0 0 0 69 72 81 84 93 96 96 99 96 99 99 102 102 99 99 99 99 96 96 99 87 84 84 78 81 75 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="413">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 136.25 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 162.5 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 188.75 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 238.035 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0
</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 0.35332385 0.3524629 0.35123456 0.3496469 0.3477836 0.34551057 0.34284618 0.3398121 0.3363646 0.33256927 0.32832938 0.32366115 0.31855893 0.31297255 0.3068771 0.30027556 0.29307804 0.2853064 0.27685073 0.26765716 0.25764734 0.24675402 0.23483722 0.22173925 0.20734549 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 0.20293333 0.2088 0.21466666 0.22053333 0.2264 0.23226666 0.23813333 0.244 0.24986666 0.25573334 0.2616 0.26746666 0.27333334 0.2792 0.28506666 0.29093334 0.2968 0.30266666 0.30853334 0.3144 0.32026666 0.32613334 0.332 0.33786666 0.34373334 0.3496 0.354 0.36068815 0.39081663 0.42682958 0.46882218 0.5160967 0.56747216 0.62184757 0.67848665 0.7370698 0.7975618 0.86014116 0.9250691 0.9927363 1.0635675 1.1380428 1.2167279 1.3002086 1.3891407 1.4841552 1.5858792 1.6947489 1.8108685 1.9337465 2.0621338 2.1938193 2.3258088 2.4549627 2.5784721 2.6943893 2.8016276 2.8999007 2.9893873 3.0705652 3.1439981 3.2103179 3.2701006 3.3238857 3.3721385 3.4152827 3.4536703 3.4876194 3.5173864 3.5431929 3.5652275 3.5836437 3.5985692 3.6101036 3.618321 3.6232748 3.6249933 3.625 3.6238997 3.6204941 3.6148705 3.6071181 3.597327 3.5855868 3.5719867 3.5566158 3.5395622 3.5209126 3.500753 3.4791667 3.456237 3.4320445 3.4066675 3.380183 3.3526657 3.3241878 3.2948198 3.2646296 3.2336826 3.2020426 3.1697702 3.1369245 3.1035614 3.0697353 3.0354977 3.0008986 2.9659853 2.9308028 2.895394 2.8598008 2.8240612 2.7882128 2.7522907 2.7163281 2.6803565 2.6444056 2.6085033 2.5726764 2.5369496 2.501346 2.465888 2.4305959 2.3954887 2.3605843 2.3258996 2.29145 2.2572498 2.2233124 2.1896498 2.1562734 2.1231937 2.09042 2.057961 2.0258245 1.9940176 1.9625465 1.9314169 1.9006338 1.8702016 1.840124 1.8104044 1.7810454 1.7520493 1.7234179 1.6951525 1.6672541 1.6397232 1.61256 1.5857644 1.5593358 1.5332737 1.507577 1.4822441 1.457274 1.4326645 1.408414 1.38452 1.3609805 1.3377929 1.3149544 1.2924623 1.270314 1.2485061 1.2270356 1.2058992 1.1850939 1.1646159 1.144462 1.1246285 1.1051121 1.0859089 1.0670154 1.0484277 1.0301423 1.0121554 0.99446315 0.9770618 0.9599475 0.94311655 0.9265651 0.9102893 0.8942854 0.8785495 0.863078 0.847867 0.8329128 0.8182117 0.80375993 0.78955376 0.77558964 0.7618639 0.74837285 0.735113 0.7220808 0.7092727 0.6966852 0.6843149 0.6721583 0.6602121 0.64847296 0.63693756 0.62560254 0.6144648 0.6035211 0.59276825 0.5822032 0.5718228 0.5616241 0.55160403 0.54175967 0.53208804 0.5225864 0.5132518 0.5040814 0.49507257 0.4862225 0.47752857 0.4689881 0.46059847 0.45235714 0.4442616 0.43630934 0.42849788 0.42082486 0.41328788 0.4058846 0.3986127 0.39146996 0.3844541 0.37756294 0.37079433 0.36414614 0.35761625 0.35120264 0.34490326 0.33871612 0.33263928 0.32667077 0.3208087 0.31505126 0.30939656 0.30384284 0.29838827 0.29303116 0.28776976 0.2826024 0.2775274 0.27254316 0.26764807 0.26284054 0.25811905 0.25348204 0.24892807 0.2444556 0.24006325 0.23574956 0.23151314 0.22735262 0.22326666 0.21925393 0.21531312 0.21144298 0.20764221 0.2039096 0.20024395 0.19664404 0.19310872 0.18963681 0.18622722 0.18287879 0.17959048 0.17636117 0.17318985 0.17007545 0.16701697 0.1640134 0.16106376 0.15816711 0.15532246 0.15252893 0.14978555 0.14709146 0.14444578 0.14184763 0.13929616 0.13679053 0.13432993 0.13191354 0.12954058 0.12721026 0.124921836 0.12267453 0.12046763 0.1183004 0.11617212 0.114082105 0.112029664 0.110014126 0.10803482 0.106091104 0.10418234 0.10230789 0.10046715 0.098659515 0.096884385 0.09514117 0.09342931 0.09174824 0.0900974 0.08847624 0.08688425 0.08532089 0.08378565 0.08227803 0.080797516 0.07934364 0.077915914 0.07651387 0.07513705 0.07378499 0.07245726 0.07115341 0.06987302 0.06861566 0.06738092 0.0661684 0.06497769 0.063808404 0.06266015 0.061532557 0.06042525 0.05933787 0.058270052 0.057221442 0.056191705 0.055180494 0.054187477 0.053212326 0.05225472 0.05131435 0.050390895

</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="3.625" PeakHeight="238.035" Num="5" zHalfNm="215.874" Error="1.277">
-54.304 8.755 -5.596 2.796 -0.936
</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="6506.25" A="-2.20048884E11" B="6.791632E7" C="-5240.3315" Error="0.00141"/>
<QuasiParabolic ID="2" StartDistance="6506.25" EndDistance="6532.5" A="0.0" B="65.55265" C="0.029937288" Error="6.97E-4"/>
<QuasiParabolic ID="3" StartDistance="6532.5" EndDistance="6557.0" A="6.3204823E10" B="-1.9451416E7" C="1496.5533" Error="7.38E-4"/>
<QuasiParabolic ID="4" StartDistance="6557.0" EndDistance="6558.0" A="6.2819585E11" B="-1.91783584E8" C="14637.637" Error="0.0"/>
<QuasiParabolic ID="5" StartDistance="6558.0" EndDistance="6571.0" A="8.8389232E12" B="-2.69581747E9" C="205552.08" Error="0.0153"/>
<QuasiParabolic ID="6" StartDistance="6571.0" EndDistance="6576.0" A="2.2183634E13" B="-6.7575163E9" C="514614.56" Error="0.00285"/>
<QuasiParabolic ID="7" StartDistance="6576.0" EndDistance="6584.0" A="4.6228096E13" B="-1.40703089E10" C="1070635.9" Error="0.00964"/>
<QuasiParabolic ID="8" StartDistance="6584.0" EndDistance="6608.035" A="-2.51180593E13" B="7.6022779E9" C="-575216.7" Error="0.0152"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="78.75" Depth="0.154"/>
<TopsideChapman PeakHeight="238.035" PeakDensity="163035.05" PeakScaleHeight="17.207" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
