<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-16 -136 21:30:00.000"
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="20.0">
<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 F2o cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.16 (136) 21:30:00</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">
FF202613605162130001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.600" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.862" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.903" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.975" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.975" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.925" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.400" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="245.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.522" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.975" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.975" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="225.508" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="207.864" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="6.071" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="25.156" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.942" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="13.561" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="23.940" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.630" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="26">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
217.500 217.500 218.750 220.000 220.000 222.500 225.000 225.000 227.500 227.500 227.500 230.000 232.500 235.000 237.500 240.000 242.500 245.000 250.000 255.000 260.000 265.000 272.932 282.982 296.130 314.069
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
54 57 0 69 69 69 66 69 66 66 66 66 66 63 63 63 78 78 75 75 60 60 63 63 45 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-3.125 3.125 3.125 -3.125 -3.125 -3.125 3.125 -3.125 3.125 -3.125 3.125 3.125 3.125 -3.125 -3.125 -3.125 -3.125 3.125 -3.125 -3.125 -3.125 -3.125 3.125 -3.125 -3.125 -3.125
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="346">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
91.503 92.0 93.0 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 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 185.25 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 225.508 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.22628632 0.273764 0.3128615 0.3454245 0.37313297 0.39706582 0.41792884 0.43620992 0.45224318 0.46627203 0.47848293 0.48901162 0.4979634 0.50542057 0.5114466 0.5160882 0.51938003 0.5213463 0.522 0.52172095 0.52082276 0.51931053 0.5171938 0.5144865 0.5111466 0.50719905 0.5025564 0.4972594 0.49129844 0.48462018 0.47718975 0.4690438 0.46001256 0.45012128 0.43931672 0.4275638 0.41466933 0.4005252 0.38509196 0.36808276 0.34926838 0.32835606 0.30480894 0.27810088 0.268 0.268 0.268 0.268 0.268 0.268 0.268 0.268 0.268 0.268 0.268 0.268 0.268 0.268 0.268 0.268 0.268 0.268 0.268 0.268 0.268 0.268 0.268 0.268 0.268 0.268 0.268 0.27643853 0.2865648 0.29669103 0.30681726 0.31694353 0.32706976 0.33719602 0.34732226 0.35744852 0.36757475 0.37770098 0.38782725 0.39795348 0.40807974 0.41820598 0.42833224 0.43845847 0.4485847 0.45871097 0.4688372 0.47896346 0.4890897 0.49921596 0.5093422 0.5194684 0.522 0.5598668 0.6138865 0.6713661 0.731884 0.7951995 0.8612794 0.9302009 1.0021541 1.077371 1.1561646 1.2388458 1.3257463 1.4172044 1.5134944 1.6148332 1.7213373 1.8328484 1.9490389 2.0691276 2.1920674 2.3163486 2.4402752 2.5619884 2.6797657 2.7921271 2.8979187 2.9963596 3.087031 3.1697497 3.2445393 3.3115137 3.370896 3.422928 3.4678555 3.5059001 3.5372763 3.5621722 3.5807214 3.5930448 3.5992112 3.6 3.5995407 3.5958428 3.588588 3.5779583 3.5641353 3.5473008 3.5276356 3.5053174 3.4805222 3.4534209 3.4241815 3.3929665 3.3599339 3.3252363 3.2890203 3.2514274 3.2125926 3.1726453 3.1317086 3.0899005 3.0473316 3.0041082 2.9603295 2.9160903 2.8714788 2.8265786 2.781468 2.7362196 2.6909022 2.6455793 2.6003103 2.55515 2.5101495 2.4653554 2.4208114 2.3765574 2.3326294 2.289061 2.2458825 2.2031217 2.1608028 2.1189487 2.077579 2.036712 1.996363 1.9565461 1.9172729 1.8785539 1.8403978 1.8028117 1.7658017 1.729372 1.6935264 1.6582669 1.6235951 1.589511 1.5560145 1.5231041 1.4907779 1.4590331 1.4278666 1.3972744 1.3672523 1.3377955 1.3088989 1.2805568 1.2527633 1.2255123 1.1987973 1.1726117 1.1469485 1.1218007 1.097161 1.0730222 1.049377 1.0262175 1.0035361 0.9813255 0.9595778 0.93828523 0.9174402 0.89703494 0.8770617 0.8575129 0.83838075 0.8196578 0.8013364 0.78340906 0.76586837 0.748707 0.73191756 0.71549284 0.6994258 0.6837093 0.66833645 0.65330034 0.63859415 0.62421125 0.6101451 0.5963891 0.5829369 0.56978226 0.556919 0.54434097 0.5320422 0.52001685 0.5082591 0.49676335 0.48552394 0.47453544 0.46379244 0.45328972 0.44302207 0.4329844 0.4231718 0.4135793 0.40420213 0.39503565 0.3860752 0.37731633 0.36875454 0.36038557 0.35220513 0.3442091 0.33639342 0.32875404 0.32128713 0.3139888 0.30685535 0.29988313 0.29306853 0.28640804 0.2798982 0.2735357 0.26731724 0.26123956 0.25529954 0.24949409 0.2438202 0.23827492 0.23285535 0.22755869 0.22238214 0.21732304 0.21237873 0.20754662 0.20282419 0.19820896 0.19369853 0.18929051 0.18498261 0.18077257 0.17665817 0.17263724 0.1687077 0.16486745 0.16111447 0.15744682 0.15386254 0.15035973 0.14693658 0.14359127 0.14032204 0.13712716 0.13400494 0.13095374 0.12797195 0.12505798 0.12221032 0.11942744 0.116707884 0.11405021 0.11145301 0.10891492 0.10643458 0.1040107 0.10164198 0.099327184 0.09706507 0.094854444 0.09269414 0.09058302 0.08851995 0.086503856 0.084533654 0.08260831 0.0807268 0.078888126 0.07709132 0.07533543 0.073619515 0.07194267 0.07030401 0.06870266 0.067137785 0.06560854 0.064114116 0.06265373 0.061226595 0.059831962 0.05846909 0.05713726 0.055835757 0.0545639 0.053321004 0.052106418 0.050919496

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.522" PeakHeight="110.0" Num="3" Error="0.0">
-22.649 4.593 -0.441
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.522" EndFrequency="3.6" PeakHeight="225.508" Num="5" zHalfNm="207.864" Error="1.6">
-41.544 2.625 -2.185 1.097 -0.251
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="8" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6460.004" EndDistance="6480.001" A="-1.19421954E12" B="3.68586304E8" C="-28440.027" Error="0.0144"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6505.083" A="-5.655688E11" B="1.74558256E8" C="-13468.7295" Error="0.0056"/>
<QuasiParabolic ID="2" StartDistance="6505.083" EndDistance="6530.167" A="0.0" B="6439.9126" C="-0.917755" Error="0.0473"/>
<QuasiParabolic ID="3" StartDistance="6530.167" EndDistance="6552.0" A="7.8263484E10" B="-2.4264572E7" C="1880.5195" Error="0.0473"/>
<QuasiParabolic ID="4" StartDistance="6552.0" EndDistance="6553.0" A="-5.1128817E12" B="1.56033408E9" C="-119044.29" Error="0.0"/>
<QuasiParabolic ID="5" StartDistance="6553.0" EndDistance="6565.0" A="1.34771796E13" B="-4.11342182E9" C="313868.56" Error="0.0403"/>
<QuasiParabolic ID="6" StartDistance="6565.0" EndDistance="6580.0" A="3.10730901E13" B="-9.4739425E9" C="722133.7" Error="0.017"/>
<QuasiParabolic ID="7" StartDistance="6580.0" EndDistance="6595.508" A="-4.0906011E13" B="1.24042035E10" C="-940339.44" Error="0.00761"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="75.25" Depth="0.254"/>
<TopsideChapman PeakHeight="225.508" PeakDensity="160794.05" PeakScaleHeight="13.561" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
