<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-25 -145 22:05:00.000"
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="20.0">
<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: 95% PACIFIC flags: Multiple candidates for F2o cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.25 (145) 22:05:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.22" 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">
FF202614505252205001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.075" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.669" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="14.950" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.725" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.725" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.525" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="222.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="222.500" 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="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.800" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="262.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.725" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.725" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="243.220" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="217.559" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="5.304" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="36.448" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.701" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="19.997" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="29.900" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="4.260" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="55">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
222.500 222.500 222.500 222.500 222.500 223.125 223.750 224.375 225.000 225.625 226.250 226.875 227.500 227.500 227.500 230.000 230.000 232.500 232.500 232.500 232.500 235.000 235.000 235.000 237.500 237.500 238.750 240.000 241.667 243.333 245.000 245.000 245.000 245.000 247.500 250.000 250.000 252.500 255.000 255.000 257.500 260.000 262.500 262.500 270.000 270.000 272.500 277.500 281.737 286.940 293.482 301.958 313.373 329.575 354.376
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
54 60 36 39 36 0 0 0 69 0 0 0 69 69 69 72 75 69 72 72 72 69 69 69 87 90 0 78 0 0 57 66 72 72 72 75 87 87 60 60 60 57 81 81 81 81 84 81 81 78 63 60 57 0 57
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-3.125 -3.125 -3.125 -3.125 -3.125 -3.125 3.125 3.125 3.125 3.125 3.125 -3.125 -3.125 3.125 -3.125 -3.125 3.125 -3.125 3.125 3.125 -3.125 -3.125 3.125 3.125 3.125 -3.125 3.125 3.125 -3.125 -3.125 -3.125 -3.125 3.125 3.125 -3.125 -3.125 -3.125 -3.125 -3.125 3.125 3.125 -3.125 -3.125 -3.125 3.125 -3.125 3.125 3.125 -3.125 3.125 -3.125 -3.125 -3.125 -3.125 3.125
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="468">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 136.25 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 162.5 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 188.75 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 243.22 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0
</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 0.35332385 0.3524629 0.35123456 0.3496469 0.3477836 0.34551057 0.34284618 0.3398121 0.3363646 0.33256927 0.32832938 0.32366115 0.31855893 0.31297255 0.3068771 0.30027556 0.29307804 0.2853064 0.27685073 0.26765716 0.25764734 0.24675402 0.23483722 0.22173925 0.20734549 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 0.20293333 0.2088 0.21466666 0.22053333 0.2264 0.23226666 0.23813333 0.244 0.24986666 0.25573334 0.2616 0.26746666 0.27333334 0.2792 0.28506666 0.29093334 0.2968 0.30266666 0.30853334 0.3144 0.32026666 0.32613334 0.332 0.33786666 0.34373334 0.3496 0.354 0.36028817 0.38872835 0.4230537 0.46363494 0.5099369 0.5607044 0.6145696 0.6705925 0.72831875 0.78764504 0.84871614 0.9118033 0.97728896 1.0456139 1.1172854 1.1929252 1.2732052 1.3589228 1.4509908 1.5504482 1.658405 1.7759603 1.9040043 2.0427723 2.191214 2.346462 2.5038967 2.658068 2.8042886 2.9396856 3.063133 3.174794 3.2754793 3.3662207 3.4480479 3.5219781 3.5888612 3.649421 3.7043066 3.7540483 3.7990942 3.8398216 3.876568 3.9096017 3.9391603 3.9654386 3.9886093 4.008815 4.026173 4.040785 4.05273 4.062076 4.068871 4.073152 4.0749397 4.075 4.0743995 4.0719056 4.067534 4.0613475 4.0534105 4.043788 4.0325437 4.0197415 4.0054455 3.989719 3.9726245 3.954224 3.9345787 3.9137485 3.8917925 3.8687692 3.8447347 3.819745 3.7938547 3.7671165 3.7395823 3.7113023 3.6823254 3.6526992 3.6224697 3.5916817 3.5603783 3.5286012 3.496391 3.4637866 3.4308252 3.3975434 3.363976 3.330156 3.296116 3.2618866 3.227497 3.1929762 3.158351 3.123647 3.0888891 3.054101 3.019305 2.9845226 2.9497743 2.9150789 2.8804553 2.8459208 2.8114917 2.777184 2.7430122 2.70899 2.6751308 2.641447 2.6079502 2.574651 2.54156 2.5086863 2.4760392 2.4436266 2.4114568 2.3795364 2.3478723 2.3164704 2.2853365 2.2544756 2.2238925 2.193591 2.163576 2.1338496 2.104416 2.075277 2.0464356 2.0178938 1.9896531 1.9617151 1.934081 1.9067516 1.8797276 1.8530095 1.8265973 1.8004913 1.7746911 1.7491963 1.7240064 1.6991205 1.6745379 1.6502575 1.6262779 1.602598 1.5792162 1.5561311 1.5333408 1.5108438 1.488638 1.4667217 1.4450924 1.4237485 1.4026875 1.3819073 1.3614056 1.3411798 1.3212279 1.301547 1.282135 1.2629892 1.2441069 1.2254857 1.2071228 1.1890157 1.1711618 1.1535583 1.1362025 1.1190917 1.1022233 1.0855944 1.0692024 1.0530446 1.0371181 1.0214204 1.0059485 0.9907 0.975672 0.96086186 0.9462669 0.9318844 0.9177117 0.9037462 0.88998514 0.876426 0.86306614 0.8499029 0.83693385 0.82415634 0.81156784 0.79916584 0.78694785 0.7749114 0.763054 0.75137323 0.73986673 0.728532 0.7173668 0.70636874 0.69553554 0.68486476 0.6743543 0.6640018 0.65380514 0.643762 0.63387024 0.6241278 0.6145325 0.60508215 0.59577477 0.5866083 0.5775807 0.56868994 0.5599341 0.55131114 0.5428192 0.5344563 0.5262207 0.5181104 0.51012355 0.5022585 0.49451327 0.4868862 0.47937557 0.4719796 0.4646966 0.4575249 0.45046288 0.44350886 0.43666127 0.42991853 0.42327902 0.41674128 0.4103037 0.40396488 0.39772323 0.3915774 0.38552585 0.37956724 0.3737001 0.36792314 0.36223495 0.35663417 0.35111952 0.34568965 0.34034333 0.33507928 0.32989624 0.32479298 0.3197683 0.31482103 0.30994993 0.3051539 0.3004318 0.29578245 0.29120478 0.28669772 0.28226015 0.277891 0.27358928 0.26935393 0.26518393 0.2610783 0.25703603 0.25305617 0.24913774 0.24527985 0.24148153 0.23774187 0.23406 0.230435 0.22686602 0.22335218 0.21989265 0.2164866 0.2131332 0.20983164 0.20658112 0.20338085 0.20023008 0.19712804 0.19407398 0.19106714 0.18810682 0.18519229 0.18232286 0.17949782 0.17671649 0.1739782 0.17128229 0.1686281 0.16601498 0.16344231 0.16090946 0.15841581 0.15596077 0.15354374 0.15116413 0.14882135 0.14651486 0.14424407 0.14200845 0.13980745 0.13764054 0.13550717 0.13340685 0.13133906 0.12930329 0.12729906 0.12532586 0.12338324 0.121470705 0.119587794 0.11773406 0.11590903 0.11411229 0.11234338 0.11060187 0.108887345 0.107199386 0.10553758 0.10390152 0.10229082 0.100705065 0.09914389 0.097606905 0.09609374 0.094604015 0.09313738 0.091693476 0.09027195 0.088872455 0.08749464 0.08613819 0.084802754 0.08348802 0.08219366 0.08091936 0.07966481 0.078429714 0.07721375 0.07601664 0.07483809 0.07367779 0.07253549 0.071410894 0.07030372 0.069213726 0.06814062 0.06708414 0.06604405 0.06502007 0.06401197 0.0630195 0.062042408 0.061080467 0.06013344 0.05920109 0.058283195 0.05737953 0.056489874 0.05561401 0.054751724 0.053902805 0.053067047 0.052244246 0.051434204 0.050636716

</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="4.075" PeakHeight="243.22" Num="5" zHalfNm="217.559" Error="1.577">
-62.363 13.455 -8.352 4.097 -1.307
</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="6506.25" A="-2.20048884E11" B="6.791632E7" C="-5240.3315" Error="0.00141"/>
<QuasiParabolic ID="2" StartDistance="6506.25" EndDistance="6532.5" A="0.0" B="561.3184" C="-0.046261106" Error="0.00835"/>
<QuasiParabolic ID="3" StartDistance="6532.5" EndDistance="6558.0" A="5.5884239E10" B="-1.721503E7" C="1325.7539" Error="0.00835"/>
<QuasiParabolic ID="4" StartDistance="6558.0" EndDistance="6559.0" A="9.4137074E12" B="-2.87108019E9" C="218912.3" Error="0.0"/>
<QuasiParabolic ID="5" StartDistance="6559.0" EndDistance="6568.0" A="8.2396971E12" B="-2.51309542E9" C="191622.72" Error="0.0115"/>
<QuasiParabolic ID="6" StartDistance="6568.0" EndDistance="6575.0" A="1.29313129E13" B="-3.9417239E9" C="300379.47" Error="0.0106"/>
<QuasiParabolic ID="7" StartDistance="6575.0" EndDistance="6589.0" A="4.8136278E13" B="-1.46504581E10" C="1114731.9" Error="0.0354"/>
<QuasiParabolic ID="8" StartDistance="6589.0" EndDistance="6593.0" A="-1.06486693E14" B="3.22832097E10" C="-2446785.0" Error="0.0163"/>
<QuasiParabolic ID="9" StartDistance="6593.0" EndDistance="6613.22" A="-2.12889219E13" B="6.4382925E9" C="-486757.8" Error="0.0116"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="78.75" Depth="0.154"/>
<TopsideChapman PeakHeight="243.22" PeakDensity="206025.12" PeakScaleHeight="19.997" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
