<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-04 -124 06:05:00.000"
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" >
2026.05.04 (124) 06:05:00</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">
FF202612405040605001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.400" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.635" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.360" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.950" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.950" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.750" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="250.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="250.000" 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="3.225" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="275.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.950" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.950" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="251.972" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="233.988" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.667" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="25.736" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.843" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="13.747" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="24.620" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.520" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="19">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.95 2.975 3.0 3.025 3.05 3.075 3.1 3.125 3.15 3.175 3.2 3.225 3.25 3.275 3.3 3.325 3.35 3.375 3.4
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
250.000 252.500 252.500 252.500 255.000 257.500 260.000 262.500 265.000 272.500 272.500 275.000 285.000 287.500 292.500 300.000 307.500 320.734 340.049
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
72 75 78 102 99 96 93 93 93 90 93 93 90 93 93 93 96 96 90
</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 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="370">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 142.66667 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 175.33333 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 251.972 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0
</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 0.3448765 0.3427189 0.34031472 0.33767694 0.33475268 0.3315615 0.3281247 0.32440233 0.3203629 0.31604326 0.3114253 0.3064471 0.3011715 0.2954905 0.2894757 0.282966 0.27603868 0.26865014 0.2607728 0.25231564 0.24324727 0.23349129 0.22299255 0.211631 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 0.20314285 0.20785715 0.21257143 0.21728571 0.222 0.22671428 0.23142858 0.23614286 0.24085714 0.24557143 0.2502857 0.255 0.25971428 0.2644286 0.26914287 0.27385715 0.27857143 0.2832857 0.288 0.2927143 0.29742858 0.30214286 0.30685714 0.31157142 0.3162857 0.321 0.3257143 0.33042857 0.33514285 0.33985713 0.34457144 0.34928572 0.354 0.39138597 0.43245623 0.4768204 0.5241622 0.5742642 0.6270398 0.6825003 0.7407493 0.8019292 0.86625063 0.9339284 1.0052264 1.080392 1.1596931 1.2433765 1.3316014 1.4245178 1.5220921 1.6241884 1.7304484 1.840247 1.9527255 2.0668097 2.181218 2.2945676 2.4055223 2.512867 2.6155555 2.7127612 2.8039093 2.8886259 2.966671 3.0379755 3.1025407 3.1604385 3.2117753 3.2566717 3.2952507 3.3276396 3.3539534 3.3742785 3.3886936 3.3972561 3.4 3.3999987 3.3981724 3.3929982 3.38464 3.3732626 3.359031 3.3421097 3.3226612 3.300846 3.276822 3.250743 3.2227592 3.1930165 3.1616564 3.128815 3.0946238 3.0592089 3.0226912 2.9851863 2.9468045 2.9076502 2.8678236 2.8274188 2.7865248 2.7452261 2.703602 2.6617272 2.6196713 2.5775003 2.535275 2.493053 2.450887 2.4088268 2.3669178 2.3252025 2.2837198 2.2425056 2.2015927 2.1610115 2.120789 2.0809505 2.0415182 2.0025127 1.963952 1.9258523 1.888228 1.8510917 1.8144546 1.7783257 1.7427132 1.7076241 1.6730634 1.6390358 1.6055444 1.5725914 1.5401783 1.5083055 1.4769728 1.446179 1.4159228 1.3862015 1.3570126 1.3283527 1.300218 1.2726042 1.2455069 1.218921 1.1928413 1.1672622 1.1421782 1.117583 1.0934708 1.069835 1.046669 1.0239666 1.0017207 0.9799247 0.9585717 0.93765473 0.91716695 0.89710134 0.8774508 0.8582085 0.8393673 0.8209202 0.80286044 0.7851809 0.76787484 0.7509354 0.7343557 0.7181291 0.702249 0.6867087 0.6715017 0.6566216 0.64206195 0.62781656 0.61387914 0.6002436 0.586904 0.57385415 0.5610884 0.54860085 0.53638583 0.52443784 0.5127513 0.5013208 0.49014103 0.47920674 0.46851283 0.45805424 0.447826 0.43782324 0.4280412 0.41847518 0.40912056 0.39997283 0.3910276 0.38228047 0.37372723 0.36536366 0.35718566 0.34918928 0.34137052 0.33372554 0.32625058 0.31894192 0.31179595 0.30480912 0.29797792 0.291299 0.28476894 0.27838454 0.27214256 0.2660399 0.26007348 0.25424033 0.24853745 0.242962 0.23751117 0.2321822 0.22697239 0.2218791 0.21689975 0.21203181 0.20727283 0.20262037 0.19807208 0.19362563 0.18927877 0.18502927 0.18087496 0.17681375 0.17284355 0.16896231 0.16516809 0.16145892 0.15783292 0.15428822 0.15082301 0.14743552 0.144124 0.14088677 0.13772216 0.13462855 0.13160436 0.12864801 0.12575802 0.12293289 0.12017116 0.11747141 0.11483227 0.11225237 0.109730385 0.107265025 0.10485501 0.102499105 0.1001961 0.09794481 0.095744066 0.09359275 0.09148975 0.08943397 0.08742437 0.085459895 0.083539546 0.081662335 0.07982728 0.07803345 0.076279916 0.07456577 0.07289013 0.07125214 0.06965093 0.06808571 0.06655565 0.06505996 0.06359787 0.06216864 0.060771514 0.05940578 0.058070734 0.056765683 0.055489954 0.05424289 0.05302385 0.0518322 0.050667327

</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="3.4" PeakHeight="251.972" Num="5" zHalfNm="233.988" Error="1.7">
-45.323 2.629 -2.111 1.118 -0.285
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="9" 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="6512.667" A="-1.42344143E11" B="4.3933376E7" C="-3389.796" Error="0.00162"/>
<QuasiParabolic ID="2" StartDistance="6512.667" EndDistance="6545.333" A="0.0" B="1457.7621" C="-0.18380734" Error="0.0272"/>
<QuasiParabolic ID="3" StartDistance="6545.333" EndDistance="6575.0" A="2.34185421E10" B="-7250661.0" C="561.1657" Error="0.0272"/>
<QuasiParabolic ID="4" StartDistance="6575.0" EndDistance="6577.0" A="1.20853915E12" B="-3.67743616E8" C="27975.08" Error="0.00246"/>
<QuasiParabolic ID="5" StartDistance="6577.0" EndDistance="6585.0" A="8.527808E12" B="-2.59346022E9" C="197179.62" Error="0.0376"/>
<QuasiParabolic ID="6" StartDistance="6585.0" EndDistance="6594.0" A="1.49690138E13" B="-4.5497871E9" C="345723.78" Error="0.0397"/>
<QuasiParabolic ID="7" StartDistance="6594.0" EndDistance="6606.0" A="3.03762925E13" B="-9.2229079E9" C="700070.2" Error="0.0345"/>
<QuasiParabolic ID="8" StartDistance="6606.0" EndDistance="6621.972" A="-3.6058104E13" B="1.08904428E10" C="-822284.5" Error="0.0129"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="98.0" Depth="0.154"/>
<TopsideChapman PeakHeight="251.972" PeakDensity="143424.31" PeakScaleHeight="13.747" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
