<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-19 -139 22:35:00.000"
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 F2o cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.19 (139) 22:35:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.22" 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">
FF202613905192235001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.750" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.685" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.819" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.025" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.025" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.075" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="235.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="235.000" 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="3.550" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="268.130" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.025" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.025" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="244.035" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="225.820" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="4.766" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="26.127" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.029" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="13.814" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="25.550" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.270" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="30">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
235.000 237.500 237.500 237.500 240.000 240.000 242.500 245.000 245.000 247.500 247.500 250.000 252.500 252.500 255.000 256.277 257.698 259.288 261.079 263.112 265.439 268.130 271.277 275.007 279.497 285.007 291.928 300.885 312.926 329.979
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
90 87 90 87 90 90 90 87 90 90 93 90 84 87 87 87 87 87 78 75 78 75 75 75 72 72 81 81 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="368">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 139.16667 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 168.33333 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 197.5 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 244.035 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0
</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 0.35175505 0.3505324 0.3489521 0.3470975 0.34497866 0.3425364 0.33978727 0.33674988 0.3333779 0.32963315 0.32561377 0.321167 0.3164043 0.31120363 0.30563802 0.29957724 0.29311055 0.28615454 0.27862445 0.27052397 0.26174292 0.2523066 0.24211602 0.23105234 0.21895285 0.20588575 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 0.20352 0.2088 0.21408 0.21936 0.22464 0.22992 0.2352 0.24048 0.24576 0.25104 0.25632 0.2616 0.26688 0.27216 0.27744 0.28272 0.288 0.29328 0.29856 0.30384 0.30912 0.3144 0.31968 0.32496 0.33024 0.33552 0.3408 0.34608 0.35136 0.354 0.3737106 0.4144421 0.4570807 0.50181216 0.54883546 0.59832853 0.650507 0.70556957 0.7637304 0.8251887 0.8901798 0.95888686 1.0315224 1.108241 1.1892138 1.2745329 1.3642429 1.4583284 1.5566589 1.6590366 1.7651386 1.8744882 1.9865279 2.100539 2.2157617 2.3313632 2.4464371 2.560113 2.6715195 2.7798843 2.884481 2.9846675 3.0799136 3.1697478 3.2538073 3.3317916 3.403467 3.468664 3.5272355 3.579079 3.6241302 3.662343 3.693684 3.7181332 3.7356694 3.746293 3.7499928 3.75 3.748239 3.7428117 3.7338934 3.7216635 3.706301 3.6879852 3.6668928 3.6431985 3.6170743 3.5886877 3.5582025 3.5257778 3.491568 3.4557219 3.4183831 3.3796892 3.3397727 3.29876 3.2567713 3.2139223 3.1703212 3.1260722 3.081273 3.036016 2.9903884 2.944472 2.8983443 2.852077 2.8057377 2.7593894 2.7130907 2.6668963 2.6208565 2.5750184 2.529425 2.4841158 2.439128 2.3944943 2.3502455 2.3064094 2.263011 2.2200732 2.1776161 2.135658 2.094215 2.0533013 2.0129294 1.9731102 1.9338526 1.8951643 1.8570517 1.81952 1.7825729 1.7462133 1.710443 1.6752628 1.6406726 1.6066717 1.5732584 1.5404305 1.5081854 1.4765192 1.4454284 1.4149083 1.3849541 1.3555607 1.3267224 1.2984334 1.2706875 1.2434783 1.2167991 1.1906433 1.1650037 1.1398733 1.1152446 1.0911106 1.0674638 1.0442965 1.0216012 0.9993705 0.97759676 0.9562722 0.93538934 0.9149406 0.8949184 0.8753151 0.8561233 0.8373356 0.8189445 0.80094266 0.7833229 0.76607794 0.74920064 0.73268396 0.716521 0.7007048 0.68522865 0.6700857 0.6552695 0.6407734 0.626591 0.6127161 0.59914225 0.5858635 0.57287365 0.5601669 0.5477373 0.5355792 0.52368695 0.512055 0.50067776 0.48955008 0.4786666 0.4680222 0.4576118 0.44743043 0.43747324 0.42773545 0.41821232 0.4088993 0.3997919 0.39088565 0.38217622 0.3736594 0.365331 0.35718694 0.34922326 0.34143597 0.33382133 0.3263755 0.31909487 0.31197578 0.3050147 0.2982082 0.29155293 0.2850455 0.27868274 0.27246144 0.26637846 0.2604308 0.25461552 0.24892962 0.2433703 0.23793475 0.23262025 0.22742413 0.22234377 0.2173766 0.21252014 0.20777191 0.20312954 0.1985907 0.19415304 0.18981437 0.18557248 0.1814252 0.17737046 0.1734062 0.16953039 0.16574109 0.16203637 0.15841435 0.15487318 0.15141107 0.14802627 0.14471705 0.14148174 0.13831867 0.13522626 0.13220291 0.1292471 0.12635732 0.1235321 0.12077 0.11806961 0.11542956 0.1128485 0.11032511 0.10785812 0.10544626 0.1030883 0.100783035 0.0985293 0.096325934 0.09417182 0.092065856 0.09000697 0.0879941 0.08602624 0.084102355 0.08222149 0.080382675 0.07858497 0.07682745 0.07510923 0.07342942 0.07178718 0.070181645 0.06861202 0.06707749 0.06557727 0.06411059 0.06267671 0.0612749 0.059904434 0.05856461 0.05725475 0.05597418 0.05472225 0.053498313 0.05230175 0.051131945

</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="3.75" PeakHeight="244.035" Num="5" zHalfNm="225.82" Error="1.239">
-47.164 1.335 -1.306 0.684 -0.084
</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="6509.167" A="-1.78385355E11" B="5.5057208E7" C="-4248.116" Error="0.00152"/>
<QuasiParabolic ID="2" StartDistance="6509.167" EndDistance="6538.333" A="0.0" B="1601.8597" C="-0.20607549" Error="0.027"/>
<QuasiParabolic ID="3" StartDistance="6538.333" EndDistance="6566.0" A="3.09866025E10" B="-9583929.0" C="741.00885" Error="0.027"/>
<QuasiParabolic ID="4" StartDistance="6566.0" EndDistance="6567.0" A="6.9413686E12" B="-2.11448243E9" C="161028.75" Error="0.0"/>
<QuasiParabolic ID="5" StartDistance="6567.0" EndDistance="6578.0" A="8.3334361E12" B="-2.53844096E9" C="193308.2" Error="0.0443"/>
<QuasiParabolic ID="6" StartDistance="6578.0" EndDistance="6600.0" A="2.41388948E13" B="-7.3439928E9" C="558582.75" Error="0.0339"/>
<QuasiParabolic ID="7" StartDistance="6600.0" EndDistance="6614.035" A="-4.5372244E13" B="1.37199882E10" C="-1037173.44" Error="0.012"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="87.5" Depth="0.154"/>
<TopsideChapman PeakHeight="244.035" PeakDensity="174472.7" PeakScaleHeight="13.814" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
