<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-30 -120 07:00:00.000"
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" >
2026.04.30 (120) 07:00:00</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="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202612004300700001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.000" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.732" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="14.928" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.025" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.025" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.325" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="237.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="237.500" 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="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.875" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="272.635" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.025" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.025" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="242.281" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="225.813" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.995" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="23.688" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.061" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="12.486" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="23.340" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.190" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="40">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 3.75 3.775 3.8 3.825 3.85 3.875 3.9 3.925 3.95 3.975 4.0
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
237.500 237.500 237.500 240.000 240.000 240.000 240.000 240.000 242.500 242.500 242.500 242.500 245.000 245.000 245.000 247.500 247.500 247.500 250.000 250.000 250.000 250.000 255.000 255.000 255.000 257.500 257.500 260.000 260.000 261.367 262.940 264.770 266.925 269.501 272.635 276.528 281.495 288.053 297.111 310.434
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
93 96 99 93 87 87 96 96 96 96 96 93 93 96 99 99 87 87 84 84 72 72 81 84 84 81 81 84 66 66 63 63 90 93 93 90 87 87 81 81
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="349">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 139.75 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 169.5 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 199.25 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 242.281 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0
</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 0.352762 0.35182965 0.3506064 0.3491724 0.34738788 0.34533682 0.34299496 0.34037665 0.33746356 0.3342082 0.33063674 0.3267138 0.32253745 0.31796023 0.31297803 0.30765462 0.30189866 0.29567927 0.28909197 0.28191414 0.2741947 0.26597098 0.25704813 0.24743798 0.23701459 0.22570056 0.21345264 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 0.20258823 0.2077647 0.21294117 0.21811765 0.22329412 0.2284706 0.23364706 0.23882353 0.244 0.24917647 0.25435293 0.2595294 0.2647059 0.26988235 0.27505884 0.2802353 0.28541178 0.29058823 0.2957647 0.30094117 0.30611765 0.3112941 0.3164706 0.32164705 0.32682353 0.332 0.33717647 0.34235293 0.3475294 0.3527059 0.354 0.38281122 0.4257038 0.4736303 0.5263758 0.58365244 0.6452302 0.7109322 0.7806799 0.8544625 0.9323138 1.0143352 1.1006213 1.1912932 1.2864368 1.3861418 1.4904392 1.5993057 1.7126076 1.8301255 1.9515054 2.0762856 2.2038267 2.3333817 2.463993 2.594728 2.7244782 2.852155 2.9766846 3.0970104 3.212199 3.3214207 3.423949 3.5191429 3.6065447 3.685745 3.7564254 3.8183672 3.8713915 3.9153888 3.9502578 3.9759426 3.9924102 3.999635 4.0 3.9987204 3.9928102 3.982328 3.9675314 3.9486804 3.9260325 3.8998425 3.870361 3.8378332 3.8024979 3.7645867 3.7243235 3.6819239 3.6375945 3.5915334 3.5439296 3.494962 3.4448013 3.3936083 3.3415353 3.2887254 3.2353125 3.1814225 3.1271734 3.0726745 3.0180278 2.9633281 2.9086628 2.8541129 2.7997525 2.7456503 2.6918683 2.6384642 2.5854897 2.532992 2.481013 2.4295914 2.378761 2.3285527 2.2789927 2.230105 2.1819096 2.1344244 2.0876644 2.041642 1.9963673 1.9518487 1.9080921 1.865102 1.8228812 1.7814307 1.7407506 1.7008394 1.6616944 1.6233121 1.585688 1.5488167 1.5126917 1.4773065 1.4426533 1.4087242 1.3755105 1.3430032 1.3111931 1.2800703 1.2496248 1.2198467 1.1907252 1.1622498 1.1344097 1.1071942 1.0805924 1.0545932 1.0291858 1.004359 0.9801019 0.9564036 0.93325317 0.9106398 0.8885528 0.8669813 0.8459149 0.8253431 0.8052555 0.7856419 0.7664922 0.7477965 0.7295448 0.71172756 0.6943352 0.6773584 0.66078776 0.6446144 0.62882924 0.6134236 0.5983888 0.58371645 0.5693982 0.555426 0.5417918 0.52848774 0.5155062 0.5028397 0.4904808 0.47842234 0.46665725 0.4551786 0.44397962 0.43305373 0.4223944 0.41199532 0.40185028 0.39195326 0.38229826 0.3728795 0.36369136 0.35472825 0.3459848 0.3374557 0.32913575 0.32101992 0.3131033 0.30538103 0.2978484 0.29050085 0.28333387 0.27634305 0.26952416 0.26287293 0.25638536 0.2500574 0.2438852 0.23786494 0.23199292 0.22626549 0.22067913 0.2152304 0.20991592 0.20473242 0.19967666 0.19474553 0.18993597 0.18524499 0.1806697 0.17620723 0.17185484 0.16760981 0.16346951 0.15943135 0.15549284 0.15165152 0.14790499 0.14425093 0.14068706 0.13721117 0.13382107 0.13051468 0.1272899 0.124144755 0.12107727 0.11808552 0.11516765 0.11232184 0.10954631 0.10683933 0.1041992 0.10162428 0.099112965 0.09666368 0.0942749 0.09194513 0.08967291 0.087456815 0.085295476 0.08318753 0.08113167 0.07912659 0.07717106 0.075263835 0.07340374 0.071589604 0.0698203 0.06809471 0.06641175 0.064770386 0.063169576 0.061608326 0.060085654 0.05860061 0.057152264 0.05573971 0.054362062 0.05301846 0.05170806 0.050430045

</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="4.0" PeakHeight="242.281" Num="5" zHalfNm="225.813" Error="0.675">
-43.432 0.895 -0.783 0.484 -0.195
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="9" 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="6509.75" A="-1.71482022E11" B="5.2926548E7" C="-4083.7134" Error="0.00152"/>
<QuasiParabolic ID="2" StartDistance="6509.75" EndDistance="6539.5" A="0.0" B="-3632.1533" C="0.59797883" Error="0.064"/>
<QuasiParabolic ID="3" StartDistance="6539.5" EndDistance="6559.0" A="1.47329729E11" B="-4.5096316E7" C="3450.9355" Error="0.064"/>
<QuasiParabolic ID="4" StartDistance="6559.0" EndDistance="6567.0" A="-3.47159855E11" B="1.05685688E8" C="-8043.3477" Error="0.0411"/>
<QuasiParabolic ID="5" StartDistance="6567.0" EndDistance="6577.0" A="9.0828502E12" B="-2.76625254E9" C="210621.06" Error="0.072"/>
<QuasiParabolic ID="6" StartDistance="6577.0" EndDistance="6589.0" A="2.73119424E13" B="-8.3095378E9" C="632035.44" Error="0.0461"/>
<QuasiParabolic ID="7" StartDistance="6589.0" EndDistance="6600.0" A="3.32591719E13" B="-1.01147372E10" C="769021.3" Error="0.0336"/>
<QuasiParabolic ID="8" StartDistance="6600.0" EndDistance="6612.281" A="-6.4319362E13" B="1.94545152E10" C="-1471073.6" Error="0.0114"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="89.25" Depth="0.154"/>
<TopsideChapman PeakHeight="242.281" PeakDensity="198511.17" PeakScaleHeight="12.486" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
