<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-02-21 -052 06:05:00.000"
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) 06:05:00</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">
FF202605202210605001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="23" >
<URSI ID="00" Val="7.400" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="4.338" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="32.102" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.025" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.025" Name="fminF" 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="0.025" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="7.350" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="217.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.025" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.025" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="206.227" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="199.683" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.810" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="10.089" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="2.622" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="10.583" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="12.870" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.080" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="216">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.025 2.05 2.075 2.1 2.125 2.15 2.175 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 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
197.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 197.500 200.000 202.500 200.000 200.000 197.500 197.500 200.000 202.500 202.500 202.500 200.000 200.000 200.000 200.000 200.000 202.500 202.500 202.500 202.500 202.500 202.500 200.000 200.000 202.500 202.500 207.500 205.000 205.000 205.000 205.000 197.500 205.000 205.000 205.000 205.000 205.000 210.000 200.000 200.000 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 205.000 205.000 205.000 205.000 205.000 205.000 205.000 205.000 205.000 205.000 205.000 207.500 210.000 210.000 207.500 205.000 205.000 205.000 205.000 205.000 205.000 205.000 210.000 207.500 205.000 205.000 205.000 205.000 205.000 206.250 207.500 208.333 209.167 210.000 205.000 205.000 205.000 205.000 205.000 205.000 205.000 205.000 207.500 207.500 207.500 207.500 207.500 207.500 210.000 210.000 211.250 212.500 212.500 211.786 211.071 210.357 209.643 208.929 208.214 207.500 207.500 207.500 210.000 210.000 208.750 207.500 207.500 207.500 207.500 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 210.000 211.250 212.500 211.250 210.000 210.000 212.500 212.500 212.500 212.500 212.500 212.500 212.500 212.500 212.500 212.500 212.500 212.500 212.500 215.000 215.000 215.000 215.000 212.500 217.500 215.000 212.500 212.500 212.500 215.000 215.000 215.000 215.000 215.000 215.000 215.000 215.000 215.000 217.500 217.500 215.000 215.000 215.000 215.000 215.000 215.000 215.000 215.000 215.000 217.500 217.500 217.500 218.750 220.000 220.000 218.750 217.500 215.000 215.000 217.500 217.500 217.500 217.500 217.500 217.500 217.500 217.500 217.500 219.312 237.247
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
72 75 75 72 69 0 0 0 54 60 42 42 0 0 0 0 51 66 69 57 0 54 51 57 66 0 69 0 69 66 0 51 36 45 69 63 57 0 72 0 0 78 0 0 0 84 84 75 84 84 78 93 102 108 111 114 114 114 90 90 90 87 87 87 81 81 105 102 0 0 78 84 87 87 102 105 102 105 78 0 75 0 93 93 108 111 111 108 93 81 0 87 90 93 90 84 69 69 0 0 75 90 63 66 87 90 93 93 90 90 90 81 99 105 72 63 63 0 54 0 0 0 0 0 0 0 69 72 111 108 105 90 111 111 75 75 72 75 72 72 108 105 72 72 72 72 69 0 93 0 108 111 108 105 0 0 105 105 105 108 108 0 108 111 69 60 0 57 96 108 90 0 111 108 105 96 102 102 102 102 63 48 102 102 90 90 105 108 114 114 111 111 78 78 114 105 90 84 0 75 57 0 0 99 102 105 96 96 108 108 108 105 105 105 99 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 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 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="304">
<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 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 171.25 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 206.227 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0
</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 0.41638467 0.5113043 0.61305386 0.7180384 0.8251969 0.93459976 1.0466093 1.161683 1.2803125 1.4029659 1.5301384 1.6622721 1.79988 1.9434805 2.0936396 2.2508807 2.4158764 2.5893123 2.7719445 2.964592 3.1681702 3.383778 3.6124852 3.8556488 4.1147037 4.391219 4.6869736 5.0035815 5.342772 5.7051473 6.0893445 6.488445 6.881575 7.216349 7.3931737 7.4 7.3962035 7.3804326 7.353135 7.3150973 7.267105 7.209934 7.1443453 7.0710797 6.990856 6.9043646 6.8122683 6.715197 6.6137505 6.508495 6.399963 6.2886543 6.1750364 6.059545 5.9425836 5.824526 5.7057166 5.586473 5.4670844 5.347816 5.2289085 5.110581 4.993029 4.876431 4.760945 4.646712 4.533856 4.422488 4.312703 4.204585 4.0982046 3.9936218 3.890887 3.7900414 3.6911178 3.5941412 3.4991295 3.4060948 3.315043 3.225975 3.1388874 3.053772 2.9706178 2.8894093 2.8101292 2.7327569 2.6572695 2.5836427 2.51185 2.4418635 2.3736541 2.3071916 2.2424448 2.179382 2.1179707 2.0581784 1.9999719 1.9433178 1.8881828 1.8345335 1.7823366 1.7315589 1.6821676 1.6341299 1.5874133 1.541986 1.4978163 1.454873 1.4131253 1.372543 1.3330963 1.2947559 1.2574934 1.2212803 1.1860893 1.1518929 1.1186651 1.0863795 1.0550112 1.0245351 0.9949269 0.9661632 0.93822074 0.9110769 0.8847098 0.8590978 0.83422 0.810056 0.7865858 0.7637901 0.7416499 0.72014683 0.699263 0.6789809 0.65928346 0.6401542 0.6215769 0.60353607 0.58601636 0.56900287 0.55248123 0.53643745 0.52085775 0.50572896 0.49103808 0.47677264 0.4629204 0.44946948 0.43640837 0.42372584 0.41141105 0.39945334 0.38784248 0.3765684 0.36562148 0.35499224 0.34467146 0.3346503 0.32492006 0.31547236 0.306299 0.29739207 0.28874385 0.28034684 0.27219376 0.26427758 0.2565914 0.24912858 0.24188262 0.23484726 0.22801639 0.22138406 0.21494453 0.2086922 0.20262162 0.19672754 0.19100483 0.18544851 0.18005374 0.17481585 0.16973028 0.16479258 0.15999849 0.15534382 0.1508245 0.14643665 0.14217639 0.13804005 0.13402402 0.1301248 0.126339 0.12266333 0.11909456 0.115629606 0.112265445 0.10899915 0.10582787 0.10274884 0.09975938 0.09685689 0.09403884 0.09130276 0.08864629 0.086067095 0.08356294 0.08113164 0.07877107 0.076479174 0.07425396 0.07209349 0.069995865 0.06795928 0.06598194 0.06406213 0.062198177 0.060388457 0.058631387 0.056925442 0.055269126 0.053661004 0.05209967 0.050583765

</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="7.4" PeakHeight="206.227" Num="5" zHalfNm="199.683" Error="0.518">
-28.465 -10.613 4.659 -0.372 -0.186
</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="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="1912.6184" C="-0.2360747" Error="0.0146"/>
<QuasiParabolic ID="3" StartDistance="6520.833" EndDistance="6541.0" A="2.46518415E10" B="-7691216.5" C="599.7877" Error="0.0155"/>
<QuasiParabolic ID="4" StartDistance="6541.0" EndDistance="6542.0" A="8.1409838E13" B="-2.48923218E10" C="1902803.6" Error="1.87E-9"/>
<QuasiParabolic ID="5" StartDistance="6542.0" EndDistance="6544.0" A="1.01929619E13" B="-3.12011955E9" C="238771.03" Error="0.0344"/>
<QuasiParabolic ID="6" StartDistance="6544.0" EndDistance="6551.0" A="2.935663E13" B="-8.9769861E9" C="686270.0" Error="0.0119"/>
<QuasiParabolic ID="7" StartDistance="6551.0" EndDistance="6559.0" A="5.7966728E13" B="-1.77115607E10" C="1352929.6" Error="0.0124"/>
<QuasiParabolic ID="8" StartDistance="6559.0" EndDistance="6569.0" A="1.87814575E14" B="-5.7305354E10" C="4371209.5" Error="0.0336"/>
<QuasiParabolic ID="9" StartDistance="6569.0" EndDistance="6573.0" A="6.4196735E14" B="-1.95576857E11" C="1.4895757E7" Error="0.00904"/>
<QuasiParabolic ID="10" StartDistance="6573.0" EndDistance="6575.0" A="-5.7268825E14" B="1.74012547E11" C="-1.3218454E7" Error="7.49E-4"/>
<QuasiParabolic ID="11" StartDistance="6575.0" EndDistance="6576.227" A="-3.33368194E15" B="1.0138585E12" C="-7.7085064E7" Error="1.67E-4"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="61.25" Depth="0.113"/>
<TopsideChapman PeakHeight="206.227" PeakDensity="679404.44" PeakScaleHeight="10.583" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
