<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-17 -137 21:30:00.000"
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) 21:30:00</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">
FF202613705172130001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.375" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.972" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="17.378" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.200" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.200" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.750" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="207.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="207.500" 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="4.250" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="245.447" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.518" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.200" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.200" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="214.763" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="199.162" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="6.071" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="22.293" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.217" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="11.980" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="20.960" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.730" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="48">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 3.8 3.825 3.85 3.875 3.9 3.925 3.95 3.975 4.0 4.025 4.05 4.075 4.1 4.125 4.15 4.175 4.2 4.225 4.25 4.275 4.3 4.325 4.35 4.375
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
207.500 207.500 207.500 207.500 207.500 207.500 210.000 210.000 210.000 210.000 212.500 212.500 212.500 212.500 212.500 212.500 215.000 215.000 215.000 215.000 217.500 217.500 217.500 218.750 220.000 220.000 222.500 222.500 222.500 225.000 225.000 227.500 227.500 230.000 230.000 232.500 235.000 235.000 235.000 237.020 239.371 242.139 245.447 249.471 254.471 260.851 269.273 280.905
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 72 72 96 96 81 81 72 72 84 78 69 72 75 75 72 72 72 69 69 69 0 0 0 0 66 66 93 93 90 90 0 78 78 78 0 0 78 78 78 78 69 69 81 81 78 0 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 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 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 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="319">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
91.527 92.0 93.0 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 132.75 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 155.5 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 178.25 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 214.763 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.22471759 0.2717244 0.31047928 0.34278408 0.3702685 0.3940143 0.4147227 0.4328643 0.4487727 0.46269718 0.47481492 0.48526195 0.4941458 0.5015464 0.5075267 0.51213306 0.5154003 0.51735103 0.518 0.5176683 0.51672584 0.5151284 0.5128889 0.50995207 0.5063706 0.50217843 0.49722636 0.49157405 0.4852 0.47801608 0.47005218 0.4612053 0.45150667 0.44082564 0.42914286 0.41632488 0.4022542 0.38681808 0.36975738 0.3508597 0.32980722 0.309 0.309 0.309 0.309 0.309 0.309 0.309 0.309 0.309 0.309 0.309 0.309 0.309 0.309 0.309 0.309 0.309 0.309 0.309 0.309 0.309 0.309 0.309 0.309 0.309 0.31359342 0.32278022 0.33196703 0.34115386 0.35034066 0.35952747 0.36871427 0.3779011 0.3870879 0.39627472 0.40546155 0.41464835 0.42383516 0.433022 0.4422088 0.4513956 0.4605824 0.46976924 0.47895604 0.48814285 0.49732968 0.50651646 0.5157033 0.518 0.56002116 0.6238942 0.6960276 0.7752364 0.86047095 0.95107454 1.0468004 1.1477596 1.2543231 1.3669629 1.4862545 1.6128486 1.7473189 1.890098 2.041423 2.2010162 2.3680391 2.5408185 2.7169151 2.8931575 3.0661325 3.232577 3.3898659 3.5360968 3.670145 3.7915716 3.9003413 3.9966984 4.081068 4.153923 4.21575 4.2669544 4.307933 4.338994 4.360386 4.372267 4.375 4.3748336 4.3705435 4.3606896 4.345591 4.3255687 4.3009434 4.2720304 4.239143 4.2025847 4.1626534 4.1196365 4.0738125 4.0254483 3.9747999 3.9221115 3.8676157 3.8115335 3.7540731 3.6954322 3.6357954 3.5753365 3.5142183 3.4525926 3.3906007 3.3283737 3.266033 3.203691 3.1414506 3.0794075 3.0176477 2.9562511 2.8952897 2.834829 2.774928 2.7156403 2.6570127 2.5990882 2.5419037 2.4854927 2.4298835 2.375101 2.3211663 2.2680972 2.2159085 2.1646118 2.114216 2.0647285 2.0161533 1.9684929 1.9217479 1.8759173 1.8309984 1.7869872 1.7438782 1.7016652 1.6603404 1.6198958 1.5803219 1.5416088 1.503746 1.4667224 1.4305261 1.3951454 1.3605677 1.3267803 1.2937703 1.2615244 1.2300293 1.1992717 1.169238 1.1399144 1.1112875 1.0833436 1.0560693 1.0294509 1.003475 0.97812825 0.95339745 0.92926943 0.9057312 0.88277 0.860373 0.8385278 0.81722206 0.7964435 0.77618027 0.7564205 0.7371526 0.71836513 0.700047 0.68218714 0.6647748 0.64779925 0.63125026 0.6151176 0.5993912 0.5840614 0.5691185 0.5545532 0.5403563 0.5265188 0.5130319 0.49988702 0.48707575 0.47458985 0.46242127 0.45056215 0.43900484 0.42774183 0.41676578 0.40606952 0.39564607 0.3854886 0.3755904 0.36594504 0.35654613 0.34738746 0.33846298 0.32976678 0.3212931 0.3130363 0.3049909 0.29715157 0.28951305 0.28207028 0.27481827 0.26775217 0.26086727 0.25415897 0.24762274 0.24125421 0.23504913 0.2290033 0.22311267 0.2173733 0.2117813 0.20633289 0.20102444 0.19585237 0.19081317 0.18590344 0.18111989 0.17645927 0.17191844 0.16749433 0.16318394 0.15898436 0.15489277 0.15090638 0.1470225 0.1432385 0.13955182 0.13595995 0.13246046 0.129051 0.12572923 0.122492924 0.11933987 0.11626793 0.11327503 0.110359125 0.107518256 0.104750484 0.102053925 0.09942676 0.0968672 0.09437352 0.091943994 0.089577004 0.08727093 0.08502421 0.08283531 0.080702744 0.078625076 0.07660088 0.074628785 0.07270745 0.07083557 0.069011874 0.06723512 0.065504104 0.06381765 0.062174607 0.060573857 0.059014317 0.05749492 0.05601464 0.054572467 0.053167418 0.05179854 0.050464906

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.518" PeakHeight="110.0" Num="3" Error="0.0">
-22.589 4.549 -0.433
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.518" EndFrequency="4.375" PeakHeight="214.763" Num="5" zHalfNm="199.162" Error="0.848">
-38.058 2.98 -2.171 1.064 -0.328
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="10" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6460.001" EndDistance="6480.001" A="-1.17586172E12" B="3.62920288E8" C="-28002.842" Error="0.0139"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6502.75" A="-5.916539E11" B="1.82609232E8" C="-14089.95" Error="0.00402"/>
<QuasiParabolic ID="2" StartDistance="6502.75" EndDistance="6525.5" A="0.0" B="-3119.3516" C="0.57556206" Error="0.0215"/>
<QuasiParabolic ID="3" StartDistance="6525.5" EndDistance="6545.0" A="2.38663467E11" B="-7.3347392E7" C="5635.4385" Error="0.0215"/>
<QuasiParabolic ID="4" StartDistance="6545.0" EndDistance="6547.0" A="-1.9079978E12" B="5.8262246E8" C="-44476.848" Error="0.00115"/>
<QuasiParabolic ID="5" StartDistance="6547.0" EndDistance="6550.0" A="2.39965464E13" B="-7.3307863E9" C="559876.94" Error="0.0239"/>
<QuasiParabolic ID="6" StartDistance="6550.0" EndDistance="6557.0" A="2.21878954E13" B="-6.7785262E9" C="517719.72" Error="0.0123"/>
<QuasiParabolic ID="7" StartDistance="6557.0" EndDistance="6569.0" A="6.2168586E13" B="-1.89733376E10" C="1447627.6" Error="0.0275"/>
<QuasiParabolic ID="8" StartDistance="6569.0" EndDistance="6573.0" A="-1.94399678E13" B="5.8732298E9" C="-443571.06" Error="0.00259"/>
<QuasiParabolic ID="9" StartDistance="6573.0" EndDistance="6584.763" A="-7.7025348E13" B="2.33950249E10" C="-1776432.4" Error="0.00139"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="68.25" Depth="0.209"/>
<TopsideChapman PeakHeight="214.763" PeakDensity="237476.73" PeakScaleHeight="11.98" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
