<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-05 -095 02:20:00.000"
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 22 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 80% PACIFIC flags: Multiple candidates for F2x cusp, Multiple candidates for F2o cusp, One of F2 cusps was derived from the other</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.05 (095) 02:20:00</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">
FF202609504050220001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.475" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.454" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.001" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.600" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.600" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.825" 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="3.475" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="330.815" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.600" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.600" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="273.083" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="251.624" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.818" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="30.762" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.037" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="16.057" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="30.680" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.070" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="36">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
265.000 265.000 267.500 267.500 267.500 270.000 270.000 272.500 275.000 277.500 278.750 280.000 281.250 282.500 283.750 285.000 286.250 287.500 288.750 290.000 292.500 293.750 295.000 295.000 297.500 297.500 302.500 305.000 307.500 310.000 315.000 317.500 320.000 323.262 326.850 330.815
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 69 66 66 72 72 75 75 75 54 0 54 0 0 0 0 0 0 0 90 87 0 93 93 96 96 93 93 93 93 90 63 57 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 4.6875 -1.5625 -4.6875 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="428">
<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 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 218.5 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 273.083 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0
</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 0.37205493 0.4072576 0.44239438 0.4782277 0.51526666 0.55388576 0.5943856 0.6370326 0.6820471 0.7296291 0.7799507 0.8331332 0.88926727 0.9483908 1.0104707 1.0754535 1.143208 1.2135592 1.2862824 1.3611422 1.4378766 1.5161773 1.5957873 1.6764201 1.7578194 1.839714 1.9218826 2.0040696 2.0860822 2.1677184 2.2487652 2.3290255 2.4083254 2.4864671 2.5632439 2.6384954 2.7119908 2.7835345 2.8529174 2.919904 2.9842768 3.0457819 3.1041758 3.1592202 3.2106519 3.2582085 3.3016489 3.3407173 3.3751895 3.404839 3.4294794 3.4489334 3.4630613 3.4717662 3.474981 3.475 3.4739065 3.4702845 3.4642293 3.4558468 3.445243 3.432523 3.4177928 3.401157 3.382718 3.3625782 3.3408372 3.317593 3.2929413 3.2669756 3.2397861 3.2114613 3.1820862 3.1517437 3.1205132 3.0884714 3.055692 3.0222461 2.9882014 2.953623 2.9185731 2.8831108 2.8472924 2.8111722 2.7748008 2.7382267 2.701496 2.6646519 2.6277354 2.5907853 2.5538378 2.5169275 2.480086 2.443344 2.4067297 2.370269 2.3339868 2.297906 2.2620475 2.2264311 2.1910753 2.1559963 2.12121 2.0867305 2.0525703 2.0187418 1.9852551 1.9521201 1.9193454 1.8869387 1.8549068 1.8232558 1.7919908 1.7611163 1.7306361 1.7005535 1.6708709 1.6415902 1.612713 1.58424 1.5561718 1.5285082 1.5012491 1.4743935 1.4479402 1.421888 1.3962349 1.370979 1.3461177 1.3216487 1.2975692 1.2738761 1.2505662 1.2276365 1.205083 1.1829023 1.1610909 1.1396444 1.1185592 1.0978311 1.077456 1.0574297 1.0377477 1.018406 0.9994001 0.98072547 0.96237785 0.9443526 0.92664546 0.90925175 0.8921671 0.875387 0.8589069 0.8427224 0.826829 0.81122226 0.7958978 0.7808511 0.76607794 0.7515739 0.73733467 0.723356 0.70963365 0.69616336 0.682941 0.6699625 0.65722376 0.6447207 0.63244927 0.6204057 0.60858595 0.5969863 0.5856028 0.5744318 0.5634695 0.5527124 0.54215676 0.5317991 0.52163583 0.5116636 0.5018789 0.49227852 0.48285902 0.47361717 0.4645498 0.45565373 0.44692588 0.43836316 0.42996258 0.4217212 0.41363603 0.4057043 0.3979231 0.39028975 0.38280147 0.3754556 0.36824948 0.3611805 0.3542462 0.347444 0.34077144 0.33422613 0.32780573 0.32150784 0.31533018 0.30927053 0.30332664 0.29749635 0.29177752 0.2861681 0.28066596 0.2752691 0.26997557 0.26478335 0.2596906 0.2546954 0.2497959 0.2449903 0.24027683 0.23565371 0.23111926 0.22667177 0.2223096 0.21803114 0.21383478 0.20971897 0.20568216 0.20172286 0.19783959 0.1940309 0.19029537 0.18663159 0.18303822 0.17951389 0.17605728 0.1726671 0.1693421 0.16608101 0.16288263 0.15974574 0.15666915 0.15365174 0.15069237 0.14778993 0.1449433 0.14215143 0.13941328 0.13672781 0.134094 0.13151088 0.12897748 0.12649281 0.12405598 0.121666044 0.11932211 0.1170233 0.11476873 0.11255757 0.11038898 0.10826214 0.10617624 0.10413051 0.10212416 0.100156456 0.09822664 0.09633398 0.09447777 0.09265731 0.090871915 0.0891209 0.08740361 0.08571939 0.08406762 0.082447655 0.0808589 0.07930075 0.07777261 0.07627391 0.074804075 0.07336256 0.07194881 0.0705623 0.0692025 0.067868896 0.06656098 0.06527828 0.064020276 0.06278651 0.061576523 0.060389847 0.059226032 0.058084644 0.056965247 0.055867415 0.054790743 0.053734813 0.052699227 0.0516836 0.05068754

</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="3.475" PeakHeight="273.083" Num="5" zHalfNm="251.624" Error="0.997">
-54.638 -0.143 0.226 -0.33 0.302
</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="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="-648.30066" C="0.1395238" Error="0.0145"/>
<QuasiParabolic ID="3" StartDistance="6552.333" EndDistance="6587.0" A="3.8224761E10" B="-1.1734953E7" C="900.66473" Error="0.0146"/>
<QuasiParabolic ID="4" StartDistance="6587.0" EndDistance="6590.0" A="7.794402E12" B="-2.36673024E9" C="179661.52" Error="0.0251"/>
<QuasiParabolic ID="5" StartDistance="6590.0" EndDistance="6597.0" A="3.85399574E12" B="-1.17085581E9" C="88927.484" Error="0.00792"/>
<QuasiParabolic ID="6" StartDistance="6597.0" EndDistance="6624.0" A="1.30207103E13" B="-3.94991155E9" C="299557.75" Error="0.0324"/>
<QuasiParabolic ID="7" StartDistance="6624.0" EndDistance="6635.0" A="-1.11142848E13" B="3.3372247E9" C="-250497.84" Error="0.00337"/>
<QuasiParabolic ID="8" StartDistance="6635.0" EndDistance="6643.083" A="-3.5374001E13" B="1.06498744E10" C="-801564.1" Error="0.00137"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="108.5" Depth="0.154"/>
<TopsideChapman PeakHeight="273.083" PeakDensity="149821.66" PeakScaleHeight="16.057" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
