<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-16 -106 22:55:00.000"
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 33 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 65% PACIFIC flags: Multiple candidates for F2x cusp, F2 cusps do not match</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.16 (106) 22:55:00</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">
FF202610604162255001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.325" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.660" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.169" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.425" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.425" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.550" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="215.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="215.000" 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="0.150" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.175" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="275.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.425" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.425" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="238.354" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="213.992" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="5.743" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="34.782" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.085" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="18.859" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="31.150" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.210" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="37">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.425 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
215.000 215.000 217.500 217.500 220.000 220.000 220.000 222.500 222.500 225.000 227.500 227.500 231.250 235.000 236.250 237.500 238.750 240.000 242.500 245.000 247.500 250.000 252.500 255.000 257.500 260.000 265.000 267.500 272.500 272.500 275.000 285.000 287.500 290.000 296.524 304.221 313.438
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
87 90 75 78 75 78 78 78 72 72 72 72 0 72 0 0 0 48 60 0 0 0 75 72 87 87 93 96 93 93 93 93 93 93 96 0 84
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="432">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 134.5 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 183.5 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 238.354 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0
</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 0.35317364 0.35223874 0.35086352 0.34905878 0.3468389 0.3442219 0.3411586 0.33767787 0.33367795 0.32927206 0.3243802 0.3189446 0.3129916 0.30645373 0.29930657 0.29149976 0.28296635 0.27368933 0.26350668 0.2523124 0.24007721 0.22657463 0.21160045 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 0.20628572 0.21257143 0.21885714 0.22514285 0.23142858 0.23771429 0.244 0.2502857 0.25657144 0.26285714 0.26914287 0.27542856 0.2817143 0.288 0.2942857 0.30057144 0.30685714 0.31314287 0.31942856 0.3257143 0.332 0.3382857 0.34457144 0.35085714 0.354 0.3657018 0.39194268 0.42224175 0.45663494 0.4948114 0.53621525 0.5802262 0.6263382 0.67421824 0.7236858 0.77473086 0.8274205 0.8818702 0.93828297 0.99687105 1.0578842 1.1215881 1.1882594 1.2582277 1.3317549 1.4091142 1.4905457 1.576144 1.665887 1.7594931 1.8564296 1.955823 2.0564804 2.1569965 2.2559104 2.3518636 2.4437337 2.5307496 2.6124337 2.6885657 2.7591565 2.824344 2.8843515 2.939419 2.9898288 3.0358474 3.0777273 3.1157146 3.1500123 3.1808145 3.2082937 3.2326016 3.2538626 3.2721941 3.287687 3.3004224 3.310461 3.3178546 3.3226397 3.3248389 3.325 3.3246217 3.3225718 3.3187966 3.3133585 3.3063197 3.2977428 3.2876904 3.2762246 3.2634075 3.2493002 3.2339635 3.2174573 3.1998405 3.181171 3.1615055 3.1409 3.1194081 3.0970838 3.0739782 3.050142 3.0256238 3.0004714 2.9747305 2.948446 2.9216607 2.8944163 2.8667529 2.838709 2.810322 2.7816277 2.7526603 2.7234528 2.6940367 2.6644425 2.6346986 2.6048331 2.5748723 2.5448408 2.514763 2.4846618 2.4545584 2.4244733 2.3944263 2.3644357 2.334519 2.3046923 2.2749717 2.2453713 2.2159052 2.1865861 2.1574266 2.1284375 2.0996299 2.0710135 2.0425973 2.0143902 1.9864 1.9586343 1.9310997 1.9038023 1.8767481 1.8499422 1.8233893 1.7970937 1.7710594 1.7452898 1.7197878 1.6945562 1.6695974 1.6449133 1.6205057 1.5963758 1.5725249 1.5489538 1.5256629 1.5026528 1.4799234 1.4574747 1.4353064 1.4134179 1.3918087 1.370478 1.3494246 1.3286474 1.3081453 1.2879167 1.2679602 1.248274 1.2288566 1.209706 1.1908203 1.1721976 1.1538357 1.1357324 1.1178856 1.100293 1.0829524 1.0658612 1.0490171 1.0324177 1.0160602 0.9999425 0.98406184 0.9684156 0.9530014 0.9378164 0.92285806 0.90812373 0.89361084 0.8793167 0.86523867 0.85137403 0.8377202 0.82427454 0.8110344 0.79799706 0.78516 0.77252054 0.7600761 0.7478241 0.7357618 0.7238869 0.7121967 0.70068866 0.68936026 0.67820907 0.6672326 0.6564283 0.64579374 0.6353266 0.6250245 0.614885 0.60490566 0.5950843 0.5854186 0.5759062 0.5665449 0.5573325 0.5482667 0.53934544 0.53056645 0.52192765 0.51342696 0.5050622 0.49683145 0.4887326 0.48076364 0.4729226 0.46520755 0.4576165 0.4501476 0.44279897 0.43556872 0.42845502 0.4214561 0.41457015 0.4077954 0.40113014 0.39457268 0.38812128 0.38177434 0.37553015 0.36938715 0.36334372 0.3573983 0.35154933 0.34579533 0.34013474 0.3345661 0.32908794 0.32369888 0.31839743 0.3131822 0.30805188 0.30300507 0.29804042 0.29315665 0.28835246 0.28362656 0.2789777 0.27440464 0.26990616 0.2654811 0.26112825 0.25684643 0.25263453 0.24849139 0.24441594 0.24040706 0.23646368 0.23258476 0.22876923 0.22501607 0.2213243 0.21769288 0.21412088 0.21060729 0.2071512 0.20375167 0.20040777 0.19711861 0.1938833 0.19070095 0.1875707 0.18449174 0.18146318 0.17848425 0.17555411 0.17267197 0.16983707 0.16704862 0.16430587 0.16160806 0.15895447 0.1563444 0.1537771 0.1512519 0.1487681 0.14632504 0.14392203 0.14155844 0.1392336 0.1369469 0.13469772 0.13248542 0.13030943 0.12816913 0.12606394 0.12399331 0.12195664 0.1199534 0.11798303 0.116045 0.11413877 0.11226383 0.11041966 0.108605765 0.10682164 0.105066806 0.103340775 0.101643085 0.09997326 0.098330855 0.09671541 0.095126495 0.09356366 0.092026494 0.09051456 0.08902746 0.087564774 0.08612611 0.084711075 0.08331927 0.08195033 0.08060387 0.07927952 0.07797692 0.07669571 0.07543555 0.074196085 0.072976984 0.0717779 0.07059851 0.0694385 0.068297535 0.06717532 0.06607153 0.064985886 0.06391806 0.06286778 0.06183476 0.060818706 0.059819344 0.0588364 0.057869602 0.056918688 0.055983394 0.055063467 0.054158654 0.05326871 0.05239338 0.051532436 0.050685633

</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="3.325" PeakHeight="238.354" Num="5" zHalfNm="213.992" Error="2.209">
-59.384 8.076 -5.211 2.539 -0.874
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="11" 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="6504.5" A="-2.52482355E11" B="7.7926656E7" C="-6012.734" Error="0.00135"/>
<QuasiParabolic ID="2" StartDistance="6504.5" EndDistance="6529.0" A="0.0" B="316.62576" C="-0.008669084" Error="0.00434"/>
<QuasiParabolic ID="3" StartDistance="6529.0" EndDistance="6531.0" A="-7.6089177E11" B="2.3291296E8" C="-17823.92" Error="0.0185"/>
<QuasiParabolic ID="4" StartDistance="6531.0" EndDistance="6548.0" A="1.12101687E11" B="-3.4425416E7" C="2642.959" Error="0.0184"/>
<QuasiParabolic ID="5" StartDistance="6548.0" EndDistance="6552.0" A="-2.39805678E11" B="7.306004E7" C="-5564.5435" Error="0.00544"/>
<QuasiParabolic ID="6" StartDistance="6552.0" EndDistance="6560.0" A="5.5817032E12" B="-1.70395738E9" C="130044.23" Error="0.0161"/>
<QuasiParabolic ID="7" StartDistance="6560.0" EndDistance="6566.0" A="6.7457348E12" B="-2.05884493E9" C="157093.6" Error="0.00147"/>
<QuasiParabolic ID="8" StartDistance="6566.0" EndDistance="6573.0" A="1.28446471E13" B="-3.91657037E9" C="298559.12" Error="0.00861"/>
<QuasiParabolic ID="9" StartDistance="6573.0" EndDistance="6583.0" A="2.63581367E13" B="-8.0283884E9" C="611340.0" Error="0.00468"/>
<QuasiParabolic ID="10" StartDistance="6583.0" EndDistance="6608.354" A="-1.75421658E13" B="5.3090877E9" C="-401684.12" Error="0.00696"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="73.5" Depth="0.154"/>
<TopsideChapman PeakHeight="238.354" PeakDensity="137166.56" PeakScaleHeight="18.859" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
