<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-15 -135 02:55:00.000"
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 44 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 45% PACIFIC flags: F2o cusp not found, Multiple candidates for F2x cusp, One of F2 cusps was derived from the other, F2O model cusp does not fit trace</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.15 (135) 02:55:00</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">
FF202613505150255001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.150" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.508" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.049" 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="3.450" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="292.503" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="292.503" 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="0.025" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.000" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="295.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" 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="273.819" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="253.254" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.838" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="29.447" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.828" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="15.553" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="29.370" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.140" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="8">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.975 3.0 3.025 3.05 3.075 3.1 3.125 3.15
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
292.503 295.000 300.000 305.000 312.500 325.000 342.500 382.617
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 0 0 0 0 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-1.5625 -7.8125 -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="416">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 147.56067 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 185.12134 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 222.682 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 273.819 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0
</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 0.35369936 0.35321155 0.35265046 0.35186782 0.3509409 0.34987223 0.3485916 0.34710422 0.34548807 0.3436766 0.3416772 0.33949807 0.33714813 0.3345699 0.33184302 0.32884952 0.3256723 0.322328 0.31871432 0.31485957 0.31073743 0.30643877 0.30183923 0.29701582 0.29185236 0.28633586 0.28056043 0.27446336 0.26795506 0.26108655 0.25377885 0.24603239 0.23780589 0.22898206 0.21955723 0.20951124 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 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.20360257 0.20770259 0.21180263 0.21590267 0.2200027 0.22410274 0.22820276 0.2323028 0.23640284 0.24050286 0.2446029 0.24870293 0.25280297 0.256903 0.26100305 0.26510307 0.2692031 0.27330315 0.27740318 0.2815032 0.28560323 0.28970328 0.2938033 0.29790333 0.30200338 0.3061034 0.31020343 0.3143035 0.3184035 0.32250354 0.32660356 0.33070362 0.33480364 0.33890367 0.34300372 0.34710374 0.35120377 0.354 0.36326867 0.3942248 0.42787513 0.46414673 0.502937 0.544156 0.5877153 0.6335374 0.6815639 0.731753 0.784095 0.8385802 0.8951877 0.9539182 1.0147716 1.0777344 1.142793 1.209898 1.2789928 1.3500235 1.4228756 1.4974174 1.5734953 1.6509061 1.7294338 1.8088117 1.8887578 1.968952 2.049048 2.1286929 2.2075162 2.2851458 2.361198 2.4353046 2.5071275 2.5763233 2.6425881 2.705643 2.7652016 2.8210518 2.872992 2.9208395 2.9644434 3.003658 3.0383856 3.0685306 3.0940197 3.1147866 3.1307921 3.1419964 3.1483767 3.15 3.1499584 3.1482544 3.1441293 3.1376874 3.1290343 3.1182756 3.1055171 3.090863 3.074417 3.0562816 3.036557 3.015342 2.9927328 2.9688232 2.9437046 2.9174657 2.8901925 2.8619676 2.8328712 2.8029804 2.772369 2.7411077 2.709265 2.6769054 2.6440911 2.610881 2.5773313 2.5434954 2.509424 2.4751647 2.4407628 2.4062612 2.3717003 2.337118 2.3025494 2.2680285 2.2335865 2.1992526 2.1650538 2.1310158 2.0971622 2.063515 2.030094 1.9969183 1.9640051 1.9313701 1.899028 1.8669915 1.835273 1.8038832 1.7728319 1.7421278 1.7117788 1.6817915 1.6521722 1.622926 1.5940572 1.5655698 1.5374668 1.5097505 1.4824228 1.4554851 1.4289383 1.4027824 1.3770175 1.3516432 1.3266582 1.3020617 1.2778517 1.2540264 1.2305838 1.2075212 1.1848361 1.1625257 1.1405865 1.1190157 1.0978094 1.0769645 1.0564768 1.0363429 1.0165585 0.9971197 0.9780224 0.9592623 0.94083524 0.9227369 0.9049628 0.88750863 0.87037 0.8535423 0.8370213 0.82080233 0.804881 0.78925276 0.7739132 0.7588579 0.74408233 0.72958213 0.7153529 0.70139015 0.68768966 0.6742471 0.66105807 0.64811844 0.635424 0.6229706 0.61075395 0.59877014 0.58701515 0.5754848 0.56417537 0.5530828 0.54220337 0.5315331 0.52106845 0.5108056 0.50074095 0.4908709 0.48119187 0.4717004 0.46239305 0.4532664 0.44431716 0.43554202 0.42693773 0.41850114 0.4102291 0.4021185 0.39416635 0.38636965 0.37872547 0.3712309 0.36388317 0.3566794 0.34961694 0.34269306 0.33590513 0.3292505 0.32272667 0.31633112 0.3100614 0.30391502 0.29788968 0.291983 0.28619274 0.2805166 0.27495238 0.26949793 0.2641511 0.25890982 0.25377202 0.24873568 0.24379885 0.23895958 0.23421597 0.22956614 0.22500826 0.22054055 0.21616124 0.21186858 0.2076609 0.20353651 0.19949378 0.19553113 0.19164696 0.18783976 0.18410799 0.18045017 0.17686485 0.1733506 0.16990604 0.16652976 0.16322045 0.15997677 0.15679744 0.15368116 0.15062673 0.1476329 0.14469847 0.1418223 0.1390032 0.13624007 0.13353178 0.13087726 0.12827544 0.12572528 0.12322577 0.12077589 0.118374676 0.11602114 0.11371436 0.1114534 0.10923735 0.10706533 0.10493645 0.10284988 0.10080475 0.09880027 0.09683562 0.09491001 0.09302267 0.09117283 0.08935975 0.087582715 0.08584099 0.08413389 0.08246072 0.08082081 0.07921349 0.07763813 0.076094076 0.07458072 0.07309745 0.07164367 0.070218794 0.06882224 0.06745346 0.06611189 0.064797 0.06350824 0.062245116 0.061007105 0.05979371 0.05860444 0.05743882 0.05629638 0.055176657 0.054079197 0.053003564 0.05194932 0.05091604

</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="3.15" PeakHeight="273.819" Num="5" zHalfNm="253.254" Error="0.651">
-51.549 0.771 -0.549 0.329 -0.139
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="10" 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="6517.561" A="-1.07815133E11" B="3.3276276E7" C="-2567.4885" Error="0.00176"/>
<QuasiParabolic ID="2" StartDistance="6517.561" EndDistance="6555.121" A="0.0" B="-1019.417" C="0.19644944" Error="0.0234"/>
<QuasiParabolic ID="3" StartDistance="6555.121" EndDistance="6589.0" A="4.3488702E10" B="-1.3328816E7" C="1021.30457" Error="0.0234"/>
<QuasiParabolic ID="4" StartDistance="6589.0" EndDistance="6591.0" A="-8.3079502E11" B="2.52047936E8" C="-19116.559" Error="0.00191"/>
<QuasiParabolic ID="5" StartDistance="6591.0" EndDistance="6596.0" A="6.801886E12" B="-2.06404403E9" C="156584.55" Error="0.0295"/>
<QuasiParabolic ID="6" StartDistance="6596.0" EndDistance="6599.0" A="3.6932514E12" B="-1.12146227E9" C="85133.54" Error="0.00457"/>
<QuasiParabolic ID="7" StartDistance="6599.0" EndDistance="6611.0" A="9.7544097E12" B="-2.9584553E9" C="224320.77" Error="0.0317"/>
<QuasiParabolic ID="8" StartDistance="6611.0" EndDistance="6629.0" A="1.2767453E13" B="-3.86997965E9" C="293260.72" Error="0.0399"/>
<QuasiParabolic ID="9" StartDistance="6629.0" EndDistance="6643.819" A="-2.67177941E13" B="8.0429025E9" C="-605282.2" Error="0.0123"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="112.682" Depth="0.154"/>
<TopsideChapman PeakHeight="273.819" PeakDensity="123107.94" PeakScaleHeight="15.553" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
