<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-02-21 -052 05:25:00.000"
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 22 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 70% PACIFIC flags: Multiple candidates for F2x cusp, Multiple candidates for F2o cusp, Unidentified traces above foF2</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.02.21 (052) 05:25:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.16" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.96" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="85.88234" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202605202210525001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="7.675" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.938" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="30.225" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.250" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.250" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="8.075" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="232.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="232.500" 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="0.125" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="7.600" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="258.041" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.250" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.250" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="242.605" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="235.062" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="4.091" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="11.726" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="2.962" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="10.583" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="16.580" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.070" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="218">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 2.875 2.9 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 3.825 3.85 3.875 3.9 3.925 3.95 3.975 4.0 4.025 4.05 4.075 4.1 4.125 4.15 4.175 4.2 4.225 4.25 4.275 4.3 4.325 4.35 4.375 4.4 4.425 4.45 4.475 4.5 4.525 4.55 4.575 4.6 4.625 4.65 4.675 4.7 4.725 4.75 4.775 4.8 4.825 4.85 4.875 4.9 4.925 4.95 4.975 5.0 5.025 5.05 5.075 5.1 5.125 5.15 5.175 5.2 5.225 5.25 5.275 5.3 5.325 5.35 5.375 5.4 5.425 5.45 5.475 5.5 5.525 5.55 5.575 5.6 5.625 5.65 5.675 5.7 5.725 5.75 5.775 5.8 5.825 5.85 5.875 5.9 5.925 5.95 5.975 6.0 6.025 6.05 6.075 6.1 6.125 6.15 6.175 6.2 6.225 6.25 6.275 6.3 6.325 6.35 6.375 6.4 6.425 6.45 6.475 6.5 6.525 6.55 6.575 6.6 6.625 6.65 6.675 6.7 6.725 6.75 6.775 6.8 6.825 6.85 6.875 6.9 6.925 6.95 6.975 7.0 7.025 7.05 7.075 7.1 7.125 7.15 7.175 7.2 7.225 7.25 7.275 7.3 7.325 7.35 7.375 7.4 7.425 7.45 7.475 7.5 7.525 7.55 7.575 7.6 7.625 7.65 7.675
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
232.500 232.500 232.500 232.500 235.000 237.500 235.000 232.500 233.750 235.000 237.500 238.125 238.750 239.375 240.000 241.667 243.333 245.000 246.250 247.500 247.788 248.077 248.365 248.654 248.942 249.231 249.519 249.808 250.096 250.385 250.673 250.962 251.250 251.538 251.827 252.115 252.404 252.692 252.981 253.269 253.558 253.846 254.135 254.423 254.712 255.000 255.000 252.500 250.000 248.750 247.500 247.273 247.045 246.818 246.591 246.364 246.136 245.909 245.682 245.455 245.227 245.000 245.833 246.667 247.500 248.750 250.000 251.250 252.500 255.000 257.500 235.000 235.152 235.303 235.455 235.606 235.758 235.909 236.061 236.212 236.364 236.515 236.667 236.818 236.970 237.121 237.273 237.424 237.576 237.727 237.879 238.030 238.182 238.333 238.485 238.636 238.788 238.939 239.091 239.242 239.394 239.545 239.697 239.848 240.000 241.250 242.500 242.500 242.917 243.333 243.750 244.167 244.583 245.000 245.000 245.000 245.000 245.000 244.167 243.333 242.500 242.500 242.500 242.500 240.000 240.000 240.000 240.833 241.667 242.500 241.250 240.000 242.500 242.500 242.500 242.500 242.500 250.000 250.000 245.000 245.000 245.000 252.500 245.000 245.000 245.000 245.000 245.000 245.000 245.000 245.000 245.000 245.000 245.000 245.000 245.000 245.000 245.000 246.250 247.500 247.500 247.500 247.500 247.500 247.500 247.500 247.500 252.500 250.833 249.167 247.500 247.500 247.500 247.500 247.500 247.500 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 252.500 252.500 252.500 252.500 252.500 252.500 252.500 247.500 252.500 252.500 252.500 252.500 252.500 252.500 252.500 252.500 252.500 252.500 252.500 252.500 252.838 253.248 253.754 254.396 255.236 256.383 258.041 260.654 265.377 276.493
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
57 45 48 57 63 57 0 81 75 72 78 0 0 0 0 54 0 57 0 54 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 81 0 69 0 0 69 69 69 69 66 0 0 66 66 0 0 87 0 0 0 87 0 75 90 90 96 111 111 108 108 108 90 90 93 96 93 93 90 96 66 63 66 63 78 87 66 69 96 90 96 96 90 99 0 99 105 108 0 72 72 0 0 57 51 60 63 66 0 54 0 0 0 108 114 111 114 114 78 78 69 72 75 78 114 114 75 72 72 69 63 60 99 0 75 0 111 108 105 108 105 108 111 111 111 111 75 75 72 63 72 69 102 108 108 108 72 69 69 69 0 96 0 99 102 102 63 66 99 105 105 102 111 108 69 72 72 0 0 90 96 93 84 78 54 66 102 99 0 69 105 102 102 108 111 114 111 111 114 108 108 111 114 108 108 93 96 99 0 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 -10.9375 -10.9375 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 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 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 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 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 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="342">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 138.58333 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 167.16667 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 195.75 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 242.605 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0
</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 0.3533988 0.35268724 0.35168076 0.35038465 0.34873247 0.34680796 0.3446216 0.34204412 0.33923516 0.3360058 0.33251932 0.32860458 0.3243659 0.31978112 0.314722 0.3093164 0.3034716 0.29713094 0.29034886 0.28298154 0.27503994 0.26650268 0.25724816 0.24721296 0.23637795 0.22454801 0.21165071 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 0.2044898 0.20987755 0.2152653 0.22065306 0.22604081 0.23142858 0.23681633 0.24220408 0.24759184 0.2529796 0.25836736 0.2637551 0.26914287 0.27453062 0.27991837 0.28530613 0.29069388 0.29608163 0.3014694 0.30685714 0.3122449 0.31763265 0.3230204 0.32840815 0.3337959 0.3391837 0.34457144 0.3499592 0.354 0.36320907 0.409315 0.475571 0.5629603 0.65957123 0.75474936 0.84590393 0.9336565 1.0190599 1.1030641 1.1864216 1.2697244 1.3534847 1.438079 1.5239204 1.6113023 1.7005655 1.7920016 1.8859208 1.9826248 2.0824473 2.185746 2.292853 2.404194 2.5202088 2.6413782 2.7682633 2.9014773 3.0417273 3.1898046 3.3466659 3.5133638 3.691168 3.881588 4.0863194 4.307436 4.5473013 4.808547 5.094073 5.4066067 5.7476134 6.1153507 6.5013604 6.8849564 7.2314205 7.4983153 7.649291 7.675 7.673964 7.662338 7.638449 7.603112 7.557144 7.5013533 7.4365354 7.3634677 7.282905 7.1955743 7.1021743 7.0033712 6.8997993 6.7920585 6.6807146 6.5662994 6.44931 6.33021 6.209431 6.0873723 5.9644027 5.840861 5.7170587 5.59328 5.4697847 5.346807 5.22456 5.103235 4.9830027 4.864017 4.746413 4.630311 4.515815 4.403016 4.2919927 4.182812 4.0755296 3.9701912 3.8668344 3.765488 3.6661732 3.568905 3.4736917 3.3805363 3.2894366 3.2003863 3.1133745 3.0283873 2.9454074 2.8644145 2.7853858 2.7082965 2.6331203 2.5598283 2.488391 2.4187772 2.3509555 2.284893 2.220556 2.157911 2.0969238 2.0375597 1.9797843 1.9235629 1.8688608 1.8156438 1.7638775 1.7135278 1.6645612 1.6169441 1.5706438 1.5256275 1.4818633 1.4393196 1.3979654 1.3577701 1.3187038 1.2807369 1.2438407 1.2079868 1.1731477 1.1392959 1.1064054 1.0744499 1.0434041 1.0132433 0.9839432 0.9554803 0.9278314 0.90097415 0.8748865 0.8495471 0.82493514 0.80103016 0.77781254 0.7552628 0.73336226 0.7120926 0.69143593 0.67137504 0.65189296 0.63297325 0.6146 0.5967576 0.5794309 0.5626052 0.5462662 0.53040004 0.5149931 0.50003225 0.48550466 0.47139797 0.45770004 0.44439912 0.43148383 0.41894302 0.4067659 0.39494205 0.38346124 0.37231356 0.36148942 0.35097945 0.3407746 0.33086604 0.3212452 0.31190377 0.30283365 0.294027 0.28547618 0.2771738 0.26911262 0.26128572 0.25368625 0.24630763 0.23914346 0.23218754 0.2254338 0.21887639 0.21250962 0.20632794 0.200326 0.19449855 0.18884055 0.18334706 0.17801332 0.1728347 0.16780666 0.16292484 0.158185 0.15358302 0.14911488 0.14477669 0.14056468 0.13647519 0.13250464 0.12864959 0.12490667 0.12127262 0.11774429 0.114318594 0.11099255 0.10776326 0.104627915 0.10158378 0.0986282 0.0957586 0.09297249 0.09026743 0.08764107 0.08509111 0.08261534 0.080211595 0.07787779 0.075611874 0.07341189 0.071275905 0.06920207 0.06718857 0.065233655 0.06333561 0.061492793 0.059703592 0.057966445 0.05627984 0.054642312 0.053052425 0.051508795 0.050010078

</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="7.675" PeakHeight="242.605" Num="5" zHalfNm="235.062" Error="1.886">
-37.071 -15.259 5.765 0.98 -1.27
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="12" 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="6508.583" A="-1.85709953E11" B="5.7317888E7" C="-4422.5513" Error="0.00149"/>
<QuasiParabolic ID="2" StartDistance="6508.583" EndDistance="6537.167" A="0.0" B="30.001045" C="0.0354107" Error="5.04E-4"/>
<QuasiParabolic ID="3" StartDistance="6537.167" EndDistance="6538.0" A="1.19809235E13" B="-3.66524237E9" C="280320.72" Error="0.0842"/>
<QuasiParabolic ID="4" StartDistance="6538.0" EndDistance="6543.0" A="-7.4646258E11" B="2.2811512E8" C="-17427.645" Error="0.0774"/>
<QuasiParabolic ID="5" StartDistance="6543.0" EndDistance="6565.0" A="1.40872024E11" B="-4.3116612E7" C="3299.2197" Error="0.059"/>
<QuasiParabolic ID="6" StartDistance="6565.0" EndDistance="6566.0" A="1.06366784E13" B="-3.24062054E9" C="246825.8" Error="2.38E-10"/>
<QuasiParabolic ID="7" StartDistance="6566.0" EndDistance="6569.0" A="2.83524507E13" B="-8.6368348E9" C="657746.8" Error="0.02"/>
<QuasiParabolic ID="8" StartDistance="6569.0" EndDistance="6585.0" A="1.39575448E13" B="-4.25415706E9" C="324158.88" Error="0.0346"/>
<QuasiParabolic ID="9" StartDistance="6585.0" EndDistance="6597.0" A="5.4216492E13" B="-1.64816271E10" C="1252592.5" Error="0.0146"/>
<QuasiParabolic ID="10" StartDistance="6597.0" EndDistance="6610.0" A="2.99711039E14" B="-9.0907746E10" C="6893498.5" Error="0.047"/>
<QuasiParabolic ID="11" StartDistance="6610.0" EndDistance="6612.605" A="-1.87604346E15" B="5.6741436E11" C="-4.2903936E7" Error="0.00271"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="85.75" Depth="0.154"/>
<TopsideChapman PeakHeight="242.605" PeakDensity="730839.0" PeakScaleHeight="10.583" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
