<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-19 -139 23:30:00.000"
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" >
2026.05.19 (139) 23:30:00</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">
FF202613905192330001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.250" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.608" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.725" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.975" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.975" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.600" 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="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.075" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="277.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.975" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.975" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="262.878" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="243.135" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="4.127" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="28.271" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.850" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="15.134" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="27.110" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.550" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="12">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.975 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" >
265.000 267.500 272.500 275.000 277.500 282.935 289.556 297.797 308.337 322.295 341.653 370.297
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 69 78 78 93 90 81 78 0 87 87 87
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="401">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 145.03934 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 180.07866 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 215.118 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 262.878 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0
</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 0.35313663 0.3524263 0.35157037 0.35049725 0.34921128 0.34779054 0.3460947 0.34420434 0.34212717 0.33980232 0.33731073 0.33459535 0.33160508 0.3284242 0.32494396 0.32125297 0.31731582 0.3131055 0.30860448 0.3038053 0.298686 0.29324093 0.2874589 0.28135213 0.2747979 0.26789516 0.26050228 0.25261453 0.24416229 0.2351487 0.2255034 0.21509284 0.20400904 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 0.20404932 0.20844437 0.21283944 0.21723449 0.22162956 0.22602461 0.23041968 0.23481475 0.2392098 0.24360487 0.24799992 0.25239497 0.25679004 0.2611851 0.26558018 0.26997522 0.27437028 0.27876535 0.28316042 0.28755546 0.29195052 0.2963456 0.30074066 0.30513573 0.30953076 0.31392583 0.3183209 0.32271597 0.327111 0.33150607 0.33590114 0.3402962 0.34469125 0.3490863 0.35348138 0.354 0.38002208 0.41393927 0.4525188 0.49535438 0.5418004 0.59120303 0.6430515 0.69701153 0.7529517 0.8108285 0.87072283 0.93274975 0.99706674 1.0638441 1.133279 1.2055552 1.2808461 1.3592986 1.4410013 1.5259775 1.6141832 1.7053891 1.7992877 1.8953363 1.9928597 2.0909972 2.188795 2.2852387 2.3793654 2.4702337 2.557115 2.639412 2.7166858 2.788656 2.8551939 2.9162436 2.9718153 3.0219884 3.0668628 3.1065497 3.1411777 3.170854 3.1956887 3.2157736 3.2311926 3.2420049 3.248254 3.25 3.2499795 3.2482827 3.2439442 3.2370815 3.2278125 3.2162554 3.2025285 3.1867485 3.1690319 3.1494923 3.128242 3.105391 3.0810466 3.055313 3.028292 3.0000813 2.9707763 2.9404688 2.9092467 2.8771946 2.8443944 2.8109236 2.7768564 2.742264 2.7072139 2.6717699 2.6359932 2.5999417 2.56367 2.527229 2.490668 2.4540327 2.4173658 2.380708 2.344097 2.3075678 2.271154 2.2348857 2.1987917 2.1628985 2.1272306 2.0918107 2.0566595 2.021796 1.987238 1.9530015 1.9191008 1.8855491 1.8523583 1.8195392 1.7871009 1.7550522 1.7234001 1.6921512 1.6613109 1.6308839 1.6008741 1.5712843 1.5421172 1.5133746 1.4850574 1.4571662 1.4297012 1.4026618 1.3760474 1.3498563 1.3240871 1.2987376 1.2738055 1.2492881 1.2251824 1.2014853 1.1781931 1.1553024 1.1328094 1.1107098 1.0889996 1.0676745 1.0467302 1.0261618 1.005965 0.98613495 0.9666668 0.9475559 0.9287972 0.9103857 0.89231664 0.8745849 0.85718554 0.84011346 0.8233637 0.80693126 0.7908111 0.77499825 0.75948775 0.7442747 0.7293541 0.7147211 0.70037085 0.68629855 0.6724994 0.6589688 0.64570194 0.6326942 0.61994106 0.6074379 0.59518033 0.5831639 0.57138425 0.55983704 0.548518 0.537423 0.52654785 0.51588845 0.50544083 0.49520096 0.485165 0.4753291 0.46568945 0.45624232 0.44698405 0.43791106 0.42901975 0.42030665 0.41176835 0.40340146 0.39520267 0.38716868 0.37929633 0.37158245 0.36402395 0.35661778 0.34936097 0.3422506 0.33528376 0.32845762 0.32176942 0.31521645 0.30879602 0.3025055 0.2963423 0.29030395 0.28438792 0.27859175 0.2729131 0.2673496 0.26189896 0.25655892 0.25132728 0.24620183 0.2411805 0.23626116 0.23144177 0.22672033 0.22209488 0.21756347 0.2131242 0.20877525 0.20451477 0.20034099 0.19625214 0.19224654 0.18832247 0.18447831 0.18071245 0.17702328 0.17340925 0.16986887 0.16640063 0.16300306 0.15967473 0.15641424 0.15322024 0.15009134 0.14702623 0.14402363 0.14108226 0.13820088 0.13537827 0.13261324 0.12990461 0.12725125 0.12465202 0.12210583 0.11961159 0.117168255 0.11477478 0.112430155 0.11013339 0.1078835 0.105679534 0.10352056 0.10140566 0.09933394 0.097304516 0.09531652 0.09336913 0.09146149 0.08959281 0.08776228 0.085969135 0.08421261 0.08249196 0.08080645 0.079155356 0.07753799 0.075953655 0.074401684 0.07288141 0.07139219 0.06993339 0.068504386 0.06710458 0.06573336 0.06439015 0.06307439 0.061785497 0.060522944 0.05928618 0.058074683 0.05688794 0.055725437 0.05458669 0.053471204 0.052378513 0.051308144 0.050259646

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</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="262.878" Num="5" zHalfNm="243.135" Error="1.683">
-49.407 3.067 -2.179 1.26 -0.501
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="12" 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="6515.039" A="-1.23806425E11" B="3.821186E7" C="-2948.3206" Error="0.00171"/>
<QuasiParabolic ID="2" StartDistance="6515.039" EndDistance="6550.079" A="0.0" B="40.179493" C="0.033865802" Error="8.25E-4"/>
<QuasiParabolic ID="3" StartDistance="6550.079" EndDistance="6551.0" A="-2.4643468E12" B="7.5231283E8" C="-57416.25" Error="0.0"/>
<QuasiParabolic ID="4" StartDistance="6551.0" EndDistance="6556.0" A="2.20334375E11" B="-6.7311984E7" C="5140.9795" Error="0.0196"/>
<QuasiParabolic ID="5" StartDistance="6556.0" EndDistance="6583.0" A="2.18719355E10" B="-6768222.0" C="523.54803" Error="0.016"/>
<QuasiParabolic ID="6" StartDistance="6583.0" EndDistance="6584.0" A="-1.33083745E12" B="4.04202272E8" C="-30690.98" Error="0.0"/>
<QuasiParabolic ID="7" StartDistance="6584.0" EndDistance="6587.0" A="9.2427644E12" B="-2.80770586E9" C="213226.72" Error="0.0187"/>
<QuasiParabolic ID="8" StartDistance="6587.0" EndDistance="6597.0" A="7.3519475E12" B="-2.23360026E9" C="169648.03" Error="0.0189"/>
<QuasiParabolic ID="9" StartDistance="6597.0" EndDistance="6616.0" A="1.88075863E13" B="-5.7065846E9" C="432872.56" Error="0.0177"/>
<QuasiParabolic ID="10" StartDistance="6616.0" EndDistance="6631.0" A="-2.7299911E13" B="8.231595E9" C="-620496.5" Error="0.00777"/>
<QuasiParabolic ID="11" StartDistance="6631.0" EndDistance="6632.878" A="-2.84624693E13" B="8.5822377E9" C="-646936.2" Error="5.72E-8"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="105.118" Depth="0.154"/>
<TopsideChapman PeakHeight="262.878" PeakDensity="131048.39" PeakScaleHeight="15.134" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
