<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-14 -104 06:15:00.000"
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" >
2026.04.14 (104) 06:15:00</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">
FF202610404140615001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.925" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.693" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="10.802" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.200" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.200" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.300" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="235.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="235.000" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.775" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="268.453" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.200" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.200" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="242.734" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="223.716" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.265" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="27.189" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.663" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.527" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="26.380" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.400" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="30">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
235.000 235.833 236.667 237.500 240.000 240.000 240.000 241.250 242.500 245.000 245.000 245.000 247.500 250.000 250.000 252.500 252.500 255.000 257.500 260.000 260.000 262.500 265.000 268.453 272.581 277.601 283.838 291.797 302.304 316.815
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
72 0 0 60 60 57 57 0 72 87 87 75 75 69 72 72 72 69 72 66 72 69 69 69 0 0 48 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 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="367">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 139.16667 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 168.33333 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 197.5 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 242.734 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0
</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 0.35347393 0.352762 0.35175505 0.3505324 0.3489521 0.3470975 0.34497866 0.3425364 0.33978727 0.33674988 0.3333779 0.32963315 0.32561377 0.321167 0.3164043 0.31120363 0.30563802 0.29957724 0.29311055 0.28615454 0.27862445 0.27052397 0.26174292 0.2523066 0.24211602 0.23105234 0.21895285 0.20588575 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 0.20352 0.2088 0.21408 0.21936 0.22464 0.22992 0.2352 0.24048 0.24576 0.25104 0.25632 0.2616 0.26688 0.27216 0.27744 0.28272 0.288 0.29328 0.29856 0.30384 0.30912 0.3144 0.31968 0.32496 0.33024 0.33552 0.3408 0.34608 0.35136 0.354 0.36954013 0.4037128 0.44182873 0.48347005 0.5281758 0.5755191 0.62518954 0.6770297 0.73096853 0.78701115 0.84522706 0.9057136 0.96860063 1.034022 1.1020597 1.1728511 1.246441 1.3228439 1.4020032 1.4837816 1.5679201 1.6540214 1.7416029 1.8299929 1.9184978 2.0063148 2.09261 2.1765907 2.2575572 2.3348973 2.4081109 2.4768233 2.5407782 2.599816 2.6538315 2.7028136 2.7467587 2.7857163 2.8197424 2.8489027 2.873259 2.8928766 2.907805 2.9180913 2.9237628 2.925 2.9249046 2.9228702 2.918278 2.9112475 2.901899 2.890353 2.876729 2.861146 2.8437212 2.8245695 2.8038044 2.781536 2.7578719 2.7329164 2.7067702 2.6795313 2.6512938 2.622148 2.5921807 2.5614753 2.5301108 2.4981635 2.4657052 2.4328043 2.3995261 2.365932 2.3320801 2.2980254 2.2638195 2.229511 2.1951454 2.1607656 2.1264117 2.0921204 2.057927 2.023863 1.9899592 1.9562429 1.9227396 1.8894731 1.8564646 1.8237344 1.7913002 1.7591785 1.7273843 1.695931 1.6648304 1.6340938 1.6037301 1.5737481 1.5441549 1.514957 1.4861594 1.457767 1.4297831 1.4022107 1.375052 1.3483083 1.3219807 1.2960694 1.2705741 1.245494 1.220828 1.1965746 1.1727315 1.1492965 1.126267 1.1036398 1.0814118 1.0595796 1.0381393 1.0170871 0.9964187 0.97613 0.95621663 0.93667394 0.91749734 0.89868206 0.88022333 0.86211616 0.8443557 0.8269369 0.80985475 0.7931041 0.77668 0.7605772 0.7447907 0.72931534 0.714146 0.69927776 0.6847054 0.6704239 0.6564284 0.6427138 0.6292752 0.6161077 0.60320646 0.5905667 0.5781836 0.56605256 0.5541688 0.5425279 0.5311252 0.51995623 0.50901663 0.49830195 0.48780796 0.4775304 0.46746507 0.4576079 0.4479548 0.4385018 0.429245 0.42018047 0.41130444 0.40261322 0.39410305 0.38577038 0.37761164 0.36962333 0.36180207 0.35414442 0.3466471 0.3393069 0.33212057 0.325085 0.31819716 0.31145397 0.30485252 0.29838985 0.29206318 0.28586966 0.27980658 0.27387124 0.26806098 0.26237324 0.25680548 0.2513552 0.24602 0.24079745 0.23568521 0.230681 0.22578256 0.22098769 0.21629423 0.21170005 0.20720309 0.2028013 0.19849269 0.19427533 0.19014728 0.18610668 0.18215169 0.1782805 0.17449138 0.17078258 0.16715242 0.16359922 0.1601214 0.15671735 0.15338552 0.15012437 0.14693244 0.14380825 0.14075036 0.13775739 0.13482797 0.13196073 0.1291544 0.12640765 0.12371924 0.12108793 0.11851252 0.11599182 0.113524675 0.11110994 0.10874653 0.10643333 0.10416929 0.101953365 0.09978454 0.097661816 0.09558421 0.093550764 0.09156054 0.08961264 0.08770615 0.08584019 0.0840139 0.08222645 0.08047701 0.07876476 0.07708892 0.07544873 0.07384341 0.07227224 0.07073448 0.069229424 0.067756385 0.066314675 0.064903624 0.06352259 0.062170938 0.06084803 0.059553266 0.058286045 0.05704578 0.055831898 0.054643843 0.05348106 0.052343015 0.05122918 0.050139043

</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="2.925" PeakHeight="242.734" Num="5" zHalfNm="223.716" Error="1.082">
-46.564 2.391 -1.661 0.926 -0.326
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="7" 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="6509.167" A="-1.78385355E11" B="5.5057208E7" C="-4248.116" Error="0.00152"/>
<QuasiParabolic ID="2" StartDistance="6509.167" EndDistance="6538.333" A="0.0" B="-2744.084" C="0.4615896" Error="0.0474"/>
<QuasiParabolic ID="3" StartDistance="6538.333" EndDistance="6567.0" A="1.08458082E11" B="-3.3235706E7" C="2546.2065" Error="0.0474"/>
<QuasiParabolic ID="4" StartDistance="6567.0" EndDistance="6580.0" A="8.2887888E12" B="-2.52458061E9" C="192232.89" Error="0.0578"/>
<QuasiParabolic ID="5" StartDistance="6580.0" EndDistance="6597.0" A="1.57633636E13" B="-4.7964877E9" C="364870.22" Error="0.0279"/>
<QuasiParabolic ID="6" StartDistance="6597.0" EndDistance="6612.734" A="-2.43139126E13" B="7.353664E9" C="-556014.44" Error="0.0108"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="87.5" Depth="0.154"/>
<TopsideChapman PeakHeight="242.734" PeakDensity="106149.195" PeakScaleHeight="14.527" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
