<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-14 -104 06:20:00.000"
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" >
2026.04.14 (104) 06:20:00</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">
FF202610404140620001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.025" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.630" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="10.979" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.400" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.400" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.325" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="240.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="240.000" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.850" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="272.940" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.400" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.400" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="248.893" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="229.137" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.242" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="28.246" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.736" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="15.111" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="27.140" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.500" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="26">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.4 2.425 2.45 2.475 2.5 2.525 2.55 2.575 2.6 2.625 2.65 2.675 2.7 2.725 2.75 2.775 2.8 2.825 2.85 2.875 2.9 2.925 2.95 2.975 3.0 3.025
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
240.000 242.500 242.500 242.500 243.929 245.357 246.786 248.214 249.643 251.071 252.500 254.170 256.013 258.059 260.343 262.909 265.813 269.125 272.940 277.380 282.613 288.872 296.493 305.972 318.085 334.106
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 78 84 69 0 0 0 0 0 0 69 69 69 0 69 60 57 0 45 0 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 1.5625 -1.5625 1.5625 1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -1.5625 1.5625 1.5625 4.6875 -1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="382">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 140.33333 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 170.66667 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 248.893 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0
</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 0.35347393 0.35283697 0.35190412 0.35075444 0.34931904 0.34760568 0.34569573 0.3434548 0.34089813 0.338043 0.33497614 0.33158195 0.3278234 0.3237977 0.31935477 0.31466332 0.30954042 0.30405807 0.29813874 0.29176548 0.28499955 0.27773643 0.26987928 0.2613832 0.2523016 0.2425206 0.23193197 0.22042523 0.20793872 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 0.20169231 0.20676923 0.21184616 0.21692307 0.222 0.22707692 0.23215385 0.23723076 0.2423077 0.24738462 0.25246155 0.25753847 0.26261538 0.2676923 0.27276924 0.27784616 0.28292307 0.288 0.29307693 0.29815385 0.30323076 0.30830768 0.31338462 0.31846154 0.32353845 0.3286154 0.3336923 0.33876923 0.34384614 0.3489231 0.354 0.3845264 0.4178768 0.45383933 0.49218938 0.53275007 0.5753993 0.62009394 0.66682625 0.715628 0.76660013 0.81983286 0.87546176 0.93363136 0.9944871 1.0581884 1.1248583 1.194632 1.2675691 1.3437274 1.4230372 1.5053647 1.5904291 1.677857 1.7670691 1.8574176 1.9480827 2.0382311 2.1269915 2.213523 2.2970777 2.3770497 2.452922 2.5243359 2.5910442 2.6528902 2.7098174 2.7618155 2.8088977 2.851125 2.8885818 2.9213374 2.9494803 2.9730802 2.992211 3.0069244 3.0172706 3.0232813 3.025 3.0249853 3.023439 3.019425 3.013053 3.0044334 2.9936767 2.9808934 2.9661927 2.9496834 2.931472 2.9116635 2.8903606 2.8676634 2.84367 2.8184745 2.7921693 2.764843 2.7365816 2.707467 2.6775792 2.6469934 2.6157827 2.5840163 2.551761 2.5190794 2.4860315 2.4526744 2.4190617 2.3852446 2.3512712 2.3171868 2.2830343 2.248854 2.2146828 2.1805568 2.1465082 2.1125684 2.0787659 2.045127 2.0116765 1.9784375 1.9454309 1.912676 1.8801906 1.8479912 1.8160926 1.7845082 1.7532504 1.7223301 1.6917572 1.6615405 1.6316878 1.602206 1.5731008 1.5443774 1.5160402 1.4880925 1.4605374 1.433377 1.4066129 1.380246 1.354277 1.3287058 1.3035319 1.2787546 1.2543725 1.2303841 1.2067873 1.1835802 1.1607598 1.1383235 1.1162684 1.0945911 1.0732883 1.0523564 1.0317914 1.0115896 0.9917469 0.97225916 0.95312214 0.9343314 0.9158827 0.89777136 0.879993 0.862543 0.84541667 0.8286094 0.81211656 0.7959334 0.78005534 0.7644776 0.7491955 0.7342045 0.7194997 0.70507663 0.6909306 0.6770571 0.6634515 0.6501093 0.63702595 0.62419707 0.6116182 0.599285 0.58719313 0.57533836 0.56371635 0.55232304 0.54115427 0.5302059 0.51947397 0.5089545 0.49864358 0.48853728 0.47863188 0.46892357 0.4594087 0.45008358 0.44094464 0.43198836 0.42321125 0.4146099 0.40618098 0.39792112 0.38982707 0.3818957 0.37412375 0.36650825 0.35904607 0.35173425 0.3445699 0.33755004 0.3306719 0.32393274 0.31732973 0.31086025 0.30452165 0.29831132 0.29222676 0.28626546 0.28042498 0.2747029 0.2690969 0.26360464 0.25822386 0.2529523 0.24778785 0.24272832 0.2377716 0.23291567 0.22815846 0.22349803 0.21893242 0.2144597 0.21007805 0.20578559 0.20158055 0.19746116 0.1934257 0.18947245 0.18559977 0.18180604 0.17808965 0.17444904 0.17088267 0.16738904 0.16396667 0.16061413 0.15733 0.1541129 0.15096144 0.14787433 0.14485022 0.14188787 0.138986 0.13614339 0.13335884 0.13063115 0.12795918 0.12534179 0.12277788 0.12026635 0.11780613 0.11539619 0.11303549 0.11072304 0.108457856 0.10623897 0.10406543 0.101936325 0.09985075 0.0978078 0.09580663 0.093846366 0.09192619 0.090045266 0.08820281 0.08639803 0.084630154 0.08289844 0.08120213 0.07954052 0.07791289 0.076318555 0.07475682 0.07322704 0.07172855 0.0702607 0.06882289 0.06741449 0.0660349 0.064683534 0.06335981 0.06206317 0.060793057 0.059548926 0.058330253 0.05713651 0.055967193 0.0548218 0.053699844 0.052600842 0.05152433 0.05046984

</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="3.025" PeakHeight="248.893" Num="5" zHalfNm="229.137" Error="1.586">
-48.907 2.376 -2.179 1.118 -0.301
</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="6510.333" A="-1.64983013E11" B="5.0920684E7" C="-3928.9397" Error="0.00156"/>
<QuasiParabolic ID="2" StartDistance="6510.333" EndDistance="6540.667" A="0.0" B="-1523.8087" C="0.274083" Error="0.0277"/>
<QuasiParabolic ID="3" StartDistance="6540.667" EndDistance="6569.0" A="7.0042812E10" B="-2.1488398E7" C="1648.127" Error="0.0277"/>
<QuasiParabolic ID="4" StartDistance="6569.0" EndDistance="6570.0" A="2.0869255E12" B="-6.3554918E8" C="48387.418" Error="6.15E-11"/>
<QuasiParabolic ID="5" StartDistance="6570.0" EndDistance="6578.0" A="6.1433882E12" B="-1.87039334E9" C="142363.38" Error="0.0295"/>
<QuasiParabolic ID="6" StartDistance="6578.0" EndDistance="6585.0" A="7.8031555E12" B="-2.37503514E9" C="180721.69" Error="0.0156"/>
<QuasiParabolic ID="7" StartDistance="6585.0" EndDistance="6602.0" A="1.71041861E13" B="-5.1999498E9" C="395217.84" Error="0.0277"/>
<QuasiParabolic ID="8" StartDistance="6602.0" EndDistance="6618.893" A="-2.38407784E13" B="7.2038569E9" C="-544179.8" Error="0.0111"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="91.0" Depth="0.154"/>
<TopsideChapman PeakHeight="248.893" PeakDensity="113531.33" PeakScaleHeight="15.111" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
