<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-14 -104 06:10:00.000"
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) 06:10:00</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">
FF202610404140610001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.875" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.738" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="10.746" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.350" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.350" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.200" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="242.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="242.500" 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="2.775" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="271.223" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.350" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.350" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="242.373" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="225.965" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.285" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="23.451" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.555" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="12.451" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="23.370" 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="22">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.35 2.375 2.4 2.425 2.45 2.475 2.5 2.525 2.55 2.575 2.6 2.625 2.65 2.675 2.7 2.725 2.75 2.775 2.8 2.825 2.85 2.875
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
242.500 242.500 242.500 245.000 245.000 247.500 250.000 250.000 252.500 252.500 254.167 255.833 257.500 260.000 262.500 265.000 267.500 271.223 275.810 281.601 289.142 299.365
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
60 72 69 84 84 0 72 75 72 72 0 0 69 69 66 69 72 57 60 48 45 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 4.6875 1.5625 1.5625 1.5625 -1.5625 -1.5625 4.6875 1.5625 -1.5625 -1.5625 -1.5625 1.5625 -1.5625 1.5625 1.5625 1.5625 -4.6875
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="335">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 140.91667 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 171.83333 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 202.75 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 242.373 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0
</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 0.3529119 0.3519786 0.3509026 0.34953943 0.34789655 0.34598285 0.3438088 0.34138623 0.3386593 0.33571413 0.33243394 0.32884502 0.3249759 0.3207348 0.3162249 0.311316 0.3060709 0.30039963 0.29436976 0.2878726 0.28096467 0.27349284 0.26549044 0.25688842 0.24761072 0.23761433 0.22685163 0.21513027 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 0.20083019 0.20581132 0.21079245 0.21577358 0.22075471 0.22573584 0.23071699 0.23569812 0.24067925 0.24566038 0.2506415 0.25562266 0.2606038 0.26558492 0.27056605 0.27554718 0.2805283 0.28550944 0.29049057 0.2954717 0.30045283 0.30543396 0.3104151 0.31539622 0.32037735 0.32535848 0.3303396 0.33532074 0.3403019 0.34528303 0.35026416 0.354 0.3633476 0.4035311 0.44787997 0.4959698 0.5474085 0.60190815 0.6592939 0.71949077 0.782476 0.8483064 0.9170215 0.98868 1.0633286 1.1409942 1.2216407 1.3051715 1.3914287 1.4801451 1.5709417 1.6633695 1.756808 1.8505992 1.9439795 2.0361638 2.1263115 2.21366 2.2974377 2.3770094 2.4517808 2.5212927 2.5851517 2.6430542 2.6947691 2.7401295 2.7790248 2.811372 2.8371277 2.8562489 2.8687212 2.8745363 2.875 2.8742955 2.8703375 2.8630583 2.8526452 2.839286 2.8231678 2.8044755 2.783391 2.7600923 2.7347527 2.7075405 2.6786184 2.648143 2.6162646 2.5831273 2.5488675 2.5136163 2.4774973 2.4406273 2.403117 2.36507 2.3265843 2.2877512 2.248656 2.2093782 2.1699922 2.1305664 2.0911644 2.0518448 2.012662 1.9736651 1.9348997 1.8964071 1.858225 1.8203875 1.7829252 1.7458661 1.7092345 1.6730527 1.63734 1.6021132 1.5673875 1.5331753 1.4994875 1.466333 1.4337194 1.4016522 1.3701361 1.339174 1.3087682 1.278919 1.2496266 1.22089 1.1927071 1.1650753 1.1379912 1.1114509 1.0854498 1.059983 1.035045 1.0106298 0.98673123 0.9633428 0.9404576 0.9180686 0.89616853 0.87475 0.8538055 0.8333272 0.81330734 0.79373807 0.77461153 0.7559197 0.7376547 0.71980846 0.7023731 0.68534064 0.66870326 0.65245306 0.63658226 0.62108314 0.60594803 0.59116936 0.57673967 0.5626515 0.5488976 0.5354708 0.52236384 0.5095699 0.4970819 0.48489317 0.47299704 0.4613869 0.4500563 0.43899897 0.4282086 0.41767913 0.40740454 0.39737898 0.3875967 0.378052 0.36873937 0.35965335 0.3507887 0.34214017 0.33370265 0.32547116 0.3174408 0.30960685 0.3019646 0.29450947 0.287237 0.2801428 0.27322263 0.26647225 0.25988764 0.25346476 0.24719971 0.2410887 0.235128 0.22931395 0.223643 0.2181117 0.21271662 0.20745446 0.20232199 0.19731605 0.19243354 0.18767147 0.18302687 0.17849688 0.1740787 0.16976959 0.16556688 0.16146795 0.15747029 0.15357137 0.1497688 0.1460602 0.14244325 0.13891573 0.13547541 0.13212015 0.12884787 0.12565652 0.122544095 0.11950867 0.11654834 0.11366125 0.110845596 0.108099625 0.1054216 0.10280987 0.10026277 0.09777872 0.095356174 0.092993595 0.0906895 0.08844246 0.08625106 0.08411392 0.0820297 0.07999709 0.07801483 0.076081656 0.07419636 0.07235776 0.0705647 0.06881605 0.067110725 0.065447636 0.06382575 0.062244035 0.060701508 0.059197195 0.057730153 0.056299455 0.054904204 0.053543523 0.052216552 0.05092246

</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="2.875" PeakHeight="242.373" Num="5" zHalfNm="225.965" Error="0.566">
-40.248 1.003 -0.666 0.444 -0.156
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="7" 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="6510.917" A="-1.58830494E11" B="4.902176E7" C="-3782.4177" Error="0.00166"/>
<QuasiParabolic ID="2" StartDistance="6510.917" EndDistance="6541.833" A="0.0" B="33.924778" C="0.03481632" Error="6.69E-4"/>
<QuasiParabolic ID="3" StartDistance="6541.833" EndDistance="6572.0" A="5.844999E10" B="-1.7952144E7" C="1378.4519" Error="0.031"/>
<QuasiParabolic ID="4" StartDistance="6572.0" EndDistance="6584.0" A="1.06103057E13" B="-3.22910746E9" C="245684.23" Error="0.0565"/>
<QuasiParabolic ID="5" StartDistance="6584.0" EndDistance="6600.0" A="1.74701077E13" B="-5.3128868E9" C="403929.94" Error="0.0367"/>
<QuasiParabolic ID="6" StartDistance="6600.0" EndDistance="6612.373" A="-3.33576625E13" B="1.00894679E10" C="-762915.1" Error="0.0116"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="92.75" Depth="0.154"/>
<TopsideChapman PeakHeight="242.373" PeakDensity="102551.18" PeakScaleHeight="12.451" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
