<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-18 -138 00:45:00.000"
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 11 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 100%</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.18 (138) 00:45:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.22" 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">
FF202613805180045001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.250" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.626" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.785" 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="3.575" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="270.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="270.000" 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="3.075" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="275.818" 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="271.028" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="248.118" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.681" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="32.796" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.998" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="18.088" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="27.490" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="4.050" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="11">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
3.0 3.025 3.05 3.075 3.1 3.125 3.15 3.175 3.2 3.225 3.25
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
270.000 270.000 272.594 275.818 279.932 285.364 292.867 303.906 321.751 355.500 443.505
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
78 84 78 96 96 87 81 96 96 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="453">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 146.521 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 183.042 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 219.563 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 271.028 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0
</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 0.35179353 0.3507929 0.34965166 0.34829983 0.346743 0.3449875 0.34311146 0.34098014 0.33867407 0.33613488 0.33344275 0.33047807 0.3273563 0.3239672 0.32036558 0.316516 0.31244817 0.30808315 0.30346534 0.2985396 0.29329506 0.287783 0.28199652 0.27571067 0.2691673 0.26210874 0.25467873 0.24674925 0.23830333 0.22921377 0.21959947 0.20922554 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 0.2 0.20403965 0.2082564 0.21247315 0.2166899 0.22090666 0.2251234 0.22934017 0.23355691 0.23777367 0.24199042 0.24620716 0.2504239 0.25464067 0.25885743 0.2630742 0.26729092 0.27150768 0.27572444 0.27994117 0.28415793 0.2883747 0.29259145 0.29680818 0.30102494 0.3052417 0.30945843 0.3136752 0.31789196 0.32210872 0.32632545 0.3305422 0.33475897 0.3389757 0.34319246 0.34740922 0.35162598 0.354 0.36187676 0.38278764 0.40892836 0.44206503 0.48364678 0.5332766 0.58809936 0.6448723 0.7017462 0.7582047 0.8143629 0.870584 0.9272865 0.98491484 1.043913 1.1047238 1.1678274 1.2337451 1.3030293 1.3763051 1.454228 1.5375553 1.6270239 1.7232099 1.8264154 1.9362862 2.0512881 2.1686792 2.2846882 2.3955717 2.4985683 2.5923138 2.6765718 2.7518203 2.8188665 2.8785343 2.931667 2.9789732 3.0210812 3.0585194 3.091734 3.121095 3.1469052 3.1694288 3.1888733 3.2054198 3.2192082 3.2303548 3.2389483 3.2450583 3.2487326 3.24999 3.25 3.2490938 3.246314 3.241728 3.2354052 3.2274144 3.217825 3.206706 3.1941268 3.1801548 3.1648579 3.1483026 3.1305544 3.1116774 3.0917351 3.070789 3.0489 3.026126 3.0025246 2.978152 2.9530616 2.927306 2.9009356 2.8739998 2.8465455 2.8186183 2.7902622 2.7615192 2.7324297 2.703033 2.6733656 2.6434639 2.6133611 2.5830903 2.5526824 2.5221667 2.4915717 2.4609237 2.4302483 2.3995695 2.36891 2.3382914 2.3077343 2.2772574 2.246879 2.2166166 2.1864855 2.156501 2.1266773 2.0970275 2.0675635 2.0382972 2.0092392 1.9803989 1.9517858 1.9234082 1.8952738 1.8673898 1.8397627 1.8123983 1.7853019 1.7584785 1.7319324 1.7056673 1.6796867 1.6539936 1.6285905 1.6034795 1.5786626 1.5541412 1.5299163 1.505989 1.4823596 1.4590286 1.4359959 1.4132613 1.3908244 1.3686845 1.3468407 1.3252921 1.3040375 1.2830753 1.2624042 1.2420225 1.2219284 1.2021198 1.182595 1.1633517 1.1443876 1.1257006 1.1072881 1.0891477 1.071277 1.0536733 1.0363338 1.0192561 1.0024374 0.9858748 0.9695655 0.9535068 0.93769574 0.92212945 0.90680504 0.89171964 0.8768702 0.86225396 0.84786785 0.83370894 0.8197743 0.80606115 0.79256636 0.7792871 0.76622045 0.7533635 0.74071336 0.72826713 0.716022 0.70397514 0.6921237 0.6804649 0.6689959 0.65771407 0.6466165 0.63570064 0.6249637 0.614403 0.604016 0.59380007 0.5837526 0.57387096 0.56415266 0.5545953 0.5451963 0.5359532 0.5268637 0.51792526 0.50913566 0.50049245 0.49199343 0.48363626 0.47541875 0.4673386 0.4593937 0.45158187 0.44390097 0.43634892 0.42892364 0.4216231 0.41444528 0.40738818 0.40044987 0.3936284 0.38692188 0.38032845 0.3738462 0.3674734 0.3612082 0.35504887 0.34899363 0.3430408 0.33718866 0.33143556 0.3257799 0.32022002 0.3147544 0.30938137 0.30409947 0.2989072 0.293803 0.28878546 0.2838531 0.2790045 0.27423832 0.26955312 0.26494756 0.2604203 0.25597006 0.2515955 0.24729538 0.24306846 0.23891348 0.23482925 0.23081458 0.22686829 0.22298923 0.21917626 0.2154283 0.2117442 0.20812291 0.20456338 0.20106454 0.1976254 0.1942449 0.1909221 0.18765599 0.1844456 0.18129003 0.17818831 0.17513955 0.17214283 0.1691973 0.16630207 0.16345628 0.16065909 0.15790969 0.15520726 0.15255101 0.14994015 0.14737388 0.14485149 0.1423722 0.1399353 0.13754004 0.13518573 0.13287167 0.13059717 0.12836157 0.1261642 0.12400439 0.121881515 0.11979495 0.11774407 0.11572827 0.11374695 0.111799516 0.109885395 0.10800402 0.10615484 0.10433728 0.10255083 0.100794934 0.09906909 0.09737277 0.09570549 0.094066724 0.092456006 0.09087286 0.0893168 0.087787375 0.08628412 0.0848066 0.08335436 0.08192699 0.080524035 0.0791451 0.077789776 0.07645764 0.075148314 0.073861405 0.07259652 0.071353294 0.07013135 0.06893032 0.06774985 0.066589594 0.0654492 0.064328335 0.063226655 0.06214384 0.061079565 0.06003351 0.059005365 0.057994828 0.057001587 0.05602536 0.055065844 0.054122757 0.053195823 0.05228476 0.051389292 0.050509162

</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="3.25" PeakHeight="271.028" Num="5" zHalfNm="248.118" Error="3.76">
-56.409 9.32 -6.406 3.719 -1.689
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="14" 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="6516.521" A="-1.1400867E11" B="3.518786E7" C="-2714.9873" Error="0.00174"/>
<QuasiParabolic ID="2" StartDistance="6516.521" EndDistance="6553.042" A="0.0" B="381.62555" C="-0.018525666" Error="0.00723"/>
<QuasiParabolic ID="3" StartDistance="6553.042" EndDistance="6589.0" A="3.05545871E10" B="-9400651.0" C="723.06177" Error="0.00723"/>
<QuasiParabolic ID="4" StartDistance="6589.0" EndDistance="6590.0" A="8.3089666E12" B="-2.52219827E9" C="191404.33" Error="0.0"/>
<QuasiParabolic ID="5" StartDistance="6590.0" EndDistance="6591.0" A="7.2712674E12" B="-2.20726682E9" C="167509.67" Error="2.22E-10"/>
<QuasiParabolic ID="6" StartDistance="6591.0" EndDistance="6592.0" A="2.75335453E12" B="-8.3633286E8" C="63509.223" Error="0.0"/>
<QuasiParabolic ID="7" StartDistance="6592.0" EndDistance="6597.0" A="1.03081878E13" B="-3.12845466E9" C="237365.55" Error="0.0056"/>
<QuasiParabolic ID="8" StartDistance="6597.0" EndDistance="6600.0" A="3.7886262E12" B="-1.15193152E9" C="87560.85" Error="0.00324"/>
<QuasiParabolic ID="9" StartDistance="6600.0" EndDistance="6606.0" A="8.9633021E12" B="-2.7200151E9" C="206355.06" Error="0.00338"/>
<QuasiParabolic ID="10" StartDistance="6606.0" EndDistance="6610.0" A="2.00167685E13" B="-6.0665083E9" C="459647.0" Error="0.00117"/>
<QuasiParabolic ID="11" StartDistance="6610.0" EndDistance="6618.0" A="3.8107978E13" B="-1.15404001E10" C="873708.4" Error="0.00316"/>
<QuasiParabolic ID="12" StartDistance="6618.0" EndDistance="6630.0" A="-2.92854505E13" B="8.8263066E9" C="-665027.4" Error="0.00253"/>
<QuasiParabolic ID="13" StartDistance="6630.0" EndDistance="6641.028" A="-1.58044248E13" B="4.7596319E9" C="-358340.0" Error="0.00128"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="109.563" Depth="0.154"/>
<TopsideChapman PeakHeight="271.028" PeakDensity="131048.39" PeakScaleHeight="18.088" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
