<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-11 -131 01:05:00.000"
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" >
2026.05.11 (131) 01:05:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.21" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.99" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="75.82641" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202613105110105001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.725" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.572" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.306" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.925" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.925" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.150" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.525" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="283.381" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.925" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.925" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="254.982" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="232.498" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.564" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="32.142" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.253" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="17.236" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="29.920" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.780" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="33">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.925 2.95 2.975 3.0 3.025 3.05 3.075 3.1 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
240.000 240.000 242.500 242.500 245.000 245.000 247.500 247.500 250.000 250.000 252.500 252.500 255.000 257.500 257.500 257.500 262.500 265.000 265.000 267.500 272.500 275.000 277.500 280.000 283.381 287.367 292.138 297.950 305.186 314.442 326.701 343.707 368.880
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
54 63 66 69 78 81 90 96 93 96 93 96 108 105 108 108 105 105 99 96 102 105 96 96 96 96 96 93 90 87 72 72 66
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="431">
<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 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 254.982 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0
</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 0.38751787 0.4235416 0.46173942 0.5018791 0.543812 0.58748686 0.6329079 0.6801603 0.72932714 0.78055704 0.8340221 0.889902 0.94838977 1.009717 1.0741229 1.141845 1.2131284 1.2882324 1.3673745 1.4507455 1.5384731 1.6306071 1.72704 1.8275386 1.9316245 2.0386481 2.1477246 2.2577724 2.3676534 2.4762228 2.582339 2.6850872 2.7836897 2.8775969 2.9664023 3.0499065 3.1279993 3.2006931 3.2680476 3.3301728 3.3872015 3.439292 3.4865844 3.5292356 3.5673752 3.6011436 3.6306562 3.6560102 3.677304 3.6946137 3.707993 3.7174983 3.7231603 3.725 3.7249997 3.7237468 3.7201362 3.7142584 3.7062051 3.696068 3.6839387 3.669909 3.6540692 3.6365097 3.617319 3.5965848 3.574393 3.5508277 3.5259714 3.4999049 3.472706 3.4444513 3.4152148 3.3850682 3.3540812 3.3223202 3.2898507 3.2567346 3.2230318 3.1888 3.154095 3.1189687 3.0834727 3.047655 3.0115619 2.9752376 2.9387236 2.9020603 2.8652854 2.8284347 2.7915423 2.7546403 2.7177596 2.6809282 2.6441739 2.6075213 2.570995 2.5346172 2.4984086 2.4623892 2.4265773 2.39099 2.3556428 2.3205507 2.2857273 2.2511852 2.2169359 2.1829898 2.1493568 2.116046 2.083065 2.0504212 2.0181212 1.9861706 1.9545747 1.9233378 1.8924642 1.8619568 1.8318187 1.8020521 1.7726588 1.7436404 1.7149979 1.6867316 1.6588418 1.6313286 1.6041914 1.5774295 1.5510418 1.525027 1.4993837 1.47411 1.4492038 1.4246633 1.4004858 1.3766689 1.3532099 1.3301059 1.3073541 1.2849512 1.2628943 1.2411798 1.2198046 1.198765 1.1780577 1.157679 1.1376252 1.1178926 1.0984776 1.0793762 1.0605849 1.0420995 1.0239164 1.0060316 0.98844135 0.97114164 0.95412856 0.9373984 0.920947 0.90477073 0.8888656 0.8732278 0.8578534 0.84273875 0.8278799 0.8132732 0.79891473 0.78480095 0.7709281 0.7572925 0.7438905 0.73071855 0.717773 0.70505047 0.69254726 0.6802601 0.6681855 0.65632 0.6446603 0.6332031 0.62194514 0.6108832 0.60001403 0.5893345 0.57884157 0.56853205 0.558403 0.5484514 0.53867435 0.5290689 0.5196321 0.51036125 0.50125355 0.49230614 0.48351642 0.47488168 0.46639928 0.45806667 0.44988126 0.44184056 0.43394208 0.4261834 0.4185621 0.41107583 0.4037223 0.39649913 0.38940412 0.38243508 0.3755898 0.36886612 0.36226195 0.3557752 0.34940383 0.34314585 0.33699924 0.33096206 0.32503244 0.31920844 0.31348825 0.30787003 0.302352 0.29693243 0.29160953 0.2863816 0.28124702 0.2762041 0.27125126 0.26638687 0.2616094 0.25691733 0.25230908 0.24778323 0.2433383 0.23897287 0.23468551 0.23047484 0.22633953 0.22227821 0.21828957 0.21437232 0.21052521 0.20674697 0.2030364 0.19939226 0.1958134 0.19229865 0.18884687 0.18545693 0.18212773 0.17885819 0.17564726 0.17249386 0.169397 0.16635565 0.16336882 0.16043556 0.15755488 0.15472586 0.15194757 0.14921911 0.1465396 0.14390813 0.14132388 0.13878599 0.13629362 0.13384596 0.13144222 0.12908162 0.12676337 0.12448672 0.12225093 0.12005526 0.11789899 0.11578143 0.11370187 0.11165964 0.10965406 0.107684486 0.10575027 0.103850774 0.10198537 0.10015347 0.09835445 0.096587725 0.09485272 0.09314887 0.09147562 0.0898324 0.0882187 0.086633965 0.08507769 0.08354936 0.082048476 0.08057454 0.07912708 0.07770561 0.076309666 0.0749388 0.07359254 0.07227047 0.070972145 0.069697134 0.06844502 0.0672154 0.06600786 0.06482201 0.06365746 0.06251383 0.06139074 0.060287822 0.059204716 0.058141064 0.05709652 0.056070734 0.055063378 0.054074116 0.053102624 0.05214858 0.05121168 0.050291605

</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="3.725" PeakHeight="254.982" Num="5" zHalfNm="232.498" Error="2.003">
-56.814 5.033 -3.653 1.874 -0.422
</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="-2545.0593" C="0.43094912" Error="0.0459"/>
<QuasiParabolic ID="3" StartDistance="6540.667" EndDistance="6543.0" A="4.7969888E12" B="-1.46649062E9" C="112080.5" Error="0.0"/>
<QuasiParabolic ID="4" StartDistance="6543.0" EndDistance="6568.0" A="-1.28017261E11" B="3.8936836E7" C="-2960.5774" Error="0.15"/>
<QuasiParabolic ID="5" StartDistance="6568.0" EndDistance="6585.0" A="5.8236973E12" B="-1.77340006E9" C="135006.61" Error="0.079"/>
<QuasiParabolic ID="6" StartDistance="6585.0" EndDistance="6604.0" A="2.42785882E13" B="-7.3785303E9" C="560604.94" Error="0.0187"/>
<QuasiParabolic ID="7" StartDistance="6604.0" EndDistance="6624.982" A="-2.69390143E13" B="8.1325542E9" C="-613765.5" Error="0.00891"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="91.0" Depth="0.154"/>
<TopsideChapman PeakHeight="254.982" PeakDensity="172154.16" PeakScaleHeight="17.236" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
