<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-23 -113 07:20:00.000"
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" >
2026.04.23 (113) 07:20:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.20" 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">
FF202611304230720001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.575" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.737" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.360" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.125" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.125" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.900" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="227.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="227.500" 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="271.080" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.125" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.125" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="239.903" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="219.351" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.860" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="29.350" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.050" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="15.674" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="27.440" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.680" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="59">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.125 2.15 2.175 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 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
227.500 227.500 227.500 227.500 228.125 228.750 229.375 230.000 230.000 230.000 230.000 230.000 232.500 232.500 232.500 232.500 232.500 235.000 235.000 235.000 235.000 235.000 237.500 237.500 237.500 237.500 237.500 240.000 240.000 240.000 240.000 242.500 243.333 244.167 245.000 245.000 245.000 247.500 247.500 247.500 250.000 250.000 252.500 252.500 255.000 255.000 257.500 257.500 260.000 261.428 263.134 265.210 267.789 271.080 275.425 281.428 290.259 304.535 331.534
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
78 78 69 66 0 0 0 54 54 57 66 66 69 69 72 72 72 69 72 75 75 75 72 75 75 75 60 63 51 51 60 54 0 0 69 72 84 81 84 84 84 84 81 84 96 99 99 99 87 87 111 108 96 96 87 87 81 84 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="391">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 137.41667 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 164.83333 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 192.25 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 239.903 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0
</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 0.35145745 0.35001534 0.348294 0.34623033 0.34376696 0.34099412 0.3378617 0.33439493 0.33055604 0.32631677 0.32166007 0.316581 0.31108782 0.3051483 0.29865354 0.2916688 0.28410435 0.27593207 0.26707086 0.25740978 0.24700987 0.23557876 0.22317484 0.20959583 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 0.20093617 0.20655319 0.21217021 0.21778724 0.22340426 0.22902128 0.2346383 0.24025533 0.24587233 0.25148937 0.2571064 0.26272342 0.26834044 0.27395746 0.27957445 0.28519148 0.2908085 0.29642552 0.30204254 0.30765957 0.3132766 0.3188936 0.32451063 0.33012766 0.33574468 0.3413617 0.34697872 0.35259575 0.354 0.382285 0.42248258 0.46536094 0.51082927 0.55888224 0.6095873 0.6630825 0.71952266 0.77912796 0.84211785 0.9087552 0.9792905 1.05399 1.1331178 1.21686 1.3053766 1.3987437 1.4968705 1.599515 1.706238 1.8163631 1.9290285 2.0431535 2.15757 2.271075 2.3824942 2.4908164 2.5951881 2.6949246 2.789558 2.8787494 2.9623175 3.0401928 3.112348 3.1788487 3.2397802 3.2952478 3.345362 3.3902552 3.4300368 3.4648132 3.4946868 3.5197456 3.5400646 3.555707 3.5667195 3.573137 3.575 3.5749867 3.573315 3.5689268 3.561938 3.5524657 3.5406268 3.5265384 3.5103166 3.4920764 3.4719317 3.4499943 3.4263735 3.4011765 3.3745081 3.34647 3.3171613 3.2866776 3.2551115 3.2225525 3.1890867 3.1547968 3.1197624 3.0840597 3.0477612 3.0109367 2.9736526 2.9359717 2.8979542 2.8596573 2.8211348 2.7824376 2.7436142 2.7047102 2.6657684 2.626829 2.58793 2.549107 2.5103931 2.4718194 2.433415 2.3952065 2.357219 2.3194757 2.2819982 2.244806 2.2079177 2.1713495 2.1351168 2.0992334 2.0637121 2.0285642 1.9937998 1.959428 1.925457 1.8918939 1.8587449 1.8260154 1.7937099 1.7618321 1.7303852 1.6993716 1.668793 1.6386507 1.6089451 1.5796767 1.550845 1.5224493 1.4944882 1.4669603 1.4398638 1.4131962 1.3869553 1.361138 1.3357413 1.3107619 1.2861966 1.2620412 1.2382922 1.2149454 1.1919968 1.1694419 1.1472764 1.1254957 1.1040952 1.0830704 1.0624164 1.0421284 1.0222017 1.0026311 0.98341197 0.96453923 0.946008 0.92781335 0.9099502 0.8924136 0.87519866 0.85830045 0.84171396 0.8254344 0.80945677 0.7937763 0.77838814 0.7632875 0.7484697 0.73392993 0.7196637 0.7056662 0.691933 0.67845947 0.66524124 0.65227383 0.6395529 0.6270741 0.61483324 0.602826 0.5910483 0.579496 0.5681651 0.55705166 0.54615164 0.5354612 0.52497655 0.5146939 0.50460964 0.49472 0.48502147 0.4755105 0.46618357 0.45703733 0.44806838 0.4392734 0.43064913 0.42219236 0.4139 0.4057689 0.39779603 0.38997838 0.38231307 0.37479714 0.36742777 0.3602022 0.35311767 0.34617147 0.339361 0.33268362 0.32613683 0.31971806 0.3134249 0.30725488 0.3012057 0.295275 0.2894605 0.28375995 0.27817115 0.27269194 0.2673202 0.26205385 0.25689083 0.25182915 0.24686687 0.24200201 0.23723271 0.2325571 0.22797337 0.2234797 0.21907437 0.21475564 0.21052183 0.20637128 0.20230235 0.19831346 0.19440305 0.19056958 0.18681155 0.1831275 0.17951593 0.17597547 0.17250472 0.16910231 0.1657669 0.16249716 0.15929182 0.15614963 0.15306933 0.15004972 0.14708959 0.1441878 0.14134318 0.13855462 0.13582101 0.13314128 0.13051437 0.12793924 0.12541486 0.12294026 0.12051444 0.11813644 0.115805335 0.11352019 0.111280106 0.10908419 0.10693158 0.10482142 0.10275288 0.10072513 0.09873738 0.09678883 0.09487871 0.093006276 0.09117077 0.08937147 0.087607674 0.08587866 0.08418377 0.0825223 0.08089362 0.07929707 0.07773202 0.07619784 0.07469394 0.07321971 0.071774565 0.07035793 0.06896926 0.067607984 0.06627357 0.06496549 0.06368322 0.06242625 0.06119409 0.05998624 0.05880223 0.057641584 0.056503844 0.055388555 0.054295275 0.053223573 0.052173022 0.051143203 0.050133705

</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="3.575" PeakHeight="239.903" Num="5" zHalfNm="219.351" Error="0.446">
-50.762 5.019 -2.909 1.234 -0.235
</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="6507.417" A="-2.01785164E11" B="6.2279372E7" C="-4805.382" Error="0.00146"/>
<QuasiParabolic ID="2" StartDistance="6507.417" EndDistance="6534.833" A="0.0" B="1513.5682" C="-0.19257775" Error="0.0241"/>
<QuasiParabolic ID="3" StartDistance="6534.833" EndDistance="6559.0" A="2.99446088E10" B="-9277831.0" C="718.5768" Error="0.0241"/>
<QuasiParabolic ID="4" StartDistance="6559.0" EndDistance="6562.0" A="1.71097326E12" B="-5.21864704E8" C="39793.652" Error="0.021"/>
<QuasiParabolic ID="5" StartDistance="6562.0" EndDistance="6570.0" A="9.106979E12" B="-2.77605734E9" C="211554.75" Error="0.0674"/>
<QuasiParabolic ID="6" StartDistance="6570.0" EndDistance="6574.0" A="1.09890943E13" B="-3.34899968E9" C="255157.66" Error="0.0069"/>
<QuasiParabolic ID="7" StartDistance="6574.0" EndDistance="6591.0" A="2.5564436E13" B="-7.7832376E9" C="592413.4" Error="0.0301"/>
<QuasiParabolic ID="8" StartDistance="6591.0" EndDistance="6609.903" A="-2.98008906E13" B="9.0170429E9" C="-682073.1" Error="0.0127"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="82.25" Depth="0.154"/>
<TopsideChapman PeakHeight="239.903" PeakDensity="158568.55" PeakScaleHeight="15.674" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
