<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-10 -130 02:05:00.000"
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: Multiple candidates for F2x cusp, Multiple candidates for F2o cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.10 (130) 02:05:00</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">
FF202613005100205001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.800" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.820" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="14.516" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.925" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.925" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.225" 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="3.650" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="258.519" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.925" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.925" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="232.427" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="213.801" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.145" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="26.594" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.084" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.401" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="23.870" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.170" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="36">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 3.55 3.575 3.6 3.625 3.65 3.675 3.7 3.725 3.75 3.775 3.8
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
222.500 222.500 222.500 222.500 225.000 225.000 225.000 225.000 227.500 227.500 227.500 228.750 230.000 232.500 232.500 232.500 235.000 237.500 237.500 240.000 242.500 242.500 242.500 243.854 245.406 247.203 249.306 251.803 254.815 258.519 263.186 269.246 277.432 289.104 307.088 338.401
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
57 66 69 72 81 81 90 93 93 99 99 93 105 102 105 96 102 99 63 0 93 96 81 78 81 84 81 72 72 66 87 90 69 66 66 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 -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="367">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 136.25 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 162.5 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 188.75 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 232.427 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0
</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 0.36256427 0.400788 0.4452258 0.49505904 0.5492076 0.6067225 0.6670691 0.7300757 0.7958086 0.86452323 0.9366157 1.012541 1.0928439 1.178186 1.269239 1.3667645 1.4715775 1.5844173 1.7058864 1.8362252 1.9749923 2.120885 2.2713842 2.4230423 2.572029 2.7148452 2.8489497 2.9728231 3.085939 3.1883802 3.2806048 3.3632185 3.4368908 3.5023031 3.5600293 3.6105967 3.6544738 3.6920455 3.7236333 3.749516 3.769905 3.7849636 3.7948146 3.7995365 3.8 3.7994175 3.795674 3.7886 3.7783546 3.765099 3.748993 3.7301962 3.7088666 3.685159 3.6592264 3.6312182 3.6012797 3.569553 3.536175 3.501279 3.464993 3.4274402 3.388739 3.3490036 3.308342 3.2668579 3.22465 3.1818118 3.138433 3.0945973 3.050385 3.0058708 2.9611259 2.9162166 2.871206 2.8261523 2.7811105 2.736132 2.691264 2.646551 2.6020343 2.557752 2.5137386 2.4700274 2.4266477 2.3836267 2.3409894 2.2987583 2.256954 2.2155948 2.1746976 2.1342773 2.0943468 2.0549178 2.0160003 1.9776033 1.9397341 1.902399 1.865603 1.8293501 1.7936436 1.7584856 1.7238773 1.6898193 1.6563114 1.6233526 1.5909417 1.5590763 1.5277538 1.4969715 1.4667255 1.437012 1.4078267 1.3791649 1.3510218 1.323392 1.2962704 1.2696509 1.2435279 1.2178953 1.1927469 1.1680764 1.1438773 1.1201432 1.0968673 1.0740432 1.0516639 1.0297228 1.008213 0.98712796 0.96646065 0.9462043 0.92635214 0.90689737 0.8878333 0.8691532 0.8508504 0.8329183 0.8153503 0.79813987 0.7812806 0.76476604 0.7485899 0.73274595 0.71722794 0.70202976 0.6871454 0.672569 0.6582945 0.6443162 0.63062835 0.61722535 0.60410166 0.59125173 0.57867026 0.56635195 0.5542915 0.54248387 0.530924 0.51960695 0.5085278 0.49768174 0.48706412 0.4766703 0.4664957 0.45653588 0.44678646 0.43724316 0.42790172 0.41875798 0.40980792 0.40104753 0.39247286 0.38408014 0.37586552 0.36782536 0.35995603 0.3522539 0.3447156 0.33733764 0.3301167 0.32304946 0.31613272 0.30936337 0.30273825 0.29625434 0.2899087 0.2836984 0.2776206 0.27167252 0.2658514 0.26015458 0.2545794 0.2491233 0.24378379 0.23855837 0.23344465 0.22844024 0.22354282 0.21875015 0.21405998 0.20947014 0.2049785 0.20058297 0.1962815 0.1920721 0.18795282 0.18392171 0.17997691 0.1761166 0.17233895 0.16864221 0.16502465 0.1614846 0.15802038 0.15463038 0.15131302 0.14806674 0.14489006 0.14178143 0.13873944 0.13576266 0.13284968 0.12999916 0.12720974 0.12448013 0.12180904 0.11919523 0.11663747 0.11413455 0.11168531 0.109288596 0.10694329 0.10464828 0.102402486 0.10020487 0.098054394 0.095950045 0.09389084 0.0918758 0.089903995 0.08797449 0.08608638 0.08423877 0.08243081 0.08066163 0.078930415 0.07723635 0.07557862 0.073956475 0.07236913 0.07081585 0.06929589 0.067808546 0.06635313 0.064928934 0.06353531 0.062171586 0.06083713 0.059531312 0.058253516 0.057003144 0.055779606 0.054582324 0.05341074 0.052264296 0.05114246 0.0500447

</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="3.8" PeakHeight="232.427" Num="5" zHalfNm="213.801" Error="1.548">
-46.825 5.77 -4.145 2.17 -0.647
</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="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="295.15182" C="-0.0053517316" Error="0.00424"/>
<QuasiParabolic ID="3" StartDistance="6532.5" EndDistance="6555.0" A="5.9651138E10" B="-1.8365844E7" C="1413.6493" Error="0.0043"/>
<QuasiParabolic ID="4" StartDistance="6555.0" EndDistance="6557.0" A="-1.59641108E12" B="4.86916288E8" C="-37128.086" Error="0.00668"/>
<QuasiParabolic ID="5" StartDistance="6557.0" EndDistance="6569.0" A="9.788803E12" B="-2.98577382E9" C="227679.77" Error="0.0393"/>
<QuasiParabolic ID="6" StartDistance="6569.0" EndDistance="6575.0" A="2.75785009E13" B="-8.4020316E9" C="639938.7" Error="0.00767"/>
<QuasiParabolic ID="7" StartDistance="6575.0" EndDistance="6583.0" A="5.9138621E13" B="-1.80020675E10" C="1369979.5" Error="0.00571"/>
<QuasiParabolic ID="8" StartDistance="6583.0" EndDistance="6602.427" A="-3.914658E13" B="1.18582395E10" C="-898006.8" Error="0.00605"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="78.75" Depth="0.154"/>
<TopsideChapman PeakHeight="232.427" PeakDensity="179156.33" PeakScaleHeight="14.401" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
