<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-07 -127 01:05:00.000"
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: 85% PACIFIC flags: 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" >
2026.05.07 (127) 01:05:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.21" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.99" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="75.82641" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202612705070105001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.325" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.496" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="15.120" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.050" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.050" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.600" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="245.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="245.000" 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="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="4.125" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="297.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.050" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.050" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="263.009" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="238.919" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.564" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="34.478" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.801" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="18.483" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="31.950" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.830" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="52">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 3.6 3.625 3.65 3.675 3.7 3.725 3.75 3.775 3.8 3.825 3.85 3.875 3.9 3.925 3.95 3.975 4.0 4.025 4.05 4.075 4.1 4.125 4.15 4.175 4.2 4.225 4.25 4.275 4.3 4.325
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
245.000 245.000 245.000 246.250 247.500 248.000 248.500 249.000 249.500 250.000 251.250 252.500 255.000 255.000 255.000 255.000 257.500 257.500 260.000 260.000 260.000 262.500 262.500 265.000 265.000 265.000 267.500 267.500 269.063 270.625 272.188 273.750 275.313 276.875 278.438 280.000 282.500 285.000 285.000 290.000 292.500 295.000 295.000 297.500 305.000 307.500 310.000 317.500 322.500 330.168 339.663 351.729
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
90 90 90 0 90 0 0 0 0 102 0 102 99 96 99 111 108 99 93 87 90 87 90 84 87 87 87 81 0 0 0 0 0 0 0 102 102 93 93 90 0 102 105 93 93 69 72 105 105 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 -1.5625 -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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="467">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 141.5 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 204.5 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 263.009 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0
</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 0.35354906 0.3529118 0.35205317 0.35097662 0.34968653 0.34811512 0.3462709 0.3442354 0.34187606 0.33927825 0.33638793 0.33322465 0.32980946 0.32603815 0.32200715 0.31768805 0.31300464 0.30795586 0.3025528 0.29676917 0.29057935 0.28398937 0.27689454 0.26927269 0.26112098 0.25231692 0.24289067 0.23271252 0.2217551 0.20985778 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 0.2048889 0.20977777 0.21466666 0.21955556 0.22444445 0.22933333 0.23422222 0.23911111 0.244 0.2488889 0.25377777 0.25866666 0.26355556 0.26844445 0.27333334 0.27822223 0.28311113 0.288 0.29288888 0.29777777 0.30266666 0.30755556 0.31244445 0.31733334 0.32222223 0.32711112 0.332 0.33688888 0.34177777 0.34666666 0.35155556 0.354 0.36754245 0.3975694 0.4316084 0.46954814 0.5110597 0.5557034 0.6030669 0.6528098 0.70472455 0.758695 0.8147042 0.8728333 0.9331472 0.99583614 1.0610367 1.1289694 1.1998653 1.2739333 1.3514483 1.4326202 1.5177331 1.6069808 1.7005454 1.798578 1.9011022 2.008028 2.1191285 2.2339392 2.3518357 2.471937 2.5932388 2.7146068 2.834804 2.9527264 3.0673685 3.1778834 3.2836227 3.3841279 3.479111 3.5684292 3.6520796 3.7300646 3.802516 3.8695645 3.9313586 3.9880838 4.039894 4.086939 4.129389 4.167373 4.2010264 4.2304535 4.2557635 4.277041 4.2943583 4.307771 4.317331 4.323067 4.3249927 4.325 4.3237996 4.32021 4.3143163 4.3062053 4.2959623 4.2836742 4.269428 4.253308 4.2354 4.2157893 4.194558 4.171788 4.147561 4.121955 4.095048 4.066916 4.0376325 4.0072694 3.9758976 3.9435847 3.910397 3.8763986 3.8416514 3.8062153 3.7701483 3.733506 3.696342 3.658708 3.6206536 3.5822268 3.5434725 3.504435 3.4651556 3.4256747 3.3860302 3.3462584 3.3063939 3.2664695 3.2265167 3.186565 3.1466427 3.1067762 3.0669909 3.0273106 2.9877577 2.9483533 2.9091175 2.8700686 2.8312244 2.7926013 2.7542148 2.716079 2.6782072 2.6406116 2.6033041 2.5662954 2.5295947 2.4932115 2.4571538 2.4214294 2.3860447 2.3510063 2.3163197 2.2819896 2.2480206 2.214417 2.1811814 2.1483173 2.115827 2.0837123 2.0519753 2.0206168 1.9896377 1.9590387 1.92882 1.8989813 1.8695225 1.8404428 1.8117411 1.7834166 1.7554679 1.7278931 1.7006909 1.6738589 1.6473953 1.6212977 1.5955638 1.5701909 1.5451764 1.5205175 1.4962113 1.4722549 1.4486451 1.4253789 1.402453 1.3798639 1.3576084 1.3356832 1.3140848 1.2928096 1.2718542 1.2512147 1.230888 1.2108701 1.1911577 1.1717469 1.152634 1.1338155 1.1152878 1.0970471 1.0790896 1.061412 1.0440104 1.0268812 1.010021 0.9934257 0.9770922 0.9610167 0.9451957 0.9296256 0.91430295 0.8992242 0.88438606 0.86978495 0.85541755 0.8412804 0.8273703 0.81368375 0.8002176 0.7869686 0.7739335 0.76110905 0.74849224 0.7360799 0.72386885 0.7118562 0.70003885 0.68841386 0.6769783 0.6657292 0.65466374 0.6437791 0.63307244 0.622541 0.6121821 0.60199296 0.59197104 0.5821136 0.57241815 0.56288207 0.55350286 0.5442781 0.53520525 0.52628195 0.51750576 0.5088744 0.5003856 0.49203694 0.48382628 0.47575137 0.46781003 0.4600001 0.4523195 0.44476607 0.43733785 0.43003273 0.42284876 0.41578397 0.40883642 0.40200418 0.39528543 0.38867825 0.3821809 0.37579152 0.36950836 0.3633297 0.35725382 0.35127905 0.34540373 0.33962622 0.3339449 0.3283582 0.3228646 0.3174625 0.31215048 0.30692697 0.30179057 0.2967398 0.2917733 0.2868896 0.28208742 0.2773654 0.27272213 0.26815638 0.26366687 0.25925234 0.25491148 0.25064316 0.24644612 0.2423192 0.23826122 0.23427105 0.23034756 0.22648965 0.22269621 0.2189662 0.21529855 0.21169221 0.20814618 0.20465945 0.20123103 0.19785996 0.19454527 0.19128603 0.18808131 0.1849302 0.18183184 0.17878531 0.17578976 0.17284434 0.1699482 0.16710055 0.16430056 0.16154744 0.1588404 0.15617868 0.15356153 0.15098819 0.14845793 0.14597005 0.14352381 0.14111854 0.13875355 0.13642816 0.13414173 0.13189358 0.12968308 0.12750961 0.12537253 0.12327126 0.12120518 0.11917371 0.11717627 0.1152123 0.11328122 0.11138249 0.10951558 0.10767994 0.10587505 0.104100406 0.102355495 0.10063982 0.09895289 0.09729423 0.095663354 0.09405981 0.09248314 0.09093288 0.089408614 0.08790988 0.086436264 0.08498734 0.0835627 0.08216193 0.08078464 0.07943043 0.078098916 0.07678972 0.07550246 0.07423678 0.07299231 0.07176869 0.07056559 0.06938265 0.068219535 0.067075916 0.06595147 0.06484586 0.06375879 0.06268994 0.061639003 0.060605682 0.05958968 0.05859071 0.057608485 0.056642722 0.05569315 0.05475949 0.053841483 0.052938867 0.052051377 0.051178765 0.05032078

</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="4.325" PeakHeight="263.009" Num="5" zHalfNm="238.919" Error="1.557">
-62.126 6.328 -4.165 2.179 -0.725
</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="6511.5" A="-1.53036653E11" B="4.7233536E7" C="-3644.4375" Error="0.00157"/>
<QuasiParabolic ID="2" StartDistance="6511.5" EndDistance="6543.0" A="0.0" B="-283.75513" C="0.083602294" Error="0.00586"/>
<QuasiParabolic ID="3" StartDistance="6543.0" EndDistance="6573.0" A="4.4955943E10" B="-1.3823226E7" C="1062.6079" Error="0.00978"/>
<QuasiParabolic ID="4" StartDistance="6573.0" EndDistance="6576.0" A="6.1802383E12" B="-1.88063667E9" C="143068.8" Error="0.0282"/>
<QuasiParabolic ID="5" StartDistance="6576.0" EndDistance="6580.0" A="6.2899371E12" B="-1.914E9" C="145605.55" Error="0.0103"/>
<QuasiParabolic ID="6" StartDistance="6580.0" EndDistance="6592.0" A="9.5224542E12" B="-2.89652787E9" C="220265.73" Error="0.0377"/>
<QuasiParabolic ID="7" StartDistance="6592.0" EndDistance="6610.0" A="3.11043608E13" B="-9.444436E9" C="716921.4" Error="0.0191"/>
<QuasiParabolic ID="8" StartDistance="6610.0" EndDistance="6633.009" A="-3.15671561E13" B="9.5182008E9" C="-717468.7" Error="0.00862"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="94.5" Depth="0.154"/>
<TopsideChapman PeakHeight="263.009" PeakDensity="232079.72" PeakScaleHeight="18.483" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
