<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-11 -131 01:40:00.000"
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" >
2026.05.11 (131) 01:40:00</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">
FF202613105110140001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.125" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.667" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.461" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.925" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.925" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.475" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="265.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="265.000" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.975" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="273.549" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.925" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.925" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="263.740" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="244.443" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.327" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="27.638" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.776" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.974" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="25.290" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.090" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="9">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.925 2.95 2.975 3.0 3.025 3.05 3.075 3.1 3.125
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
265.000 270.000 273.549 278.181 284.481 293.549 307.722 332.999 390.838
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
57 57 63 63 69 69 81 78 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="397">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 146.16667 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 182.33333 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 218.5 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 263.74 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0
</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 0.34950462 0.34815413 0.3465988 0.34484506 0.3429001 0.34070218 0.33833194 0.335799 0.33304724 0.3300264 0.32682016 0.3233834 0.31967828 0.3157338 0.31158027 0.30708545 0.3023534 0.2973057 0.29203182 0.28632477 0.2803815 0.27398396 0.26722857 0.25997394 0.25233078 0.2441541 0.23540089 0.22610123 0.21613485 0.20538878 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 0.2028387 0.20709677 0.21135484 0.2156129 0.21987097 0.22412904 0.2283871 0.23264515 0.23690322 0.24116129 0.24541935 0.24967742 0.2539355 0.25819355 0.26245162 0.2667097 0.27096775 0.27522582 0.27948388 0.28374192 0.288 0.29225805 0.29651612 0.3007742 0.30503225 0.30929032 0.3135484 0.31780645 0.32206452 0.3263226 0.33058065 0.33483872 0.33909678 0.34335485 0.34761292 0.35187095 0.354 0.36648378 0.39573747 0.4316877 0.47488034 0.52455795 0.5788694 0.6359802 0.69470584 0.7545584 0.81548685 0.8776685 0.9413908 1.0069964 1.0748484 1.1453443 1.2188835 1.2958862 1.3767276 1.4617591 1.5512456 1.6452827 1.7436807 1.8459054 1.9509872 2.0574145 2.1633813 2.2669003 2.3661757 2.4597783 2.5468085 2.6267755 2.6995904 2.7653985 2.8245053 2.8772533 2.9240234 2.9651718 3.0010366 3.0319064 3.0580435 3.079658 3.0969324 3.1100001 3.1189685 3.1239111 3.125 3.1249082 3.1228774 3.118269 3.1112 3.101788 3.0901496 3.0764027 3.0606625 3.0430446 3.0236611 3.0026233 2.9800398 2.956016 2.930655 2.9040563 2.876317 2.8475304 2.8177862 2.787171 2.7557678 2.7236562 2.6909122 2.6576085 2.6238139 2.5895946 2.5550127 2.5201275 2.4849951 2.4496684 2.4141972 2.3786285 2.3430064 2.3073726 2.2717657 2.2362223 2.2007759 2.1654584 2.130299 2.0953252 2.060562 2.0260324 1.9917582 1.9577591 1.9240531 1.8906566 1.8575846 1.8248508 1.7924672 1.760445 1.728794 1.6975228 1.6666389 1.6361492 1.6060593 1.576374 1.5470974 1.518233 1.4897828 1.4617492 1.4341333 1.4069358 1.3801569 1.3537961 1.3278528 1.3023258 1.2772135 1.2525136 1.2282242 1.2043424 1.1808654 1.1577901 1.135113 1.1128305 1.0909389 1.0694342 1.0483122 1.0275687 1.0071992 0.98719937 0.96756446 0.94828993 0.9293709 0.91080266 0.8925803 0.8746989 0.85715353 0.83993924 0.82305115 0.80648416 0.7902334 0.7742938 0.75866044 0.7433284 0.7282927 0.7135484 0.6990908 0.6849148 0.67101586 0.65738904 0.6440297 0.6309331 0.61809456 0.60550964 0.5931737 0.5810823 0.5692309 0.5576153 0.5462311 0.53507394 0.5241397 0.5134243 0.5029235 0.49263334 0.48254988 0.47266915 0.4629873 0.45350057 0.44420522 0.43509752 0.42617393 0.41743082 0.40886474 0.40047222 0.3922499 0.38419446 0.3763026 0.36857113 0.36099687 0.35357678 0.34630775 0.33918685 0.3322111 0.3253776 0.3186836 0.31212625 0.30570284 0.2994107 0.29324722 0.28720978 0.2812959 0.27550307 0.26982886 0.26427087 0.25882676 0.25349426 0.2482711 0.24315506 0.23814398 0.23323575 0.22842824 0.22371948 0.2191074 0.21459007 0.21016555 0.20583196 0.20158745 0.19743021 0.19335844 0.18937042 0.18546443 0.1816388 0.1778919 0.17422211 0.17062785 0.16710758 0.16365978 0.16028298 0.15697573 0.15373659 0.15056418 0.14745711 0.14441407 0.14143372 0.13851479 0.13565601 0.13285616 0.13011402 0.12742841 0.12479816 0.12222214 0.11969923 0.117228344 0.11480842 0.112438396 0.11011725 0.10784397 0.10561759 0.10343713 0.101301655 0.09921023 0.097161956 0.09515594 0.09319131 0.09126722 0.08938283 0.08753732 0.0857299 0.08395977 0.08222618 0.080528356 0.07886558 0.07723712 0.07564227 0.07408034 0.07255065 0.07105253 0.06958533 0.06814843 0.066741176 0.065362975 0.06401323 0.062691346 0.061396755 0.060128886 0.058887195 0.057671137 0.056480184 0.055313822 0.05417154 0.05305284 0.05195724 0.050884258

</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="3.125" PeakHeight="263.74" Num="5" zHalfNm="244.443" Error="2.13">
-47.747 4.712 -3.256 1.922 -0.871
</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="6516.167" A="-1.16244783E11" B="3.587802E7" C="-2768.2405" Error="0.00174"/>
<QuasiParabolic ID="2" StartDistance="6516.167" EndDistance="6552.333" A="0.0" B="903.04236" C="-0.0985522" Error="0.0183"/>
<QuasiParabolic ID="3" StartDistance="6552.333" EndDistance="6582.0" A="2.26057073E10" B="-6982315.0" C="539.1283" Error="0.0183"/>
<QuasiParabolic ID="4" StartDistance="6582.0" EndDistance="6588.0" A="1.11892546E11" B="-3.4112924E7" C="2600.0984" Error="0.00234"/>
<QuasiParabolic ID="5" StartDistance="6588.0" EndDistance="6591.0" A="1.06331835E13" B="-3.22819046E9" C="245016.42" Error="0.0192"/>
<QuasiParabolic ID="6" StartDistance="6591.0" EndDistance="6598.0" A="8.4186539E12" B="-2.55620429E9" C="194038.88" Error="0.00746"/>
<QuasiParabolic ID="7" StartDistance="6598.0" EndDistance="6605.0" A="1.27317427E13" B="-3.86359706E9" C="293113.8" Error="0.0115"/>
<QuasiParabolic ID="8" StartDistance="6605.0" EndDistance="6615.0" A="2.90245564E13" B="-8.7970755E9" C="666579.25" Error="0.00764"/>
<QuasiParabolic ID="9" StartDistance="6615.0" EndDistance="6633.74" A="-2.54065875E13" B="7.6598077E9" C="-577327.3" Error="0.00381"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="108.5" Depth="0.154"/>
<TopsideChapman PeakHeight="263.74" PeakDensity="121161.6" PeakScaleHeight="14.974" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
