<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-29 -119 07:50:00.000"
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" >
2026.04.29 (119) 07:50:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.20" 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">
FF202611904290750001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.775" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.856" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="14.556" 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="4.075" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="222.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="222.500" 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="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.600" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="251.153" 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="228.363" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="212.431" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.723" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="22.829" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.912" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="12.110" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="22.050" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.380" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="35">
<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 3.15 3.175 3.2 3.225 3.25 3.275 3.3 3.325 3.35 3.375 3.4 3.425 3.45 3.475 3.5 3.525 3.55 3.575 3.6 3.625 3.65 3.675 3.7 3.725 3.75 3.775
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
222.500 222.500 222.500 225.000 225.000 225.000 225.000 227.500 227.500 230.000 230.000 230.000 230.000 232.500 232.500 232.500 235.000 235.000 237.500 237.500 240.000 242.500 242.500 243.745 245.177 246.844 248.807 251.153 254.007 257.553 262.078 268.053 276.307 288.450 308.079
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 75 87 87 90 90 99 99 102 96 90 90 114 111 87 87 99 102 102 102 99 93 90 90 93 87 84 84 81 78 78 78 57 57 57
</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 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="327">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 136.25 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 162.5 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 188.75 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 228.363 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0
</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 0.353812 0.35332385 0.3524629 0.35123456 0.3496469 0.3477836 0.34551057 0.34284618 0.3398121 0.3363646 0.33256927 0.32832938 0.32366115 0.31855893 0.31297255 0.3068771 0.30027556 0.29307804 0.2853064 0.27685073 0.26765716 0.25764734 0.24675402 0.23483722 0.22173925 0.20734549 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 0.20293333 0.2088 0.21466666 0.22053333 0.2264 0.23226666 0.23813333 0.244 0.24986666 0.25573334 0.2616 0.26746666 0.27333334 0.2792 0.28506666 0.29093334 0.2968 0.30266666 0.30853334 0.3144 0.32026666 0.32613334 0.332 0.33786666 0.34373334 0.3496 0.354 0.36552322 0.41378894 0.46548724 0.5205945 0.5792533 0.64165807 0.70806754 0.7788022 0.85418034 0.9345702 1.0203214 1.1118064 1.2092948 1.3130411 1.4231673 1.5396178 1.6621722 1.7902585 1.9231178 2.0596013 2.1983283 2.337745 2.476172 2.6120083 2.7437003 2.8699377 2.9896717 3.1020017 3.2063568 3.3022702 3.3894932 3.4678464 3.5372577 3.5977163 3.6492436 3.6918738 3.7256641 3.7506633 3.7669075 3.774426 3.775 3.773991 3.768455 3.7583234 3.7438638 3.7253442 3.7030313 3.6771884 3.648074 3.6159408 3.581035 3.5435941 3.503848 3.4620173 3.4183133 3.3729374 3.3260818 3.277928 3.2286484 3.1784055 3.127352 3.075631 3.0233767 2.9707146 2.917761 2.8646245 2.8114054 2.7581964 2.705083 2.6521435 2.59945 2.5470686 2.4950588 2.4434748 2.392366 2.3417764 2.2917457 2.2423089 2.1934974 2.1453388 2.0978572 2.051073 2.0050042 1.9596658 1.9150699 1.8712268 1.8281442 1.7858278 1.7442815 1.7035077 1.6635069 1.6242783 1.5858201 1.5481288 1.5112004 1.4750295 1.43961 1.404935 1.3709971 1.337788 1.3052989 1.2735207 1.2424438 1.2120582 1.1823535 1.1533194 1.1249447 1.0972189 1.0701306 1.0436686 1.0178219 0.99257886 0.9679282 0.94385856 0.9203586 0.89741707 0.8750226 0.853164 0.83183026 0.8110103 0.7906933 0.77086836 0.7515249 0.7326525 0.71424055 0.6962789 0.67875755 0.66166645 0.6449959 0.6287363 0.61287814 0.59741217 0.5823293 0.5676205 0.5532771 0.53929037 0.52565193 0.5123535 0.49938697 0.4867444 0.474418 0.46240017 0.45068341 0.43926048 0.42812422 0.41726762 0.40668392 0.3963664 0.3863085 0.3765039 0.36694637 0.35762978 0.34854817 0.33969578 0.3310669 0.322656 0.31445765 0.30646658 0.2986776 0.29108566 0.2836859 0.27647346 0.2694437 0.26259202 0.25591397 0.24940518 0.24306141 0.23687851 0.23085245 0.22497928 0.21925515 0.21367629 0.20823906 0.2029399 0.19777529 0.19274186 0.18783629 0.18305536 0.17839591 0.17385486 0.16942924 0.1651161 0.16091262 0.156816 0.15282355 0.14893264 0.14514066 0.14144515 0.13784361 0.1343337 0.1309131 0.1275795 0.12433072 0.12116461 0.11807907 0.11507204 0.11214154 0.10928563 0.10650241 0.103790015 0.101146676 0.098570615 0.096060134 0.093613565 0.091229275 0.088905685 0.08664126 0.08443449 0.08228389 0.080188066 0.0781456 0.07615514 0.07421537 0.07232499 0.070482746 0.06868742 0.06693781 0.06523276 0.06357113 0.061951816 0.060373746 0.05883586 0.057337146 0.0558766 0.054453254 0.05306616 0.051714394 0.050397053

</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="3.775" PeakHeight="228.363" Num="5" zHalfNm="212.431" Error="0.923">
-40.823 2.09 -1.498 0.752 -0.134
</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="6506.25" A="-2.20048884E11" B="6.791632E7" C="-5240.3315" Error="0.00141"/>
<QuasiParabolic ID="2" StartDistance="6506.25" EndDistance="6532.5" A="0.0" B="20.435474" C="0.036871724" Error="3.16E-4"/>
<QuasiParabolic ID="3" StartDistance="6532.5" EndDistance="6533.0" A="5.5006179E13" B="-1.68398254E10" C="1288854.0" Error="0.167"/>
<QuasiParabolic ID="4" StartDistance="6533.0" EndDistance="6540.0" A="-1.02290686E12" B="3.12811008E8" C="-23914.803" Error="0.156"/>
<QuasiParabolic ID="5" StartDistance="6540.0" EndDistance="6559.0" A="4.08721392E11" B="-1.249958E8" C="9556.666" Error="0.133"/>
<QuasiParabolic ID="6" StartDistance="6559.0" EndDistance="6570.0" A="1.55370767E13" B="-4.7380024E9" C="361211.38" Error="0.099"/>
<QuasiParabolic ID="7" StartDistance="6570.0" EndDistance="6585.0" A="3.8989558E13" B="-1.18772664E10" C="904534.4" Error="0.0397"/>
<QuasiParabolic ID="8" StartDistance="6585.0" EndDistance="6598.363" A="-5.7446609E13" B="1.74123827E10" C="-1319432.9" Error="0.0135"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="78.75" Depth="0.154"/>
<TopsideChapman PeakHeight="228.363" PeakDensity="176806.77" PeakScaleHeight="12.11" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
