<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-10 -130 23:55:00.000"
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: 75% PACIFIC flags: Multiple candidates for F2o cusp, Unidentified traces above foF2</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.10 (130) 23:55:00</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">
FF202613005102355001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.450" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.261" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.249" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.300" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.300" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.850" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="337.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="337.500" 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="3.300" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="337.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.300" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.300" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="299.931" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="267.186" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.954" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="46.981" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.559" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="24.713" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="46.810" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.110" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="7">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
3.3 3.325 3.35 3.375 3.4 3.425 3.45
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
337.500 345.000 352.074 361.475 374.574 394.092 426.274
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
93 93 99 102 102 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="586">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 145.55034 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 181.10066 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 216.651 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 299.931 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0 600.0 601.0 602.0 603.0 604.0 605.0 606.0 607.0 608.0 609.0 610.0 611.0 612.0 613.0 614.0 615.0 616.0 617.0 618.0 619.0 620.0 621.0 622.0 623.0 624.0 625.0 626.0 627.0 628.0 629.0 630.0 631.0 632.0 633.0 634.0 635.0 636.0 637.0 638.0 639.0 640.0 641.0 642.0 643.0 644.0 645.0 646.0 647.0 648.0 649.0 650.0 651.0 652.0 653.0 654.0 655.0 656.0 657.0 658.0 659.0 660.0 661.0 662.0 663.0 664.0 665.0 666.0 667.0 668.0 669.0 670.0 671.0 672.0 673.0 674.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
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0.32085675 0.32518864 0.32952052 0.3338524 0.3381843 0.34251618 0.34684807 0.35117993 0.354 0.36055472 0.38002992 0.4005476 0.42210597 0.44470453 0.4683353 0.49299446 0.51866794 0.5453541 0.57303834 0.6017208 0.6313886 0.6620376 0.69366676 0.7262672 0.759838 0.7943702 0.82987225 0.86633396 0.90375686 0.9421335 0.98146236 1.0217377 1.0629492 1.1050912 1.1481619 1.1921363 1.2370017 1.2827485 1.3293519 1.3767813 1.4250244 1.4740374 1.5237938 1.5742444 1.6253629 1.6770929 1.7293717 1.7821699 1.835403 1.889025 1.9429502 1.9971282 2.0514758 2.105903 2.1603448 2.214707 2.2689168 2.3228743 2.3764822 2.42967 2.4823399 2.5344024 2.5857596 2.6363328 2.6860323 2.734771 2.7824523 2.8290124 2.8743622 2.9184203 2.961126 3.0024004 3.0421772 3.080392 3.1169827 3.1519024 3.185089 3.216489 3.2460628 3.2737675 3.2995613 3.323407 3.3452733 3.3651302 3.382952 3.3987114 3.4123945 3.4239764 3.4334462 3.4407904 3.4460006 3.44907 3.45 3.4499974 3.4493754 3.44768 3.4449396 3.441183 3.4364388 3.4307358 3.424103 3.416569 3.4081626 3.3989124 3.3888474 3.3779953 3.3663845 3.3540428 3.3409977 3.3272762 3.3129053 3.2979114 3.2823207 3.2661588 3.2494507 3.2322214 3.214495 3.1962953 3.1776457 3.158569 3.1390877 3.1192234 3.0989974 3.0784304 3.0575428 3.0363545 3.0148842 2.9931512 2.9711733 2.9489682 2.926553 2.9039445 2.8811588 2.8582115 2.835118 2.8118927 2.78855 2.7651033 2.7415662 2.7179513 2.694271 2.6705375 2.646762 2.6229553 2.5991287 2.575292 2.5514555 2.5276282 2.5038195 2.480038 2.4562922 2.4325898 2.408939 2.3853467 2.36182 2.3383658 2.3149905 2.2917001 2.2685006 2.2453973 2.222396 2.1995008 2.1767173 2.1540494 2.131502 2.1090786 2.0867834 2.0646198 2.042591 2.0207007 1.9989517 1.9773465 1.955888 1.9345788 1.9134208 1.8924164 1.8715674 1.8508756 1.8303429 1.8099705 1.7897601 1.7697127 1.7498294 1.7301115 1.7105596 1.6911746 1.6719573 1.652908 1.6340274 1.6153158 1.5967734 1.5784006 1.5601974 1.5421638 1.5243 1.5066056 1.4890807 1.4717247 1.4545376 1.4375191 1.4206686 1.4039856 1.3874696 1.3711203 1.3549367 1.3389184 1.3230646 1.3073745 1.2918475 1.2764826 1.261279 1.2462358 1.2313522 1.2166272 1.2020599 1.1876491 1.1733941 1.1592935 1.1453466 1.1315522 1.1179092 1.1044164 1.0910728 1.0778773 1.0648286 1.0519257 1.0391674 1.0265524 1.0140797 1.001748 0.9895561 0.9775028 0.96558696 0.9538073 0.94216263 0.9306517 0.9192734 0.90802634 0.8969094 0.88592136 0.875061 0.864327 0.8537182 0.84323347 0.8328715 0.82263106 0.812511 0.80251014 0.79262716 0.78286093 0.7732103 0.763674 0.75425094 0.74493986 0.7357396 0.726649 0.7176669 0.7087922 0.7000237 0.6913603 0.6828008 0.6743442 0.6659892 0.6577349 0.64957994 0.6415235 0.6335643 0.62570137 0.61793363 0.61025995 0.6026793 0.5951907 0.58779305 0.58048534 0.57326657 0.5661357 0.55909175 0.5521337 0.54526055 0.53847146 0.5317653 0.5251412 0.51859814 0.51213527 0.5057516 0.49944627 0.4932183 0.48706684 0.48099092 0.4749897 0.46906233 0.4632079 0.45742556 0.4517145 0.4460738 0.44050267 0.43500027 0.42956582 0.42419848 0.41889742 0.41366193 0.40849113 0.40338436 0.39834073 0.39335957 0.3884401 0.38358158 0.37878326 0.37404445 0.3693644 0.36474243 0.36017781 0.35566986 0.35121787 0.3468212 0.34247917 0.3381911 0.33395633 0.32977423 0.32564414 0.32156545 0.31753752 0.3135597 0.30963144 0.3057521 0.30192107 0.29813778 0.29440165 0.2907121 0.28706852 0.2834704 0.27991712 0.2764082 0.27294302 0.26952112 0.26614192 0.2628049 0.25950953 0.25625533 0.25304177 0.24986835 0.24673456 0.24363995 0.240584 0.23756625 0.23458621 0.23164342 0.22873744 0.22586781 0.22303405 0.22023574 0.21747243 0.21474369 0.2120491 0.20938823 0.20676064 0.20416597 0.20160376 0.19907361 0.19657515 0.19410798 0.1916717 0.18926592 0.18689027 0.18454438 0.18222788 0.1799404 0.17768157 0.17545104 0.17324845 0.17107348 0.16892576 0.16680495 0.16471073 0.16264275 0.16060069 0.15858424 0.15659305 0.15462685 0.15268528 0.15076807 0.1488749 0.14700545 0.14515945 0.14333662 0.14153664 0.13975923 0.13800412 0.13627103 0.13455968 0.13286978 0.13120109 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</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="3.45" PeakHeight="299.931" Num="5" zHalfNm="267.186" Error="0.454">
-83.737 0.833 -0.54 0.307 -0.143
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="10" 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="6515.55" A="-1.2028756E11" B="3.7125788E7" C="-2864.519" Error="0.00172"/>
<QuasiParabolic ID="2" StartDistance="6515.55" EndDistance="6551.101" A="0.0" B="-100.899185" C="0.055521805" Error="0.003"/>
<QuasiParabolic ID="3" StartDistance="6551.101" EndDistance="6586.0" A="3.6947476E10" B="-1.1352774E7" C="872.0898" Error="0.003"/>
<QuasiParabolic ID="4" StartDistance="6586.0" EndDistance="6588.0" A="6.6815745E12" B="-2.02915622E9" C="154060.94" Error="3.87E-4"/>
<QuasiParabolic ID="5" StartDistance="6588.0" EndDistance="6592.0" A="8.5220347E11" B="-2.59462608E8" C="19749.031" Error="0.01"/>
<QuasiParabolic ID="6" StartDistance="6592.0" EndDistance="6606.0" A="2.95104125E12" B="-8.9624589E8" C="68048.734" Error="0.0113"/>
<QuasiParabolic ID="7" StartDistance="6606.0" EndDistance="6630.0" A="6.3017142E12" B="-1.91067917E9" C="144829.94" Error="0.0163"/>
<QuasiParabolic ID="8" StartDistance="6630.0" EndDistance="6650.0" A="2.6174908E12" B="-7.9929958E8" C="61015.492" Error="0.019"/>
<QuasiParabolic ID="9" StartDistance="6650.0" EndDistance="6669.931" A="-1.34463336E13" B="4.03192576E9" C="-302234.53" Error="0.00728"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="106.651" Depth="0.154"/>
<TopsideChapman PeakHeight="299.931" PeakDensity="147673.7" PeakScaleHeight="24.713" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
