<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-14 -104 05:40:00.000"
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) 05:40:00</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">
FF202610404140540001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.825" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.602" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="10.175" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.425" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.425" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.100" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="245.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="245.000" 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="265.221" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.425" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.425" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="253.052" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="231.173" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.363" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="31.242" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.715" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="16.972" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="28.030" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.190" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="17">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
245.000 247.500 250.000 252.370 255.019 257.996 261.369 265.221 269.663 274.840 280.953 288.280 297.222 308.381 322.695 341.724 368.259
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 66 69 69 69 0 0 66 66 0 0 0 0 66 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="410">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 141.5 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 204.5 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 253.052 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0
</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 0.35354906 0.3529118 0.35205317 0.35097662 0.34968653 0.34811512 0.3462709 0.3442354 0.34187606 0.33927825 0.33638793 0.33322465 0.32980946 0.32603815 0.32200715 0.31768805 0.31300464 0.30795586 0.3025528 0.29676917 0.29057935 0.28398937 0.27689454 0.26927269 0.26112098 0.25231692 0.24289067 0.23271252 0.2217551 0.20985778 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 0.2048889 0.20977777 0.21466666 0.21955556 0.22444445 0.22933333 0.23422222 0.23911111 0.244 0.2488889 0.25377777 0.25866666 0.26355556 0.26844445 0.27333334 0.27822223 0.28311113 0.288 0.29288888 0.29777777 0.30266666 0.30755556 0.31244445 0.31733334 0.32222223 0.32711112 0.332 0.33688888 0.34177777 0.34666666 0.35155556 0.354 0.3688037 0.40114772 0.43669036 0.47480032 0.5149111 0.5566373 0.5997817 0.6443041 0.69027317 0.73780584 0.78709865 0.8383758 0.89187914 0.9479088 1.006754 1.0687624 1.134257 1.203578 1.2770091 1.3547323 1.4367976 1.5229884 1.6127281 1.7050138 1.7984598 1.8914399 1.9822233 2.069361 2.151709 2.2286174 2.2997708 2.365128 2.4248574 2.4792042 2.5284965 2.5730336 2.6131415 2.6490958 2.6811597 2.7095609 2.7344925 2.7561333 2.774632 2.7901046 2.8026578 2.8123724 2.8193066 2.8235059 2.824994 2.825 2.8241494 2.8214533 2.816981 2.8108056 2.8029995 2.7936356 2.7827868 2.7705252 2.756922 2.7420478 2.7259722 2.708763 2.6904871 2.6712098 2.6509948 2.6299043 2.6079981 2.585335 2.5619717 2.537963 2.5133612 2.4882178 2.4625814 2.4364996 2.4100173 2.3831778 2.3560226 2.3285916 2.3009222 2.2730508 2.2450116 2.2168372 2.1885588 2.1602056 2.1318057 2.1033852 2.074969 2.0465808 2.0182426 1.9899753 1.9617982 1.9337299 1.9057872 1.8779866 1.8503426 1.8228694 1.7955799 1.7684861 1.7415991 1.7149291 1.6884855 1.662277 1.6363115 1.6105961 1.5851375 1.5599413 1.5350131 1.5103575 1.4859785 1.46188 1.438065 1.4145364 1.3912963 1.3683467 1.345689 1.3233244 1.3012537 1.2794774 1.2579956 1.2368083 1.2159151 1.1953152 1.1750083 1.1549928 1.1352677 1.1158317 1.096683 1.07782 1.0592407 1.040943 1.022925 1.0051843 0.9877184 0.970525 0.95360154 0.9369454 0.92055374 0.90442395 0.8885531 0.8729384 0.85757697 0.84246576 0.8276018 0.81298214 0.7986037 0.7844634 0.7705583 0.7568852 0.743441 0.73022264 0.71722704 0.7044512 0.69189185 0.67954606 0.66741073 0.65548277 0.64375913 0.6322369 0.62091297 0.6097843 0.5988481 0.58810127 0.577541 0.56716436 0.55696845 0.5469504 0.5371075 0.5274369 0.5179359 0.50860167 0.49943158 0.49042296 0.4815732 0.47287965 0.46433976 0.455951 0.44771084 0.43961683 0.43166652 0.42385748 0.41618738 0.40865383 0.40125453 0.3939872 0.38684964 0.37983957 0.37295485 0.3661933 0.3595528 0.3530313 0.34662676 0.3403371 0.33416033 0.32809454 0.32213774 0.31628808 0.31054366 0.30490264 0.29936326 0.29392365 0.2885821 0.28333688 0.27818632 0.2731287 0.2681624 0.26328582 0.25849736 0.25379547 0.24917859 0.24464521 0.24019387 0.2358231 0.23153144 0.22731751 0.22317992 0.2191173 0.2151283 0.21121162 0.20736596 0.20359005 0.19988263 0.19624247 0.19266838 0.18915915 0.18571365 0.1823307 0.17900918 0.175748 0.17254607 0.16940232 0.16631569 0.16328517 0.16030972 0.15738837 0.15452014 0.15170406 0.1489392 0.14622463 0.14355944 0.14094274 0.13837364 0.1358513 0.13337485 0.13094348 0.12855636 0.12621269 0.12391168 0.121652566 0.11943459 0.11725699 0.115119055 0.11302005 0.11095927 0.10893603 0.106949635 0.10499942 0.103084736 0.10120494 0.099359386 0.09754745 0.09576853 0.094022036 0.09230736 0.09062393 0.088971175 0.08734854 0.08575548 0.084191464 0.082655944 0.081148416 0.079668365 0.07821529 0.07678871 0.075388126 0.074013084 0.072663106 0.07133774 0.07003654 0.068759054 0.06750487 0.06627355 0.065064676 0.06387785 0.06271266 0.061568722 0.06044564 0.05934304 0.058260545 0.057197787 0.056154415 0.055130064 0.0541244 0.05313707 0.05216775 0.05121611 0.050281823

</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="2.825" PeakHeight="253.052" Num="5" zHalfNm="231.173" Error="2.619">
-52.186 6.445 -4.467 2.252 -0.596
</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="6511.5" A="-1.53036653E11" B="4.7233536E7" C="-3644.4375" Error="0.00157"/>
<QuasiParabolic ID="2" StartDistance="6511.5" EndDistance="6543.0" A="0.0" B="213.31303" C="0.0072653308" Error="0.00332"/>
<QuasiParabolic ID="3" StartDistance="6543.0" EndDistance="6573.0" A="3.7547528E10" B="-1.1563601E7" C="890.3075" Error="0.0134"/>
<QuasiParabolic ID="4" StartDistance="6573.0" EndDistance="6579.0" A="6.5833685E12" B="-2.0032937E9" C="152398.75" Error="0.0216"/>
<QuasiParabolic ID="5" StartDistance="6579.0" EndDistance="6582.0" A="3.21741442E12" B="-9.8005184E8" C="74633.0" Error="0.00657"/>
<QuasiParabolic ID="6" StartDistance="6582.0" EndDistance="6588.0" A="7.4117688E12" B="-2.25454413E9" C="171449.5" Error="0.00341"/>
<QuasiParabolic ID="7" StartDistance="6588.0" EndDistance="6601.0" A="1.92774448E13" B="-5.8567532E9" C="444841.2" Error="0.0226"/>
<QuasiParabolic ID="8" StartDistance="6601.0" EndDistance="6623.052" A="-1.58484513E13" B="4.7858452E9" C="-361294.12" Error="0.00734"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="94.5" Depth="0.154"/>
<TopsideChapman PeakHeight="253.052" PeakDensity="99015.195" PeakScaleHeight="16.972" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
