<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-06 -096 07:35:00.000"
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: 95% PACIFIC flags: Multiple candidates for F2x cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.06 (096) 07:35:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.97" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202609604060735001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.150" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.989" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="16.553" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.150" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.150" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.475" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="202.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="202.500" 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="4.025" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="242.963" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.150" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.150" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="215.081" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="197.686" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.776" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="24.809" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.192" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="13.315" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="22.370" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.040" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="81">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 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 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 4.025 4.05 4.075 4.1 4.125 4.15
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 205.000 205.000 205.000 205.000 205.000 205.000 205.000 205.000 205.000 205.000 205.000 207.500 207.500 207.500 207.500 207.500 207.500 207.500 208.333 209.167 210.000 210.833 211.667 212.500 212.500 212.500 212.500 212.500 212.500 212.500 212.500 212.500 212.500 215.000 215.000 215.000 215.000 215.000 217.500 217.500 217.500 217.500 217.500 220.000 220.833 221.667 222.500 222.500 222.500 222.500 227.500 227.500 227.500 227.500 230.000 230.000 232.500 235.000 235.000 236.421 238.141 240.268 242.963 246.491 251.307 258.274 269.248 289.083
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
75 0 0 0 51 51 0 0 51 63 63 66 63 63 63 0 0 63 60 63 66 66 63 63 63 66 72 48 45 54 51 0 0 0 0 0 84 0 0 0 81 96 96 99 99 99 96 96 96 96 96 90 93 72 69 93 96 81 0 75 75 72 72 54 60 63 63 72 75 87 90 78 78 78 75 87 90 90 84 102 93
</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 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 -1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="336">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 131.58333 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 153.16667 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 174.75 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 215.081 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0
</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 0.35378125 0.3531261 0.35197777 0.35040918 0.3483742 0.34589443 0.34293804 0.3394836 0.33552164 0.3310028 0.32600388 0.32038844 0.31416655 0.30732158 0.2998168 0.29156289 0.28250316 0.2724882 0.26154712 0.24950138 0.23614414 0.226 0.226 0.226 0.226 0.226 0.226 0.226 0.226 0.226 0.226 0.226 0.226 0.226 0.226 0.226 0.226 0.226 0.226 0.226 0.226 0.226 0.226 0.226 0.226 0.23094209 0.23687258 0.24280308 0.2487336 0.2546641 0.2605946 0.2665251 0.2724556 0.2783861 0.2843166 0.2902471 0.2961776 0.3021081 0.30803862 0.3139691 0.31989962 0.3258301 0.33176062 0.33769113 0.3436216 0.34955212 0.354 0.3660044 0.4163241 0.4700766 0.52716833 0.5877207 0.6520647 0.72063726 0.79398793 0.8727469 0.9576336 1.0494794 1.1491857 1.2577509 1.3761576 1.5052291 1.6455873 1.7972599 1.9593482 2.1298912 2.305683 2.4827244 2.6568909 2.824574 2.9830928 3.1308792 3.2671642 3.3917844 3.5050032 3.6072798 3.699152 3.7811406 3.853814 3.9176464 3.9730544 4.020428 4.060081 4.092275 4.1172266 4.1350894 4.145983 4.149977 4.15 4.1480975 4.141837 4.131424 4.1170797 4.0990257 4.077483 4.05267 4.0248013 3.994089 3.9607382 3.9249501 3.8869193 3.8468337 3.8048747 3.7612164 3.7160258 3.6694624 3.6216786 3.572819 3.523021 3.4724145 3.4211226 3.3692613 3.3169394 3.2642596 3.2113178 3.1582034 3.1050005 3.051787 2.9986348 2.9456117 2.892779 2.8401947 2.787911 2.7359762 2.6844344 2.633326 2.5826879 2.5325525 2.4829502 2.4339075 2.3854485 2.337594 2.290363 2.2437718 2.1978343 2.1525624 2.1079664 2.0640543 2.0208328 1.9783071 1.9364808 1.8953562 1.8549346 1.8152157 1.7761987 1.7378817 1.7002617 1.6633351 1.6270977 1.5915445 1.5566698 1.5224677 1.4889314 1.456054 1.423828 1.3922458 1.3612993 1.3309802 1.3012798 1.2721896 1.2437006 1.2158037 1.1884899 1.1617498 1.1355743 1.1099539 1.0848792 1.0603406 1.0363292 1.0128353 0.9898494 0.96736246 0.94536513 0.92384815 0.90280247 0.882219 0.86208874 0.8424029 0.82315254 0.8043291 0.78592396 0.76792866 0.75033486 0.7331343 0.7163189 0.6998806 0.6838116 0.6681041 0.6527505 0.63774323 0.623075 0.60873854 0.59472674 0.5810326 0.5676492 0.55456984 0.54178786 0.5292969 0.5170904 0.50516224 0.49350625 0.48211643 0.4709869 0.4601119 0.44948572 0.43910286 0.42895788 0.41904545 0.4093604 0.3998976 0.3906521 0.38161895 0.3727934 0.36417076 0.35574645 0.34751597 0.33947495 0.33161908 0.32394415 0.3164461 0.30912083 0.30196446 0.29497316 0.2881431 0.28147066 0.27495223 0.26858425 0.2623633 0.25628605 0.2503492 0.24454948 0.2388838 0.23334906 0.22794226 0.22266047 0.2175008 0.21246049 0.20753674 0.20272689 0.19802833 0.19343849 0.18895485 0.18457499 0.18029651 0.17611706 0.17203438 0.16804622 0.16415042 0.16034481 0.15662734 0.15299597 0.14944872 0.14598364 0.14259881 0.1392924 0.1360626 0.13290763 0.12982577 0.1268153 0.12387462 0.12100207 0.11819609 0.11545514 0.112777725 0.11016237 0.107607625 0.1051121 0.102674425 0.10029326 0.09796728 0.095695235 0.09347586 0.09130794 0.08919028 0.08712172 0.08510111 0.083127365 0.08119937 0.07931609 0.07747647 0.07567951 0.07392422 0.07220963 0.070534796 0.068898804 0.06730075 0.06573976 0.06421496 0.06272552 0.06127063 0.059849475 0.05846128 0.05710528 0.055780724 0.05448689 0.053223062 0.051988546 0.050782662

</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="4.15" PeakHeight="215.081" Num="5" zHalfNm="197.686" Error="0.309">
-43.587 5.539 -3.569 1.561 -0.275
</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="6501.583" A="-2.82569605E11" B="8.721284E7" C="-6729.2603" Error="0.0016"/>
<QuasiParabolic ID="2" StartDistance="6501.583" EndDistance="6523.167" A="0.0" B="-7784.413" C="1.2484679" Error="0.0792"/>
<QuasiParabolic ID="3" StartDistance="6523.167" EndDistance="6537.0" A="3.41403238E11" B="-1.04683944E8" C="8024.824" Error="0.0792"/>
<QuasiParabolic ID="4" StartDistance="6537.0" EndDistance="6541.0" A="-7.2974723E11" B="2.23035344E8" C="-17041.666" Error="0.0112"/>
<QuasiParabolic ID="5" StartDistance="6541.0" EndDistance="6545.0" A="2.94598161E12" B="-9.0086893E8" C="68870.6" Error="0.0691"/>
<QuasiParabolic ID="6" StartDistance="6545.0" EndDistance="6554.0" A="1.39701109E13" B="-4.26958669E9" C="326221.06" Error="0.0756"/>
<QuasiParabolic ID="7" StartDistance="6554.0" EndDistance="6568.0" A="5.5191127E13" B="-1.68484741E10" C="1285855.5" Error="0.0626"/>
<QuasiParabolic ID="8" StartDistance="6568.0" EndDistance="6585.081" A="-5.3689314E13" B="1.63063491E10" C="-1238111.0" Error="0.00566"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="64.75" Depth="0.128"/>
<TopsideChapman PeakHeight="215.081" PeakDensity="213678.66" PeakScaleHeight="13.315" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
