<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-04 -124 06:15:00.000"
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: 70% PACIFIC flags: F2x cusp not found, One of F2 cusps was derived from the other</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.04 (124) 06:15:00</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">
FF202612405040615001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.150" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.474" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="10.944" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.000" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.000" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.600" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="300.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="300.000" 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="0.150" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.000" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="300.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.000" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.000" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="279.544" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="255.469" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.623" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="34.467" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.963" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="18.114" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="34.660" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.060" 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" >
3.0 3.025 3.05 3.075 3.1 3.125 3.15
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
300.000 310.000 312.500 327.500 340.533 356.079 374.945
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 78 78 0 0 90 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="460">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 146.263 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 182.526 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 218.789 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 279.544 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0
</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 0.34957823 0.348154 0.34659868 0.34484494 0.3429 0.34077185 0.33846918 0.33586612 0.33311298 0.33015564 0.32694623 0.32350603 0.31985754 0.31596568 0.31180385 0.3073546 0.3026631 0.2976753 0.29238138 0.28674287 0.28077084 0.2744606 0.26773444 0.26055747 0.25295824 0.24486452 0.23623335 0.22699809 0.21705836 0.20649683 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 0.20201296 0.20625971 0.21050647 0.21475323 0.21899997 0.22324672 0.22749348 0.23174024 0.23598698 0.24023373 0.24448049 0.24872725 0.252974 0.25722075 0.2614675 0.26571426 0.269961 0.27420777 0.2784545 0.28270125 0.28694803 0.29119477 0.29544154 0.29968828 0.30393502 0.3081818 0.31242853 0.31667528 0.32092205 0.3251688 0.32941556 0.3336623 0.33790904 0.3421558 0.34640256 0.3506493 0.354 0.3595836 0.3866528 0.41481397 0.44416976 0.47480008 0.5067879 0.54020315 0.57510245 0.61154866 0.64958996 0.68926936 0.73061883 0.77365464 0.81839967 0.8648637 0.91302574 0.96287775 1.0143887 1.0675297 1.1222321 1.1784524 1.2361072 1.2951133 1.3553852 1.4168067 1.4792997 1.5427132 1.6069202 1.6718117 1.7372335 1.8030474 1.8690838 1.9352052 2.0012407 2.0670347 2.1324232 2.1972172 2.2612731 2.3243854 2.3864174 2.447156 2.5064518 2.5641234 2.619997 2.6738982 2.7256668 2.7751343 2.8221354 2.8665204 2.908141 2.946854 2.982526 3.0150263 3.0442429 3.0700688 3.092413 3.1111927 3.1263328 3.137782 3.1454928 3.1494403 3.15 3.149806 3.148046 3.1445062 3.139253 3.1323526 3.1238728 3.1138797 3.10244 3.08962 3.0754852 3.0601003 3.0435288 3.0258338 3.0070765 2.9873176 2.9666157 2.9450285 2.9226122 2.8994212 2.8755088 2.850926 2.8257225 2.7999468 2.7736454 2.746863 2.7196426 2.6920261 2.6640537 2.6357632 2.6071916 2.578374 2.5493443 2.5201347 2.490776 2.461297 2.4317262 2.4020898 2.3724132 2.34272 2.3130333 2.2833743 2.2537634 2.2242196 2.1947613 2.165405 2.1361673 2.1070628 2.078106 2.0493097 2.0206864 1.9922477 1.9640042 1.9359658 1.9081417 1.8805406 1.8531702 1.8260376 1.7991496 1.7725122 1.746131 1.7200106 1.6941558 1.6685704 1.643258 1.6182218 1.5934644 1.5689881 1.5447949 1.5208864 1.497264 1.4739287 1.450881 1.4281216 1.4056504 1.3834674 1.3615725 1.339965 1.3186443 1.2976096 1.2768595 1.2563931 1.2362089 1.2163054 1.1966809 1.1773337 1.1582619 1.1394635 1.1209364 1.1026784 1.0846872 1.0669607 1.0494962 1.0322914 1.0153439 0.99865085 0.9822098 0.9660181 0.950073 0.9343718 0.9189119 0.9036903 0.8887043 0.87395114 0.859428 0.845132 0.83106035 0.8172102 0.80357873 0.7901631 0.7769605 0.76396805 0.751183 0.73860246 0.72622377 0.714044 0.70206046 0.69027036 0.678671 0.6672597 0.6560337 0.6449903 0.6341269 0.62344086 0.6129296 0.60259044 0.5924209 0.5824184 0.57258046 0.56290454 0.55338824 0.54402906 0.53482467 0.5257727 0.5168707 0.50811636 0.49950746 0.4910417 0.4827168 0.47453058 0.46648088 0.45856547 0.4507823 0.44312918 0.43560413 0.42820504 0.42092994 0.4137768 0.40674368 0.3998286 0.39302972 0.38634512 0.37977296 0.3733114 0.36695862 0.36071292 0.35457245 0.34853557 0.34260052 0.3367657 0.3310294 0.32539 0.31984594 0.31439564 0.30903754 0.3037701 0.29859182 0.29350126 0.2884969 0.28357738 0.27874124 0.27398708 0.2693136 0.2647194 0.26020315 0.2557636 0.2513994 0.24710932 0.24289215 0.23874661 0.23467155 0.23066576 0.22672807 0.22285736 0.21905248 0.21531235 0.21163584 0.20802191 0.2044695 0.20097756 0.1975451 0.19417107 0.19085452 0.18759447 0.18438996 0.18124005 0.17814383 0.17510037 0.1721088 0.16916822 0.16627778 0.16343664 0.16064394 0.15789886 0.15520062 0.15254839 0.14994141 0.14737892 0.14486015 0.14238435 0.13995081 0.1375588 0.13520762 0.13289657 0.13062498 0.12839216 0.12619747 0.12404024 0.12191985 0.11983567 0.11778708 0.11577347 0.11379425 0.11184884 0.109936655 0.108057134 0.10620971 0.104393855 0.102609016 0.10085467 0.0991303 0.097435385 0.095769435 0.09413195 0.09252244 0.09094044 0.08938547 0.08785707 0.08635479 0.08487819 0.08342682 0.082000256 0.08059807 0.079219855 0.0778652 0.07653369 0.07522494 0.07393856 0.07267418 0.071431406 0.070209876 0.06900923 0.0678291 0.06666916 0.06552904 0.064408414 0.06330694 0.062224302 0.061160173 0.06011424 0.059086185 0.05807571 0.05708251 0.05610629 0.055146765 0.054203644 0.05327665 0.052365508 0.05146994 0.05058969

</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="3.15" PeakHeight="279.544" Num="5" zHalfNm="255.469" Error="0.619">
-60.559 -0.215 -0.036 0.002 0.053
</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="6516.263" A="-1.15630973E11" B="3.5688572E7" C="-2753.6223" Error="0.00175"/>
<QuasiParabolic ID="2" StartDistance="6516.263" EndDistance="6552.526" A="0.0" B="-1420.6344" C="0.25804827" Error="0.031"/>
<QuasiParabolic ID="3" StartDistance="6552.526" EndDistance="6584.0" A="5.2683121E10" B="-1.6137838E7" C="1235.8568" Error="0.031"/>
<QuasiParabolic ID="4" StartDistance="6584.0" EndDistance="6587.0" A="-2.24664781E11" B="6.8111224E7" C="-5162.158" Error="8.31E-4"/>
<QuasiParabolic ID="5" StartDistance="6587.0" EndDistance="6605.0" A="4.4928876E12" B="-1.36427149E9" C="103565.84" Error="0.035"/>
<QuasiParabolic ID="6" StartDistance="6605.0" EndDistance="6610.0" A="1.23987726E13" B="-3.75818061E9" C="284785.3" Error="0.00625"/>
<QuasiParabolic ID="7" StartDistance="6610.0" EndDistance="6634.0" A="7.2538097E12" B="-2.20145946E9" C="167030.31" Error="0.0358"/>
<QuasiParabolic ID="8" StartDistance="6634.0" EndDistance="6649.544" A="-2.07186014E13" B="6.2315853E9" C="-468562.47" Error="0.0107"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="108.789" Depth="0.154"/>
<TopsideChapman PeakHeight="279.544" PeakDensity="123107.94" PeakScaleHeight="18.114" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
