<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-02 -122 00:00:00.000"
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" >
2026.05.02 (122) 00:00:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.20" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.98" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="75.82641" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202612205020000001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.700" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.583" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="16.839" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.300" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.300" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="5.075" 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="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="4.550" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="293.179" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.300" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.300" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="253.569" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="232.772" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.924" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="29.842" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.836" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="15.907" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="28.270" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.560" 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" >
3.3 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 4.55 4.575 4.6 4.625 4.65 4.675 4.7
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
240.000 240.000 240.000 240.000 242.500 242.500 242.500 242.500 242.500 243.333 244.167 245.000 245.000 245.625 246.250 246.875 247.500 247.500 250.000 250.000 250.833 251.667 252.500 252.500 255.000 255.000 255.000 255.000 257.500 257.500 258.750 260.000 261.250 262.500 265.000 265.000 265.000 267.500 267.500 270.000 271.250 272.500 272.500 277.500 277.500 280.000 282.500 285.000 287.500 290.000 293.179 296.844 301.116 306.159 312.202 319.576 328.774
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
111 96 96 84 87 84 81 84 81 0 0 81 84 0 0 0 69 78 78 99 0 0 93 105 105 96 96 105 108 96 0 0 0 96 93 96 96 96 96 93 0 96 99 99 99 75 72 72 72 93 93 93 90 99 0 87 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="421">
<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 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 253.569 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0
</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 0.3882681 0.42776787 0.47233278 0.5214322 0.5744486 0.6308054 0.69011 0.75215274 0.81686485 0.88429356 0.9545688 1.0278789 1.1044328 1.1844931 1.2683495 1.356293 1.4486408 1.5456815 1.6477194 1.7549562 1.8676378 1.9857969 2.1094015 2.2382276 2.371804 2.5094297 2.6501508 2.7927482 2.9358735 3.0780568 3.2178879 3.3540092 3.485289 3.6108453 3.7299883 3.8422258 3.9473011 4.0450635 4.135505 4.21866 4.2946625 4.3636374 4.4257507 4.4811563 4.53001 4.572466 4.608654 4.638688 4.6626754 4.6806955 4.6928077 4.6990542 4.7 4.699665 4.6963553 4.689625 4.6796193 4.666486 4.6503716 4.631424 4.6097884 4.58561 4.55903 4.5301895 4.499225 4.466272 4.43146 4.3949175 4.356768 4.317132 4.2761254 4.23386 4.190444 4.1459813 4.1005716 4.0543103 4.00729 3.9595966 3.9113147 3.8625238 3.8132992 3.7637126 3.7138329 3.6637242 3.6134474 3.5630608 3.512618 3.4621708 3.4117672 3.3614526 3.3112688 3.2612557 3.2114503 3.161887 3.112598 3.0636127 3.014959 2.9666622 2.918746 2.8712316 2.8241389 2.777486 2.7312894 2.6855638 2.640323 2.5955782 2.551341 2.5076203 2.4644248 2.4217615 2.3796368 2.3380558 2.2970228 2.2565413 2.2166138 2.1772425 2.1384287 2.1001723 2.062474 2.0253327 1.9887472 1.9527162 1.9172373 1.8823081 1.8479257 1.8140866 1.7807873 1.748024 1.7157922 1.6840878 1.6529057 1.6222413 1.5920894 1.5624447 1.5333017 1.5046549 1.4764987 1.4488271 1.4216344 1.3949146 1.3686615 1.3428692 1.3175313 1.2926419 1.2681947 1.2441833 1.2206016 1.1974432 1.1747022 1.152372 1.1304467 1.1089197 1.0877852 1.067037 1.0466689 1.0266749 1.0070488 0.98778486 0.9688771 0.9503196 0.9321065 0.91423213 0.8966907 0.87947667 0.8625844 0.8460084 0.8297432 0.81378347 0.7981238 0.782759 0.76768386 0.7528933 0.7383823 0.7241458 0.71017903 0.69647706 0.68303514 0.66984856 0.6569128 0.6442232 0.6317754 0.6195649 0.60758734 0.5958385 0.58431417 0.5730102 0.56192255 0.55104715 0.5403802 0.52991766 0.5196558 0.5095909 0.49971926 0.4900373 0.4805414 0.47122815 0.46209404 0.45313573 0.44434994 0.43573338 0.42728284 0.4189952 0.4108674 0.40289637 0.39507917 0.38741288 0.37989458 0.3725215 0.36529088 0.35819998 0.35124615 0.34442675 0.33773926 0.3311811 0.32474986 0.31844306 0.31225833 0.30619332 0.30024576 0.2944134 0.288694 0.2830854 0.27758548 0.27219215 0.26690334 0.26171708 0.25663134 0.25164425 0.24675384 0.24195829 0.23725577 0.23264445 0.22812262 0.22368853 0.21934047 0.2150768 0.2108959 0.20679614 0.20277597 0.19883384 0.19496825 0.19117773 0.18746081 0.18381608 0.18024212 0.17673759 0.17330112 0.1699314 0.16662715 0.16338709 0.16020997 0.15709458 0.15403973 0.15104423 0.14810695 0.14522673 0.1424025 0.13963315 0.13691762 0.13425487 0.13164388 0.12908363 0.12657315 0.124111466 0.12169764 0.119330734 0.11700984 0.11473407 0.11250254 0.11031439 0.10816879 0.1060649 0.10400192 0.10197905 0.09999551 0.09805054 0.09614339 0.09427332 0.092439614 0.09064157 0.08887849 0.087149695 0.085454516 0.0837923 0.08216242 0.08056422 0.07899711 0.07746048 0.07595373 0.07447629 0.07302757 0.07160704 0.07021413 0.06884831 0.06750906 0.06619585 0.06490819 0.06364557 0.06240751 0.061193526 0.060003158 0.05883594 0.057691425 0.056569174 0.05546875 0.054389726 0.053331695 0.052294243 0.05127697 0.050279483

</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="4.7" PeakHeight="253.569" Num="5" zHalfNm="232.772" Error="1.229">
-55.086 4.293 -2.884 1.684 -0.576
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="10" 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="-623.0205" C="0.13572015" Error="0.0117"/>
<QuasiParabolic ID="3" StartDistance="6540.667" EndDistance="6570.0" A="5.7261937E10" B="-1.7589678E7" C="1350.8085" Error="0.0117"/>
<QuasiParabolic ID="4" StartDistance="6570.0" EndDistance="6574.0" A="9.8795897E12" B="-3.0076439E9" C="228904.39" Error="0.0133"/>
<QuasiParabolic ID="5" StartDistance="6574.0" EndDistance="6581.0" A="9.1905401E12" B="-2.79801498E9" C="212960.61" Error="0.0159"/>
<QuasiParabolic ID="6" StartDistance="6581.0" EndDistance="6588.0" A="1.94860821E13" B="-5.9268838E9" C="450680.47" Error="0.00413"/>
<QuasiParabolic ID="7" StartDistance="6588.0" EndDistance="6600.0" A="4.5285502E13" B="-1.37591306E10" C="1045113.25" Error="0.0143"/>
<QuasiParabolic ID="8" StartDistance="6600.0" EndDistance="6607.0" A="8.7826891E12" B="-2.69767168E9" C="207123.98" Error="0.00895"/>
<QuasiParabolic ID="9" StartDistance="6607.0" EndDistance="6623.569" A="-5.1596289E13" B="1.55796029E10" C="-1176051.0" Error="0.00468"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="91.0" Depth="0.154"/>
<TopsideChapman PeakHeight="253.569" PeakDensity="274069.47" PeakScaleHeight="15.907" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
