<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-02 -122 01:00:00.000"
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 22 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 80% PACIFIC flags: Unidentified traces above foF2</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.02 (122) 01:00:00</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="75.82641" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202612205020100001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.650" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.753" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.697" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.075" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.075" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.050" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="237.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="237.500" 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="0.125" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.500" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="265.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.075" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.075" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="239.807" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="224.474" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.595" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="22.039" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.826" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="11.563" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="22.100" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.040" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="24">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
237.500 237.500 238.750 240.000 241.250 242.500 245.000 247.500 247.500 247.500 250.000 250.000 252.500 255.000 257.500 260.000 262.500 265.000 270.000 275.000 280.106 285.872 292.435 299.972
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 108 0 0 0 0 0 0 96 0 0 0 0 0 0 96 96 96 0 81 0 0 0 0
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="329">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 139.75 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 169.5 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 199.25 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 239.807 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0
</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 0.3538872 0.35347393 0.352762 0.35182965 0.3506064 0.3491724 0.34738788 0.34533682 0.34299496 0.34037665 0.33746356 0.3342082 0.33063674 0.3267138 0.32253745 0.31796023 0.31297803 0.30765462 0.30189866 0.29567927 0.28909197 0.28191414 0.2741947 0.26597098 0.25704813 0.24743798 0.23701459 0.22570056 0.21345264 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 0.2 0.2 0.2 0.2 0.20258823 0.2077647 0.21294117 0.21811765 0.22329412 0.2284706 0.23364706 0.23882353 0.244 0.24917647 0.25435293 0.2595294 0.2647059 0.26988235 0.27505884 0.2802353 0.28541178 0.29058823 0.2957647 0.30094117 0.30611765 0.3112941 0.3164706 0.32164705 0.32682353 0.332 0.33717647 0.34235293 0.3475294 0.3527059 0.354 0.3890919 0.43717012 0.48737058 0.540213 0.5960991 0.6553728 0.71832824 0.78523874 0.85631573 0.9317677 1.0117352 1.0963147 1.1855471 1.2793893 1.3777428 1.4804236 1.5871378 1.6975269 1.8111551 1.9274577 2.0458143 2.1655357 2.2858586 2.4060245 2.5251336 2.6423645 2.7568336 2.8676617 2.974025 3.0750458 3.1699884 3.2580862 3.3386266 3.4109871 3.4746063 3.5289671 3.5736601 3.608317 3.6326745 3.6465378 3.65 3.6499012 3.646288 3.6376915 3.6244085 3.6067367 3.5849729 3.5594099 3.5303366 3.4980342 3.4627767 3.4248283 3.3844445 3.341869 3.2973359 3.2510672 3.2032735 3.1541545 3.103898 3.052681 3.0006683 2.948015 2.8948653 2.8413532 2.7876024 2.7337282 2.6798358 2.6260226 2.5723774 2.5189817 2.465909 2.4132268 2.3609953 2.3092692 2.2580972 2.2075229 2.1575844 2.1083162 2.0597472 2.0119033 1.9648064 1.918475 1.8729244 1.8281672 1.784213 1.7410691 1.6987407 1.657231 1.616541 1.5766703 1.537617 1.4993776 1.4619474 1.4253209 1.389491 1.3544502 1.32019 1.2867011 1.253974 1.221998 1.1907625 1.1602564 1.1304679 1.1013854 1.0729965 1.0452893 1.0182513 0.99186987 0.9661325 0.94102657 0.9165395 0.89265865 0.8693714 0.8466653 0.8245279 0.8029469 0.78191 0.76140517 0.74142045 0.721944 0.7029641 0.68446946 0.6664486 0.64889044 0.63178396 0.61511844 0.59888333 0.5830682 0.5676628 0.5526572 0.5380416 0.52380633 0.509942 0.4964394 0.48328948 0.47048342 0.45801258 0.44586852 0.43404293 0.4225278 0.41131514 0.4003973 0.38976672 0.37941605 0.36933812 0.35952586 0.3499725 0.34067124 0.33161566 0.32279935 0.3142161 0.30585986 0.29772472 0.28980494 0.28209484 0.274589 0.26728204 0.2601688 0.25324413 0.24650316 0.23994103 0.23355304 0.22733462 0.2212813 0.21538875 0.2096527 0.20406908 0.1986338 0.193343 0.18819283 0.18317959 0.17829965 0.17354949 0.16892569 0.16442487 0.1600438 0.1557793 0.1516283 0.14758776 0.14365476 0.13982646 0.13610007 0.13247289 0.12894228 0.1255057 0.12216062 0.11890463 0.11573535 0.11265049 0.109647796 0.10672509 0.103880234 0.10111117 0.09841588 0.095792405 0.09323882 0.09075329 0.08833397 0.085979134 0.08368704 0.08145603 0.079284474 0.07717079 0.07511344 0.07311092 0.07116177 0.069264576 0.06741794 0.065620534 0.06387103 0.062168162 0.060510688 0.05889739 0.0573271 0.055798665 0.054310977 0.052862946 0.05145352 0.050081663

</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="3.65" PeakHeight="239.807" Num="5" zHalfNm="224.474" Error="0.859">
-40.215 -0.456 -0.099 0.187 0.026
</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="6509.75" A="-1.71482022E11" B="5.2926548E7" C="-4083.7134" Error="0.00152"/>
<QuasiParabolic ID="2" StartDistance="6509.75" EndDistance="6539.5" A="0.0" B="2155.479" C="-0.29109257" Error="0.0371"/>
<QuasiParabolic ID="3" StartDistance="6539.5" EndDistance="6568.0" A="1.89145702E10" B="-5894729.0" C="459.15182" Error="0.0371"/>
<QuasiParabolic ID="4" StartDistance="6568.0" EndDistance="6580.0" A="1.1337835E13" B="-3.45258189E9" C="262843.97" Error="0.0382"/>
<QuasiParabolic ID="5" StartDistance="6580.0" EndDistance="6591.0" A="3.15770945E13" B="-9.6043325E9" C="730302.25" Error="0.0077"/>
<QuasiParabolic ID="6" StartDistance="6591.0" EndDistance="6596.0" A="2.44599415E13" B="-7.4446746E9" C="566468.4" Error="0.0025"/>
<QuasiParabolic ID="7" StartDistance="6596.0" EndDistance="6603.0" A="-1.92350928E13" B="5.8042752E9" C="-437848.6" Error="0.00424"/>
<QuasiParabolic ID="8" StartDistance="6603.0" EndDistance="6609.807" A="-7.0185881E13" B="2.12368916E10" C="-1606455.1" Error="0.00168"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="89.25" Depth="0.154"/>
<TopsideChapman PeakHeight="239.807" PeakDensity="165291.56" PeakScaleHeight="11.563" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
