<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-23 -113 01:25:00.000"
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: 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) 01:25:00</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">
FF202611304230125001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.800" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.507" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="9.819" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.100" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.100" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.125" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="235.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="235.000" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.575" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="278.514" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.100" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.100" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="259.934" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="229.808" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="4.097" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="43.017" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.961" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="23.645" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="34.260" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="4.650" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="29">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.1 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
235.000 236.250 237.500 240.000 240.000 241.250 242.500 245.000 247.500 247.500 250.000 252.500 255.000 257.500 262.500 262.500 265.845 269.578 273.771 278.514 283.922 290.147 297.389 305.918 316.112 328.511 343.918 363.576 389.528
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 0 84 69 72 0 57 57 57 54 54 0 0 84 78 72 72 75 69 72 66 0 66 63 63 66 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 -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="514">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 139.16667 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 168.33333 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 197.5 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 259.934 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0 600.0 601.0 602.0
</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 0.35347393 0.352762 0.35175505 0.3505324 0.3489521 0.3470975 0.34497866 0.3425364 0.33978727 0.33674988 0.3333779 0.32963315 0.32561377 0.321167 0.3164043 0.31120363 0.30563802 0.29957724 0.29311055 0.28615454 0.27862445 0.27052397 0.26174292 0.2523066 0.24211602 0.23105234 0.21895285 0.20588575 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 0.20352 0.2088 0.21408 0.21936 0.22464 0.22992 0.2352 0.24048 0.24576 0.25104 0.25632 0.2616 0.26688 0.27216 0.27744 0.28272 0.288 0.29328 0.29856 0.30384 0.30912 0.3144 0.31968 0.32496 0.33024 0.33552 0.3408 0.34608 0.35136 0.354 0.36401656 0.38623503 0.41145974 0.4395598 0.4701386 0.50268096 0.53666615 0.5717156 0.6075951 0.6441931 0.6815043 0.71959203 0.75855047 0.798516 0.83963835 0.88211447 0.92612845 0.97192013 1.019724 1.069816 1.1225114 1.1781197 1.2369703 1.2994094 1.3657197 1.4360921 1.5105039 1.588638 1.6697084 1.7524934 1.8353688 1.9165741 1.9945694 2.0682106 2.1368604 2.200325 2.2586856 2.3121927 2.3612146 2.4061 2.4472175 2.4849095 2.519459 2.5511534 2.580224 2.6068711 2.6312804 2.653606 2.6739872 2.6925404 2.7093701 2.7245684 2.73821 2.750365 2.761091 2.7704382 2.7784476 2.7851565 2.7905922 2.7947793 2.7977357 2.7994723 2.8 2.7999978 2.7994494 2.7979507 2.7955277 2.7922072 2.7880158 2.7829802 2.7771268 2.7704828 2.7630746 2.7549286 2.7460713 2.736529 2.7263272 2.7154918 2.7040482 2.692021 2.679435 2.6663144 2.6526833 2.6385648 2.6239822 2.6089575 2.5935135 2.5776713 2.561452 2.5448763 2.5279646 2.5107365 2.4932106 2.4754062 2.457341 2.4390326 2.4204984 2.4017549 2.3828182 2.363704 2.3444273 2.325003 2.305445 2.285767 2.2659826 2.2461045 2.226145 2.2061157 2.1860285 2.1658943 2.1457236 2.1255267 2.1053133 2.0850933 2.0648751 2.044668 2.0244799 2.004319 1.9841927 1.9641085 1.9440732 1.9240936 1.904176 1.8843265 1.8645506 1.844854 1.8252418 1.805719 1.7862903 1.7669601 1.7477325 1.7286116 1.709601 1.6907045 1.671925 1.6532658 1.63473 1.61632 1.5980387 1.5798881 1.5618707 1.5439883 1.5262431 1.5086365 1.4911703 1.473846 1.4566647 1.4396276 1.422736 1.4059908 1.3893929 1.3729427 1.3566412 1.3404887 1.3244857 1.3086326 1.2929296 1.2773769 1.2619746 1.2467227 1.2316213 1.21667 1.2018689 1.1872175 1.1727157 1.158363 1.144159 1.1301033 1.1161954 1.1024348 1.0888206 1.0753524 1.0620295 1.0488511 1.0358167 1.0229251 1.0101758 0.9975678 0.98510027 0.97277236 0.96058315 0.94853157 0.93661684 0.9248378 0.91319364 0.9016832 0.8903055 0.8790595 0.8679441 0.8569583 0.84610105 0.83537114 0.8247676 0.8142892 0.80393493 0.7937036 0.7835942 0.7736055 0.7637365 0.7539859 0.74435264 0.7348357 0.72543377 0.7161458 0.7069707 0.6979072 0.68895435 0.68011093 0.6713758 0.66274786 0.65422595 0.64580905 0.637496 0.62928563 0.6211769 0.6131687 0.60526 0.5974496 0.5897365 0.5821196 0.57459784 0.56717014 0.55983543 0.55259275 0.545441 0.5383791 0.5314061 0.52452093 0.5177226 0.51101017 0.5043825 0.49783874 0.49137783 0.48499885 0.4787008 0.47248274 0.46634373 0.46028283 0.4542991 0.44839162 0.4425595 0.43680182 0.43111768 0.4255062 0.41996652 0.41449773 0.409099 0.40376946 0.3985083 0.39331466 0.3881877 0.38312662 0.3781306 0.37319887 0.3683306 0.36352503 0.35878137 0.3540989 0.34947675 0.3449143 0.34041068 0.33596528 0.33157727 0.327246 0.32297075 0.3187508 0.31458545 0.31047404 0.30641586 0.30241027 0.2984566 0.29455417 0.29070237 0.28690052 0.28314802 0.27944422 0.27578852 0.27218032 0.26861897 0.26510394 0.26163456 0.25821033 0.2548306 0.25149488 0.24820253 0.24495305 0.24174587 0.23858047 0.23545627 0.23237279 0.22932948 0.22632582 0.22336133 0.22043549 0.21754779 0.21469775 0.2118849 0.20910874 0.2063688 0.20366463 0.20099576 0.19836172 0.19576208 0.19319639 0.1906642 0.1881651 0.18569864 0.1832644 0.18086198 0.17849095 0.17615092 0.17384148 0.17156222 0.16931278 0.16709274 0.16490173 0.1627394 0.16060533 0.1584992 0.1564206 0.15436922 0.15234467 0.15034662 0.1483747 0.14642861 0.144508 0.14261253 0.14074187 0.1388957 0.13707371 0.13527557 0.133501 0.13174964 0.13002123 0.12831546 0.12663203 0.12497067 0.12333106 0.12171294 0.12011601 0.11854001 0.116984665 0.1154497 0.113934845 0.11243984 0.11096444 0.10950837 0.10807139 0.10665324 0.10525368 0.10387247 0.10250937 0.10116414 0.09983654 0.09852635 0.09723334 0.09595729 0.09469796 0.09345514 0.09222863 0.0910182 0.08982365 0.08864476 0.08748133 0.086333156 0.08520004 0.0840818 0.08297821 0.08188911 0.08081429 0.07975356 0.078706756 0.07767368 0.07665416 0.07564801 0.074655056 0.07367513 0.07270807 0.07175369 0.07081183 0.06988233 0.068965025 0.06805976 0.067166366 0.066284694 0.06541459 0.06455591 0.0637085 0.0628722 0.062046878 0.061232384 0.060428582 0.059635326 0.05885248 0.058079906 0.057317473 0.056565043 0.055822488 0.05508968 0.054366488 0.053652786 0.052948453 0.05225336 0.051567394 0.05089043 0.05022235

</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="2.8" PeakHeight="259.934" Num="5" zHalfNm="229.808" Error="3.11">
-70.247 13.525 -8.655 4.189 -1.246
</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="6509.167" A="-1.78385355E11" B="5.5057208E7" C="-4248.116" Error="0.00152"/>
<QuasiParabolic ID="2" StartDistance="6509.167" EndDistance="6538.333" A="0.0" B="-1340.358" C="0.24593595" Error="0.0234"/>
<QuasiParabolic ID="3" StartDistance="6538.333" EndDistance="6567.0" A="9.020638E10" B="-2.766606E7" C="2121.303" Error="0.0473"/>
<QuasiParabolic ID="4" StartDistance="6567.0" EndDistance="6582.0" A="4.20267845E12" B="-1.2801321E9" C="97481.9" Error="0.0583"/>
<QuasiParabolic ID="5" StartDistance="6582.0" EndDistance="6588.0" A="6.4480058E12" B="-1.96239501E9" C="149309.83" Error="0.00499"/>
<QuasiParabolic ID="6" StartDistance="6588.0" EndDistance="6596.0" A="2.14021806E13" B="-6.5022172E9" C="493862.2" Error="0.0306"/>
<QuasiParabolic ID="7" StartDistance="6596.0" EndDistance="6629.934" A="-8.2316697E12" B="2.4831831E9" C="-187262.73" Error="0.0355"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="87.5" Depth="0.154"/>
<TopsideChapman PeakHeight="259.934" PeakDensity="97270.47" PeakScaleHeight="23.645" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
