<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-21 -294 01:55:00.000"
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: F2x cusp not found, 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" >
2026.10.21 (294) 01:55:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.32" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-16.06" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="62.486557" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202629410210155001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="8.175" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.526" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="28.823" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="6.775" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="6.775" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="8.450" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="300.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="300.000" 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="8.125" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="315.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="6.775" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="6.775" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="277.817" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="260.076" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="6.317" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="26.272" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="4.719" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="13.145" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="27.310" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.720" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="57">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 7.425 7.45 7.475 7.5 7.525 7.55 7.575 7.6 7.625 7.65 7.675 7.7 7.725 7.75 7.775 7.8 7.825 7.85 7.875 7.9 7.925 7.95 7.975 8.0 8.025 8.05 8.075 8.1 8.125 8.15 8.175
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
300.000 300.000 300.000 300.625 301.250 301.875 302.500 302.500 302.632 302.763 302.895 303.026 303.158 303.289 303.421 303.553 303.684 303.816 303.947 304.079 304.211 304.342 304.474 304.605 304.737 304.868 305.000 305.000 305.417 305.833 306.250 306.667 307.083 307.500 312.500 312.500 307.500 310.000 310.000 310.000 310.000 310.000 310.000 310.000 311.250 312.500 313.750 315.000 315.000 312.500 310.000 311.250 312.500 313.750 315.000 317.500 320.000
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
93 0 93 0 0 0 84 84 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 96 96 0 0 0 0 0 93 93 93 93 93 93 0 0 0 93 93 0 0 0 93 93 93 81 0 0 0 90 90 90
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="425">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 145.94333 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 181.88667 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 217.83 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 277.817 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0
</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 0.35362422 0.35313663 0.35250106 0.3517192 0.3507191 0.3495048 0.3480813 0.34652674 0.3447023 0.34275928 0.3405635 0.33819562 0.33556396 0.33275077 0.32973665 0.32647422 0.32298505 0.31923187 0.31524387 0.31099537 0.30646995 0.3016611 0.29654828 0.29112688 0.28538695 0.2793415 0.27279425 0.26593426 0.2586261 0.2508112 0.24242537 0.23360056 0.22405197 0.21385807 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 0.2 0.2 0.2 0.20048557 0.2047701 0.20905462 0.21333915 0.21762367 0.22190818 0.22619271 0.23047723 0.23476176 0.23904628 0.24333079 0.24761532 0.25189984 0.25618437 0.2604689 0.2647534 0.26903793 0.27332246 0.27760696 0.2818915 0.28617603 0.29046053 0.29474506 0.2990296 0.30331412 0.30759862 0.31188315 0.31616768 0.32045218 0.3247367 0.32902125 0.33330575 0.33759028 0.3418748 0.34615934 0.35044384 0.354 0.36535212 0.42264107 0.47453412 0.52585214 0.57841843 0.633304 0.69127417 0.75299525 0.81903464 0.8899442 0.9661868 1.0482177 1.1363835 1.2309499 1.3320867 1.4397902 1.5540204 1.6745217 1.8009882 1.9330425 2.0702188 2.2120886 2.3582134 2.5081687 2.6615214 2.8180013 2.9772537 3.1390488 3.3031461 3.4693673 3.637528 3.8075378 3.9792747 4.1525817 4.327384 4.503631 4.6811604 4.8598614 5.0396914 5.2204347 5.401984 5.5841413 5.7666664 5.949232 6.1315765 6.3132014 6.4936256 6.672189 6.8480935 7.0203953 7.1879416 7.3492785 7.502791 7.646472 7.778088 7.895146 7.995018 8.075056 8.132831 8.166404 8.175 8.174846 8.168656 8.153752 8.130586 8.09961 8.061279 8.016044 7.964348 7.9066305 7.84332 7.7748337 7.7015786 7.623947 7.5423193 7.4570594 7.368518 7.2770295 7.1829143 7.086476 6.9880037 6.887771 6.786037 6.6830454 6.5790257 6.4741936 6.3687515 6.262888 6.1567793 6.05059 5.944472 5.838567 5.733005 5.6279073 5.5233836 5.4195366 5.3164587 5.2142344 5.1129413 5.012648 4.9134183 4.8153076 4.7183666 4.622639 4.5281653 4.434979 4.343109 4.2525816 4.163417 4.075633 3.989244 3.90426 3.820689 3.7385361 3.6578038 3.5784922 3.5005991 3.424121 3.3490515 3.2753837 3.2031088 3.1322162 3.0626945 2.9945314 2.9277134 2.8622255 2.7980533 2.7351801 2.67359 2.6132655 2.5541892 2.4963434 2.4397094 2.384269 2.3300033 2.2768931 2.2249198 2.174064 2.1243064 2.0756278 2.028009 1.9814306 1.9358739 1.8913194 1.8477484 1.805142 1.7634817 1.722749 1.6829255 1.643993 1.6059338 1.5687302 1.5323646 1.49682 1.462079 1.4281253 1.3949422 1.3625133 1.330823 1.299855 1.2695943 1.2400255 1.2111337 1.1829041 1.1553224 1.1283745 1.1020463 1.0763241 1.0511947 1.026645 1.0026618 0.97923285 0.9563456 0.933988 0.91214806 0.8908141 0.8699749 0.84961915 0.829736 0.8103146 0.7913446 0.77281564 0.7547177 0.737041 0.71977586 0.70291287 0.68644285 0.67035675 0.6546458 0.63930136 0.62431496 0.6096784 0.5953836 0.5814227 0.56778795 0.5544718 0.54146695 0.52876616 0.51636237 0.5042487 0.49241844 0.480865 0.46958196 0.45856303 0.4478021 0.4372931 0.42703027 0.4170078 0.40722013 0.39766175 0.38832736 0.37921172 0.37030974 0.36161643 0.35312688 0.3448364 0.33674031 0.32883406 0.32111323 0.31357345 0.30621055 0.29902035 0.2919988 0.285142 0.27844608 0.27190727 0.26552188 0.2592863 0.2531971 0.24725078 0.24144402 0.23577355 0.23023617 0.22482876 0.2195483 0.21439178 0.20935632 0.20443907 0.19963726 0.1949482 0.19036922 0.18589774 0.18153127 0.1772673 0.17310347 0.1690374 0.16506682 0.16118948 0.15740319 0.1537058 0.15009527 0.1465695 0.14312655 0.13976446 0.13648131 0.13327529 0.13014455 0.12708735 0.12410195 0.12118667 0.11833986 0.11555992 0.112845264 0.11019438 0.107605755 0.10507794 0.10260949 0.10019903 0.09784518 0.09554663 0.09330207 0.09111023 0.08896988 0.086879805 0.08483882 0.082845785 0.08089957 0.078999065 0.0771432 0.07533094 0.07356125 0.071833126 0.0701456 0.06849772 0.06688855 0.06531718 0.063782714 0.062284306 0.060821094 0.05939226 0.057996985 0.05663449 0.055304002 0.05400477 0.05273606 0.05149715 0.050287347

</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="8.175" PeakHeight="277.817" Num="5" zHalfNm="260.076" Error="1.612">
-57.14 -5.805 3.979 -1.891 0.87
</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="6515.943" A="-1.17677703E11" B="3.632028E7" C="-2802.3652" Error="0.00182"/>
<QuasiParabolic ID="2" StartDistance="6515.943" EndDistance="6551.887" A="0.0" B="-1824.4362" C="0.32003742" Error="0.0394"/>
<QuasiParabolic ID="3" StartDistance="6551.887" EndDistance="6587.0" A="5.5041704E10" B="-1.685667E7" C="1290.6279" Error="0.0394"/>
<QuasiParabolic ID="4" StartDistance="6587.0" EndDistance="6590.0" A="1.78336249E13" B="-5.4149386E9" C="411043.3" Error="0.064"/>
<QuasiParabolic ID="5" StartDistance="6590.0" EndDistance="6596.0" A="5.3151903E12" B="-1.61571738E9" C="122786.77" Error="0.0556"/>
<QuasiParabolic ID="6" StartDistance="6596.0" EndDistance="6601.0" A="2.32733582E13" B="-7.0608865E9" C="535549.75" Error="0.0317"/>
<QuasiParabolic ID="7" StartDistance="6601.0" EndDistance="6637.0" A="5.9407644E13" B="-1.80090122E10" C="1364827.5" Error="0.0748"/>
<QuasiParabolic ID="8" StartDistance="6637.0" EndDistance="6643.0" A="-8.6506002E13" B="2.5960747E10" C="-1947645.0" Error="0.00267"/>
<QuasiParabolic ID="9" StartDistance="6643.0" EndDistance="6647.817" A="-3.82801476E14" B="1.15166069E11" C="-8661880.0" Error="0.00103"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="107.83" Depth="0.154"/>
<TopsideChapman PeakHeight="277.817" PeakDensity="829164.06" PeakScaleHeight="13.145" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
