<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-12 -102 22:45:00.000"
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: 90% PACIFIC flags: One of F2 cusps was derived from the other</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.12 (102) 22:45:00</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">
FF202610204122245001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.750" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.791" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="10.426" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.125" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.125" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.200" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="222.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="222.500" 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="0.175" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.650" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="263.379" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.125" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.125" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="231.682" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="212.776" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="5.879" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="27.005" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.585" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.544" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="25.520" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.730" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="26">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 2.65 2.675 2.7 2.725 2.75
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
222.500 222.500 225.000 225.833 226.667 227.500 230.000 231.667 233.333 235.000 237.500 240.000 241.299 242.732 244.323 246.098 248.092 250.347 252.919 255.879 259.323 263.379 268.227 274.123 281.450 290.798
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
54 54 78 0 0 54 42 0 0 39 48 54 57 57 60 60 60 60 60 57 54 54 48 54 54 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="353">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 136.25 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 162.5 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 188.75 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 231.682 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0
</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 0.353812 0.35332385 0.3524629 0.35123456 0.3496469 0.3477836 0.34551057 0.34284618 0.3398121 0.3363646 0.33256927 0.32832938 0.32366115 0.31855893 0.31297255 0.3068771 0.30027556 0.29307804 0.2853064 0.27685073 0.26765716 0.25764734 0.24675402 0.23483722 0.22173925 0.20734549 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 0.20293333 0.2088 0.21466666 0.22053333 0.2264 0.23226666 0.23813333 0.244 0.24986666 0.25573334 0.2616 0.26746666 0.27333334 0.2792 0.28506666 0.29093334 0.2968 0.30266666 0.30853334 0.3144 0.32026666 0.32613334 0.332 0.33786666 0.34373334 0.3496 0.354 0.36220315 0.39814618 0.438653 0.48288834 0.5299872 0.5793173 0.63053215 0.68352205 0.7383246 0.7950887 0.85399467 0.91527 0.97917026 1.045925 1.1157796 1.1889176 1.2654877 1.3454942 1.4288181 1.5151618 1.603946 1.6943383 1.785333 1.8756822 1.9641733 2.0496435 2.131118 2.2078738 2.279445 2.345552 2.4061303 2.4612033 2.510902 2.55539 2.5948546 2.6294746 2.659444 2.684913 2.7060273 2.7229168 2.7356749 2.744378 2.7490768 2.75 2.7498722 2.7478364 2.7434072 2.7366965 2.7278168 2.7168813 2.704002 2.6892898 2.6728547 2.654805 2.6352458 2.6142807 2.5920103 2.568532 2.5439405 2.5183272 2.4917803 2.464384 2.43622 2.4073656 2.3778954 2.3478804 2.3173878 2.2864819 2.2552233 2.2236698 2.1918757 2.1598926 2.1277683 2.0955489 2.0632768 2.0309916 1.9987313 1.9665304 1.9344215 1.9024348 1.8705983 1.8389379 1.8074776 1.7762394 1.7452435 1.7145085 1.6840514 1.6538874 1.6240306 1.5944935 1.5652875 1.5364225 1.5079075 1.4797504 1.451958 1.4245361 1.39749 1.3708237 1.3445406 1.3186436 1.2931343 1.2680146 1.243285 1.2189457 1.1949968 1.1714374 1.1482664 1.1254823 1.1030833 1.0810671 1.0594312 1.038173 1.017289 0.9967765 0.97663164 0.9568509 0.9374304 0.91836613 0.899654 0.8812897 0.863269 0.8455874 0.82824033 0.81122327 0.7945316 0.7781605 0.7621054 0.74636155 0.73092407 0.7157883 0.7009494 0.68640256 0.6721431 0.65816617 0.64446706 0.6310411 0.61788356 0.60498977 0.59235513 0.579975 0.567845 0.5559604 0.54431695 0.5329101 0.52173555 0.510789 0.50006616 0.48956287 0.479275 0.46919838 0.45932904 0.44966298 0.4401963 0.43092516 0.4218457 0.4129542 0.40424705 0.3957205 0.38737106 0.37919524 0.37118953 0.3633506 0.3556751 0.34815973 0.3408013 0.33359662 0.32654265 0.31963626 0.3128745 0.30625445 0.2997732 0.2934279 0.28721583 0.2811342 0.27518037 0.26935172 0.26364565 0.25805965 0.25259125 0.24723804 0.2419976 0.2368676 0.23184577 0.22692986 0.22211768 0.21740705 0.21279585 0.20828205 0.2038636 0.19953851 0.19530483 0.19116063 0.18710408 0.18313332 0.17924654 0.17544203 0.171718 0.16807282 0.1645048 0.16101234 0.15759382 0.15424772 0.1509725 0.14776668 0.1446288 0.1415574 0.13855112 0.13560855 0.13272837 0.12990926 0.12714994 0.124449134 0.12180561 0.119218156 0.11668559 0.11420676 0.111780524 0.10940576 0.1070814 0.10480636 0.102579616 0.10040013 0.09826691 0.096178964 0.094135344 0.09213512 0.09017735 0.08826116 0.086385645 0.08454996 0.08275326 0.08099472 0.07927352 0.07758887 0.07594001 0.074326165 0.072746605 0.07120059 0.06968742 0.068206385 0.066756815 0.065338045 0.06394941 0.06259028 0.061260022 0.059958026 0.058683693 0.05743644 0.05621568 0.055020865 0.053851437 0.052706853 0.051586594 0.050490137

</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="2.75" PeakHeight="231.682" Num="5" zHalfNm="212.776" Error="0.965">
-45.255 3.843 -2.444 1.342 -0.418
</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="6506.25" A="-2.20048884E11" B="6.791632E7" C="-5240.3315" Error="0.00141"/>
<QuasiParabolic ID="2" StartDistance="6506.25" EndDistance="6532.5" A="0.0" B="-2719.5588" C="0.45800436" Error="0.0423"/>
<QuasiParabolic ID="3" StartDistance="6532.5" EndDistance="6558.0" A="1.1841323E11" B="-3.6323928E7" C="2785.6736" Error="0.0423"/>
<QuasiParabolic ID="4" StartDistance="6558.0" EndDistance="6574.0" A="8.9475525E12" B="-2.72895565E9" C="208079.34" Error="0.0486"/>
<QuasiParabolic ID="5" StartDistance="6574.0" EndDistance="6584.0" A="2.13696035E13" B="-6.5081011E9" C="495510.56" Error="0.026"/>
<QuasiParabolic ID="6" StartDistance="6584.0" EndDistance="6601.682" A="-2.05588823E13" B="6.2283771E9" C="-471718.97" Error="0.00973"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="78.75" Depth="0.154"/>
<TopsideChapman PeakHeight="231.682" PeakDensity="93827.55" PeakScaleHeight="14.544" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
