<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-16 -106 07:35:00.000"
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" >
2026.04.16 (106) 07:35:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.98" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202610604160735001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.625" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.816" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="10.018" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.100" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.100" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="2.925" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.450" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="246.067" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.100" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.100" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="227.906" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="211.331" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.776" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="23.668" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.470" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="12.670" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="23.200" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.330" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="22">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.1 2.125 2.15 2.175 2.2 2.225 2.25 2.275 2.3 2.325 2.35 2.375 2.4 2.425 2.45 2.475 2.5 2.525 2.55 2.575 2.6 2.625
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
222.500 223.750 225.000 225.000 227.500 227.500 227.500 230.000 232.500 235.000 235.000 240.000 240.000 242.848 246.067 249.734 253.950 258.848 264.607 271.478 279.817 290.150
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
63 0 78 66 69 69 66 57 57 57 54 66 69 84 78 69 0 0 0 0 66 66
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="320">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 136.25 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 162.5 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 188.75 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 227.906 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0
</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 0.3617492 0.3960117 0.43549076 0.47976637 0.5280976 0.57973146 0.63407296 0.6907832 0.7497149 0.81086427 0.8743103 0.9401722 1.0086081 1.0797396 1.1536827 1.2304747 1.3100998 1.3923814 1.4770374 1.5636041 1.6514329 1.7396891 1.8274151 1.91358 1.9971666 2.0772264 2.1529615 2.2237356 2.2890906 2.348742 2.402513 2.4503403 2.4922354 2.5282507 2.5584552 2.5829344 2.6017694 2.6150224 2.622748 2.625 2.624986 2.6231234 2.6182415 2.6105022 2.6000683 2.587102 2.571765 2.5542166 2.5346134 2.5131083 2.48985 2.4649835 2.4386475 2.4109766 2.3820999 2.3521402 2.3212154 2.2894375 2.2569122 2.2237406 2.190017 2.1558309 2.1212664 2.0864022 2.0513117 2.016064 1.9807225 1.9453472 1.9099927 1.8747102 1.8395463 1.8045443 1.7697437 1.7351806 1.7008879 1.6668956 1.6332307 1.5999173 1.5669776 1.5344307 1.5022942 1.4705831 1.4393106 1.4084882 1.3781257 1.3482313 1.3188119 1.2898728 1.2614183 1.2334516 1.2059747 1.1789886 1.1524936 1.126489 1.1009736 1.0759453 1.0514014 1.0273389 1.003754 0.98064256 0.9580001 0.93582165 0.9141021 0.8928358 0.872017 0.8516398 0.83169794 0.8121851 0.7930948 0.7744205 0.75615543 0.7382928 0.72082585 0.70374775 0.68705153 0.6707303 0.65477717 0.63918525 0.6239477 0.60905766 0.5945083 0.58029294 0.5664049 0.5528375 0.53958416 0.52663845 0.5139939 0.50164425 0.4895832 0.47780457 0.46630234 0.4550705 0.44410315 0.4333945 0.42293885 0.4127306 0.40276426 0.3930344 0.3835357 0.37426296 0.36521107 0.35637498 0.3477498 0.33933067 0.3311129 0.3230918 0.31526285 0.30762166 0.30016378 0.292885 0.28578112 0.27884805 0.2720818 0.26547846 0.2590342 0.25274524 0.24660794 0.24061872 0.23477408 0.22907057 0.22350487 0.21807368 0.21277381 0.20760214 0.2025556 0.1976312 0.19282603 0.18813723 0.18356204 0.17909771 0.17474158 0.17049107 0.16634364 0.16229682 0.15834816 0.15449533 0.150736 0.14706795 0.14348894 0.13999684 0.13658956 0.13326505 0.13002129 0.12685636 0.12376833 0.12075536 0.11781562 0.11494734 0.1121488 0.1094183 0.1067542 0.104154885 0.10161879 0.099144384 0.096730165 0.09437467 0.09207649 0.08983422 0.08764651 0.085512035 0.08342949 0.081397645 0.07941524 0.07748108 0.075594 0.07375286 0.07195653 0.07020393 0.06849399 0.06682568 0.06519799 0.06360993 0.06206053 0.060548857 0.059073992 0.05763504 0.056231122 0.054861393 0.05352502 0.052221186 0.050949108

</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="2.625" PeakHeight="227.906" Num="5" zHalfNm="211.331" Error="1.158">
-39.906 1.589 -1.252 0.726 -0.313
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="8" 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="-495.31943" C="0.116142415" Error="0.00796"/>
<QuasiParabolic ID="3" StartDistance="6532.5" EndDistance="6558.0" A="7.1647691E10" B="-2.2030714E7" C="1693.5468" Error="0.00796"/>
<QuasiParabolic ID="4" StartDistance="6558.0" EndDistance="6559.0" A="1.26437032E13" B="-3.85614336E9" C="294016.88" Error="0.0"/>
<QuasiParabolic ID="5" StartDistance="6559.0" EndDistance="6566.0" A="7.9690654E12" B="-2.43073152E9" C="185356.11" Error="0.0203"/>
<QuasiParabolic ID="6" StartDistance="6566.0" EndDistance="6585.0" A="1.37411816E13" B="-4.1889152E9" C="319241.56" Error="0.033"/>
<QuasiParabolic ID="7" StartDistance="6585.0" EndDistance="6597.906" A="-2.59812827E13" B="7.8756147E9" C="-596819.94" Error="0.00802"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="78.75" Depth="0.154"/>
<TopsideChapman PeakHeight="227.906" PeakDensity="85491.625" PeakScaleHeight="12.67" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
