<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-07 -097 05:45:00.000"
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" >
2026.04.07 (097) 05:45:00</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">
FF202609704070545001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="5.300" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.597" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="19.063" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="4.250" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="4.250" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="5.600" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="262.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="262.500" 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="5.300" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="308.532" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="4.250" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="4.250" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="261.667" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="245.721" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.355" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="23.118" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.786" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="11.963" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="23.070" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.020" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="43">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
4.25 4.275 4.3 4.325 4.35 4.375 4.4 4.425 4.45 4.475 4.5 4.525 4.55 4.575 4.6 4.625 4.65 4.675 4.7 4.725 4.75 4.775 4.8 4.825 4.85 4.875 4.9 4.925 4.95 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
262.500 262.500 262.500 263.750 265.000 265.417 265.833 266.250 266.667 267.083 267.500 268.125 268.750 269.375 270.000 270.625 271.250 271.875 272.500 273.571 274.643 275.714 276.786 277.857 278.929 280.000 281.000 282.000 283.000 284.000 285.000 286.000 287.000 288.000 289.000 290.000 292.500 294.486 296.688 299.141 301.891 304.997 308.532
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
99 99 99 0 90 0 0 0 0 0 78 0 0 0 0 0 0 0 84 0 0 0 0 0 0 87 0 0 0 0 0 0 0 0 0 105 105 0 0 0 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 7.8125 1.5625 1.5625 1.5625 -1.5625 1.5625 7.8125 -1.5625 10.9375 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 10.9375
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="371">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 145.58333 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 181.16667 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 216.75 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 261.667 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0
</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 0.34935787 0.34793577 0.3463105 0.34448874 0.34247804 0.3402866 0.3378549 0.33519608 0.33232448 0.32919082 0.32587904 0.32228336 0.31849188 0.31441292 0.31008333 0.3054338 0.30051735 0.2952657 0.28973025 0.2838154 0.27755383 0.2709269 0.2638273 0.2562852 0.24823268 0.23961297 0.23044473 0.2206037 0.2100604 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 0.20360656 0.20793442 0.21226229 0.21659017 0.22091803 0.22524591 0.22957377 0.23390163 0.23822951 0.24255738 0.24688524 0.2512131 0.255541 0.25986886 0.26419672 0.2685246 0.27285245 0.2771803 0.2815082 0.28583607 0.29016393 0.2944918 0.29881966 0.30314755 0.30747542 0.31180328 0.31613114 0.320459 0.32478687 0.32911476 0.33344263 0.3377705 0.34209836 0.34642622 0.3507541 0.354 0.36639595 0.41691878 0.46985808 0.5261481 0.58648044 0.65144455 0.7215602 0.79728997 0.8790156 0.9670495 1.0616609 1.162937 1.2709466 1.3856194 1.5067791 1.634144 1.7673568 1.9060514 2.04971 2.197802 2.3498447 2.5051942 2.6632805 2.823489 2.985186 3.1476638 3.3103306 3.4723918 3.6331053 3.791742 3.947433 4.099333 4.246558 4.38814 4.5231047 4.6504693 4.769223 4.878333 4.9768267 5.063715 5.138117 5.1992183 5.246349 5.2789474 5.296621 5.3 5.299601 5.293724 5.281125 5.262193 5.2373195 5.206892 5.1712966 5.1309104 5.086105 5.037239 4.9846625 4.9287124 4.869711 4.8079696 4.743783 4.6774325 4.609185 4.5392933 4.4679947 4.3955126 4.3220572 4.2478247 4.172998 4.0977473 4.02223 3.946594 3.870973 3.795492 3.7202647 3.645396 3.5709805 3.4971058 3.4238496 3.351283 3.27947 3.2084672 3.1383252 3.0690887 3.000797 2.9334846 2.8671806 2.8019102 2.7376945 2.6745505 2.6124923 2.5515304 2.4916723 2.4329236 2.3752866 2.3187616 2.263347 2.2090392 2.155833 2.1037219 2.0526977 2.002751 1.9538717 1.9060482 1.8592682 1.8135188 1.7687863 1.7250565 1.6823146 1.6405455 1.5997336 1.5598631 1.5209179 1.4828818 1.4457383 1.4094712 1.3740636 1.3394991 1.3057612 1.2728333 1.2406992 1.2093422 1.1787465 1.1488956 1.1197737 1.0913653 1.0636545 1.036626 1.0102648 0.98455554 0.95948374 0.9350348 0.9111945 0.88794875 0.8652836 0.84318566 0.8216415 0.8006381 0.7801626 0.76020235 0.74074507 0.7217787 0.7032913 0.6852714 0.6677075 0.6505886 0.63390374 0.61764234 0.601794 0.5863485 0.5712958 0.5566264 0.54233056 0.5283991 0.51482296 0.50159323 0.4887013 0.47613865 0.46389708 0.45196846 0.440345 0.42901894 0.41798285 0.40722933 0.3967513 0.3865418 0.37659404 0.3669013 0.35745722 0.3482554 0.33928972 0.3305542 0.32204294 0.31375024 0.30567056 0.29779845 0.2901286 0.28265586 0.27537522 0.26828173 0.26137066 0.25463727 0.24807708 0.24168563 0.2354586 0.22939178 0.22348107 0.21772248 0.21211207 0.20664608 0.20132078 0.19613259 0.19107796 0.18615349 0.1813558 0.17668167 0.1721279 0.16769141 0.1633692 0.1591583 0.15505588 0.15105914 0.14716534 0.14337188 0.13967614 0.13607562 0.13256787 0.1291505 0.12582117 0.12257765 0.11941771 0.1163392 0.11334003 0.11041814 0.107571565 0.10479835 0.1020966 0.09946449 0.09690022 0.09440204 0.09196825 0.089597195 0.08728726 0.08503687 0.08284447 0.0807086 0.07862778 0.076600604 0.07462568 0.07270167 0.07082725 0.06900116 0.06722215 0.06548899 0.063800514 0.062155567 0.060553025 0.0589918 0.057470825 0.05598906 0.054545496 0.05313915 0.05176906 0.05043429

</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="5.3" PeakHeight="261.667" Num="5" zHalfNm="245.721" Error="0.387">
-44.727 -0.526 0.396 -0.208 0.148
</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="6515.583" A="-1.20064901E11" B="3.7057068E7" C="-2859.2163" Error="0.00171"/>
<QuasiParabolic ID="2" StartDistance="6515.583" EndDistance="6551.167" A="0.0" B="7123.701" C="-1.0532964" Error="0.148"/>
<QuasiParabolic ID="3" StartDistance="6551.167" EndDistance="6585.0" A="-4.7030997E10" B="1.4216227E7" C="-1074.1564" Error="0.148"/>
<QuasiParabolic ID="4" StartDistance="6585.0" EndDistance="6590.0" A="1.14997938E13" B="-3.49279206E9" C="265213.47" Error="0.0726"/>
<QuasiParabolic ID="5" StartDistance="6590.0" EndDistance="6594.0" A="9.7826059E12" B="-2.97164237E9" C="225672.55" Error="0.0181"/>
<QuasiParabolic ID="6" StartDistance="6594.0" EndDistance="6622.0" A="4.3604773E13" B="-1.32301097E10" C="1003536.3" Error="0.0909"/>
<QuasiParabolic ID="7" StartDistance="6622.0" EndDistance="6631.667" A="-1.37285098E14" B="4.1402892E10" C="-3121577.0" Error="0.00875"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="106.75" Depth="0.154"/>
<TopsideChapman PeakHeight="261.667" PeakDensity="348511.16" PeakScaleHeight="11.963" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
