<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-07 -097 06:00:00.000"
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 44 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 45% PACIFIC flags: F2o cusp not found, Multiple candidates for F2x cusp, One of F2 cusps was derived from the other, F2O model cusp does not fit trace</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.07 (097) 06:00:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.97" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202609704070600001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="23" >
<URSI ID="00" Val="5.200" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.872" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="20.137" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.675" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.675" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="5.975" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="227.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="227.500" 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="88" Val="5.200" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="270.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.675" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.675" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="237.207" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="223.580" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.320" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="20.142" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.535" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="10.583" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="22.020" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.510" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="102">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
227.500 227.500 227.500 227.500 228.125 228.750 229.375 230.000 230.000 230.000 230.000 230.000 230.000 230.625 231.250 231.875 232.500 232.500 232.500 232.500 232.500 232.500 232.500 235.000 235.000 235.000 235.000 235.000 235.000 235.000 235.000 235.000 235.000 235.000 235.833 236.667 237.500 237.500 237.500 237.500 238.333 239.167 240.000 240.294 240.588 240.882 241.176 241.471 241.765 242.059 242.353 242.647 242.941 243.235 243.529 243.824 244.118 244.412 244.706 245.000 247.500 246.250 245.000 245.417 245.833 246.250 246.667 247.083 247.500 248.125 248.750 249.375 250.000 250.625 251.250 251.875 252.500 252.500 252.500 253.750 255.000 255.833 256.667 257.500 257.500 257.500 258.438 259.375 260.313 261.250 262.188 263.125 264.063 265.000 265.000 265.000 265.625 266.250 266.875 267.500 268.750 270.000
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
72 0 0 72 0 0 0 51 75 0 0 84 84 0 0 0 99 0 0 102 102 0 102 99 0 0 0 0 102 102 0 102 0 90 0 0 90 0 0 90 0 0 36 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 48 39 0 45 0 0 0 0 0 36 0 0 0 0 0 0 0 60 0 48 48 51 0 0 48 39 39 0 0 87 0 0 0 0 81 0 84 0 0 0 81 0 54
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
1.5625 -7.8125 -1.5625 1.5625 1.5625 -1.5625 -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 7.8125 -1.5625 -7.8125 -1.5625 -1.5625 1.5625 1.5625 -1.5625 -4.6875 -1.5625 1.5625 1.5625 -1.5625 -1.5625 1.5625 -1.5625 -1.5625 -1.5625 1.5625 10.9375 1.5625 -1.5625 1.5625 -1.5625 7.8125 -4.6875 -1.5625 -4.6875 1.5625 1.5625 1.5625 1.5625 1.5625 -7.8125 -1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 -1.5625 -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="323">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 137.41667 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 164.83333 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 192.25 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 237.207 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0
</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 0.35339895 0.35261247 0.35145745 0.35001534 0.348294 0.34623033 0.34376696 0.34099412 0.3378617 0.33439493 0.33055604 0.32631677 0.32166007 0.316581 0.31108782 0.3051483 0.29865354 0.2916688 0.28410435 0.27593207 0.26707086 0.25740978 0.24700987 0.23557876 0.22317484 0.20959583 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 0.20093617 0.20655319 0.21217021 0.21778724 0.22340426 0.22902128 0.2346383 0.24025533 0.24587233 0.25148937 0.2571064 0.26272342 0.26834044 0.27395746 0.27957445 0.28519148 0.2908085 0.29642552 0.30204254 0.30765957 0.3132766 0.3188936 0.32451063 0.33012766 0.33574468 0.3413617 0.34697872 0.35259575 0.354 0.39649013 0.45168182 0.5086847 0.5693609 0.6349138 0.70620847 0.7837952 0.86792654 0.95850307 1.0551302 1.1571139 1.263698 1.374004 1.4872906 1.6029161 1.7203472 1.8391745 1.9591746 2.0801568 2.2020018 2.3246462 2.448065 2.572296 2.697354 2.823296 2.950153 3.0779636 3.2068024 3.33673 3.4677413 3.5998492 3.7330406 3.867255 4.0023475 4.138092 4.274071 4.4097056 4.544066 4.675681 4.8023767 4.9209065 5.0266056 5.1131124 5.1729536 5.1991897 5.2 5.1971936 5.185944 5.1666055 5.139731 5.105872 5.0655746 5.019372 4.967786 4.9113193 4.8504586 4.785668 4.71739 4.646046 4.572033 4.4957247 4.4174724 4.3376036 4.256424 4.174217 4.0912447 4.007749 3.923952 3.8400574 3.7562506 3.6727006 3.589561 3.5069695 3.4250503 3.3439145 3.263661 3.1843772 3.1061401 3.0290172 2.953066 2.8783371 2.804872 2.7327065 2.6618688 2.5923822 2.5242639 2.4575267 2.3921785 2.3282242 2.2656639 2.2044947 2.1447117 2.0863063 2.0292683 1.9735849 1.9192418 1.866223 1.8145112 1.7640879 1.7149334 1.6670271 1.6203481 1.5748742 1.5305833 1.4874524 1.4454587 1.4045788 1.3647894 1.326067 1.2883881 1.2517294 1.2160676 1.1813793 1.1476419 1.1148324 1.0829284 1.0519077 1.0217483 0.9924286 0.9639275 0.936224 0.90929747 0.8831279 0.85769546 0.83298075 0.80896467 0.7856288 0.7629548 0.7409248 0.7195215 0.69872785 0.6785272 0.6589033 0.63984036 0.6213228 0.6033357 0.5858641 0.5688939 0.55241096 0.53640175 0.52085286 0.50575143 0.49108484 0.47684088 0.46300754 0.44957322 0.4365266 0.42385665 0.4115527 0.3996043 0.38800132 0.3767339 0.36579245 0.35516763 0.3448504 0.33483192 0.32510364 0.3156572 0.30648452 0.2975777 0.28892916 0.2805314 0.2723772 0.26445958 0.25677165 0.24930684 0.2420587 0.23502094 0.2281875 0.22155249 0.21511014 0.2088549 0.20278135 0.19688423 0.19115841 0.18559897 0.18020107 0.17496 0.16987127 0.16493042 0.16013317 0.15547536 0.15095295 0.14656201 0.14229873 0.13815938 0.13414039 0.13023825 0.12644957 0.12277106 0.11919952 0.115731835 0.112365 0.10909608 0.10592222 0.10284068 0.099848755 0.096943855 0.094123445 0.091385074 0.08872635 0.08614496 0.08363867 0.08120527 0.07884266 0.07654878 0.07432163 0.07215926 0.0700598 0.06802142 0.066042334 0.06412082 0.06225521 0.06044388 0.05868524 0.056977764 0.055319965 0.053710394 0.052147653 0.05063038

</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="5.2" PeakHeight="237.207" Num="5" zHalfNm="223.58" Error="0.751">
-41.54 -6.727 4.848 -2.16 0.622
</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="6507.417" A="-2.01785164E11" B="6.2279372E7" C="-4805.382" Error="0.00146"/>
<QuasiParabolic ID="2" StartDistance="6507.417" EndDistance="6534.833" A="0.0" B="3915.968" C="-0.56175643" Error="0.0628"/>
<QuasiParabolic ID="3" StartDistance="6534.833" EndDistance="6558.0" A="-1.73077586E10" B="5155060.5" C="-383.52576" Error="0.0632"/>
<QuasiParabolic ID="4" StartDistance="6558.0" EndDistance="6562.0" A="6.0259906E11" B="-1.8389856E8" C="14030.443" Error="0.00292"/>
<QuasiParabolic ID="5" StartDistance="6562.0" EndDistance="6564.0" A="2.96226138E13" B="-9.0287677E9" C="687976.56" Error="0.063"/>
<QuasiParabolic ID="6" StartDistance="6564.0" EndDistance="6567.0" A="-1.66306015E12" B="5.03735296E8" C="-38143.39" Error="0.0398"/>
<QuasiParabolic ID="7" StartDistance="6567.0" EndDistance="6600.0" A="3.13676897E13" B="-9.555881E9" C="727778.4" Error="0.06"/>
<QuasiParabolic ID="8" StartDistance="6600.0" EndDistance="6604.0" A="-8.8840329E12" B="2.64161075E9" C="-196274.05" Error="0.00404"/>
<QuasiParabolic ID="9" StartDistance="6604.0" EndDistance="6607.207" A="-3.32593845E14" B="1.00676076E11" C="-7618629.5" Error="0.00174"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="82.25" Depth="0.154"/>
<TopsideChapman PeakHeight="237.207" PeakDensity="335483.88" PeakScaleHeight="10.583" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
