<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-14 -104 23:10:00.000"
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" >
2026.04.14 (104) 23:10:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" 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">
FF202610404142310001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.525" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.332" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="8.413" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.350" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.350" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="2.875" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="310.548" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="310.548" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.350" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="310.548" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.350" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.350" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="285.096" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="253.809" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="5.543" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="44.523" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.806" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="23.580" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="44.860" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.090" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="8">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.35 2.375 2.4 2.425 2.45 2.475 2.5 2.525
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
310.548 317.500 325.000 332.500 342.500 352.500 365.000 376.545
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 0 0 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="530">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 143.61667 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 177.23334 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 210.85 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 285.096 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0 600.0 601.0 602.0 603.0 604.0 605.0 606.0 607.0 608.0 609.0 610.0 611.0 612.0 613.0 614.0 615.0 616.0 617.0 618.0
</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 0.35306174 0.35235173 0.35134748 0.35020202 0.3488452 0.34720993 0.345377 0.34335393 0.34107903 0.3385647 0.33582452 0.33287326 0.32959685 0.32608482 0.3222986 0.31826773 0.31390777 0.3092914 0.30435514 0.29903036 0.29337287 0.2874003 0.28095624 0.27411765 0.2668434 0.25904283 0.2507111 0.24184656 0.2322431 0.22191523 0.21082921 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 0.20351215 0.20809321 0.21267428 0.21725532 0.22183639 0.22641745 0.23099852 0.23557958 0.24016063 0.2447417 0.24932276 0.2539038 0.25848487 0.26306593 0.267647 0.27222806 0.27680913 0.2813902 0.28597125 0.29055232 0.29513335 0.29971442 0.30429548 0.30887654 0.3134576 0.31803867 0.32261974 0.3272008 0.33178186 0.33636293 0.34094396 0.34552503 0.3501061 0.354 0.35681164 0.3760086 0.3959865 0.4167533 0.4383027 0.46064276 0.48377135 0.507692 0.53240585 0.55791146 0.584205 0.6112908 0.6391631 0.66781634 0.69725287 0.72745687 0.75842685 0.7901538 0.8226213 0.8558189 0.88973814 0.924353 0.95964557 0.99559313 1.0321738 1.0693486 1.1071081 1.1453972 1.1841943 1.223445 1.2631257 1.3031753 1.3435574 1.3842181 1.4250896 1.4661416 1.5072932 1.5484993 1.5896835 1.6307863 1.6717542 1.7124988 1.7529651 1.793083 1.8327802 1.871988 1.910629 1.9486428 1.985958 2.0225022 2.0582175 2.0930254 2.1268656 2.159677 2.1914008 2.2219732 2.2513437 2.2794542 2.3062472 2.331682 2.3557081 2.3782825 2.3993626 2.4189167 2.4369004 2.4532847 2.4680424 2.4811466 2.492573 2.5023026 2.5103168 2.5166028 2.5211477 2.5239463 2.5249918 2.525 2.5246406 2.5234194 2.5213568 2.5184765 2.5148027 2.51036 2.5051723 2.499264 2.4926593 2.4853828 2.4774578 2.4689083 2.459758 2.4500303 2.439748 2.428934 2.417611 2.4058006 2.3935246 2.3808045 2.3676612 2.3541152 2.3401866 2.325895 2.31126 2.2963002 2.2810338 2.2654786 2.2496526 2.2335722 2.2172542 2.2007146 2.183969 2.1670325 2.1499197 2.1326454 2.1152227 2.0976653 2.079986 2.0621974 2.0443115 2.02634 2.008294 1.9901849 1.9720224 1.9538169 1.9355781 1.9173152 1.8990372 1.8807528 1.8624701 1.844197 1.8259412 1.8077098 1.7895098 1.7713479 1.7532302 1.7351631 1.717152 1.6992028 1.6813203 1.6635097 1.6457759 1.628123 1.6105555 1.5930774 1.5756924 1.5584043 1.5412163 1.5241317 1.5071534 1.4902843 1.4735271 1.4568841 1.4403579 1.4239503 1.4076636 1.3914994 1.3754597 1.3595457 1.3437592 1.3281013 1.3125732 1.297176 1.2819108 1.2667782 1.2517793 1.2369145 1.2221844 1.2075896 1.1931304 1.1788071 1.1646199 1.1505691 1.1366546 1.1228765 1.1092347 1.0957292 1.0823598 1.0691261 1.056028 1.0430651 1.0302371 1.0175433 1.0049835 0.9925572 0.9802637 0.9681025 0.9560729 0.9441743 0.932406 0.92076725 0.90925735 0.8978755 0.8866209 0.87549275 0.86449015 0.85361236 0.84285843 0.83222747 0.8217186 0.8113308 0.80106324 0.7909149 0.78088486 0.77097213 0.76117575 0.7514947 0.741928 0.7324746 0.72313356 0.71390384 0.70478445 0.6957743 0.6868724 0.67807776 0.66938925 0.66080594 0.65232676 0.6439507 0.63567674 0.6275038 0.61943084 0.61145693 0.60358095 0.59580195 0.5881189 0.58053076 0.5730365 0.5656352 0.55832577 0.5511072 0.54397863 0.53693897 0.5299873 0.52312255 0.51634383 0.5096501 0.5030405 0.49651405 0.49006978 0.48370674 0.47742403 0.47122073 0.4650959 0.45904866 0.45307806 0.44718325 0.4413633 0.4356174 0.4299446 0.42434406 0.41881496 0.4133564 0.40796754 0.40264758 0.39739567 0.392211 0.38709274 0.3820401 0.37705234 0.37212858 0.36726806 0.36247003 0.35773376 0.35305843 0.3484433 0.34388766 0.33939075 0.33495188 0.3305703 0.3262453 0.3219762 0.3177623 0.3136029 0.3094973 0.30544487 0.30144492 0.29749683 0.29359987 0.2897535 0.28595698 0.28220978 0.2785112 0.27486068 0.27125758 0.2677013 0.26419127 0.2607269 0.25730762 0.2539328 0.25060195 0.24731444 0.24406977 0.24086738 0.23770672 0.23458727 0.23150851 0.22846988 0.22547092 0.22251108 0.21958987 0.21670681 0.21386139 0.21105315 0.20828158 0.20554623 0.20284663 0.20018232 0.19755284 0.19495775 0.1923966 0.18986894 0.18737437 0.18491243 0.18248272 0.18008481 0.1777183 0.17538276 0.17307782 0.17080306 0.16855809 0.16634254 0.16415602 0.16199815 0.15986857 0.1577669 0.15569277 0.15364584 0.15162575 0.14963214 0.14766468 0.14572303 0.14380684 0.1419158 0.14004956 0.13820782 0.13639024 0.1345965 0.13282631 0.13107936 0.12935534 0.12765394 0.1259749 0.12431788 0.12268262 0.12106885 0.11947626 0.11790459 0.11635356 0.114822894 0.11331234 0.11182164 0.11035051 0.10889871 0.10746598 0.106052086 0.10465676 0.10327978 0.10192089 0.10057985 0.09925645 0.09795043 0.09666158 0.09538967 0.09413449 0.09289579 0.09167339 0.09046705 0.089276575 0.08810175 0.086942375 0.085798234 0.08466914 0.0835549 0.08245531 0.081370175 0.08029931 0.07924253 0.07819965 0.077170484 0.07615485 0.075152576 0.07416348 0.073187396 0.072224155 0.07127358 0.070335515 0.06940978 0.06849623 0.06759469 0.06670502 0.06582704 0.06496062 0.0641056 0.06326182 0.06242915 0.06160743 0.06079652 0.059996285 0.059206575 0.058427256 0.05765819 0.056899246 0.056150284 0.05541118 0.0546818 0.05396202 0.053251706 0.052550744 0.051859003 0.05117637 0.050502714

</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="2.525" PeakHeight="285.096" Num="5" zHalfNm="253.809" Error="0.556">
-74.446 0.35 -0.24 0.125 -0.035
</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="6513.617" A="-1.34448325E11" B="4.1496396E7" C="-3201.757" Error="0.00164"/>
<QuasiParabolic ID="2" StartDistance="6513.617" EndDistance="6547.233" A="0.0" B="37.79162" C="0.03422785" Error="7.45E-4"/>
<QuasiParabolic ID="3" StartDistance="6547.233" EndDistance="6548.0" A="-6.9794514E12" B="2.13173837E9" C="-162774.52" Error="0.0"/>
<QuasiParabolic ID="4" StartDistance="6548.0" EndDistance="6562.0" A="1.29683268E11" B="-3.9652788E7" C="3031.1624" Error="0.0383"/>
<QuasiParabolic ID="5" StartDistance="6562.0" EndDistance="6578.0" A="-2.23178813E10" B="6674900.0" C="-498.83527" Error="0.0131"/>
<QuasiParabolic ID="6" StartDistance="6578.0" EndDistance="6590.0" A="2.05223939E12" B="-6.2408134E8" C="47445.543" Error="0.0394"/>
<QuasiParabolic ID="7" StartDistance="6590.0" EndDistance="6631.0" A="3.11530724E12" B="-9.4671194E8" C="71924.34" Error="0.0353"/>
<QuasiParabolic ID="8" StartDistance="6631.0" EndDistance="6646.0" A="-5.2891406E12" B="1.58818406E9" C="-119215.45" Error="0.00499"/>
<QuasiParabolic ID="9" StartDistance="6646.0" EndDistance="6655.096" A="-8.490689E12" B="2.55163546E9" C="-191699.0" Error="3.47E-4"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="100.85" Depth="0.154"/>
<TopsideChapman PeakHeight="285.096" PeakDensity="79102.05" PeakScaleHeight="23.58" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
