<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-02-21 -052 06:55:00.000"
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 55 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 20% PACIFIC flags: F2x cusp not found, Multiple candidates for F2x cusp, Multiple candidates for F2o cusp, F2 cusps do not match, Unidentified traces above foF2</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.02.21 (052) 06:55:00</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">
FF202605202210655001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="23" >
<URSI ID="00" Val="3.425" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.848" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.180" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.425" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.425" Name="fminF" 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="0.200" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.350" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="262.947" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.425" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.425" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="229.295" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="210.384" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.487" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="27.029" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.891" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.432" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="25.600" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.580" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="41">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
217.500 217.500 217.500 217.500 217.500 217.500 217.500 222.500 225.000 225.000 225.000 225.000 227.500 230.000 230.500 231.000 231.500 232.000 232.500 232.500 237.500 237.500 237.500 237.500 242.500 247.500 248.750 250.000 250.000 252.500 255.000 257.500 256.250 255.000 257.500 258.722 260.422 262.947 267.089 275.136 297.537
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 69 57 57 63 66 66 72 69 69 69 75 69 66 54 54 42 45 63 57 57 60 75 78 87 84 84 84 90 87 87 87 87 87 87 90 105 105 105 108 102
</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 -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="359">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 135.08333 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 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 185.25 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 229.295 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0
</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 0.35324875 0.35231337 0.35101187 0.34927908 0.3471288 0.34465033 0.34171918 0.33843222 0.33468077 0.33043912 0.32582152 0.32063016 0.31500506 0.30879995 0.30202654 0.29470333 0.28661102 0.27785686 0.26831484 0.25787413 0.24648583 0.23391104 0.2201678 0.20492378 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 0.20511627 0.21125582 0.21739535 0.22353488 0.22967441 0.23581396 0.24195349 0.24809302 0.25423256 0.2603721 0.26651162 0.27265117 0.2787907 0.28493023 0.29106978 0.2972093 0.30334884 0.3094884 0.3156279 0.32176745 0.32790697 0.3340465 0.34018606 0.34632558 0.35246512 0.354 0.38460526 0.4290263 0.47706127 0.528262 0.5823858 0.63933694 0.699164 0.7619693 0.82795995 0.89735794 0.97039753 1.0473473 1.1284333 1.2138678 1.3038334 1.3983433 1.497394 1.6006922 1.7078357 1.8181193 1.9307108 2.0444653 2.1581757 2.2705808 2.3804986 2.486804 2.5886173 2.6852655 2.7762198 2.8611782 2.9399667 3.0124967 3.0787883 3.1389272 3.192985 3.2410972 3.28338 3.3199477 3.350917 3.3763921 3.3964565 3.411176 3.4206023 3.4247718 3.425 3.42421 3.4204476 3.4137142 3.404153 3.3919082 3.3771229 3.3599398 3.3404999 3.3189418 3.2954025 3.270015 3.2429092 3.214212 3.1840456 3.1525288 3.1197758 3.0858965 3.0509968 3.015178 2.9785368 2.9411657 2.9031522 2.8645806 2.82553 2.7860756 2.746288 2.7062352 2.6659796 2.6255808 2.5850947 2.5445735 2.5040662 2.4636183 2.4232724 2.3830678 2.3430414 2.303227 2.263656 2.2243571 2.185357 2.14668 2.1083486 2.070382 2.0327997 1.9956173 1.9588499 1.9225109 1.8866118 1.8511631 1.8161738 1.7816517 1.7476034 1.7140346 1.6809496 1.6483523 1.6162452 1.5846303 1.5535088 1.5228812 1.4927472 1.4631062 1.4339565 1.4052967 1.3771241 1.3494362 1.3222296 1.2955011 1.2692466 1.243462 1.2181429 1.1932846 1.1688824 1.1449311 1.1214253 1.0983598 1.0757291 1.0535274 1.031749 1.010388 0.9894386 0.9688948 0.9487505 0.92899966 0.9096363 0.89065427 0.8720475 0.85380983 0.83593524 0.81841767 0.80125105 0.7844294 0.76794666 0.7517971 0.7359746 0.72047347 0.7052879 0.69041204 0.6758404 0.6615673 0.6475871 0.6338945 0.62048393 0.6073501 0.5944878 0.5818918 0.5695569 0.5574781 0.5456504 0.53406894 0.52272886 0.51162547 0.500754 0.49010992 0.47968864 0.4694858 0.45949692 0.4497178 0.44014412 0.4307718 0.42159674 0.41261494 0.40382242 0.3952154 0.38679 0.3785426 0.37046945 0.362567 0.35483176 0.34726024 0.33984908 0.33259496 0.32549462 0.31854486 0.31174254 0.30508462 0.29856807 0.29218996 0.28594735 0.27983746 0.27385747 0.2680047 0.26227644 0.25667012 0.25118312 0.24581297 0.24055721 0.23541342 0.23037924 0.22545236 0.22063051 0.2159115 0.21129312 0.20677325 0.20234981 0.19802077 0.19378412 0.1896379 0.1855802 0.18160914 0.17772287 0.1739196 0.17019758 0.16655508 0.16299038 0.15950187 0.15608789 0.15274689 0.14947729 0.14627758 0.14314628 0.14008191 0.13708307 0.13414836 0.1312764 0.12846586 0.12571543 0.12302384 0.12038982 0.11781214 0.115289606 0.112821035 0.11040529 0.10804123 0.10572775 0.10346377 0.10124824 0.09908013 0.09695841 0.09488211 0.09285024 0.09086186 0.08891604 0.087011866 0.08514845 0.08332493 0.08154044 0.07979416 0.07808526 0.07641294 0.074776426 0.073174946 0.07160775 0.07007412 0.06857332 0.06710465 0.065667436 0.06426099 0.06288466 0.061537795 0.060219776 0.05892998 0.0576678 0.05643265 0.05522395 0.054041136 0.052883647 0.05175095 0.050642505

</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="3.425" PeakHeight="229.295" Num="5" zHalfNm="210.384" Error="0.852">
-46.721 4.097 -2.264 1.112 -0.269
</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="6505.083" A="-2.40913678E11" B="7.4356072E7" C="-5737.226" Error="0.00142"/>
<QuasiParabolic ID="2" StartDistance="6505.083" EndDistance="6530.167" A="0.0" B="-3254.907" C="0.5403766" Error="0.0484"/>
<QuasiParabolic ID="3" StartDistance="6530.167" EndDistance="6554.0" A="1.14852274E11" B="-3.5249996E7" C="2704.7263" Error="0.0484"/>
<QuasiParabolic ID="4" StartDistance="6554.0" EndDistance="6556.0" A="1.03282723E13" B="-3.15194803E9" C="240475.4" Error="0.0392"/>
<QuasiParabolic ID="5" StartDistance="6556.0" EndDistance="6563.0" A="8.5306235E12" B="-2.60354995E9" C="198651.28" Error="0.0207"/>
<QuasiParabolic ID="6" StartDistance="6563.0" EndDistance="6583.0" A="2.21760528E13" B="-6.7618406E9" C="515449.25" Error="0.0532"/>
<QuasiParabolic ID="7" StartDistance="6583.0" EndDistance="6599.295" A="-3.26197272E13" B="9.885822E9" C="-748994.2" Error="0.00961"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="75.25" Depth="0.154"/>
<TopsideChapman PeakHeight="229.295" PeakDensity="145541.25" PeakScaleHeight="14.432" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
