<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-16 -106 07:25:00.000"
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: 90% PACIFIC flags: One of F2 cusps was derived from the other</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.16 (106) 07:25:00</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">
FF202610604160725001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.850" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.860" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.001" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.075" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.075" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.175" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="217.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="217.500" 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="2.675" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="242.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.075" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.075" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="225.162" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="207.544" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.829" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="25.186" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.586" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="13.640" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="22.900" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.070" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="32">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.075 2.1 2.125 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
217.500 217.500 218.125 218.750 219.375 220.000 220.000 220.000 222.500 222.500 223.750 225.000 226.250 227.500 228.750 230.000 230.000 232.500 232.500 235.000 235.000 235.000 240.000 242.500 242.500 247.500 252.500 255.000 260.000 267.357 277.641 293.034
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 66 0 0 0 81 69 66 54 54 0 0 0 0 0 66 72 69 72 72 72 75 69 69 72 72 66 66 0 54 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 -1.5625 -1.5625 -1.5625 1.5625 -4.6875 -1.5625 -1.5625 4.6875
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="335">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 135.08333 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 160.16667 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 185.25 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 225.162 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0
</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 0.35324875 0.35231337 0.35101187 0.34927908 0.3471288 0.34465033 0.34171918 0.33843222 0.33468077 0.33043912 0.32582152 0.32063016 0.31500506 0.30879995 0.30202654 0.29470333 0.28661102 0.27785686 0.26831484 0.25787413 0.24648583 0.23391104 0.2201678 0.20492378 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 0.20511627 0.21125582 0.21739535 0.22353488 0.22967441 0.23581396 0.24195349 0.24809302 0.25423256 0.2603721 0.26651162 0.27265117 0.2787907 0.28493023 0.29106978 0.2972093 0.30334884 0.3094884 0.3156279 0.32176745 0.32790697 0.3340465 0.34018606 0.34632558 0.35246512 0.354 0.37667066 0.41260386 0.45538363 0.5043732 0.5581767 0.6153971 0.6751356 0.7370271 0.80105853 0.86746407 0.9365878 1.0088196 1.0846318 1.1645011 1.2488455 1.3380456 1.4322889 1.5314742 1.6350473 1.7418674 1.8501849 1.9578158 2.0624094 2.161928 2.2548454 2.3403008 2.4179347 2.4878051 2.550201 2.6055167 2.6542075 2.6966786 2.7333338 2.7645226 2.7905352 2.8116186 2.82797 2.839742 2.8470442 2.8499427 2.85 2.848963 2.8450894 2.8384802 2.829277 2.817621 2.8036535 2.7875147 2.7693422 2.7492719 2.727436 2.7039645 2.6789823 2.6526113 2.624969 2.5961685 2.5663185 2.5355227 2.5038807 2.4714875 2.4384332 2.4048035 2.3706791 2.336137 2.3012497 2.2660851 2.2307072 2.195176 2.1595476 2.1238747 2.088206 2.0525873 2.0170605 1.9816647 1.9464362 1.9114081 1.876611 1.842073 1.8078196 1.7738743 1.740258 1.7069899 1.6740872 1.6415653 1.6094378 1.5777168 1.5464128 1.5155352 1.4850919 1.4550893 1.4255333 1.3964281 1.3677773 1.3395836 1.3118488 1.2845737 1.2577585 1.2314031 1.2055063 1.1800667 1.155082 1.1305499 1.1064671 1.0828307 1.0596365 1.0368809 1.0145591 0.992667 0.9711996 0.95015186 0.9295186 0.9092945 0.88947403 0.8700517 0.85102165 0.8323782 0.81411546 0.7962276 0.7787085 0.76155233 0.744753 0.72830456 0.712201 0.6964363 0.68100446 0.6658996 0.6511157 0.6366469 0.6224875 0.60863155 0.5950734 0.58180726 0.56882757 0.5561288 0.5437054 0.5315519 0.51966304 0.5080335 0.49665803 0.4855315 0.47464886 0.46400514 0.4535954 0.4434148 0.43345863 0.42372218 0.41420087 0.40489018 0.39578566 0.386883 0.37817785 0.36966604 0.36134344 0.35320604 0.34524983 0.3374709 0.32986543 0.32242972 0.31516004 0.3080528 0.3011045 0.2943116 0.2876708 0.28117868 0.2748321 0.26862776 0.2625626 0.25663352 0.25083756 0.24517174 0.23963323 0.2342192 0.22892687 0.22375357 0.21869667 0.21375355 0.20892172 0.20419867 0.19958201 0.19506934 0.19065838 0.18634683 0.18213248 0.17801316 0.17398673 0.17005116 0.16620435 0.16244437 0.15876924 0.15517707 0.151666 0.14823422 0.14487992 0.1416014 0.13839693 0.13526486 0.13220355 0.12921141 0.12628691 0.12342849 0.12063469 0.11790404 0.11523513 0.11262656 0.11007697 0.10758504 0.10514946 0.10276897 0.10044232 0.09816829 0.09594571 0.0937734 0.09165025 0.08957512 0.08754695 0.085564665 0.08362724 0.08173365 0.07988292 0.07807407 0.07630616 0.074578255 0.07288946 0.07123889 0.06962568 0.068048984 0.06650798 0.06500186 0.063529834 0.06209113 0.060684998 0.059310697 0.05796751 0.056654733 0.05537168 0.054117672 0.05289206 0.051694196 0.050523452

</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="2.85" PeakHeight="225.162" Num="5" zHalfNm="207.544" Error="0.968">
-42.368 4.551 -3.057 1.562 -0.6
</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="6505.083" A="-2.40913678E11" B="7.4356072E7" C="-5737.226" Error="0.00142"/>
<QuasiParabolic ID="2" StartDistance="6505.083" EndDistance="6530.167" A="0.0" B="2657.5342" C="-0.368519" Error="0.0389"/>
<QuasiParabolic ID="3" StartDistance="6530.167" EndDistance="6555.0" A="5.9777159E10" B="-1.8432146E7" C="1420.8513" Error="0.0517"/>
<QuasiParabolic ID="4" StartDistance="6555.0" EndDistance="6564.0" A="1.07139626E13" B="-3.2691369E9" C="249376.98" Error="0.0536"/>
<QuasiParabolic ID="5" StartDistance="6564.0" EndDistance="6568.0" A="1.21427303E13" B="-3.70447155E9" C="282537.75" Error="0.00656"/>
<QuasiParabolic ID="6" StartDistance="6568.0" EndDistance="6578.0" A="2.73543783E13" B="-8.3365202E9" C="635160.25" Error="0.00678"/>
<QuasiParabolic ID="7" StartDistance="6578.0" EndDistance="6595.162" A="-2.4762355E13" B="7.5092485E9" C="-569291.7" Error="0.00342"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="75.25" Depth="0.154"/>
<TopsideChapman PeakHeight="225.162" PeakDensity="100775.44" PeakScaleHeight="13.64" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
