<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-13 -103 02:15:00.000"
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 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" >
2026.04.13 (103) 02:15:00</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">
FF202610304130215001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.875" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.302" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="9.494" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.575" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.575" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.225" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="307.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="307.500" 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="0.125" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.725" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="325.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.575" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.575" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="290.319" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="262.128" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.839" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="40.266" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.941" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="21.245" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="40.450" 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="13">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.575 2.6 2.625 2.65 2.675 2.7 2.725 2.75 2.775 2.8 2.825 2.85 2.875
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
307.500 310.000 312.500 317.500 320.000 322.500 325.000 332.500 337.500 345.000 352.951 362.433 373.935
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 0 63 72 72 75 72 69 57 57 45 0 54
</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 -1.5625 1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="511">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 147.11734 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 184.23466 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 221.352 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 290.319 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0
</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 0.35265058 0.35186794 0.35086685 0.3497987 0.34844553 0.34695965 0.34527335 0.34346452 0.341398 0.33915415 0.33674204 0.3341047 0.33125627 0.328212 0.32498792 0.32147872 0.3177715 0.31383237 0.3096359 0.3052194 0.30046707 0.2955124 0.29014915 0.28455886 0.27857202 0.27224177 0.2655749 0.25843468 0.25087354 0.24287488 0.23429152 0.22508238 0.21533357 0.20482169 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 0.20317537 0.20732437 0.21147338 0.21562238 0.21977139 0.22392039 0.2280694 0.2322184 0.2363674 0.24051641 0.24466541 0.24881442 0.25296342 0.25711244 0.26126143 0.26541045 0.26955944 0.27370846 0.27785745 0.28200647 0.28615546 0.29030448 0.29445347 0.2986025 0.30275148 0.3069005 0.3110495 0.3151985 0.3193475 0.32349652 0.3276455 0.33179453 0.33594352 0.34009254 0.34424153 0.34839055 0.35253954 0.354 0.3682137 0.39098233 0.41477126 0.43959466 0.46546826 0.49240893 0.5204208 0.5495225 0.57971495 0.6110126 0.6434208 0.6769442 0.7115823 0.74733746 0.78420615 0.82217866 0.8612548 0.9014154 0.9426422 0.9849096 1.0282063 1.0724909 1.1177353 1.1638951 1.2109181 1.2587818 1.307402 1.3567302 1.4067014 1.4572458 1.5082895 1.5597476 1.611536 1.6635698 1.7157621 1.7679964 1.8201913 1.8722428 1.9240439 1.9754834 2.02646 2.0768654 2.1265905 2.1755245 2.2235537 2.270591 2.3165102 2.3612244 2.4046245 2.4466047 2.4870872 2.5259755 2.5631702 2.598604 2.6321878 2.6638472 2.6935115 2.7211158 2.746602 2.7699046 2.7909827 2.809782 2.8262656 2.8403976 2.8521464 2.861485 2.868396 2.872862 2.8748748 2.875 2.8747134 2.8732715 2.8706474 2.866879 2.862004 2.85606 2.849085 2.8411167 2.8321927 2.8223505 2.8116271 2.8000593 2.7876835 2.7745354 2.7606504 2.746063 2.7308075 2.7149177 2.6984258 2.6813645 2.6637647 2.6456573 2.627072 2.6080384 2.5885842 2.5687375 2.5485246 2.5279717 2.507104 2.4859457 2.4645205 2.4428513 2.42096 2.3988678 2.3765955 2.3541627 2.3315885 2.3088908 2.2860878 2.263196 2.2402318 2.2172105 2.194147 2.1710563 2.147951 2.1248446 2.1017497 2.0786777 2.0556402 2.032648 2.0097115 1.9868401 1.9640431 1.9413294 1.9187071 1.8961842 1.8737681 1.8514657 1.8292837 1.8072283 1.7853054 1.7635204 1.7418784 1.7203841 1.6990422 1.6778567 1.6568315 1.6359704 1.6152762 1.5947524 1.5744017 1.5542266 1.5342295 1.5144123 1.4947771 1.4753256 1.4560591 1.436979 1.4180866 1.3993827 1.3808682 1.3625437 1.3444098 1.3264668 1.3087149 1.2911544 1.2737851 1.256607 1.23962 1.2228236 1.2062175 1.1898011 1.173574 1.1575353 1.1416845 1.1260207 1.110543 1.0952504 1.080142 1.0652168 1.0504736 1.0359112 1.0215285 1.0073242 0.9932971 0.9794459 0.9657691 0.95226544 0.9389335 0.9257718 0.9127789 0.8999534 0.88729376 0.87479836 0.86246586 0.85029453 0.83828294 0.8264294 0.81473255 0.8031906 0.791802 0.7805652 0.76947856 0.7585405 0.74774945 0.73710376 0.72660184 0.7162421 0.70602286 0.69594264 0.6859998 0.6761927 0.6665199 0.6569797 0.6475705 0.6382909 0.6291391 0.62011385 0.61121345 0.6024363 0.59378105 0.5852461 0.5768299 0.5685311 0.56034815 0.5522796 0.544324 0.53647983 0.5287458 0.52112037 0.5136022 0.5061899 0.49888209 0.4916774 0.48457447 0.47757196 0.47066858 0.46386296 0.45715386 0.45053995 0.44401997 0.4375927 0.43125683 0.42501116 0.4188545 0.4127856 0.40680328 0.40090638 0.39509374 0.38936418 0.38371658 0.37814984 0.3726628 0.3672544 0.36192358 0.3566692 0.35149023 0.34638563 0.34135437 0.33639544 0.33150783 0.32669052 0.32194257 0.31726298 0.3126508 0.30810508 0.3036249 0.29920933 0.29485747 0.2905684 0.28634128 0.28217518 0.2780693 0.27402273 0.27003464 0.26610425 0.2622307 0.25841317 0.25465092 0.2509431 0.24728899 0.2436878 0.24013877 0.23664115 0.23319425 0.22979729 0.2264496 0.22315045 0.21989916 0.21669503 0.2135374 0.2104256 0.20735896 0.20433685 0.20135862 0.19842364 0.1955313 0.19268097 0.18987206 0.18710397 0.1843761 0.18168789 0.17903876 0.17642814 0.17385548 0.17132024 0.16882189 0.16635987 0.16393366 0.16154276 0.15918665 0.15686482 0.15457678 0.15232205 0.15010014 0.14791058 0.14575289 0.14362662 0.14153132 0.13946652 0.1374318 0.13542672 0.13345084 0.13150375 0.12958501 0.12769423 0.12583101 0.12399493 0.12218561 0.12040266 0.11864568 0.11691432 0.115208186 0.113526925 0.11187017 0.11023757 0.108628765 0.107043415 0.105481185 0.10394172 0.10242472 0.10092983 0.099456735 0.09800512 0.09657468 0.0951651 0.09377608 0.09240731 0.09105851 0.08972938 0.08841964 0.087129004 0.0858572 0.084603935 0.083368964 0.082152 0.0809528 0.07977109 0.07860662 0.077459134 0.0763284 0.075214155 0.07411618 0.07303421 0.071968034 0.07091742 0.06988213 0.068861954 0.067856655 0.06686603 0.065889865 0.06492794 0.063980065 0.063046016 0.062125593 0.06121861 0.06032486 0.05944415 0.0585763 0.057721116 0.056878414 0.05604801 0.055229723 0.054423384 0.053628813 0.05284584 0.052074295 0.05131401 0.05056483

</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="2.875" PeakHeight="290.319" Num="5" zHalfNm="262.128" Error="0.467">
-69.196 0.387 -0.258 0.124 -0.024
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="8" 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="6517.117" A="-1.1039676E11" B="3.4073076E7" C="-2628.97" Error="0.00178"/>
<QuasiParabolic ID="2" StartDistance="6517.117" EndDistance="6554.235" A="0.0" B="769.2946" C="-0.07800495" Error="0.0158"/>
<QuasiParabolic ID="3" StartDistance="6554.235" EndDistance="6589.0" A="2.21505925E10" B="-6837992.5" C="527.69934" Error="0.0158"/>
<QuasiParabolic ID="4" StartDistance="6589.0" EndDistance="6601.0" A="2.81471825E12" B="-8.5448339E8" C="64850.465" Error="0.037"/>
<QuasiParabolic ID="5" StartDistance="6601.0" EndDistance="6640.0" A="4.9160499E12" B="-1.49115405E9" C="113075.79" Error="0.0371"/>
<QuasiParabolic ID="6" StartDistance="6640.0" EndDistance="6655.0" A="-1.04778695E13" B="3.14556851E9" C="-236075.02" Error="0.00747"/>
<QuasiParabolic ID="7" StartDistance="6655.0" EndDistance="6660.319" A="-1.37611706E13" B="4.13228595E9" C="-310208.53" Error="5.09E-5"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="111.352" Depth="0.154"/>
<TopsideChapman PeakHeight="290.319" PeakDensity="102551.18" PeakScaleHeight="21.245" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
