<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-13 -103 05:05:00.000"
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 11 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 90% PACIFIC flags: Multiple candidates for F2x cusp, Multiple candidates for F2o cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.13 (103) 05:05:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.98" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202610304130505001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.375" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.611" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.187" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.575" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.575" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.700" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="250.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="250.000" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.325" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="298.490" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.575" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.575" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="254.772" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="236.001" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.383" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="26.883" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.861" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.147" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="26.560" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.170" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="33">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
250.000 252.500 252.500 252.500 252.500 255.000 256.667 258.333 260.000 258.750 257.500 259.038 260.577 262.115 263.654 265.192 266.731 268.269 269.808 271.346 272.885 274.423 275.962 277.500 280.000 282.500 285.000 287.500 290.714 294.349 298.490 303.254 308.791
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
72 69 69 75 72 69 0 0 69 0 45 0 0 0 0 0 0 0 0 0 0 0 0 93 0 93 90 0 0 90 90 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="379">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 142.66667 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 175.33333 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 254.772 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0
</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 0.35298675 0.35220242 0.35119912 0.34998095 0.3485529 0.34684834 0.3448765 0.3427189 0.34031472 0.33767694 0.33475268 0.3315615 0.3281247 0.32440233 0.3203629 0.31604326 0.3114253 0.3064471 0.3011715 0.2954905 0.2894757 0.282966 0.27603868 0.26865014 0.2607728 0.25231564 0.24324727 0.23349129 0.22299255 0.211631 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 0.20314285 0.20785715 0.21257143 0.21728571 0.222 0.22671428 0.23142858 0.23614286 0.24085714 0.24557143 0.2502857 0.255 0.25971428 0.2644286 0.26914287 0.27385715 0.27857143 0.2832857 0.288 0.2927143 0.29742858 0.30214286 0.30685714 0.31157142 0.3162857 0.321 0.3257143 0.33042857 0.33514285 0.33985713 0.34457144 0.34928572 0.354 0.39215663 0.43172586 0.47311115 0.51663774 0.5625863 0.6111972 0.66267896 0.7172163 0.7749863 0.83610266 0.9006734 0.96874607 1.0403433 1.1153942 1.1938163 1.2754576 1.360114 1.4474906 1.5373131 1.629189 1.7227317 1.8175148 1.913099 2.008996 2.1047513 2.1998806 2.2939281 2.3864202 2.4769125 2.5649862 2.6502073 2.732202 2.8105805 2.8849912 2.9551249 3.0206535 3.0813081 3.1368234 3.1869621 3.2315269 3.2703245 3.3031952 3.330008 3.3506477 3.3650327 3.3731067 3.375 3.3749146 3.372562 3.3670962 3.3586674 3.3474252 3.3335204 3.3171024 3.2983193 3.2773175 3.2542403 3.2292285 3.2024188 3.1739447 3.1439354 3.112516 3.0798068 3.0459237 3.0109785 2.9750772 2.9383218 2.9008095 2.8626328 2.823879 2.7846317 2.7449698 2.7049673 2.6646943 2.6242168 2.5835967 2.5428922 2.5021574 2.4614432 2.4207966 2.380262 2.3398795 2.2996874 2.2597206 2.220011 2.1805882 2.1414793 2.102709 2.0643 2.0262725 1.9886452 1.9514344 1.914655 1.8783201 1.8424416 1.8070294 1.7720923 1.7376381 1.7036729 1.6702021 1.6372298 1.6047593 1.5727929 1.5413321 1.5103778 1.4799297 1.4499874 1.4205496 1.3916146 1.3631799 1.3352429 1.3078002 1.2808483 1.2543833 1.2284008 1.2028962 1.1778648 1.1533014 1.1292007 1.1055573 1.0823654 1.0596194 1.0373132 1.015441 0.9939964 0.97297335 0.9523657 0.932167 0.912371 0.8929713 0.8739615 0.8553353 0.83708626 0.8192081 0.8016944 0.7845389 0.7677353 0.7512774 0.735159 0.7193739 0.703916 0.6887794 0.673958 0.659446 0.6452375 0.63132674 0.61770797 0.60437566 0.5913242 0.57854813 0.5660421 0.5538007 0.5418188 0.53009117 0.51861274 0.5073785 0.49638358 0.4856231 0.47509232 0.4647866 0.4547013 0.4448319 0.43517402 0.42572325 0.41647533 0.40742606 0.3985713 0.38990706 0.3814293 0.37313417 0.36501783 0.3570765 0.34930655 0.34170437 0.3342664 0.32698914 0.31986928 0.3129034 0.3060883 0.29942074 0.29289758 0.28651574 0.28027225 0.27416414 0.26818848 0.26234248 0.25662336 0.2510284 0.24555492 0.24020034 0.23496209 0.22983767 0.22482464 0.2199206 0.2151232 0.21043015 0.20583919 0.20134811 0.19695479 0.19265707 0.18845293 0.18434031 0.18031725 0.17638181 0.1725321 0.16876625 0.16508244 0.1614789 0.1579539 0.15450573 0.15113272 0.14783323 0.14460568 0.14144851 0.13836017 0.13533919 0.13238408 0.12949343 0.12666583 0.123899914 0.12119433 0.11854778 0.11595897 0.11342664 0.110949576 0.10852656 0.106156416 0.103838004 0.10157019 0.09935187 0.09718197 0.09505943 0.09298322 0.09095234 0.08896579 0.08702261 0.08512185 0.083262585 0.08144392 0.07966496 0.07792484 0.07622272 0.07455776 0.07292915 0.07133611 0.06977786 0.06825364 0.06676269 0.06530431 0.063877776 0.062482398 0.061117493 0.059782397 0.05847646 0.057199042 0.055949524 0.054727297 0.053531766 0.052362345 0.05121847 0.050099574

</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="3.375" PeakHeight="254.772" Num="5" zHalfNm="236.001" Error="0.658">
-47.357 0.907 -0.547 0.176 0.049
</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="6512.667" A="-1.42344143E11" B="4.3933376E7" C="-3389.796" Error="0.00162"/>
<QuasiParabolic ID="2" StartDistance="6512.667" EndDistance="6545.333" A="0.0" B="-1460.8862" C="0.26434213" Error="0.0287"/>
<QuasiParabolic ID="3" StartDistance="6545.333" EndDistance="6572.0" A="6.4926142E10" B="-1.9903366E7" C="1525.3892" Error="0.0287"/>
<QuasiParabolic ID="4" StartDistance="6572.0" EndDistance="6576.0" A="-2.17868272E11" B="6.6157016E7" C="-5022.1143" Error="0.00374"/>
<QuasiParabolic ID="5" StartDistance="6576.0" EndDistance="6580.0" A="7.0101605E12" B="-2.13214861E9" C="162123.98" Error="0.0311"/>
<QuasiParabolic ID="6" StartDistance="6580.0" EndDistance="6586.0" A="6.5159582E12" B="-1.9819351E9" C="150709.6" Error="0.0081"/>
<QuasiParabolic ID="7" StartDistance="6586.0" EndDistance="6607.0" A="1.75206459E13" B="-5.323778E9" C="404417.66" Error="0.0395"/>
<QuasiParabolic ID="8" StartDistance="6607.0" EndDistance="6616.0" A="-1.07379268E13" B="3.23035341E9" C="-242936.0" Error="0.00482"/>
<QuasiParabolic ID="9" StartDistance="6616.0" EndDistance="6624.772" A="-3.9208794E13" B="1.18370243E10" C="-893379.6" Error="0.00199"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="98.0" Depth="0.154"/>
<TopsideChapman PeakHeight="254.772" PeakDensity="141322.89" PeakScaleHeight="14.147" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
