<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-05 -095 06:50:00.000"
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" >
2026.04.05 (095) 06:50:00</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">
FF202609504050650001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.525" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="4.200" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="14.806" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.425" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.425" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.850" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="197.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="197.500" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.475" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="228.271" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.425" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.425" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="201.619" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="189.300" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.064" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="17.656" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.673" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="10.583" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="17.320" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.260" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="45">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
197.500 197.500 200.000 200.000 200.000 200.000 200.000 200.000 200.000 200.625 201.250 201.875 202.500 202.500 202.500 202.500 202.500 205.000 205.000 205.000 205.000 205.000 205.000 205.000 207.500 207.500 207.500 207.500 210.000 210.000 210.000 212.500 212.500 212.500 215.000 217.500 217.500 217.500 218.663 220.128 222.031 224.603 228.271 233.928 243.790
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
63 63 63 0 63 63 66 63 60 0 0 0 60 0 63 0 54 54 57 51 0 54 69 66 78 78 87 87 93 96 96 93 96 93 93 84 69 69 108 108 93 90 75 72 75
</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 -7.8125 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="274">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 130.41667 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 150.83333 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 171.25 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 201.619 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0
</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 0.35375172 0.35311857 0.35194156 0.35034353 0.348288 0.34577343 0.34275505 0.3392274 0.3352465 0.33069065 0.32556674 0.31982708 0.31355324 0.30657426 0.2989218 0.29046544 0.28123897 0.27106133 0.2598764 0.24752563 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.24192245 0.24745715 0.25299183 0.25852653 0.2640612 0.26959592 0.2751306 0.2806653 0.2862 0.2917347 0.29726937 0.30280408 0.30833876 0.31387347 0.31940815 0.32494286 0.33047757 0.33601224 0.34154695 0.34708163 0.35261634 0.354 0.39491004 0.45769238 0.52936006 0.60918087 0.6966074 0.7914036 0.8935131 1.0030915 1.1202476 1.245116 1.3776593 1.5175366 1.6641694 1.8164749 1.9729472 2.131667 2.290356 2.4465704 2.5979283 2.7421608 2.8772848 3.001736 3.1142836 3.2140548 3.3004453 3.3730583 3.4316502 3.4760916 3.5063071 3.5222664 3.525 3.524557 3.519299 3.5084035 3.492245 3.4711983 3.445635 3.415921 3.382413 3.3454576 3.3053892 3.262529 3.217183 3.169643 3.1201844 3.0690675 3.0165367 2.9628203 2.908132 2.8526697 2.796617 2.7401438 2.6834059 2.6265461 2.569696 2.5129738 2.4564884 2.400337 2.3446078 2.2893796 2.234723 2.1807003 2.1273663 2.0747695 2.0229518 1.9719491 1.9217921 1.8725066 1.824114 1.776631 1.7300713 1.6844445 1.6397578 1.5960146 1.5532166 1.5113629 1.4704504 1.4304743 1.3914281 1.3533039 1.3160925 1.2797834 1.2443652 1.2098258 1.176152 1.1433301 1.1113461 1.0801853 1.0498326 1.0202727 0.9914902 0.9634692 0.93619394 0.90964854 0.8838171 0.8586837 0.83423257 0.81044793 0.7873142 0.7648158 0.74293756 0.7216642 0.7009808 0.6808727 0.66132534 0.6423245 0.6238561 0.6059064 0.5884619 0.57150924 0.5550356 0.53902805 0.52347434 0.5083621 0.49367955 0.47941497 0.46555698 0.4520945 0.4390166 0.4263128 0.41397268 0.40198618 0.3903435 0.379035 0.36805138 0.35738352 0.34702256 0.3369599 0.3271871 0.31769598 0.30847853 0.29952708 0.290834 0.282392 0.2741939 0.2662328 0.25850186 0.25099453 0.24370447 0.2366254 0.2297513 0.22307628 0.21659465 0.21030083 0.20418943 0.1982552 0.19249304 0.186898 0.18146525 0.17619012 0.17106807 0.16609468 0.16126563 0.15657678 0.15202406 0.14760356 0.14331141 0.13914394 0.13509752 0.13116865 0.12735394 0.123650044 0.12005378 0.11656203 0.113171756 0.109880015 0.106683955 0.103580795 0.10056785 0.09764248 0.09480217 0.092044435 0.08936688 0.08676718 0.084243074 0.08179236 0.07941292 0.07710267 0.07485961 0.072681785 0.070567295 0.0685143 0.06652102 0.064585716 0.0627067 0.06088234 0.059111048 0.057391275 0.05572153 0.054100357 0.05252634 0.05099811

</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="3.525" PeakHeight="201.619" Num="5" zHalfNm="189.3" Error="0.182">
-31.199 1.319 -0.712 0.347 -0.124
</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="6500.417" A="-2.85866426E11" B="8.8230384E7" C="-6807.7744" Error="0.00128"/>
<QuasiParabolic ID="2" StartDistance="6500.417" EndDistance="6520.833" A="0.0" B="977.806" C="-0.092266634" Error="0.00683"/>
<QuasiParabolic ID="3" StartDistance="6520.833" EndDistance="6539.0" A="3.6355121E10" B="-1.1272889E7" C="873.82074" Error="0.00731"/>
<QuasiParabolic ID="4" StartDistance="6539.0" EndDistance="6541.0" A="2.38851719E12" B="-7.306985E8" C="55884.188" Error="0.00728"/>
<QuasiParabolic ID="5" StartDistance="6541.0" EndDistance="6546.0" A="2.27932425E13" B="-6.9697219E9" C="532800.8" Error="0.0633"/>
<QuasiParabolic ID="6" StartDistance="6546.0" EndDistance="6549.0" A="2.63217742E13" B="-8.0477947E9" C="615146.75" Error="0.0107"/>
<QuasiParabolic ID="7" StartDistance="6549.0" EndDistance="6562.0" A="4.735532E13" B="-1.44712325E10" C="1105560.4" Error="0.0373"/>
<QuasiParabolic ID="8" StartDistance="6562.0" EndDistance="6571.619" A="-8.5256351E13" B="2.59468329E10" C="-1974146.0" Error="0.0115"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="61.25" Depth="0.113"/>
<TopsideChapman PeakHeight="201.619" PeakDensity="154164.08" PeakScaleHeight="10.583" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
