<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-17 -137 22:00:00.000"
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="20.0">
<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" >
2026.05.17 (137) 22:00:00</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">
FF202613705172200001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.400" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.889" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.223" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.100" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.100" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.600" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="242.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="242.500" 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="3.325" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="258.197" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.356" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.100" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.100" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="233.379" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="221.335" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="5.405" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="17.273" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.629" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="10.587" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="17.330" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.080" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="13">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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" >
242.500 245.000 245.000 247.500 247.500 247.500 250.000 251.978 254.590 258.197 263.504 272.083 288.303
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 78 75 75 75 69 90 90 78 81 66 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-3.125 3.125 3.125 -3.125 -3.125 3.125 -3.125 -3.125 -3.125 3.125 3.125 -3.125 -3.125
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="305">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.456 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 140.91667 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 171.83333 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 202.75 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 233.379 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.21337768 0.23525329 0.25411627 0.27049267 0.28479782 0.29733557 0.3083244 0.3179343 0.32628906 0.33348832 0.339604 0.34469473 0.34880584 0.35197085 0.35421464 0.35555452 0.356 0.35588574 0.3554671 0.35489777 0.35399017 0.35282472 0.3514442 0.3497804 0.34791544 0.3457126 0.343258 0.34049496 0.3375108 0.33418718 0.33055076 0.3266304 0.32239497 0.31776333 0.31284693 0.3075297 0.3018329 0.29571697 0.28912708 0.28212053 0.274542 0.26642537 0.25770056 0.24834676 0.23819582 0.22726674 0.21541743 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 0.20084096 0.2058868 0.21093261 0.21597844 0.22102426 0.22607008 0.2311159 0.23616172 0.24120754 0.24625337 0.2512992 0.256345 0.26139084 0.26643667 0.27148247 0.2765283 0.28157413 0.28661993 0.29166576 0.2967116 0.30175743 0.30680323 0.31184906 0.3168949 0.3219407 0.32698652 0.33203235 0.33707815 0.342124 0.34716982 0.35221565 0.356 0.36935952 0.4267251 0.49055868 0.5610572 0.63842463 0.7228277 0.814353 0.9130665 1.0189023 1.1316789 1.2511417 1.3768219 1.5081018 1.6441859 1.7841184 1.926731 2.0707624 2.2147279 2.3570995 2.4963098 2.630672 2.7585802 2.878455 2.9888344 3.0883384 3.1756983 3.2498586 3.3098915 3.3550777 3.3848486 3.3988533 3.4 3.3988717 3.3924668 3.380715 3.363977 3.3426137 3.3169816 3.2874317 3.2543056 3.2179344 3.1786373 3.1367204 3.0924754 3.0461795 2.998095 2.948469 2.897533 2.845504 2.792584 2.7389605 2.6848075 2.6302853 2.5755408 2.5207095 2.4659147 2.4112685 2.3568728 2.3028195 2.2491915 2.1960626 2.1434991 2.091559 2.0402942 1.9897496 1.939964 1.8909713 1.8427998 1.7954731 1.749011 1.703429 1.6587392 1.6149504 1.5720685 1.5300965 1.4890357 1.4488844 1.4096394 1.3712956 1.3338464 1.2972841 1.2615993 1.2267818 1.1928207 1.1597035 1.1274179 1.0959505 1.0652875 1.0354148 1.0063177 0.97798157 0.95039123 0.92353165 0.8973875 0.8719435 0.8471842 0.8230945 0.799659 0.7768627 0.7546904 0.7331274 0.71215886 0.6917703 0.6719473 0.6526758 0.63394177 0.6157316 0.59803176 0.5808291 0.5641106 0.54786354 0.53207546 0.5167342 0.5018278 0.48734444 0.4732729 0.45960185 0.44632047 0.43341807 0.42088425 0.40870884 0.39688194 0.3853939 0.3742353 0.3633969 0.35286987 0.34264538 0.33271497 0.32307038 0.31370354 0.3046066 0.29577193 0.2871921 0.27885988 0.27076823 0.2629103 0.25527942 0.24786915 0.24067315 0.23368531 0.22689968 0.22031045 0.213912 0.20769885 0.20166567 0.19580731 0.19011873 0.18459503 0.1792315 0.17402348 0.1689665 0.16405623 0.15928842 0.15465894 0.15016381 0.14579916 0.1415612 0.13744627 0.13345082 0.12957138 0.1258046 0.12214722 0.11859606 0.11514807 0.11180022 0.10854965 0.105393514 0.102329075 0.099353686 0.09646476 0.09365979 0.09093633 0.088292025 0.08572458 0.083231755 0.080811396 0.078461386 0.07617969 0.07396432 0.07181336 0.069724925 0.06769721 0.06572845 0.06381693 0.061960977 0.060158994 0.058409408 0.05671069 0.055061366 0.053460002 0.051905204 0.050395615

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.356" PeakHeight="110.0" Num="3" Error="0.0">
-18.863 2.464 -0.145
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.356" EndFrequency="3.4" PeakHeight="233.379" Num="5" zHalfNm="221.335" Error="0.209">
-30.704 0.129 -0.097 0.057 -0.014
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="11" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6460.021" EndDistance="6480.001" A="-5.5636722E11" B="1.71718272E8" C="-13249.74" Error="0.00182"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6510.917" A="-1.61491173E11" B="4.9842952E7" C="-3845.7803" Error="0.0016"/>
<QuasiParabolic ID="2" StartDistance="6510.917" EndDistance="6541.833" A="0.0" B="-1439.2181" C="0.26106495" Error="0.0266"/>
<QuasiParabolic ID="3" StartDistance="6541.833" EndDistance="6554.0" A="1.45628217E11" B="-4.4573184E7" C="3410.7231" Error="0.0376"/>
<QuasiParabolic ID="4" StartDistance="6554.0" EndDistance="6572.0" A="1.95927232E9" B="-731578.3" C="66.078156" Error="0.0154"/>
<QuasiParabolic ID="5" StartDistance="6572.0" EndDistance="6575.0" A="2.23577312E13" B="-6.8040704E9" C="517666.4" Error="0.0243"/>
<QuasiParabolic ID="6" StartDistance="6575.0" EndDistance="6576.0" A="6.7876317E11" B="-2.09707664E8" C="16193.964" Error="0.0"/>
<QuasiParabolic ID="7" StartDistance="6576.0" EndDistance="6579.0" A="2.33305014E13" B="-7.098922E9" C="540008.94" Error="0.0104"/>
<QuasiParabolic ID="8" StartDistance="6579.0" EndDistance="6591.0" A="4.0675626E13" B="-1.2371798E10" C="940744.3" Error="0.0276"/>
<QuasiParabolic ID="9" StartDistance="6591.0" EndDistance="6597.0" A="-3.56658577E12" B="1.05323955E9" C="-77692.79" Error="0.00899"/>
<QuasiParabolic ID="10" StartDistance="6597.0" EndDistance="6603.379" A="-9.5727884E13" B="2.89936056E10" C="-2195349.8" Error="0.0032"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="92.75" Depth="0.156"/>
<TopsideChapman PeakHeight="233.379" PeakDensity="143424.31" PeakScaleHeight="10.587" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
