<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-03-29 -088 00:40:00.000"
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 33 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 60% PACIFIC flags: Multiple candidates for F2x cusp, Multiple candidates for F2o cusp, One of F2 cusps was derived from the other, Unidentified traces above foF2</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.03.29 (088) 00:40:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.18" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.97" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="82.25368" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202608803290040001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="8.000" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.689" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="29.515" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="4.975" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="4.975" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="8.275" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="272.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="272.500" 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="0.025" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="7.975" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="293.321" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="4.975" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="4.975" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="267.190" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="254.028" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="5.934" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="19.960" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="3.612" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="10.583" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="22.170" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.440" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="122">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
4.975 5.0 5.025 5.05 5.075 5.1 5.125 5.15 5.175 5.2 5.225 5.25 5.275 5.3 5.325 5.35 5.375 5.4 5.425 5.45 5.475 5.5 5.525 5.55 5.575 5.6 5.625 5.65 5.675 5.7 5.725 5.75 5.775 5.8 5.825 5.85 5.875 5.9 5.925 5.95 5.975 6.0 6.025 6.05 6.075 6.1 6.125 6.15 6.175 6.2 6.225 6.25 6.275 6.3 6.325 6.35 6.375 6.4 6.425 6.45 6.475 6.5 6.525 6.55 6.575 6.6 6.625 6.65 6.675 6.7 6.725 6.75 6.775 6.8 6.825 6.85 6.875 6.9 6.925 6.95 6.975 7.0 7.025 7.05 7.075 7.1 7.125 7.15 7.175 7.2 7.225 7.25 7.275 7.3 7.325 7.35 7.375 7.4 7.425 7.45 7.475 7.5 7.525 7.55 7.575 7.6 7.625 7.65 7.675 7.7 7.725 7.75 7.775 7.8 7.825 7.85 7.875 7.9 7.925 7.95 7.975 8.0
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
272.500 272.500 272.500 272.500 272.500 272.500 272.500 272.500 272.500 272.500 275.000 275.000 275.000 275.000 275.000 275.000 275.000 275.000 275.000 275.000 275.000 275.000 275.217 275.435 275.652 275.870 276.087 276.304 276.522 276.739 276.957 277.174 277.391 277.609 277.826 278.043 278.261 278.478 278.696 278.913 279.130 279.348 279.565 279.783 280.000 280.000 280.313 280.625 280.938 281.250 281.563 281.875 282.188 282.500 282.500 282.500 282.500 282.500 282.500 282.500 282.500 282.500 282.500 282.500 282.857 283.214 283.571 283.929 284.286 284.643 285.000 285.000 285.000 285.000 285.000 285.000 287.500 286.667 285.833 285.000 285.000 285.000 285.000 285.000 285.000 285.000 287.500 287.500 287.500 287.500 287.500 287.500 287.500 290.000 290.000 290.000 290.000 290.000 290.000 290.000 290.000 290.000 290.000 290.000 290.000 292.500 292.500 292.500 292.500 292.500 293.000 293.500 294.000 294.500 295.000 292.500 292.500 292.500 292.500 292.500 293.321 295.777
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
63 0 63 0 0 0 0 0 0 0 99 0 0 99 99 99 99 99 63 60 60 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 96 96 0 0 0 0 0 0 0 0 0 96 96 0 0 96 96 0 0 0 0 0 0 0 0 0 0 0 102 99 60 63 0 0 0 84 84 81 0 0 0 0 0 0 0 0 0 96 96 96 0 0 0 99 0 0 102 0 96 0 0 81 0 0 0 0 0 0 0 0 0 0 0 0 0 0 99 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 -7.8125 -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="367">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 145.611 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 181.222 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 216.833 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 267.19 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0
</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 0.35362422 0.35313663 0.35250106 0.35164472 0.35064512 0.34943143 0.34800863 0.34638256 0.3445599 0.34254822 0.3402861 0.3378544 0.33519557 0.33232397 0.32925496 0.32594153 0.32234406 0.3185507 0.31446972 0.310138 0.30553994 0.30061853 0.2953616 0.28982055 0.2839875 0.27771303 0.2710725 0.26399302 0.2564626 0.24843983 0.23987772 0.2307261 0.22091414 0.21033452 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 0.20336446 0.20768897 0.21201348 0.21633798 0.22066249 0.224987 0.22931151 0.233636 0.23796052 0.24228503 0.24660952 0.25093403 0.25525853 0.25958306 0.26390755 0.26823208 0.27255657 0.27688107 0.2812056 0.2855301 0.2898546 0.2941791 0.2985036 0.3028281 0.30715263 0.31147712 0.31580162 0.32012615 0.32445064 0.32877517 0.33309966 0.33742416 0.34174868 0.34607318 0.35039768 0.354 0.37304616 0.44738266 0.5092974 0.57067597 0.6348533 0.70380044 0.7791438 0.86233085 0.954702 1.0573671 1.1710631 1.2958442 1.4311323 1.5755931 1.7275131 1.8850048 2.0464265 2.2104461 2.375998 2.5424802 2.709426 2.8766534 3.0440285 3.211607 3.379401 3.5475197 3.7161453 3.885379 4.05543 4.226428 4.398564 4.5720243 4.7469907 4.9236984 5.1023073 5.2830153 5.466052 5.651605 5.839875 6.0310483 6.2252817 6.422587 6.6229887 6.826086 7.0312204 7.2367845 7.4396067 7.6334047 7.8062754 7.9373326 7.9983325 8.0 7.9954967 7.977971 7.948015 7.9064803 7.8542147 7.792057 7.7208285 7.6413307 7.5543385 7.460598 7.360823 7.2556953 7.14586 7.031929 6.914477 6.794042 6.6711287 6.546207 6.419711 6.2920446 6.163579 6.0346556 5.9055867 5.7766576 5.6481285 5.5202336 5.393186 5.2671757 5.142373 5.0189304 4.896982 4.7766457 4.658025 4.5412083 4.426273 4.3132834 4.202294 4.093348 3.986481 3.8817196 3.7790833 3.6785843 3.5802293 3.4840188 3.389949 3.2980113 3.2081928 3.1204777 3.034846 2.951276 2.869743 2.7902205 2.7126796 2.6370902 2.5634208 2.4916384 2.42171 2.3536005 2.2872756 2.2226992 2.1598358 2.0986497 2.0391042 1.9811639 1.9247922 1.8699535 1.8166122 1.764733 1.7142808 1.6652211 1.6175197 1.5711429 1.5260574 1.4822307 1.4396304 1.3982252 1.3579838 1.3188759 1.2808717 1.2439421 1.2080582 1.1731921 1.1393166 1.1064045 1.07443 1.0433674 1.0131917 0.98387855 0.9554041 0.9277452 0.90087926 0.8747841 0.8494383 0.8248209 0.8009114 0.77769 0.75513726 0.73323435 0.7119628 0.6913049 0.6712432 0.6517607 0.632841 0.614468 0.59662616 0.57930034 0.5624757 0.546138 0.53027326 0.5148679 0.49990878 0.48538306 0.4712783 0.4575824 0.44428357 0.4313704 0.41883177 0.4066569 0.39483523 0.38335666 0.37221125 0.36138937 0.35088164 0.34067905 0.3307727 0.3211541 0.31181484 0.3027469 0.29394236 0.28539366 0.27709332 0.2690342 0.2612093 0.2536118 0.24623513 0.23907287 0.2321188 0.22536689 0.21881127 0.21244624 0.20626628 0.200266 0.19444019 0.18878378 0.18329185 0.17795964 0.1727825 0.1677559 0.1628755 0.15813704 0.1535364 0.14906956 0.14473264 0.14052187 0.13643359 0.13246422 0.1286103 0.1248685 0.121235535 0.11770826 0.114283584 0.11095854 0.107730225 0.10459582 0.1015526 0.098597914 0.09572919 0.092943914 0.090239674 0.087614104 0.085064925 0.08258991 0.080186896 0.0778538 0.075588584 0.07338926 0.07125394 0.069180734 0.06716785 0.06521353 0.06331607 0.061473817 0.059685163 0.057948552 0.056262467 0.05462544 0.05303604 0.051492885

</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="8.0" PeakHeight="267.19" Num="5" zHalfNm="254.028" Error="1.493">
-45.618 -9.781 7.403 -3.792 1.431
</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="6515.611" A="-1.19878181E11" B="3.699944E7" C="-2854.7695" Error="0.00172"/>
<QuasiParabolic ID="2" StartDistance="6515.611" EndDistance="6551.222" A="0.0" B="6311.956" C="-0.9287077" Error="0.131"/>
<QuasiParabolic ID="3" StartDistance="6551.222" EndDistance="6581.0" A="-5.2507726E10" B="1.5889606E7" C="-1201.9783" Error="0.131"/>
<QuasiParabolic ID="4" StartDistance="6581.0" EndDistance="6587.0" A="2.1030176E12" B="-6.3918573E8" C="48568.215" Error="0.16"/>
<QuasiParabolic ID="5" StartDistance="6587.0" EndDistance="6595.0" A="1.78344448E13" B="-5.4156928E9" C="411138.97" Error="0.136"/>
<QuasiParabolic ID="6" StartDistance="6595.0" EndDistance="6635.0" A="6.3945499E13" B="-1.93993339E10" C="1471308.9" Error="0.0736"/>
<QuasiParabolic ID="7" StartDistance="6635.0" EndDistance="6637.19" A="-1.24800381E15" B="3.76063918E11" C="-2.832999E7" Error="0.00139"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="106.833" Depth="0.154"/>
<TopsideChapman PeakHeight="267.19" PeakDensity="794044.7" PeakScaleHeight="10.583" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
