<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-09 -099 02:20:00.000"
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" >
2026.04.09 (099) 02:20:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.97" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202609904090220001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.550" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.608" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="9.200" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.150" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.150" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="2.925" 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="0.200" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.425" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="281.248" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.150" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.150" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="246.968" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="226.525" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.818" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="29.153" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.546" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="15.706" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="27.410" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.690" 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" >
2.15 2.175 2.2 2.225 2.25 2.275 2.3 2.325 2.35 2.375 2.4 2.425 2.45 2.475 2.5 2.525 2.55
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
240.000 242.500 245.000 247.500 250.000 252.500 256.667 260.833 265.000 270.000 275.000 281.248 288.448 296.836 306.732 318.582 333.030
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
78 0 0 54 54 54 0 0 51 63 66 69 66 0 63 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="380">
<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 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 246.968 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0
</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 0.38419098 0.41708988 0.4523856 0.48980185 0.5291206 0.57022524 0.6130766 0.65770483 0.70417774 0.75261456 0.80314684 0.85593677 0.91113806 0.96891683 1.0294234 1.0927653 1.1590053 1.2281241 1.3000108 1.3743777 1.4508319 1.5287377 1.6073551 1.6858177 1.7632085 1.8386511 1.911375 1.9807373 2.046284 2.1077034 2.1648262 2.2176042 2.2660515 2.3102539 2.350297 2.3863213 2.4184597 2.4468286 2.471551 2.4927433 2.5104928 2.5248835 2.535987 2.5438504 2.5485141 2.55 2.549999 2.5489397 2.5459452 2.5410974 2.5344794 2.5261743 2.516265 2.5048337 2.4919622 2.4777312 2.46222 2.4455063 2.4276667 2.408775 2.3889039 2.3681235 2.346502 2.3241055 2.3009973 2.2772388 2.252889 2.2280042 2.2026389 2.176845 2.150672 2.1241672 2.0973754 2.0703397 2.0431006 2.0156968 1.9881645 1.9605384 1.9328508 1.9051325 1.8774123 1.8497174 1.822073 1.794503 1.7670295 1.7396734 1.7124538 1.6853888 1.6584948 1.6317875 1.6052809 1.578988 1.5529208 1.5270903 1.5015064 1.4761784 1.4511143 1.4263214 1.4018065 1.3775754 1.3536332 1.3299844 1.306633 1.2835822 1.2608349 1.2383933 1.2162592 1.1944339 1.1729184 1.1517133 1.1308185 1.1102341 1.0899595 1.0699939 1.0503362 1.0309854 1.0119395 0.9931971 0.97475606 0.9566144 0.9387697 0.92121947 0.9039613 0.8869923 0.8703097 0.85391057 0.83779186 0.8219505 0.80638325 0.7910869 0.77605814 0.7612936 0.74678993 0.7325436 0.7185513 0.7048094 0.6913145 0.67806304 0.6650515 0.65227646 0.63973427 0.62742144 0.6153345 0.60347 0.59182435 0.58039415 0.56917596 0.5581664 0.5473619 0.5367593 0.52635515 0.5161462 0.506129 0.49630055 0.48665747 0.47719663 0.46791485 0.45880908 0.4498762 0.4411132 0.43251708 0.42408487 0.41581368 0.40770063 0.39974284 0.39193758 0.38428202 0.3767735 0.36940932 0.36218685 0.35510346 0.34815666 0.34134385 0.33466262 0.32811052 0.3216851 0.31538406 0.30920509 0.30314583 0.29720408 0.29137763 0.28566432 0.28006202 0.27456862 0.26918203 0.26390028 0.25872135 0.25364327 0.24866417 0.24378213 0.2389953 0.23430185 0.22970001 0.22518802 0.22076416 0.21642673 0.21217407 0.20800455 0.20391658 0.19990857 0.195979 0.19212633 0.18834908 0.18464582 0.18101507 0.17745547 0.1739656 0.17054415 0.16718978 0.16390117 0.16067705 0.15751617 0.15441729 0.15137923 0.14840078 0.1454808 0.14261812 0.13981166 0.1370603 0.13436297 0.13171862 0.1291262 0.12658472 0.124093175 0.12165058 0.11925598 0.11690845 0.11460706 0.1123509 0.1101391 0.10797079 0.1058451 0.10376121 0.10171831 0.09971557 0.09775222 0.0958275 0.09394062 0.092090875 0.09027751 0.088499814 0.0867571 0.085048676 0.08337386 0.081732005 0.080122456 0.07854459 0.076997764 0.075481385 0.07399485 0.07253757 0.07110898 0.06970851 0.0683356 0.06698972 0.065670334 0.06437692 0.06310897 0.06186598 0.060647465 0.059452936 0.05828193 0.057133976 0.056008626 0.054905433 0.053823963 0.05276379 0.05172449 0.050705656

</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="2.55" PeakHeight="246.968" Num="5" zHalfNm="226.525" Error="2.216">
-48.092 3.911 -2.75 1.284 -0.321
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="8" 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="-179.10895" C="0.06753446" Error="0.00376"/>
<QuasiParabolic ID="3" StartDistance="6540.667" EndDistance="6567.0" A="5.0964144E10" B="-1.5668398E7" C="1204.2767" Error="0.00376"/>
<QuasiParabolic ID="4" StartDistance="6567.0" EndDistance="6570.0" A="5.9002408E11" B="-1.79840752E8" C="13704.075" Error="0.00883"/>
<QuasiParabolic ID="5" StartDistance="6570.0" EndDistance="6585.0" A="6.2187189E12" B="-1.89329434E9" C="144103.89" Error="0.0336"/>
<QuasiParabolic ID="6" StartDistance="6585.0" EndDistance="6598.0" A="1.46039636E13" B="-4.4400655E9" C="337480.6" Error="0.0249"/>
<QuasiParabolic ID="7" StartDistance="6598.0" EndDistance="6616.968" A="-1.52840994E13" B="4.6196685E9" C="-349070.94" Error="0.0098"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="91.0" Depth="0.154"/>
<TopsideChapman PeakHeight="246.968" PeakDensity="80676.18" PeakScaleHeight="15.706" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
