<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-02-01 -032 03:25:00.000"
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: F2o cusp not found, Multiple candidates for F2x cusp, Multiple candidates for F2o cusp, One of F2 cusps was derived from the other, Unidentified traces above foF2, Trace overlaps while constructing baseline</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.02.01 (032) 03:25:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.15" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.95" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="85.88234" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202603202010325001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="6.250" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.722" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="23.265" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.450" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.450" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="6.550" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="235.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="235.000" 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="6.225" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="288.409" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.450" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.450" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="251.336" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="236.451" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="4.793" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="22.173" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="2.362" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="11.061" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="24.510" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.440" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="153">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
235.000 237.500 237.500 237.500 240.000 238.750 237.500 237.500 237.500 237.500 237.500 240.000 240.000 240.000 240.000 240.000 240.000 240.000 240.000 240.500 241.000 241.500 242.000 242.500 244.167 245.833 247.500 245.000 242.500 242.500 245.000 247.500 245.000 242.500 242.500 242.500 247.500 247.500 247.500 246.250 245.000 245.000 245.000 245.000 245.000 245.000 245.000 247.500 247.500 247.500 250.000 250.000 250.000 250.000 248.750 247.500 247.500 247.500 247.500 247.500 247.500 247.500 247.500 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 252.500 252.500 252.500 252.500 252.500 252.500 252.500 255.000 257.500 256.667 255.833 255.000 260.000 255.000 255.000 255.000 255.000 255.000 255.000 255.000 255.000 255.000 255.000 255.000 255.000 255.000 257.500 257.500 257.500 257.500 257.500 257.500 257.500 257.500 258.750 260.000 261.250 262.500 261.667 260.833 260.000 265.000 260.000 262.500 262.500 262.500 262.500 262.500 262.500 262.500 262.500 262.500 262.500 262.500 262.500 265.000 265.000 265.000 265.000 265.000 265.000 265.000 265.000 267.500 267.500 267.500 270.000 268.750 280.000 281.667 283.333 285.000 285.379 285.758 286.136 286.515 286.894 287.273 287.652 288.030 288.409 288.788
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 81 78 78 69 0 78 78 78 75 75 75 78 66 66 54 54 0 69 0 0 0 0 84 0 0 0 0 108 0 78 0 0 99 96 96 87 93 0 87 99 90 87 87 87 87 87 87 87 84 0 75 0 0 0 87 99 102 111 111 111 84 84 111 105 105 108 96 96 99 102 93 96 99 99 99 96 93 87 63 0 0 66 87 90 69 72 93 93 96 93 96 96 90 0 102 108 111 114 81 81 78 78 111 111 57 0 96 0 63 60 102 99 108 0 0 0 102 108 75 75 72 69 108 111 111 108 69 0 0 66 96 105 69 63 102 102 0 0 0 0 90 0 0 0 0 0 0 0 0 0 0 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 -4.6875 -1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="351">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 139.16667 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 168.33333 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 197.5 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 251.336 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0
</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 0.35347393 0.352762 0.35175505 0.3505324 0.3489521 0.3470975 0.34497866 0.3425364 0.33978727 0.33674988 0.3333779 0.32963315 0.32561377 0.321167 0.3164043 0.31120363 0.30563802 0.29957724 0.29311055 0.28615454 0.27862445 0.27052397 0.26174292 0.2523066 0.24211602 0.23105234 0.21895285 0.20588575 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 0.20352 0.2088 0.21408 0.21936 0.22464 0.22992 0.2352 0.24048 0.24576 0.25104 0.25632 0.2616 0.26688 0.27216 0.27744 0.28272 0.288 0.29328 0.29856 0.30384 0.30912 0.3144 0.31968 0.32496 0.33024 0.33552 0.3408 0.34608 0.35136 0.354 0.37814456 0.42871112 0.48262838 0.5401164 0.60126793 0.666128 0.7346313 0.806681 0.8821603 0.96091366 1.0428091 1.1277072 1.2154809 1.3059949 1.3991627 1.4948863 1.5931107 1.693765 1.7967976 1.9021888 2.0099123 2.1199484 2.2322965 2.3469527 2.4639351 2.5832317 2.704896 2.8289065 2.955313 3.0841122 3.2153158 3.3489306 3.4850068 3.6234968 3.7644086 3.9076972 4.0533047 4.2011566 4.351109 4.502966 4.656487 4.811277 4.966837 5.122494 5.2772646 5.4299374 5.578794 5.7216053 5.855542 5.9769807 6.0816126 6.164665 6.2214475 6.2481737 6.25 6.247828 6.236624 6.216398 6.1877313 6.151206 6.107399 6.056877 6.0001945 5.93789 5.8704844 5.798478 5.722351 5.6425605 5.5595403 5.4737015 5.3854313 5.2950945 5.2030315 5.1095614 5.01498 4.9195623 4.8235636 4.727218 4.630742 4.534333 4.4381723 4.3424244 4.247238 4.1527495 4.059079 3.9663367 3.8746192 3.7840128 3.6945934 3.6064274 3.5195727 3.4340787 3.3499873 3.267334 3.1861477 3.106451 3.028262 2.9515932 2.8764532 2.8028464 2.7307737 2.6602325 2.5912173 2.5237198 2.4577296 2.3932338 2.330218 2.268666 2.2085602 2.1498811 2.092609 2.0367222 1.9821994 1.9290178 1.877154 1.8265843 1.7772851 1.7292316 1.6823995 1.636764 1.5923008 1.5489848 1.5067915 1.4656963 1.4256749 1.3867031 1.348757 1.3118126 1.2758467 1.2408359 1.2067577 1.1735891 1.1413084 1.1098934 1.079323 1.0495762 1.0206319 0.9924702 0.9650711 0.93841517 0.9124833 0.8872568 0.8627174 0.8388473 0.81562895 0.7930452 0.77107954 0.7497155 0.7289372 0.708729 0.6890759 0.66996294 0.6513757 0.63330007 0.61572236 0.59862906 0.58200717 0.5658439 0.55012685 0.5348439 0.51998335 0.5055336 0.49148348 0.47782212 0.4645389 0.45162347 0.43906578 0.42685604 0.41498467 0.40344244 0.39222026 0.38130936 0.37070116 0.36038736 0.3503598 0.34061065 0.33113217 0.32191697 0.3129577 0.30424735 0.295779 0.28754598 0.2795418 0.27176008 0.2641947 0.25683963 0.2496891 0.24273743 0.23597908 0.2294087 0.22302109 0.21681117 0.21077402 0.20490482 0.19919895 0.19365184 0.1882591 0.18301643 0.17791967 0.17296478 0.16814779 0.16346489 0.15891233 0.1544865 0.1501839 0.14600107 0.1419347 0.13798153 0.13413844 0.13040234 0.12677027 0.123239346 0.11980673 0.116469696 0.113225594 0.11007183 0.10700589 0.10402533 0.10112777 0.09831091 0.095572494 0.09291035 0.09032234 0.08780641 0.08536056 0.082982816 0.0806713 0.07842417 0.07623963 0.07411593 0.072051376 0.07004433 0.068093196 0.0661964 0.06435243 0.06255983 0.06081716 0.05912303 0.05747609 0.055875022 0.05431855 0.05280544 0.05133447

</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="6.25" PeakHeight="251.336" Num="5" zHalfNm="236.451" Error="0.616">
-49.196 -8.71 5.378 -1.558 0.25
</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="6509.167" A="-1.78385355E11" B="5.5057208E7" C="-4248.116" Error="0.00152"/>
<QuasiParabolic ID="2" StartDistance="6509.167" EndDistance="6538.333" A="0.0" B="-266.87756" C="0.08101767" Error="0.00501"/>
<QuasiParabolic ID="3" StartDistance="6538.333" EndDistance="6540.0" A="1.06096519E12" B="-3.24560288E8" C="24821.635" Error="0.0144"/>
<QuasiParabolic ID="4" StartDistance="6540.0" EndDistance="6567.0" A="3.5476189E10" B="-1.0955099E7" C="845.70105" Error="0.02"/>
<QuasiParabolic ID="5" StartDistance="6567.0" EndDistance="6568.0" A="2.9850008E13" B="-9.0910618E9" C="692189.3" Error="0.0"/>
<QuasiParabolic ID="6" StartDistance="6568.0" EndDistance="6569.0" A="7.6911524E12" B="-2.34354227E9" C="178523.08" Error="0.0"/>
<QuasiParabolic ID="7" StartDistance="6569.0" EndDistance="6576.0" A="1.10140661E13" B="-3.35523789E9" C="255528.36" Error="0.0196"/>
<QuasiParabolic ID="8" StartDistance="6576.0" EndDistance="6590.0" A="2.33973188E13" B="-7.1214341E9" C="541887.56" Error="0.0193"/>
<QuasiParabolic ID="9" StartDistance="6590.0" EndDistance="6611.0" A="4.9063559E13" B="-1.49108849E10" C="1132892.9" Error="0.0158"/>
<QuasiParabolic ID="10" StartDistance="6611.0" EndDistance="6617.0" A="2.78978442E12" B="-9.1186029E8" C="74125.38" Error="0.00616"/>
<QuasiParabolic ID="11" StartDistance="6617.0" EndDistance="6621.336" A="-3.46803812E14" B="1.04753422E11" C="-7910254.5" Error="0.00195"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="87.5" Depth="0.154"/>
<TopsideChapman PeakHeight="251.336" PeakDensity="484646.4" PeakScaleHeight="11.061" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
