<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-03-31 -090 06:35:00.000"
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" >
2026.03.31 (090) 06:35:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.18" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.97" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="82.25368" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202609003310635001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.525" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.682" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="16.662" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.125" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.125" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.875" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="227.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="227.500" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="4.325" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="273.388" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.125" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.125" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="243.831" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="221.584" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.354" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="31.728" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.816" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="17.162" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="28.230" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.280" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="57">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
3.125 3.15 3.175 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 4.4 4.425 4.45 4.475 4.5 4.525
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
227.500 227.500 227.500 228.125 228.750 229.375 230.000 230.000 230.000 232.500 232.500 232.500 232.500 232.500 235.000 235.000 235.000 235.000 237.500 237.500 237.500 237.500 240.000 240.000 240.000 240.000 241.250 242.500 242.500 243.750 245.000 245.000 247.500 247.500 250.000 250.000 252.500 252.500 253.750 255.000 257.500 260.000 260.000 262.500 265.000 267.500 267.500 270.237 273.388 277.053 281.370 286.529 292.804 300.601 310.549 323.683 341.821
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
96 0 93 0 0 0 93 93 66 66 105 108 96 93 96 96 87 84 84 84 87 84 84 84 72 69 0 69 90 0 90 87 99 99 87 90 90 90 0 102 102 99 102 105 90 90 90 90 0 90 90 87 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 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 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="430">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 137.41667 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 164.83333 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 192.25 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 243.831 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0
</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 0.353812 0.35339895 0.35261247 0.35145745 0.35001534 0.348294 0.34623033 0.34376696 0.34099412 0.3378617 0.33439493 0.33055604 0.32631677 0.32166007 0.316581 0.31108782 0.3051483 0.29865354 0.2916688 0.28410435 0.27593207 0.26707086 0.25740978 0.24700987 0.23557876 0.22317484 0.20959583 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 0.20093617 0.20655319 0.21217021 0.21778724 0.22340426 0.22902128 0.2346383 0.24025533 0.24587233 0.25148937 0.2571064 0.26272342 0.26834044 0.27395746 0.27957445 0.28519148 0.2908085 0.29642552 0.30204254 0.30765957 0.3132766 0.3188936 0.32451063 0.33012766 0.33574468 0.3413617 0.34697872 0.35259575 0.354 0.37786266 0.41494492 0.4581787 0.5070313 0.56053907 0.6177048 0.6777875 0.7404391 0.80554974 0.87322927 0.9437032 1.0172844 1.0943984 1.1754705 1.2610282 1.3516719 1.4479816 1.5506647 1.6603596 1.7777673 1.9033788 2.0374682 2.1799197 2.3299046 2.4858215 2.6452878 2.805248 2.9625387 3.1143599 3.258575 3.393844 3.5195317 3.6355035 3.7420216 3.8394997 3.9284716 4.0094457 4.082984 4.1495533 4.2096148 4.2635427 4.311704 4.354392 4.391879 4.4243913 4.4521165 4.475213 4.493813 4.508021 4.5179114 4.523542 4.525 4.524957 4.522979 4.5181293 4.5105195 4.5002627 4.4874716 4.472259 4.4547377 4.4350185 4.413213 4.389429 4.363775 4.336355 4.3072734 4.276631 4.2445254 4.2110534 4.176308 4.14038 4.103356 4.065322 4.0263586 3.986546 3.9459596 3.9046724 3.8627546 3.8202736 3.7772937 3.7338767 3.6900811 3.6459634 3.601577 3.5569727 3.512199 3.4673016 3.4223242 3.3773077 3.3322914 3.287312 3.242404 3.1976001 3.1529312 3.1084259 3.0641112 3.0200126 2.9761534 2.9325557 2.88924 2.8462255 2.8035295 2.7611682 2.7191572 2.6775098 2.6362386 2.5953555 2.5548706 2.5147934 2.475133 2.4358964 2.3970907 2.3587217 2.320795 2.2833147 2.2462852 2.2097092 2.1735892 2.1379278 2.1027262 2.0679853 2.0337057 1.9998877 1.9665306 1.9336339 1.9011965 1.8692168 1.8376932 1.8066238 1.7760061 1.7458377 1.7161156 1.6868368 1.6579984 1.6295967 1.6016283 1.5740894 1.5469761 1.5202845 1.4940104 1.4681498 1.4426982 1.4176513 1.3930045 1.3687536 1.3448936 1.3214201 1.2983284 1.2756139 1.2532716 1.231297 1.2096852 1.1884315 1.1675309 1.1469789 1.1267705 1.106901 1.0873657 1.0681598 1.0492786 1.0307174 1.0124713 0.99453586 0.9769065 0.95957845 0.94254726 0.9258084 0.9093574 0.8931898 0.87730116 0.8616871 0.8463434 0.8312657 0.8164498 0.80189157 0.7875868 0.77353144 0.7597214 0.74615276 0.7328215 0.7197238 0.70685583 0.6942137 0.68179375 0.66959226 0.6576056 0.64583015 0.6342624 0.6228988 0.611736 0.6007705 0.589999 0.57941824 0.5690249 0.5588159 0.54878795 0.53893805 0.529263 0.51976 0.5104259 0.50125796 0.49225312 0.48340866 0.47472182 0.4661898 0.45780993 0.44957957 0.4414961 0.43355697 0.42575964 0.41810164 0.41058052 0.4031939 0.39593938 0.38881466 0.38181746 0.37494552 0.36819667 0.3615687 0.35505947 0.3486669 0.34238896 0.33622354 0.33016872 0.32422253 0.318383 0.3126483 0.3070165 0.30148584 0.29605445 0.29072064 0.28548262 0.2803387 0.2752872 0.27032652 0.26545498 0.260671 0.255973 0.25135952 0.246829 0.24237995 0.23801093 0.23372051 0.22950728 0.22536986 0.22130688 0.21731703 0.213399 0.20955147 0.20577322 0.202063 0.19841956 0.19484173 0.19132833 0.1878782 0.18449022 0.18116325 0.1778962 0.17468801 0.17153761 0.16844398 0.16540606 0.1624229 0.15949349 0.15661685 0.15379207 0.15101819 0.14829428 0.14561948 0.1429929 0.14041364 0.13788089 0.13539378 0.13295151 0.13055328 0.12819827 0.12588571 0.123614855 0.12138494 0.11919522 0.11704499 0.114933535 0.11286015 0.110824145 0.10882486 0.10686162 0.10493379 0.103040725 0.1011818 0.0993564 0.097563915 0.09580376 0.094075345 0.09237811 0.09071148 0.08907492 0.087467864 0.0858898 0.0843402 0.08281855 0.08132435 0.079857096 0.07841631 0.07700151 0.07561224 0.07424802 0.07290842 0.07159298 0.070301265 0.069032855 0.06778733 0.06656427 0.06536327 0.06418394 0.063025884 0.06188872 0.060772073 0.059675567 0.058598846 0.05754155 0.056503326 0.055483833 0.054482736 0.053499695 0.052534394 0.051586505 0.05065572

</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="4.525" PeakHeight="243.831" Num="5" zHalfNm="221.584" Error="1.493">
-56.504 8.414 -5.365 2.748 -0.874
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="11" 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="6507.417" A="-2.01785164E11" B="6.2279372E7" C="-4805.382" Error="0.00146"/>
<QuasiParabolic ID="2" StartDistance="6507.417" EndDistance="6534.833" A="0.0" B="-1481.5111" C="0.2676785" Error="0.0242"/>
<QuasiParabolic ID="3" StartDistance="6534.833" EndDistance="6559.0" A="8.6165037E10" B="-2.6449684E7" C="2029.8075" Error="0.0242"/>
<QuasiParabolic ID="4" StartDistance="6559.0" EndDistance="6561.0" A="-5.49261607E11" B="1.67307488E8" C="-12740.521" Error="9.05E-5"/>
<QuasiParabolic ID="5" StartDistance="6561.0" EndDistance="6563.0" A="8.5579944E12" B="-2.60887168E9" C="198826.27" Error="0.0234"/>
<QuasiParabolic ID="6" StartDistance="6563.0" EndDistance="6568.0" A="9.7335504E12" B="-2.96710912E9" C="226118.45" Error="0.0109"/>
<QuasiParabolic ID="7" StartDistance="6568.0" EndDistance="6570.0" A="7.0131185E12" B="-2.13871949E9" C="163055.9" Error="7.89E-4"/>
<QuasiParabolic ID="8" StartDistance="6570.0" EndDistance="6580.0" A="1.86212711E13" B="-5.6724035E9" C="431981.62" Error="0.0393"/>
<QuasiParabolic ID="9" StartDistance="6580.0" EndDistance="6590.0" A="6.5700756E13" B="-1.99822766E10" C="1519358.0" Error="0.00885"/>
<QuasiParabolic ID="10" StartDistance="6590.0" EndDistance="6613.831" A="-3.9089672E13" B="1.18205839E10" C="-893605.6" Error="0.00717"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="82.25" Depth="0.154"/>
<TopsideChapman PeakHeight="243.831" PeakDensity="254040.02" PeakScaleHeight="17.162" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
