<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-06 -126 08:00:00.000"
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" >
2026.05.06 (126) 08:00:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.21" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.99" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="75.82641" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202612605060800001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.300" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="4.066" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.417" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.950" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.950" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.625" 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="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.225" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="237.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.950" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.950" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="215.655" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="205.099" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.432" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="15.137" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.570" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="10.583" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="15.190" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.060" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="15">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
222.500 222.500 222.500 222.500 225.000 227.500 227.500 230.000 232.500 232.500 235.000 237.500 245.000 250.000 262.500
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
54 60 63 69 0 78 78 0 84 87 90 105 105 102 102
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="286">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 136.25 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 162.5 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 188.75 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 215.655 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0
</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 0.36958724 0.43677086 0.5115453 0.59391904 0.6839965 0.781933 0.8879027 1.0020555 1.1243932 1.2547252 1.3926976 1.5376312 1.6884662 1.8438262 2.0019841 2.1608098 2.3180013 2.4710488 2.6173701 2.7545295 2.88016 2.9921925 3.0888145 3.1685119 3.2301147 3.2727096 3.2957141 3.3 3.29966 3.2949338 3.2849176 3.2699618 3.2504172 3.2266319 3.1989484 3.1677015 3.1332157 3.0958045 3.055769 3.0133965 2.9689603 2.922719 2.8749166 2.8257825 2.7755315 2.7243633 2.6724641 2.6200066 2.5671494 2.5140395 2.4608111 2.4075873 2.3544796 2.30159 2.2490098 2.1968224 2.1451015 2.0939133 2.0433164 1.9933628 1.9440976 1.8955605 1.8477854 1.8008009 1.7546316 1.7092974 1.6648144 1.6211953 1.5784494 1.5365831 1.4956002 1.4555022 1.4162881 1.3779554 1.3404995 1.3039144 1.2681928 1.233326 1.1993042 1.166117 1.1337527 1.1021993 1.071444 1.0414736 1.0122743 0.983832 0.95613253 0.9291612 0.9029033 0.8773442 0.85246885 0.8282624 0.80471003 0.7817968 0.7595082 0.7378293 0.71674585 0.6962434 0.6763078 0.656925 0.63808125 0.61976296 0.6019567 0.58464944 0.5678282 0.55148035 0.53559345 0.5201553 0.5051541 0.49057803 0.47641572 0.46265605 0.44928807 0.43630114 0.4236848 0.4114289 0.39952353 0.38795897 0.37672582 0.36581483 0.35521707 0.3449237 0.3349263 0.3252165 0.3157862 0.30662754 0.2977329 0.28909472 0.28070578 0.272559 0.26464748 0.25696456 0.24950373 0.24225861 0.23522305 0.2283911 0.22175688 0.21531473 0.20905916 0.20298482 0.1970865 0.19135912 0.18579778 0.1803977 0.17515424 0.17006287 0.16511922 0.16031902 0.15565813 0.15113252 0.1467383 0.14247167 0.13832892 0.13430649 0.13040088 0.12660873 0.12292673 0.1193517 0.11588055 0.112510264 0.10923792 0.10606067 0.10297577 0.09998053 0.09707236 0.09424873 0.09150718 0.088845335 0.086260885 0.083751574 0.08131523 0.07894972 0.076652996 0.07442307 0.07225798 0.07015586 0.06811488 0.06613325 0.06420926 0.062341224 0.060527522 0.058766574 0.057056848 0.05539685 0.05378514 0.052220315 0.050701004

</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="3.3" PeakHeight="215.655" Num="5" zHalfNm="205.099" Error="0.321">
-26.919 -0.001 -0.076 0.123 -0.032
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="8" 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="-2379.7988" C="0.4057838" Error="0.0371"/>
<QuasiParabolic ID="3" StartDistance="6532.5" EndDistance="6559.0" A="1.36171176E11" B="-4.1759932E7" C="3201.6868" Error="0.0729"/>
<QuasiParabolic ID="4" StartDistance="6559.0" EndDistance="6560.0" A="6.5220806E13" B="-1.98876611E10" C="1516077.2" Error="1.7E-9"/>
<QuasiParabolic ID="5" StartDistance="6560.0" EndDistance="6568.0" A="2.4415765E13" B="-7.4471004E9" C="567863.75" Error="0.131"/>
<QuasiParabolic ID="6" StartDistance="6568.0" EndDistance="6578.0" A="5.629633E13" B="-1.7154946E10" C="1306889.8" Error="0.0517"/>
<QuasiParabolic ID="7" StartDistance="6578.0" EndDistance="6585.655" A="-1.08646097E14" B="3.2994773E10" C="-2505037.8" Error="0.0119"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="78.75" Depth="0.154"/>
<TopsideChapman PeakHeight="215.655" PeakDensity="135111.66" PeakScaleHeight="10.583" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
