<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-12 -102 22:20:00.000"
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="20.0">
<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" >
2026.04.12 (102) 22:20:00</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">
FF202610204122220001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.475" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.855" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.396" 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="3.775" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="215.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="215.000" 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="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.350" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="255.007" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.374" 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="225.014" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="207.669" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="6.236" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="24.828" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.849" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="13.329" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="23.500" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.720" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="35">
<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 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
215.000 215.625 216.250 216.875 217.500 218.500 219.500 220.500 221.500 222.500 222.500 223.750 225.000 226.250 227.500 228.750 230.000 232.000 234.000 236.000 238.000 240.000 240.000 242.500 242.500 245.000 246.941 249.196 251.846 255.007 258.841 263.589 269.621 277.542 288.403
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
48 0 0 0 51 0 0 0 0 30 30 0 0 0 0 0 66 0 0 0 0 78 66 66 66 66 78 78 78 78 81 78 0 63 60
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-3.125 3.125 3.125 -3.125 -3.125 -3.125 3.125 -3.125 3.125 -3.125 3.125 -3.125 -3.125 9.375 3.125 -3.125 -3.125 3.125 -3.125 -3.125 -3.125 3.125 3.125 3.125 3.125 3.125 -3.125 3.125 -3.125 -3.125 3.125 3.125 -3.125 3.125 3.125
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="338">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.1 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 134.5 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 183.5 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 225.014 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.22405988 0.24713111 0.26697373 0.2841865 0.29921755 0.31238344 0.32392526 0.33401725 0.34279275 0.3503536 0.35677683 0.36212438 0.36644292 0.3697676 0.37212455 0.37353206 0.374 0.3737876 0.37315118 0.37200978 0.37045598 0.36850008 0.36607295 0.36319426 0.35980764 0.3559451 0.35156676 0.3466453 0.34123918 0.33520478 0.32856998 0.32131907 0.3133516 0.30463436 0.2951059 0.28465724 0.27320704 0.26066032 0.24673925 0.23135729 0.21423939 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 0.20710205 0.21420409 0.22130612 0.22840816 0.2355102 0.24261224 0.24971429 0.25681633 0.26391837 0.2710204 0.27812245 0.2852245 0.29232654 0.29942858 0.30653062 0.31363267 0.32073468 0.32783672 0.33493876 0.3420408 0.34914285 0.3562449 0.36334693 0.37044898 0.374 0.3915903 0.4318702 0.47898957 0.5322595 0.5904646 0.6525031 0.71762174 0.78546643 0.855992 0.9293239 1.0057299 1.0855132 1.1690629 1.2567459 1.3489137 1.4459462 1.5480398 1.6553023 1.767645 1.8845932 2.0053248 2.1286426 2.2528708 2.3761728 2.4966085 2.6123984 2.7221453 2.824776 2.9196665 3.006505 3.0852263 3.1559536 3.2189002 3.2743125 3.3224633 3.3636231 3.398041 3.4259143 3.447431 3.4627233 3.4718933 3.474994 3.475 3.4731717 3.4677024 3.4587748 3.4465742 3.4312856 3.4130929 3.3921785 3.3687217 3.3428986 3.314881 3.284836 3.252926 3.2193074 3.1841311 3.1475427 3.1096807 3.0706782 3.0306618 2.9897523 2.9480639 2.9057047 2.8627775 2.8193786 2.7755985 2.7315228 2.6872313 2.6427987 2.5982945 2.5537837 2.5093267 2.464979 2.4207926 2.3768148 2.3330896 2.2896574 2.2465546 2.2038147 2.1614685 2.1195436 2.0780642 2.0370533 1.9965304 1.9565133 1.9170172 1.878056 1.8396412 1.8017828 1.7644893 1.7277675 1.6916227 1.6560594 1.6210805 1.586688 1.5528829 1.519665 1.4870336 1.454987 1.4235228 1.3926382 1.3623292 1.332592 1.3034219 1.2748135 1.2467616 1.2192602 1.1923032 1.1658841 1.1399962 1.1146326 1.089786 1.0654495 1.0416152 1.0182759 0.99542373 0.97305113 0.9511503 0.9297134 0.90873265 0.8882001 0.86810803 0.8484485 0.82921374 0.81039596 0.7919875 0.77398056 0.75636756 0.739141 0.72229326 0.70581704 0.689705 0.67394984 0.6585444 0.6434817 0.6287546 0.61435634 0.60028017 0.5865193 0.57306725 0.5599175 0.54706365 0.5344995 0.5222189 0.5102157 0.49848402 0.48701802 0.47581196 0.46486017 0.45415717 0.4436975 0.43347588 0.42348704 0.41372585 0.40418735 0.3948666 0.38575876 0.3768591 0.368163 0.35966593 0.35136342 0.34325117 0.33532488 0.3275804 0.32001358 0.31262052 0.3053972 0.2983399 0.29144478 0.28470823 0.27812663 0.27169645 0.2654143 0.25927678 0.2532806 0.24742258 0.24169955 0.23610842 0.23064621 0.22530995 0.22009678 0.2150039 0.21002851 0.20516796 0.20041962 0.1957809 0.19124931 0.18682237 0.1824977 0.17827293 0.17414579 0.17011401 0.16617541 0.16232786 0.15856925 0.15489753 0.15131071 0.14780684 0.14438401 0.14104033 0.137774 0.13458322 0.13146627 0.12842143 0.12544703 0.12254147 0.119703144 0.11693051 0.114222035 0.111576244 0.108991705 0.106466986 0.10400071 0.10159153 0.09923812 0.0969392 0.094693504 0.09249981 0.0903569 0.088263616 0.086218804 0.08422134 0.08227014 0.08036412 0.078502245 0.076683484 0.07490685 0.07317136 0.07147607 0.069820054 0.068202384 0.06662218 0.06507859 0.06357075 0.062097836 0.060659043 0.059253577 0.05788067 0.05653957 0.055229533 0.053949848 0.052699804 0.05147872 0.050285928

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.374" PeakHeight="110.0" Num="3" Error="0.0">
-19.461 2.736 -0.175
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.374" EndFrequency="3.475" PeakHeight="225.014" Num="5" zHalfNm="207.669" Error="1.127">
-43.31 3.276 -2.282 1.29 -0.488
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="10" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6460.02" EndDistance="6480.001" A="-6.1398313E11" B="1.8950096E8" C="-14621.848" Error="0.00251"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6504.5" A="-2.95669203E11" B="9.1255928E7" C="-7041.2124" Error="0.00179"/>
<QuasiParabolic ID="2" StartDistance="6504.5" EndDistance="6529.0" A="0.0" B="1225.4132" C="-0.14841752" Error="0.0182"/>
<QuasiParabolic ID="3" StartDistance="6529.0" EndDistance="6531.0" A="-3.61509683E12" B="1.1070144E9" C="-84747.41" Error="0.0783"/>
<QuasiParabolic ID="4" StartDistance="6531.0" EndDistance="6545.0" A="3.16659663E11" B="-9.7014456E7" C="7430.5845" Error="0.0734"/>
<QuasiParabolic ID="5" StartDistance="6545.0" EndDistance="6552.0" A="-3.01769622E11" B="9.1963168E7" C="-7006.209" Error="0.0111"/>
<QuasiParabolic ID="6" StartDistance="6552.0" EndDistance="6556.0" A="9.5403618E12" B="-2.91235046E9" C="222260.7" Error="0.0305"/>
<QuasiParabolic ID="7" StartDistance="6556.0" EndDistance="6568.0" A="1.39815362E13" B="-4.26719334E9" C="325589.16" Error="0.0568"/>
<QuasiParabolic ID="8" StartDistance="6568.0" EndDistance="6579.0" A="3.7517189E13" B="-1.14339574E10" C="871171.06" Error="0.027"/>
<QuasiParabolic ID="9" StartDistance="6579.0" EndDistance="6595.014" A="-3.9046613E13" B="1.18412524E10" C="-897730.7" Error="0.00997"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="73.5" Depth="0.174"/>
<TopsideChapman PeakHeight="225.014" PeakDensity="149821.66" PeakScaleHeight="13.329" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
