<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-13 -103 07:20:00.000"
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" >
2026.04.13 (103) 07:20:00</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">
FF202610304130720001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.675" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.651" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="9.765" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.350" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.350" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="2.850" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="260.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="260.000" 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="0.025" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.600" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="286.116" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.350" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.350" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="253.869" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="236.927" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.860" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="24.158" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.499" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="12.824" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="24.030" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.180" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="14">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.35 2.375 2.4 2.425 2.45 2.475 2.5 2.525 2.55 2.575 2.6 2.625 2.65 2.675
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
260.000 262.500 265.000 267.500 267.500 270.000 272.500 275.000 278.179 281.844 286.116 291.159 297.202 304.576
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
60 69 69 84 81 72 72 72 0 0 0 0 0 0
</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 -4.6875
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="349">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 144.548 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 179.096 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 213.644 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 253.869 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0
</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 0.35362422 0.35313663 0.3524263 0.35149595 0.35042334 0.349138 0.34757233 0.345879 0.34392017 0.34177685 0.3393885 0.33683622 0.3339966 0.3309542 0.32766116 0.32407692 0.3202904 0.31620827 0.31181076 0.30719745 0.30222493 0.2969839 0.2913486 0.28532708 0.27895257 0.27220613 0.26497847 0.25730035 0.24910259 0.24023151 0.23084155 0.22075178 0.20984899 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 0.2 0.2 0.20402963 0.20848721 0.21294478 0.21740234 0.2218599 0.22631747 0.23077504 0.2352326 0.23969017 0.24414773 0.2486053 0.25306287 0.25752044 0.261978 0.26643556 0.27089313 0.2753507 0.27980825 0.28426585 0.2887234 0.29318097 0.29763854 0.3020961 0.30655366 0.31101122 0.3154688 0.31992635 0.32438394 0.3288415 0.33329907 0.33775663 0.3422142 0.34667176 0.35112932 0.354 0.3667142 0.4046347 0.44572136 0.48984873 0.53688705 0.5867788 0.6394814 0.6949693 0.75324994 0.8143163 0.8781836 0.94483495 1.0142411 1.0863113 1.1609266 1.2379286 1.3170776 1.3980628 1.4805212 1.5639977 1.6479976 1.7319775 1.8153496 1.8974897 1.977808 2.0557017 2.1306193 2.2020726 2.2695737 2.332736 2.3912075 2.4446957 2.4929733 2.5358357 2.5731242 2.6047301 2.630554 2.6505308 2.6646054 2.6727517 2.675 2.6749728 2.6730056 2.668039 2.6602318 2.6497438 2.6367352 2.621364 2.603788 2.5841599 2.5626311 2.539348 2.5144527 2.488083 2.4603708 2.4314442 2.4014244 2.370428 2.3385658 2.305943 2.2726593 2.238809 2.2044811 2.169759 2.1347213 2.0994413 2.063988 2.0284255 1.9928129 1.9572059 1.9216557 1.8862092 1.8509104 1.815799 1.7809117 1.7462819 1.71194 1.6779139 1.6442283 1.6109056 1.5779661 1.5454273 1.5133053 1.4816138 1.450365 1.419569 1.389235 1.3593701 1.3299804 1.3010707 1.2726445 1.2447047 1.2172525 1.1902888 1.1638135 1.1378255 1.1123234 1.087305 1.0627674 1.0387073 1.015121 0.99200416 0.96935236 0.9471606 0.9254237 0.9041361 0.88329214 0.86288583 0.84291106 0.8233616 0.804231 0.78551275 0.76720035 0.749287 0.73176616 0.7146309 0.69787455 0.6814903 0.6654714 0.64981097 0.63450235 0.61953884 0.6049138 0.5906205 0.5766524 0.56300306 0.549666 0.53663474 0.52390313 0.51146483 0.4993138 0.48744392 0.4758492 0.4645238 0.45346192 0.4426578 0.4321059 0.42180067 0.4117367 0.40190864 0.39231128 0.38293946 0.37378818 0.36485243 0.35612738 0.34760827 0.33929044 0.3311693 0.32324037 0.31549925 0.30794165 0.3005633 0.29336014 0.2863281 0.2794632 0.2727616 0.2662195 0.25983316 0.253599 0.24751341 0.24157296 0.23577423 0.23011392 0.22458878 0.21919562 0.21393132 0.20879288 0.20377733 0.19888173 0.19410329 0.18943922 0.18488681 0.18044344 0.17610648 0.17187345 0.16774186 0.16370931 0.15977344 0.15593195 0.1521826 0.14852318 0.14495157 0.14146566 0.13806342 0.13474284 0.13150199 0.12833895 0.12525184 0.122238904 0.119298324 0.116428375 0.11362738 0.11089368 0.10822567 0.10562178 0.10308046 0.10060023 0.0981796 0.09581717 0.09351154 0.09126133 0.089065224 0.08692192 0.08483016 0.0827887 0.08079633 0.07885188 0.0769542 0.07510216 0.07329466 0.07153065 0.069809064 0.0681289 0.06648915 0.06488885 0.06332705 0.061802827 0.060315277 0.058863517 0.05744669 0.056063954 0.054714486 0.05339749 0.052112192 0.05085782

</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="2.675" PeakHeight="253.869" Num="5" zHalfNm="236.927" Error="0.451">
-40.749 0.901 -0.591 0.3 -0.086
</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="6514.548" A="-1.27332213E11" B="3.9300064E7" C="-3032.287" Error="0.00168"/>
<QuasiParabolic ID="2" StartDistance="6514.548" EndDistance="6549.096" A="0.0" B="-3603.069" C="0.5931129" Error="0.0738"/>
<QuasiParabolic ID="3" StartDistance="6549.096" EndDistance="6578.0" A="8.6352896E10" B="-2.6410096E7" C="2019.3488" Error="0.0738"/>
<QuasiParabolic ID="4" StartDistance="6578.0" EndDistance="6580.0" A="-7.8256597E11" B="2.37779296E8" C="-18061.936" Error="0.00155"/>
<QuasiParabolic ID="5" StartDistance="6580.0" EndDistance="6584.0" A="2.14229464E12" B="-6.512361E8" C="49492.426" Error="0.0511"/>
<QuasiParabolic ID="6" StartDistance="6584.0" EndDistance="6588.0" A="1.03368937E13" B="-3.14048256E9" C="238529.97" Error="0.0762"/>
<QuasiParabolic ID="7" StartDistance="6588.0" EndDistance="6612.0" A="1.15860318E13" B="-3.51969869E9" C="267310.78" Error="0.0725"/>
<QuasiParabolic ID="8" StartDistance="6612.0" EndDistance="6623.869" A="-2.79553885E13" B="8.4408033E9" C="-637143.4" Error="0.0094"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="103.644" Depth="0.154"/>
<TopsideChapman PeakHeight="253.869" PeakDensity="88779.47" PeakScaleHeight="12.824" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
