<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-23 -113 07:55:00.000"
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" >
2026.04.23 (113) 07:55:00</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="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202611304230755001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.625" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.912" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="10.270" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.050" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.050" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="2.850" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="205.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="205.000" 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="2.425" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="231.044" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.050" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.050" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="216.810" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="198.659" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.714" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="25.904" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.513" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.040" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="23.540" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.030" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="24">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.05 2.075 2.1 2.125 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 2.575 2.6 2.625
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
205.000 205.000 207.500 208.333 209.167 210.000 212.500 212.500 215.000 215.000 216.250 217.500 220.000 225.000 227.500 231.044 235.108 239.815 245.331 251.882 259.793 269.534 281.824 297.813
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 69 66 0 0 69 69 69 69 54 0 54 60 72 72 69 66 72 66 69 63 63 60 60
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="329">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 132.16667 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 154.33333 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 176.5 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 216.81 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0
</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 0.35376927 0.35314414 0.35199788 0.3504718 0.34844965 0.34601614 0.3430702 0.33964738 0.3357888 0.33131224 0.32640406 0.3208713 0.31475306 0.30806717 0.30063042 0.2924594 0.2835998 0.27378997 0.26306203 0.251229 0.23810448 0.22358955 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.219 0.22306015 0.22915037 0.23524061 0.24133083 0.24742106 0.25351128 0.2596015 0.26569173 0.27178195 0.27787217 0.2839624 0.29005262 0.29614285 0.30223307 0.3083233 0.31441355 0.32050377 0.326594 0.33268422 0.33877444 0.34486467 0.3509549 0.354 0.37106645 0.40806398 0.44835284 0.49134707 0.53665006 0.5840981 0.6336679 0.6855052 0.7398182 0.79691076 0.8571209 0.92085093 0.9884984 1.0605148 1.1372877 1.2191237 1.3061115 1.3980408 1.4941778 1.5932559 1.6934296 1.7925199 1.8883867 1.9792495 2.0639293 2.1417682 2.2125838 2.2764952 2.3338099 2.3848803 2.4301152 2.4698737 2.5045083 2.5343223 2.5595763 2.5804884 2.5972373 2.6099663 2.6187825 2.623757 2.625 2.6249533 2.623191 2.6189678 2.6124015 2.6036124 2.5927198 2.5798426 2.565099 2.5486052 2.5304754 2.510821 2.4897513 2.4673722 2.4437864 2.419093 2.3933876 2.3667622 2.3393052 2.311101 2.2822301 2.2527697 2.2227929 2.1923685 2.161563 2.130438 2.0990527 2.067462 2.035718 2.003869 1.9719615 1.9400375 1.9081371 1.8762974 1.8445526 1.812935 1.7814739 1.7501967 1.7191283 1.6882919 1.6577085 1.6273973 1.5973758 1.5676597 1.5382636 1.5091997 1.48048 1.4521142 1.4241112 1.396479 1.3692242 1.3423523 1.3158681 1.2897756 1.2640778 1.2387769 1.2138747 1.189372 1.1652693 1.1415663 1.1182623 1.0953562 1.0728464 1.0507308 1.0290071 1.0076725 0.98672426 0.96615887 0.94597286 0.9261625 0.9067238 0.88765264 0.86894476 0.8505958 0.832601 0.81495595 0.7976557 0.7806955 0.7640704 0.74777555 0.73180586 0.7161563 0.7008218 0.68579745 0.67107797 0.6566584 0.6425337 0.62869877 0.61514854 0.6018781 0.5888824 0.57615656 0.5636956 0.5514947 0.5395491 0.527854 0.5164046 0.5051964 0.49422467 0.4834849 0.47297254 0.46268323 0.45261258 0.44275627 0.43311006 0.42366976 0.41443124 0.40539047 0.39654344 0.38788623 0.37941498 0.37112588 0.3630152 0.3550793 0.34731457 0.33971742 0.33228442 0.32501215 0.31789723 0.31093642 0.30412644 0.29746416 0.29094645 0.28457028 0.27833265 0.2722306 0.2662613 0.2604219 0.25470966 0.24912184 0.24365583 0.23830898 0.23307876 0.22796267 0.22295828 0.21806316 0.21327499 0.20859143 0.20401026 0.19952928 0.19514629 0.19085921 0.18666594 0.18256447 0.17855279 0.17462897 0.17079112 0.16703734 0.16336583 0.1597748 0.15626247 0.15282717 0.14946721 0.14618094 0.14296678 0.13982312 0.13674845 0.13374126 0.13080007 0.12792346 0.12510999 0.1223583 0.11966704 0.11703488 0.11446054 0.111942746 0.10948026 0.107071884 0.10471641 0.10241271 0.10015962 0.09795606 0.09580092 0.09369316 0.091631725 0.089615606 0.08764381 0.08571536 0.08382931 0.081984736 0.08018072 0.07841637 0.07669082 0.07500322 0.07335273 0.07173854 0.07015986 0.06861589 0.06710589 0.0656291 0.0641848 0.06277227 0.06139081 0.06003974 0.058718394 0.057426117 0.05616227 0.05492623 0.053717386 0.052535135 0.051378902 0.050248105

</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="2.625" PeakHeight="216.81" Num="5" zHalfNm="198.659" Error="1.958">
-42.79 4.623 -3.337 1.573 -0.379
</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="6502.167" A="-2.79250174E11" B="8.6188328E7" C="-6650.2085" Error="0.00132"/>
<QuasiParabolic ID="2" StartDistance="6502.167" EndDistance="6524.333" A="0.0" B="-2122.039" C="0.3743816" Error="0.0244"/>
<QuasiParabolic ID="3" StartDistance="6524.333" EndDistance="6545.0" A="9.8551644E10" B="-3.0303866E7" C="2329.578" Error="0.0247"/>
<QuasiParabolic ID="4" StartDistance="6545.0" EndDistance="6548.0" A="7.4670969E12" B="-2.28196019E9" C="174343.05" Error="0.0348"/>
<QuasiParabolic ID="5" StartDistance="6548.0" EndDistance="6557.0" A="6.9942253E12" B="-2.13752781E9" C="163314.31" Error="0.014"/>
<QuasiParabolic ID="6" StartDistance="6557.0" EndDistance="6569.0" A="2.15255058E13" B="-6.5698232E9" C="501296.25" Error="0.0156"/>
<QuasiParabolic ID="7" StartDistance="6569.0" EndDistance="6586.81" A="-1.96304353E13" B="5.9605289E9" C="-452452.56" Error="0.00363"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="66.5" Depth="0.135"/>
<TopsideChapman PeakHeight="216.81" PeakDensity="85491.625" PeakScaleHeight="14.04" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
