<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-23 -113 07:45:00.000"
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: 95% PACIFIC flags: Multiple candidates for F2x cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.23 (113) 07:45:00</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">
FF202611304230745001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.075" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="4.004" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.313" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.325" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.325" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.400" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="207.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="207.500" 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="0.025" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.925" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="232.621" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.325" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.325" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="212.902" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="198.196" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.736" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="21.015" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.566" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="11.278" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="19.840" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.680" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="31">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 2.775 2.8 2.825 2.85 2.875 2.9 2.925 2.95 2.975 3.0 3.025 3.05 3.075
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
207.500 207.500 208.125 208.750 209.375 210.000 210.000 210.000 212.500 213.333 214.167 215.000 215.000 215.000 217.500 217.500 217.500 220.000 220.000 222.500 225.000 225.000 227.125 229.629 232.621 236.260 240.782 246.552 254.169 264.690 280.166
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
54 57 0 0 0 69 69 66 66 0 0 63 66 69 69 72 69 69 54 51 42 48 54 0 0 0 69 0 0 0 78
</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 -4.6875 1.5625 1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="291">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 132.75 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 155.5 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 178.25 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 212.902 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0
</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 0.35375562 0.35316312 0.35201776 0.35053736 0.34852743 0.34607637 0.3432073 0.3398182 0.3359499 0.3315876 0.3266711 0.32122076 0.31516615 0.30852863 0.30124253 0.2931789 0.2843912 0.27475142 0.26413658 0.252487 0.23960334 0.22532961 0.211 0.211 0.211 0.211 0.211 0.211 0.211 0.211 0.211 0.211 0.211 0.211 0.211 0.211 0.211 0.211 0.211 0.211 0.211 0.211 0.211 0.211 0.211 0.211 0.211 0.21414286 0.22042857 0.22671428 0.233 0.23928571 0.24557143 0.25185713 0.25814286 0.2644286 0.27071428 0.277 0.2832857 0.28957143 0.29585713 0.30214286 0.3084286 0.31471428 0.321 0.3272857 0.33357143 0.33985713 0.34614286 0.3524286 0.354 0.38662368 0.4354904 0.48974177 0.5485882 0.61153066 0.6783931 0.7492827 0.824481 0.90439063 0.98949474 1.0802996 1.1773167 1.2809514 1.3913959 1.5085412 1.6317334 1.7596622 1.8903611 2.0213227 2.1497526 2.2731028 2.3892467 2.4967725 2.594832 2.683105 2.7615845 2.8305075 2.8901832 2.9409616 2.9831839 3.0171611 3.043154 3.0613627 3.0719385 3.075 3.0749774 3.0722117 3.0650158 3.0536582 3.0384095 3.019539 2.9973133 2.9719934 2.9438348 2.913085 2.8799834 2.8447602 2.8076353 2.7688186 2.7285101 2.6868982 2.6441612 2.600467 2.5559719 2.5108235 2.465158 2.4191031 2.3727763 2.3262863 2.2797334 2.2332098 2.1867995 2.1405797 2.0946198 2.0489833 2.0037277 1.9589038 1.9145578 1.8707304 1.827458 1.7847722 1.7427006 1.7012674 1.6604927 1.6203939 1.5809852 1.5422783 1.504282 1.4670032 1.4304467 1.394615 1.3595095 1.3251294 1.2914728 1.2585367 1.2263165 1.1948068 1.1640015 1.1338934 1.1044745 1.0757365 1.0476704 1.0202665 0.9935149 0.9674054 0.9419273 0.9170698 0.8928219 0.8691724 0.8461099 0.8236232 0.8017006 0.78033084 0.75950235 0.73920375 0.71942365 0.7001507 0.6813738 0.66308165 0.6452633 0.62790793 0.61100477 0.5945431 0.5785126 0.5629029 0.5477039 0.53290564 0.51849824 0.50447226 0.49081808 0.47752658 0.46458858 0.45199528 0.43973792 0.42780796 0.4161971 0.40489712 0.39390007 0.3831981 0.37278363 0.36264917 0.35278744 0.34319133 0.33385384 0.32476828 0.31592795 0.3073264 0.29895738 0.2908147 0.28289235 0.2751845 0.26768547 0.26038966 0.25329167 0.24638623 0.23966816 0.23313248 0.22677429 0.22058882 0.21457143 0.20871763 0.20302299 0.19748324 0.19209419 0.1868518 0.1817521 0.17679122 0.17196544 0.16727109 0.1627046 0.15826254 0.15394151 0.14973827 0.14564957 0.14167236 0.13780357 0.13404028 0.13037963 0.12681882 0.12335514 0.11998595 0.11670869 0.11352084 0.11041999 0.107403755 0.104469836 0.101616 0.098840065 0.09613991 0.09351346 0.090958714 0.08847372 0.08605658 0.08370544 0.0814185 0.07919401 0.077030264 0.07492562 0.07287844 0.070887186 0.06895031 0.06706634 0.06523383 0.06345137 0.061717607 0.060031198 0.05839086 0.056795333 0.05524339 0.053733848 0.052265543 0.050837353

</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="3.075" PeakHeight="212.902" Num="5" zHalfNm="198.196" Error="0.985">
-36.088 2.706 -1.991 0.991 -0.27
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="11" 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="6502.75" A="-2.76986757E11" B="8.5489736E7" C="-6596.305" Error="0.00133"/>
<QuasiParabolic ID="2" StartDistance="6502.75" EndDistance="6525.5" A="0.0" B="1049.4015" C="-0.11680004" Error="0.0114"/>
<QuasiParabolic ID="3" StartDistance="6525.5" EndDistance="6527.0" A="-3.50903311E12" B="1.07518246E9" C="-82360.055" Error="0.0263"/>
<QuasiParabolic ID="4" StartDistance="6527.0" EndDistance="6536.0" A="3.16078588E11" B="-9.6906336E7" C="7427.661" Error="0.0399"/>
<QuasiParabolic ID="5" StartDistance="6536.0" EndDistance="6547.0" A="-8.9545556E10" B="2.7213658E7" C="-2067.4424" Error="0.014"/>
<QuasiParabolic ID="6" StartDistance="6547.0" EndDistance="6554.0" A="1.19913778E13" B="-3.66330803E9" C="279780.88" Error="0.0276"/>
<QuasiParabolic ID="7" StartDistance="6554.0" EndDistance="6557.0" A="1.45767782E13" B="-4.4522614E9" C="339969.56" Error="0.0014"/>
<QuasiParabolic ID="8" StartDistance="6557.0" EndDistance="6565.0" A="3.38693718E13" B="-1.03368407E10" C="788694.56" Error="0.0222"/>
<QuasiParabolic ID="9" StartDistance="6565.0" EndDistance="6570.0" A="2.89316232E13" B="-8.8325765E9" C="674127.56" Error="0.0144"/>
<QuasiParabolic ID="10" StartDistance="6570.0" EndDistance="6582.902" A="-4.2547741E13" B="1.29267425E10" C="-981832.8" Error="0.00688"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="68.25" Depth="0.143"/>
<TopsideChapman PeakHeight="212.902" PeakDensity="117315.445" PeakScaleHeight="11.278" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
