<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-04 -124 06:35:00.000"
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 44 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 50% PACIFIC flags: F2o cusp not found, One of F2 cusps was derived from the other, F2O model cusp does not fit trace</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.04 (124) 06:35:00</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">
FF202612405040635001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.075" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.346" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="10.288" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.725" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.725" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.475" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="296.312" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="296.312" 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="2.900" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="315.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.725" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.725" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="283.120" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="257.162" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.527" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="37.165" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.991" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="19.577" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="37.470" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.040" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="15">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
296.312 298.311 300.510 302.940 305.000 307.500 312.500 315.000 320.000 325.000 332.500 337.500 347.500 357.500 369.637
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -1.5625 -7.8125 -1.5625 -1.5625 10.9375 -1.5625 -1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="484">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 145.90666 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 181.81334 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 217.72 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 283.12 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0
</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 0.3517192 0.350645 0.3495049 0.34808138 0.3464545 0.34470248 0.3426888 0.34049413 0.3381274 0.33553076 0.33271822 0.32964006 0.32638007 0.3228935 0.3191431 0.31515807 0.31091276 0.30639067 0.3015335 0.29642707 0.29101247 0.28527975 0.2791586 0.27262646 0.26571134 0.25836372 0.25052682 0.24218792 0.2332477 0.22373444 0.2134897 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 0.2008006 0.2050895 0.20937839 0.21366729 0.21795619 0.22224508 0.22653398 0.23082288 0.23511177 0.23940067 0.24368957 0.24797846 0.25226736 0.25655624 0.26084515 0.26513404 0.26942295 0.27371186 0.27800074 0.28228965 0.28657854 0.29086745 0.29515633 0.29944524 0.30373412 0.30802304 0.31231192 0.31660083 0.3208897 0.32517862 0.3294675 0.33375642 0.3380453 0.3423342 0.3466231 0.350912 0.354 0.36090776 0.3862892 0.41278204 0.440395 0.46913362 0.49901006 0.5300425 0.56223506 0.5956116 0.63018095 0.66595644 0.7029499 0.74117136 0.78063774 0.8213534 0.8633153 0.9065291 0.9509997 0.9967135 1.0436554 1.0918152 1.141171 1.1916884 1.2433432 1.2960829 1.3498689 1.4046216 1.4603 1.5168204 1.5740967 1.6320386 1.690562 1.7495426 1.8088723 1.8684249 1.9280761 1.9877009 2.047146 2.106266 2.1649199 2.2229526 2.2802098 2.3365421 2.3918004 2.4458218 2.4984612 2.5495734 2.5990086 2.646625 2.692302 2.7359 2.7773042 2.8163877 2.853055 2.887192 2.918715 2.947532 2.9735677 2.9967496 3.0170193 3.034319 3.048606 3.0598392 3.0679924 3.0730429 3.0749776 3.075 3.074399 3.0722866 3.0687022 3.0636976 3.0573242 3.0496337 3.0406778 3.030508 3.0191758 3.0067313 2.993225 2.9787068 2.9632251 2.9468284 2.9295635 2.9114769 2.892614 2.8730187 2.8527348 2.8318038 2.8102672 2.7881646 2.7655349 2.7424154 2.7188427 2.6948519 2.670477 2.6457508 2.6207051 2.5953703 2.5697758 2.54395 2.51792 2.4917116 2.4653502 2.4388592 2.412262 2.38558 2.3588345 2.3320453 2.3052316 2.2784111 2.2516015 2.2248187 2.1980784 2.1713955 2.144784 2.1182566 2.0918264 2.0655048 2.0393028 2.013231 1.9872994 1.961517 1.9358923 1.9104337 1.8851483 1.8600434 1.8351254 1.8104005 1.7858741 1.7615515 1.7374372 1.7135358 1.689851 1.6663867 1.6431459 1.6201317 1.5973465 1.5747929 1.5524726 1.5303875 1.5085392 1.4869287 1.4655572 1.4444256 1.4235342 1.4028835 1.3824737 1.362305 1.3423771 1.3226897 1.3032424 1.2840346 1.2650657 1.2463346 1.2278405 1.2095824 1.1915591 1.1737694 1.1562117 1.1388848 1.1217871 1.104917 1.088273 1.0718534 1.0556562 1.0396798 1.0239222 1.0083815 0.9930559 0.97794324 0.96304166 0.948349 0.9338632 0.91958225 0.905504 0.89162624 0.8779469 0.8644638 0.8511748 0.83807766 0.8251702 0.81245035 0.79991573 0.7875643 0.7753938 0.76340204 0.75158685 0.73994607 0.7284775 0.71717894 0.7060483 0.6950834 0.68428206 0.6736423 0.6631618 0.6528386 0.6426706 0.6326556 0.62279177 0.61307687 0.60350895 0.594086 0.584806 0.5756671 0.5666672 0.55780435 0.54907674 0.5404824 0.5320195 0.5236861 0.5154804 0.5074006 0.4994448 0.49161136 0.48389843 0.47630426 0.46882716 0.4614654 0.45421728 0.44708118 0.44005546 0.43313843 0.42632857 0.4196242 0.41302386 0.40652594 0.4001289 0.39383128 0.3876316 0.38152835 0.3755201 0.36960545 0.36378297 0.35805127 0.35240895 0.34685472 0.34138718 0.33600506 0.33070704 0.32549185 0.32035822 0.31530493 0.31033072 0.3054344 0.3006148 0.2958707 0.29120097 0.28660443 0.28208002 0.27762657 0.273243 0.2689283 0.2646813 0.26050103 0.25638643 0.25233647 0.2483502 0.2444266 0.24056469 0.23676352 0.23302217 0.22933969 0.22571516 0.22214769 0.2186364 0.2151804 0.21177883 0.20843084 0.20513561 0.20189232 0.19870013 0.19555826 0.19246593 0.18942235 0.18642679 0.18347846 0.18057664 0.17772059 0.1749096 0.17214298 0.16942002 0.16674003 0.16410235 0.16150631 0.15895125 0.15643653 0.15396152 0.1515256 0.14912815 0.14676858 0.14444627 0.14216065 0.13991114 0.13769718 0.1355182 0.13337365 0.13126297 0.12918568 0.12714121 0.12512904 0.1231487 0.12119965 0.119281426 0.117393516 0.11553546 0.11370678 0.11190702 0.11013572 0.108392425 0.106676705 0.10498811 0.10332623 0.101690635 0.10008091 0.09849664 0.09693743 0.09540289 0.09389263 0.09240625 0.09094339 0.089503676 0.08808674 0.086692214 0.085319765 0.08396902 0.08263966 0.08133132 0.080043696 0.07877644 0.07752924 0.076301776 0.07509374 0.07390481 0.07273471 0.07158312 0.07044976 0.069334336 0.06823657 0.06715617 0.06609288 0.065046415 0.06401651 0.063002914 0.062005356 0.06102359 0.060057364 0.059106432 0.058170553 0.05724949 0.056343008 0.055450875 0.05457286 0.05370875 0.05285832 0.05202135 0.05119763 0.05038695

</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="3.075" PeakHeight="283.12" Num="5" zHalfNm="257.162" Error="0.734">
-65.238 -0.283 -0.049 0.214 -0.044
</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="6515.907" A="-1.17916574E11" B="3.6394004E7" C="-2808.054" Error="0.0018"/>
<QuasiParabolic ID="2" StartDistance="6515.907" EndDistance="6551.813" A="0.0" B="-1267.6462" C="0.23458512" Error="0.0276"/>
<QuasiParabolic ID="3" StartDistance="6551.813" EndDistance="6586.0" A="4.8723526E10" B="-1.493387E7" C="1144.3385" Error="0.0276"/>
<QuasiParabolic ID="4" StartDistance="6586.0" EndDistance="6588.0" A="4.22283077E12" B="-1.28250355E9" C="97376.48" Error="0.0159"/>
<QuasiParabolic ID="5" StartDistance="6588.0" EndDistance="6604.0" A="3.66456078E12" B="-1.11302272E9" C="84513.63" Error="0.0365"/>
<QuasiParabolic ID="6" StartDistance="6604.0" EndDistance="6610.0" A="8.3791687E12" B="-2.54082637E9" C="192615.06" Error="0.00367"/>
<QuasiParabolic ID="7" StartDistance="6610.0" EndDistance="6636.0" A="6.337337E12" B="-1.92302566E9" C="145882.78" Error="0.0358"/>
<QuasiParabolic ID="8" StartDistance="6636.0" EndDistance="6653.12" A="-1.68124219E13" B="5.053996E9" C="-379812.06" Error="0.011"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="107.72" Depth="0.154"/>
<TopsideChapman PeakHeight="283.12" PeakDensity="117315.445" PeakScaleHeight="19.577" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
