<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-09 -099 08:05:00.000"
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" >
2026.04.09 (099) 08:05:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.97" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202609904090805001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.575" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.665" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="9.438" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.425" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.425" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="2.900" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.450" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="272.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.425" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.425" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="252.151" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="233.671" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.713" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="26.325" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.503" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="13.962" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="26.510" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.110" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="7">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.425 2.45 2.475 2.5 2.525 2.55 2.575
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
270.000 272.500 278.333 284.167 291.414 299.838 309.752
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 69 0 0 0 69 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-1.5625 1.5625 -10.9375 -4.6875 1.5625 -1.5625 -10.9375
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="362">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 142.75467 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 175.50934 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 208.264 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 252.151 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0
</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 0.35298675 0.35220242 0.35119912 0.34998095 0.3485529 0.34684834 0.3449482 0.34278953 0.34038416 0.3377451 0.33481935 0.33169246 0.32825223 0.32452616 0.3205435 0.31627622 0.31164902 0.3067153 0.30147853 0.2957803 0.2898408 0.28339225 0.27651078 0.2692258 0.26135 0.25299227 0.24396186 0.23430227 0.2238843 0.21264188 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 0.20230693 0.20700856 0.21171017 0.21641178 0.22111341 0.22581503 0.23051664 0.23521827 0.23991989 0.24462152 0.24932313 0.25402474 0.25872636 0.263428 0.26812962 0.27283123 0.27753285 0.28223446 0.2869361 0.29163772 0.29633933 0.30104095 0.30574256 0.3104442 0.31514582 0.31984743 0.32454905 0.32925066 0.33395228 0.33865392 0.34335554 0.34805715 0.35275877 0.354 0.37762117 0.4121061 0.4492429 0.48893702 0.531081 0.5755937 0.6223861 0.671413 0.7226364 0.7760004 0.8314917 0.88904905 0.9486552 1.0102115 1.073664 1.1389076 1.2057861 1.274157 1.3438181 1.4145299 1.4860322 1.5580142 1.6301572 1.7020988 1.773451 1.8438262 1.9128424 1.9800928 2.045197 2.1077926 2.1675196 2.2240505 2.2771084 2.3264177 2.3717372 2.4128761 2.449637 2.4818883 2.509491 2.5323455 2.5503716 2.5635066 2.5717058 2.5749433 2.575 2.574082 2.5707126 2.5649803 2.5570042 2.5469038 2.5347981 2.520805 2.505041 2.4876204 2.4686558 2.4482567 2.4265296 2.4035778 2.379501 2.3543959 2.328355 2.3014674 2.2738185 2.2454891 2.2165573 2.1870968 2.1571774 2.1268659 2.0962248 2.0653133 2.0341876 2.0028994 1.9714987 1.9400314 1.9085405 1.8770663 1.8456461 1.814315 1.7831049 1.7520459 1.7211654 1.6904888 1.6600392 1.6298381 1.5999047 1.5702566 1.5409099 1.511879 1.4831766 1.4548143 1.4268024 1.3991498 1.3718643 1.3449526 1.3184204 1.2922727 1.2665131 1.241145 1.2161705 1.1915915 1.1674087 1.1436226 1.120233 1.0972394 1.0746404 1.0524344 1.0306196 1.0091934 0.98815334 0.9674962 0.9472189 0.9273178 0.9077892 0.8886291 0.86983347 0.85139793 0.8333181 0.8155894 0.7982073 0.78116685 0.76446337 0.74809194 0.73204756 0.7163253 0.70092005 0.6858269 0.6710407 0.6565564 0.64236903 0.62847346 0.61486465 0.6015376 0.5884873 0.57570887 0.5631973 0.5509478 0.5389554 0.5272154 0.5157231 0.5044737 0.49346256 0.48268518 0.47213694 0.46181345 0.45171028 0.44182304 0.4321475 0.4226794 0.4134146 0.40434897 0.39547852 0.38679928 0.37830734 0.36999887 0.3618701 0.35391733 0.3461369 0.33852524 0.33107886 0.32379425 0.3166681 0.30969703 0.30287778 0.2962072 0.2896821 0.2832994 0.2770561 0.2709492 0.26497588 0.2591332 0.25341842 0.24782875 0.24236156 0.23701419 0.23178409 0.22666872 0.2216656 0.21677232 0.21198651 0.20730583 0.20272802 0.19825085 0.19387212 0.18958972 0.18540153 0.18130551 0.17729968 0.17338203 0.16955067 0.1658037 0.1621393 0.15855566 0.155051 0.15162359 0.14827177 0.14499387 0.14178826 0.13865337 0.13558765 0.13258958 0.12965767 0.12679046 0.123986565 0.12124457 0.118563116 0.11594087 0.11337654 0.11086885 0.10841654 0.10601842 0.103673264 0.10137993 0.09913727 0.09694417 0.09479953 0.09270229 0.09065141 0.08864585 0.08668464 0.08476677 0.0828913 0.081057295 0.07926384 0.077510044 0.075795025 0.07411793 0.07247792 0.07087418 0.069305904 0.067772314 0.06627264 0.06480613 0.06337207 0.061969724 0.060598396 0.0592574 0.05794607 0.056663748 0.055409793 0.05418358 0.052984495 0.051811937 0.05066532

</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="2.575" PeakHeight="252.151" Num="5" zHalfNm="233.671" Error="0.329">
-44.18 0.519 -0.347 0.2 -0.079
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="7" 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="6512.755" A="-1.41581615E11" B="4.3698028E7" C="-3371.636" Error="0.00162"/>
<QuasiParabolic ID="2" StartDistance="6512.755" EndDistance="6545.509" A="0.0" B="1206.2545" C="-0.1451851" Error="0.0224"/>
<QuasiParabolic ID="3" StartDistance="6545.509" EndDistance="6577.0" A="2.81718641E10" B="-8699730.0" C="671.6035" Error="0.0224"/>
<QuasiParabolic ID="4" StartDistance="6577.0" EndDistance="6591.0" A="7.2089479E12" B="-2.19230208E9" C="166674.52" Error="0.0331"/>
<QuasiParabolic ID="5" StartDistance="6591.0" EndDistance="6609.0" A="1.02259334E13" B="-3.10778854E9" C="236124.25" Error="0.0416"/>
<QuasiParabolic ID="6" StartDistance="6609.0" EndDistance="6622.151" A="-2.20319114E13" B="6.6540047E9" C="-502398.47" Error="0.0121"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="98.264" Depth="0.154"/>
<TopsideChapman PeakHeight="252.151" PeakDensity="82265.82" PeakScaleHeight="13.962" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
