<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-02-21 -052 06:15:00.000"
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) 06:15:00</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">
FF202605202210615001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="23" >
<URSI ID="00" Val="6.450" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="4.435" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="28.608" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.200" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.200" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="192.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="192.500" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="6.425" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="210.906" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.200" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.200" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="199.015" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="193.163" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.739" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="9.110" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.961" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="10.583" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="12.070" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.000" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="171">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.2 2.225 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
192.500 192.500 192.500 195.000 195.000 195.000 195.000 196.250 197.500 197.500 196.250 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 195.000 197.500 197.500 197.500 200.000 200.000 200.000 200.000 200.000 198.750 197.500 202.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 198.750 200.000 200.000 201.250 202.500 202.500 202.500 202.500 202.500 202.500 202.143 201.786 201.429 201.071 200.714 200.357 200.000 199.643 199.286 198.929 198.571 198.214 197.857 197.500 198.750 200.000 200.000 200.000 200.000 200.000 200.000 200.000 200.000 200.000 200.000 200.000 200.000 200.000 200.000 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 200.000 200.000 203.750 207.500 207.500 207.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 205.000 205.000 205.000 205.000 205.000 205.000 205.000 205.000 205.000 205.000 205.000 205.000 205.000 205.161 205.323 205.484 205.645 205.806 205.968 206.129 206.290 206.452 206.613 206.774 206.935 207.097 207.258 207.419 207.581 207.742 207.903 208.065 208.226 208.387 208.548 208.710 208.871 209.032 209.194 209.355 209.516 209.677 209.839 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.906 219.874
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
75 63 63 51 51 39 45 0 75 69 69 72 72 72 75 69 69 0 54 72 75 75 75 63 57 45 48 69 60 0 66 0 96 102 99 90 93 108 111 99 93 0 87 93 78 93 93 93 96 96 96 66 69 72 84 90 90 87 87 114 117 87 84 81 72 99 111 111 105 111 111 96 99 99 96 108 111 111 105 108 114 102 99 111 111 102 102 102 99 75 78 81 81 102 90 72 78 102 102 87 0 78 78 78 96 108 108 72 72 72 75 78 78 81 78 108 96 72 75 78 78 114 114 117 105 108 105 105 105 66 51 0 0 0 0 0 66 72 75 78 81 117 102 102 105 72 69 99 102 105 105 66 72 72 75 78 72 72 63 78 78 75 78 120 117 111 114 117 114 111 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 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 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="292">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 129.25 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 148.5 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 167.75 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 199.015 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0
</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 0.35375586 0.35312265 0.35191265 0.35033494 0.34821823 0.34559593 0.34250996 0.33892286 0.3348177 0.33020067 0.32495445 0.3191686 0.31270903 0.30557105 0.2977397 0.28906867 0.2796508 0.26920512 0.2577122 0.254 0.254 0.254 0.254 0.254 0.254 0.254 0.254 0.254 0.254 0.254 0.254 0.254 0.254 0.254 0.254 0.254 0.254 0.254 0.254 0.254 0.2565974 0.2617922 0.26698703 0.2721818 0.27737662 0.28257143 0.28776625 0.29296103 0.29815584 0.30335066 0.30854544 0.31374025 0.31893507 0.32412988 0.32932466 0.33451948 0.3397143 0.3449091 0.35010388 0.354 0.37418482 0.4703942 0.583739 0.7041327 0.8268996 0.95088303 1.0763073 1.2036676 1.3335531 1.4664881 1.6030602 1.7437291 1.8890587 2.039522 2.195705 2.3581557 2.5274837 2.704409 2.8896422 3.0840776 3.2887468 3.5047517 3.7334561 3.9764843 4.235778 4.5137043 4.8130593 5.1371703 5.488936 5.866815 6.2421975 6.4499445 6.45 6.44465 6.4287167 6.4028816 6.3678308 6.3242474 6.272805 6.2141647 6.1489677 6.0778356 6.0013647 5.9201274 5.8346667 5.7454996 5.6531134 5.5579658 5.4604874 5.3610787 5.2601137 5.1579385 5.054874 4.9512143 4.847232 4.743174 4.639267 4.5357165 4.432709 4.3304124 4.2289777 4.128539 4.029217 3.9311166 3.8343318 3.7389433 3.6450214 3.552626 3.4618075 3.372608 3.2850618 3.199196 3.115031 3.0325813 2.9518564 2.8728604 2.7955933 2.7200508 2.646226 2.5741074 2.5036821 2.434934 2.3678446 2.302394 2.23856 2.1763198 2.1156485 2.0565207 1.99891 1.9427887 1.8881294 1.8349036 1.7830827 1.7326379 1.6835401 1.6357602 1.5892692 1.5440379 1.5000376 1.4572395 1.4156152 1.3751366 1.3357759 1.2975055 1.2602983 1.2241275 1.1889672 1.1547911 1.1215742 1.0892913 1.0579181 1.0274304 0.9978051 0.96901894 0.9410495 0.9138748 0.8874733 0.861824 0.8369063 0.8127003 0.78918624 0.76634514 0.7441583 0.7226077 0.7016754 0.68134433 0.6615976 0.6424188 0.623792 0.6057016 0.58813256 0.57107 0.5544997 0.5384076 0.52278024 0.50760424 0.49286687 0.4785556 0.4646582 0.45116287 0.43805814 0.42533278 0.41297594 0.40097705 0.3893258 0.3780122 0.36702657 0.35635948 0.3460017 0.33594438 0.32617882 0.3166966 0.3074896 0.2985498 0.28986952 0.28144124 0.2732577 0.2653118 0.2575967 0.25010568 0.24283226 0.23577014 0.22891322 0.22225553 0.21579131 0.20951496 0.20342101 0.1975042 0.19175935 0.1861815 0.18076581 0.17550756 0.17040218 0.16544525 0.16063245 0.15595958 0.15142259 0.14701752 0.14274058 0.138588 0.13455619 0.13064164 0.12684093 0.12315077 0.119567946 0.11608932 0.112711884 0.10943268 0.10624886 0.10315766 0.100156374 0.09724239 0.094413176 0.09166627 0.088999264 0.086409844 0.08389576 0.081454806 0.079084866 0.07678387 0.07454982 0.07238076 0.07027481 0.06823012 0.06624492 0.06431748 0.062446114 0.060629193 0.058865134 0.057152398 0.05548949 0.05387497 0.05230742 0.050785474

</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="6.45" PeakHeight="199.015" Num="5" zHalfNm="193.163" Error="0.425">
-25.24 -10.339 5.346 -0.95 -0.082
</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="6499.25" A="-2.90721038E11" B="8.972872E7" C="-6923.387" Error="9.59E-4"/>
<QuasiParabolic ID="2" StartDistance="6499.25" EndDistance="6518.5" A="0.0" B="-8178.1167" C="1.3228949" Error="0.0586"/>
<QuasiParabolic ID="3" StartDistance="6518.5" EndDistance="6537.0" A="2.03078943E11" B="-6.2345564E7" C="4785.114" Error="0.0586"/>
<QuasiParabolic ID="4" StartDistance="6537.0" EndDistance="6551.0" A="3.6754355E13" B="-1.12452362E10" C="860138.5" Error="0.0649"/>
<QuasiParabolic ID="5" StartDistance="6551.0" EndDistance="6563.0" A="1.23935123E14" B="-3.7861253E10" C="2891585.5" Error="0.0527"/>
<QuasiParabolic ID="6" StartDistance="6563.0" EndDistance="6568.0" A="5.6381291E14" B="-1.71909022E11" C="1.3103971E7" Error="0.0116"/>
<QuasiParabolic ID="7" StartDistance="6568.0" EndDistance="6569.015" A="-4.7656377E15" B="1.45094436E12" C="-1.10438464E8" Error="2.85E-6"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="57.75" Depth="0.1"/>
<TopsideChapman PeakHeight="199.015" PeakDensity="516160.06" PeakScaleHeight="10.583" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
