<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-09 -129 02:25:00.000"
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: Multiple candidates for F2x cusp, Multiple candidates for F2o cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.09 (129) 02:25:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.21" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.99" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="75.82641" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202612905090225001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.250" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.619" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.761" 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="3.625" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="265.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="265.000" 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="3.100" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="280.743" 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="261.072" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="243.267" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.006" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="25.492" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.770" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="13.703" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="24.040" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.760" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="13">
<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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
265.000 265.000 267.500 270.000 275.000 277.500 280.743 284.897 290.408 298.071 309.450 328.116 364.365
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
60 66 66 78 78 90 87 90 87 84 87 96 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="378">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 146.16667 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 182.33333 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 218.5 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 261.072 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0
</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 0.35362422 0.35321164 0.35257575 0.35171902 0.35071892 0.34950462 0.34815413 0.3465988 0.34484506 0.3429001 0.34070218 0.33833194 0.335799 0.33304724 0.3300264 0.32682016 0.3233834 0.31967828 0.3157338 0.31158027 0.30708545 0.3023534 0.2973057 0.29203182 0.28632477 0.2803815 0.27398396 0.26722857 0.25997394 0.25233078 0.2441541 0.23540089 0.22610123 0.21613485 0.20538878 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 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2028387 0.20709677 0.21135484 0.2156129 0.21987097 0.22412904 0.2283871 0.23264515 0.23690322 0.24116129 0.24541935 0.24967742 0.2539355 0.25819355 0.26245162 0.2667097 0.27096775 0.27522582 0.27948388 0.28374192 0.288 0.29225805 0.29651612 0.3007742 0.30503225 0.30929032 0.3135484 0.31780645 0.32206452 0.3263226 0.33058065 0.33483872 0.33909678 0.34335485 0.34761292 0.35187095 0.354 0.36940002 0.40488777 0.4469332 0.4951366 0.54839605 0.6054696 0.6654029 0.72768503 0.7921708 0.85889894 0.9280751 0.99997973 1.0749278 1.1532704 1.2353498 1.3215019 1.4120178 1.5070918 1.6067685 1.7108872 1.8189534 1.9301425 2.0432253 2.156655 2.268699 2.377616 2.4818983 2.5803137 2.6720564 2.7566278 2.8338528 2.9037526 2.9664655 3.0222414 3.071313 3.1139562 3.1504333 3.1809523 3.20572 3.2248979 3.2386134 3.2469573 3.2499862 3.25 3.248565 3.243903 3.2361627 3.2255037 3.2120848 3.1960652 3.1776018 3.1568496 3.1339612 3.1090853 3.0823674 3.0539484 3.0239651 2.9925492 2.959828 2.925923 2.8909519 2.855026 2.8182518 2.7807312 2.74256 2.7038295 2.6646264 2.6250317 2.585122 2.5449698 2.5046425 2.4642036 2.4237118 2.3832228 2.3427875 2.3024538 2.262266 2.2222643 2.182487 2.1429684 2.10374 2.0648313 2.0262682 1.9880751 1.9502735 1.9128829 1.8759208 1.8394028 1.8033427 1.7677525 1.7326429 1.6980227 1.6638999 1.6302806 1.5971702 1.5645728 1.5324914 1.5009282 1.4698843 1.4393601 1.4093556 1.3798695 1.3509002 1.3224455 1.2945026 1.2670683 1.2401388 1.2137101 1.1877776 1.1623367 1.1373821 1.1129087 1.0889108 1.0653825 1.042318 1.0197109 0.99755526 0.9758445 0.95457214 0.9337316 0.91331637 0.8933196 0.8737347 0.8545549 0.8357734 0.81738347 0.7993784 0.78175133 0.76449573 0.74760485 0.731072 0.7148907 0.69905436 0.68355656 0.66839075 0.65355074 0.63903016 0.6248228 0.6109225 0.59732336 0.58401924 0.5710043 0.5582727 0.54581875 0.5336368 0.52172136 0.5100668 0.49866793 0.48751932 0.47661585 0.46595234 0.45552382 0.44532531 0.435352 0.4255991 0.41606194 0.40673593 0.39761657 0.3886994 0.37998015 0.37145454 0.36311838 0.3549676 0.34699818 0.33920622 0.33158782 0.32413924 0.31685677 0.30973676 0.3027757 0.2959701 0.28931656 0.28281173 0.27645236 0.27023524 0.2641572 0.25821525 0.25240633 0.24672751 0.24117592 0.23574877 0.23044327 0.22525673 0.22018652 0.21523006 0.21038482 0.20564832 0.20101814 0.19649193 0.19206735 0.18774217 0.18351415 0.17938112 0.17534098 0.17139164 0.16753106 0.1637573 0.16006836 0.15646239 0.15293752 0.14949194 0.14612386 0.14283155 0.13961332 0.1364675 0.13339247 0.13038665 0.1274485 0.124576464 0.121769086 0.11902491 0.11634252 0.11372052 0.11115757 0.10865232 0.1062035 0.10380982 0.10147005 0.099182986 0.09694743 0.094762236 0.092626266 0.090538405 0.08849759 0.086502746 0.08455285 0.08264688 0.08078386 0.07896281 0.0771828 0.075442895 0.073742196 0.07207983 0.07045492 0.068866625 0.067314126 0.06579661 0.06431331 0.062863424 0.061446223 0.060060963 0.05870692 0.057383403 0.056089714 0.054825183 0.053589158 0.05238099 0.05120006 0.050045744

</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="3.25" PeakHeight="261.072" Num="5" zHalfNm="243.267" Error="1.464">
-44.416 3.43 -2.404 1.377 -0.559
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="8" 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="6516.167" A="-1.16244783E11" B="3.587802E7" C="-2768.2405" Error="0.00174"/>
<QuasiParabolic ID="2" StartDistance="6516.167" EndDistance="6552.333" A="0.0" B="880.8937" C="-0.09515316" Error="0.0178"/>
<QuasiParabolic ID="3" StartDistance="6552.333" EndDistance="6584.0" A="2.35714867E10" B="-7276522.0" C="561.5344" Error="0.0178"/>
<QuasiParabolic ID="4" StartDistance="6584.0" EndDistance="6588.0" A="5.26157021E11" B="-1.5994528E8" C="12155.456" Error="0.0139"/>
<QuasiParabolic ID="5" StartDistance="6588.0" EndDistance="6601.0" A="1.08158486E13" B="-3.28371328E9" C="249235.61" Error="0.0312"/>
<QuasiParabolic ID="6" StartDistance="6601.0" EndDistance="6615.0" A="2.74189768E13" B="-8.3142021E9" C="630275.5" Error="0.0158"/>
<QuasiParabolic ID="7" StartDistance="6615.0" EndDistance="6631.072" A="-3.31084349E13" B="9.9858473E9" C="-752948.1" Error="0.00684"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="108.5" Depth="0.154"/>
<TopsideChapman PeakHeight="261.072" PeakDensity="131048.39" PeakScaleHeight="13.703" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
