<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-11 -131 01:45:00.000"
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: 50% PACIFIC flags: F2o cusp not found, 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" >
2026.05.11 (131) 01:45:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.21" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.99" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="75.82641" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202613105110145001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.975" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.677" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="10.940" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.625" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.625" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.300" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="252.045" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="252.045" 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="2.825" 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="2.625" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.625" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="249.142" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="232.459" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.291" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="23.848" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.605" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="12.744" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="23.080" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.440" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="15">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
252.045 253.389 254.903 256.620 258.586 260.857 262.500 267.500 270.000 275.000 280.000 287.500 297.500 312.500 334.222
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 0 0 0 0 0 0 0 0 0 0 54 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -1.5625 -1.5625 1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="348">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 143.14366 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 176.28734 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 209.431 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 249.142 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0
</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 0.3538872 0.35354906 0.35306174 0.352277 0.3512732 0.35012832 0.34869888 0.34706524 0.34516227 0.3430713 0.34073105 0.3381542 0.3352872 0.33221552 0.32889074 0.325272 0.32138783 0.31720918 0.31271654 0.3079008 0.3027639 0.29731962 0.29147476 0.28526625 0.2785632 0.2715048 0.26392835 0.25578123 0.24709265 0.23775691 0.22776459 0.21694617 0.20532878 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 0.2 0.2 0.2 0.2 0.2 0.2 0.20331137 0.2079578 0.21260424 0.21725067 0.22189711 0.22654355 0.23119 0.23583643 0.24048287 0.2451293 0.24977574 0.2544222 0.2590686 0.26371506 0.2683615 0.27300793 0.27765438 0.2823008 0.28694725 0.2915937 0.29624012 0.30088657 0.305533 0.31017944 0.3148259 0.3194723 0.32411876 0.32876518 0.33341163 0.33805808 0.3427045 0.34735096 0.35199738 0.354 0.37522644 0.41633385 0.46184725 0.51117194 0.56382376 0.6194803 0.6779945 0.739375 0.80371195 0.87115055 0.94191986 1.0162028 1.0942128 1.1761184 1.2620193 1.3519341 1.4457353 1.5431112 1.6435287 1.746209 1.8501769 1.9542389 2.057131 2.157551 2.2543437 2.346471 2.43317 2.5138624 2.588153 2.6558344 2.7168274 2.7711282 2.8187985 2.8599274 2.8946304 2.923008 2.9451516 2.9611526 2.9710681 2.9749393 2.975 2.9737017 2.969014 2.9610803 2.950082 2.9362001 2.9196148 2.9005046 2.8790443 2.8554056 2.8297558 2.8022573 2.7730668 2.7423358 2.7102094 2.6768272 2.642322 2.6068208 2.5704434 2.5333042 2.495511 2.4571652 2.4183624 2.3791926 2.3397398 2.3000824 2.2602937 2.2204416 2.1805894 2.1407957 2.1011143 2.0615947 2.022283 1.9832208 1.9444462 1.9059939 1.8678955 1.8301793 1.7928708 1.755993 1.719566 1.6836079 1.6481345 1.6131593 1.5786942 1.5447494 1.5113328 1.4784515 1.4461108 1.414315 1.3830667 1.3523676 1.3222188 1.2926197 1.2635696 1.2350664 1.2071077 1.1796901 1.1528101 1.1264632 1.1006446 1.075349 1.050571 1.0263044 1.0025431 0.9792804 0.9565098 0.9342242 0.91241646 0.8910793 0.87020546 0.8497873 0.82981735 0.81028795 0.79119146 0.7725202 0.75426644 0.73642254 0.71898085 0.7019337 0.6852735 0.66899276 0.65308386 0.63753945 0.6223522 0.6075147 0.59301984 0.5788605 0.5650297 0.55152035 0.5383257 0.5254391 0.5128538 0.50056326 0.48856106 0.4768409 0.46539658 0.45422196 0.44331104 0.4326579 0.4222568 0.41210204 0.40218806 0.39250937 0.38306063 0.3738366 0.3648321 0.35604215 0.34746173 0.33908603 0.33091033 0.32292998 0.31514043 0.30753723 0.30011606 0.29287264 0.2858028 0.2789025 0.27216774 0.26559463 0.25917932 0.25291812 0.2468074 0.24084358 0.23502319 0.22934282 0.22379915 0.21838893 0.213109 0.20795624 0.20292763 0.1980202 0.19323109 0.18855745 0.1839965 0.17954558 0.17520206 0.17096333 0.16682692 0.16279036 0.15885127 0.15500727 0.15125613 0.1475956 0.1440235 0.1405377 0.13713613 0.13381676 0.13057762 0.12741679 0.12433237 0.12132251 0.118385434 0.11551938 0.112722635 0.10999353 0.107330434 0.10473175 0.10219594 0.09972147 0.09730686 0.09495068 0.09265151 0.090407975 0.088218726 0.08608246 0.08399789 0.08196377 0.07997888 0.078042045 0.07615208 0.07430787 0.0725083 0.070752285 0.06903879 0.06736677 0.065735236 0.064143196 0.062589705 0.061073825 0.059594646 0.058151282 0.056742866 0.055368554 0.054027516 0.052718956 0.05144208 0.050196122

</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="2.975" PeakHeight="249.142" Num="5" zHalfNm="232.459" Error="1.225">
-40.935 2.21 -1.582 0.856 -0.26
</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="6513.144" A="-1.38299507E11" B="4.2685032E7" C="-3293.473" Error="0.00165"/>
<QuasiParabolic ID="2" StartDistance="6513.144" EndDistance="6546.287" A="0.0" B="-562.1937" C="0.12634261" Error="0.0116"/>
<QuasiParabolic ID="3" StartDistance="6546.287" EndDistance="6579.0" A="4.7069471E10" B="-1.4454608E7" C="1109.7311" Error="0.0116"/>
<QuasiParabolic ID="4" StartDistance="6579.0" EndDistance="6580.0" A="2.44535033E13" B="-7.4339512E9" C="564986.94" Error="9.4E-10"/>
<QuasiParabolic ID="5" StartDistance="6580.0" EndDistance="6585.0" A="7.2804461E12" B="-2.21417677E9" C="168347.58" Error="0.00868"/>
<QuasiParabolic ID="6" StartDistance="6585.0" EndDistance="6589.0" A="1.13967586E13" B="-3.46438579E9" C="263276.12" Error="0.00407"/>
<QuasiParabolic ID="7" StartDistance="6589.0" EndDistance="6605.0" A="2.10986934E13" B="-6.4092739E9" C="486746.16" Error="0.0195"/>
<QuasiParabolic ID="8" StartDistance="6605.0" EndDistance="6616.0" A="-3.1072656E13" B="9.3882583E9" C="-709130.6" Error="0.00749"/>
<QuasiParabolic ID="9" StartDistance="6616.0" EndDistance="6619.142" A="-3.43363761E13" B="1.03748721E10" C="-783693.4" Error="1.01E-5"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="99.431" Depth="0.154"/>
<TopsideChapman PeakHeight="249.142" PeakDensity="109809.24" PeakScaleHeight="12.744" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
