<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-14 -104 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" >
2026.04.14 (104) 06:35:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" 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">
FF202610404140635001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.050" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.663" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.172" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.625" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.625" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.325" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="245.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="245.000" 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="0.025" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.900" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="273.473" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.625" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.625" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="246.312" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="228.943" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.161" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="24.819" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.658" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="13.243" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="23.900" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.430" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="18">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.625 2.65 2.675 2.7 2.725 2.75 2.775 2.8 2.825 2.85 2.875 2.9 2.925 2.95 2.975 3.0 3.025 3.05
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
245.000 245.833 246.667 247.500 250.000 253.000 255.483 258.252 261.360 264.872 268.873 273.473 278.817 285.102 292.599 301.698 312.973 327.310
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 0 0 66 63 0 0 0 0 45 0 0 0 0 0 0 0 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-1.5625 1.5625 -10.9375 -1.5625 -1.5625 -1.5625 -1.5625 1.5625 -1.5625 -1.5625 -1.5625 1.5625 -1.5625 4.6875 -1.5625 1.5625 -1.5625 1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="352">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 141.5 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 204.5 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 246.312 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0
</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 0.35354906 0.3529118 0.35205317 0.35097662 0.34968653 0.34811512 0.3462709 0.3442354 0.34187606 0.33927825 0.33638793 0.33322465 0.32980946 0.32603815 0.32200715 0.31768805 0.31300464 0.30795586 0.3025528 0.29676917 0.29057935 0.28398937 0.27689454 0.26927269 0.26112098 0.25231692 0.24289067 0.23271252 0.2217551 0.20985778 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 0.2 0.2048889 0.20977777 0.21466666 0.21955556 0.22444445 0.22933333 0.23422222 0.23911111 0.244 0.2488889 0.25377777 0.25866666 0.26355556 0.26844445 0.27333334 0.27822223 0.28311113 0.288 0.29288888 0.29777777 0.30266666 0.30755556 0.31244445 0.31733334 0.32222223 0.32711112 0.332 0.33688888 0.34177777 0.34666666 0.35155556 0.354 0.37329358 0.41363654 0.45624775 0.5011089 0.5482958 0.5979111 0.650125 0.70512706 0.76313525 0.82436687 0.88906157 0.9574647 1.0297852 1.1062028 1.1868484 1.2717955 1.360969 1.4541626 1.550956 1.6507993 1.7528528 1.8561518 1.9596226 2.062045 2.162324 2.2594135 2.3523982 2.4405565 2.523358 2.6003904 2.671424 2.736307 2.7949712 2.8474276 2.893694 2.9338388 2.9679344 2.9960341 3.018218 3.0345318 3.0450227 3.0497186 3.05 3.0492048 3.0452905 3.0382543 3.028262 3.0154786 3.0000696 2.9821987 2.9620268 2.9397125 2.9154103 2.889271 2.861441 2.832061 2.8012679 2.7691922 2.73596 2.7016907 2.6664991 2.630494 2.593779 2.5564516 2.5186045 2.4803247 2.4416943 2.4027905 2.3636851 2.324446 2.2851357 2.245813 2.206532 2.1673434 2.1282938 2.089426 2.0507796 2.0123906 1.9742925 1.9365153 1.8990866 1.8620309 1.8253707 1.789126 1.7533149 1.7179528 1.683054 1.6486305 1.6146928 1.5812497 1.548309 1.5158764 1.4839573 1.4525552 1.4216727 1.3913116 1.3614728 1.3321562 1.3033609 1.2750856 1.2473279 1.2200851 1.1933541 1.167131 1.1414117 1.1161914 1.0914652 1.0672281 1.0434742 1.0201977 0.99739295 0.9750533 0.9531725 0.93174404 0.91076124 0.8902173 0.8701054 0.85041857 0.83114994 0.8122925 0.79383916 0.77578294 0.75811684 0.7408339 0.72392696 0.70738924 0.6912137 0.67539364 0.6599221 0.64479244 0.62999785 0.6155318 0.60138774 0.5875592 0.5740398 0.5608232 0.54790324 0.53527373 0.52292866 0.51086205 0.49906814 0.4875411 0.47627524 0.46526504 0.45450497 0.4439897 0.43371388 0.42367238 0.41386005 0.4042719 0.39490303 0.38574862 0.37680393 0.36806434 0.3595253 0.35118234 0.34303114 0.33506736 0.32728684 0.3196855 0.3122593 0.30500424 0.29791656 0.29099244 0.28422818 0.27762017 0.27116483 0.26485878 0.25869855 0.25268087 0.24680246 0.24106017 0.23545088 0.22997154 0.2246192 0.21939093 0.2142839 0.20929533 0.2044225 0.19966276 0.1950135 0.19047217 0.1860363 0.18170348 0.1774713 0.17333744 0.16929966 0.16535573 0.16150346 0.15774079 0.15406558 0.15047586 0.14696963 0.14354496 0.14019996 0.13693279 0.13374166 0.13062479 0.12758045 0.12460698 0.12170272 0.118866086 0.11609549 0.11338941 0.11074634 0.10816482 0.105643414 0.103180744 0.10077543 0.09842614 0.096131586 0.09389048 0.09170158 0.08956368 0.0874756 0.085436165 0.08344425 0.08149876 0.07959859 0.07774271 0.07593008 0.0741597 0.07243057 0.07074175 0.06909229 0.06748127 0.065907806 0.06437101 0.06287005 0.061404068 0.05997226 0.05857383 0.057208005 0.055874016 0.054571126 0.053298607 0.05205576 0.050841887

</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="3.05" PeakHeight="246.312" Num="5" zHalfNm="228.943" Error="1.681">
-42.857 2.073 -1.733 0.858 -0.153
</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="6511.5" A="-1.53036653E11" B="4.7233536E7" C="-3644.4375" Error="0.00157"/>
<QuasiParabolic ID="2" StartDistance="6511.5" EndDistance="6543.0" A="0.0" B="478.08615" C="-0.033397052" Error="0.00822"/>
<QuasiParabolic ID="3" StartDistance="6543.0" EndDistance="6545.0" A="-1.36484146E12" B="4.16998624E8" C="-31851.242" Error="0.0345"/>
<QuasiParabolic ID="4" StartDistance="6545.0" EndDistance="6572.0" A="7.6542116E10" B="-2.3454744E7" C="1796.8365" Error="0.0384"/>
<QuasiParabolic ID="5" StartDistance="6572.0" EndDistance="6573.0" A="-1.69154183E12" B="5.14610976E8" C="-39139.387" Error="0.0"/>
<QuasiParabolic ID="6" StartDistance="6573.0" EndDistance="6586.0" A="8.6076592E12" B="-2.61917901E9" C="199244.16" Error="0.0343"/>
<QuasiParabolic ID="7" StartDistance="6586.0" EndDistance="6591.0" A="2.52915504E13" B="-7.6856509E9" C="583883.7" Error="0.00572"/>
<QuasiParabolic ID="8" StartDistance="6591.0" EndDistance="6602.0" A="1.92545376E13" B="-5.8537549E9" C="444914.2" Error="0.0267"/>
<QuasiParabolic ID="9" StartDistance="6602.0" EndDistance="6616.312" A="-3.17627847E13" B="9.6013568E9" C="-725572.9" Error="0.0107"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="94.5" Depth="0.154"/>
<TopsideChapman PeakHeight="246.312" PeakDensity="115415.63" PeakScaleHeight="13.243" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
