<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-02-21 -052 06:40:00.000"
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 33 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 60% PACIFIC flags: Multiple candidates for F2x cusp, Multiple candidates for F2o cusp, One of F2 cusps was derived from the other, Unidentified traces above foF2</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.02.21 (052) 06:40:00</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">
FF202605202210640001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="5.450" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="4.124" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="22.475" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="4.000" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="4.000" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="6.250" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="197.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="197.500" 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="0.525" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="5.275" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="228.431" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="4.000" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="4.000" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="210.061" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="194.018" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.572" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="22.872" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.898" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="12.398" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="20.010" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.400" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="59">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
197.500 197.500 197.500 197.500 197.500 200.000 200.000 200.000 200.000 200.833 201.667 202.500 205.000 205.000 205.000 205.417 205.833 206.250 206.667 207.083 207.500 207.500 207.500 208.333 209.167 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 212.500 215.000 215.000 215.000 215.000 220.000 220.833 221.667 222.500 217.500 217.500 217.500 218.750 220.000 223.333 224.267 225.383 226.741 228.431 230.589 233.443 237.393 243.220 252.680 270.711 318.602
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
96 90 96 99 96 105 99 99 105 96 102 108 108 99 96 84 78 48 57 81 81 90 93 63 66 87 90 93 96 96 93 93 93 99 0 63 63 96 102 90 90 102 102 60 60 60 60 60 69 105 105 102 90 0 96 60 63 60 54
</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 -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="328">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 130.41667 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 150.83333 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 171.25 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 210.061 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0
</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 0.35375172 0.35311857 0.35194156 0.35034353 0.348288 0.34577343 0.34275505 0.3392274 0.3352465 0.33069065 0.32556674 0.31982708 0.31355324 0.30657426 0.2989218 0.29046544 0.28123897 0.27106133 0.2598764 0.24752563 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.24192245 0.24745715 0.25299183 0.25852653 0.2640612 0.26959592 0.2751306 0.2806653 0.2862 0.2917347 0.29726937 0.30280408 0.30833876 0.31387347 0.31940815 0.32494286 0.33047757 0.33601224 0.34154695 0.34708163 0.35261634 0.354 0.37945142 0.42200515 0.47712928 0.5465974 0.62930155 0.72194785 0.82163334 0.9270209 1.0380318 1.1553729 1.2801435 1.4138237 1.5582149 1.7153447 1.8876714 2.0776756 2.28788 2.51977 2.7727492 3.042288 3.3192248 3.5917492 3.8492095 4.084775 4.2959666 4.4829407 4.647383 4.7913585 4.916964 5.0260344 5.120148 5.2006383 5.2685795 5.3248305 5.370088 5.4048934 5.4296494 5.4446216 5.449982 5.45 5.4469953 5.4374104 5.42159 5.399894 5.372684 5.3403172 5.3031473 5.2615204 5.215776 5.1662436 5.1132426 5.057081 4.9980555 4.9364505 4.872536 4.8065724 4.7388043 4.669464 4.598772 4.526935 4.454148 4.3805933 4.306442 4.231853 4.1569753 4.081947 4.006895 3.9319375 3.8571835 3.7827327 3.7086768 3.6350994 3.5620768 3.4896784 3.4179661 3.3469965 3.2768202 3.207482 3.1390216 3.0714743 3.0048704 2.9392366 2.8745952 2.810965 2.7483623 2.6867995 2.626286 2.5668294 2.5084345 2.4511037 2.3948379 2.3396354 2.2854936 2.2324078 2.1803725 2.1293805 2.0794232 2.0304918 1.9825763 1.9356651 1.889747 1.8448097 1.8008399 1.7578247 1.7157501 1.6746019 1.6343658 1.5950271 1.5565708 1.5189819 1.4822454 1.4463459 1.4112681 1.3769968 1.3435166 1.3108124 1.2788689 1.2476711 1.2172039 1.1874524 1.1584021 1.1300381 1.1023462 1.0753119 1.0489212 1.0231603 0.9980154 0.973473 0.94951975 0.92614263 0.9033288 0.8810654 0.85934013 0.8381407 0.81745523 0.7972717 0.7775788 0.758365 0.7396192 0.7213305 0.7034883 0.686082 0.66910136 0.65253645 0.6363773 0.62061435 0.60523814 0.59023947 0.5756093 0.5613389 0.5474195 0.53384274 0.5206004 0.50768435 0.4950867 0.4827998 0.4708161 0.45912823 0.44772902 0.43661147 0.4257687 0.41519397 0.40488082 0.3948228 0.38501373 0.37544745 0.36611804 0.35701972 0.3481468 0.33949372 0.33105513 0.32282573 0.31480038 0.30697408 0.2993419 0.29189903 0.28464088 0.27756283 0.27066046 0.26392943 0.2573655 0.25096458 0.24472259 0.23863563 0.23269987 0.22691156 0.22126704 0.21576278 0.21039529 0.20516117 0.20005713 0.19507997 0.1902265 0.18549368 0.1808785 0.17637809 0.17198955 0.16771013 0.1635371 0.15946786 0.1554998 0.15163042 0.14785728 0.14417797 0.14059018 0.1370916 0.13368008 0.1303534 0.12710947 0.12394624 0.12086171 0.1178539 0.11492092 0.11206092 0.10927206 0.10655259 0.10390079 0.10131496 0.09879348 0.096334726 0.09393716 0.09159924 0.089319505 0.0870965 0.0849288 0.08281505 0.08075389 0.07874403 0.076784186 0.07487311 0.073009595 0.07119245 0.06942053 0.067692704 0.06600788 0.064364985 0.06276298 0.061200842 0.05967758 0.058192227 0.05674384 0.055331506 0.05395432 0.052611403 0.051301915 0.050025016

</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="5.45" PeakHeight="210.061" Num="5" zHalfNm="194.018" Error="1.261">
-42.018 6.308 -4.409 2.224 -0.916
</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="6500.417" A="-2.85866426E11" B="8.8230384E7" C="-6807.7744" Error="0.00128"/>
<QuasiParabolic ID="2" StartDistance="6500.417" EndDistance="6520.833" A="0.0" B="-1408.3021" C="0.27480337" Error="0.013"/>
<QuasiParabolic ID="3" StartDistance="6520.833" EndDistance="6522.0" A="1.1084628E13" B="-3.39937152E9" C="260625.1" Error="0.0"/>
<QuasiParabolic ID="4" StartDistance="6522.0" EndDistance="6537.0" A="-1.99650017E11" B="6.100204E7" C="-4659.597" Error="0.0763"/>
<QuasiParabolic ID="5" StartDistance="6537.0" EndDistance="6541.0" A="9.7947517E11" B="-2.99752192E8" C="22933.658" Error="0.00798"/>
<QuasiParabolic ID="6" StartDistance="6541.0" EndDistance="6545.0" A="1.66612183E13" B="-5.0946591E9" C="389460.72" Error="0.0192"/>
<QuasiParabolic ID="7" StartDistance="6545.0" EndDistance="6554.0" A="3.21848911E13" B="-9.8383329E9" C="751849.9" Error="0.048"/>
<QuasiParabolic ID="8" StartDistance="6554.0" EndDistance="6563.0" A="1.61445841E14" B="-4.9283236E10" C="3761073.5" Error="0.0347"/>
<QuasiParabolic ID="9" StartDistance="6563.0" EndDistance="6580.061" A="-1.06871797E14" B="3.24835287E10" C="-2468300.5" Error="0.011"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="61.25" Depth="0.113"/>
<TopsideChapman PeakHeight="210.061" PeakDensity="368517.38" PeakScaleHeight="12.398" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
