<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-26 -146 07:35:00.000"
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: 95% PACIFIC flags: Multiple candidates for F2x cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.26 (146) 07:35:00</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">
FF202614605260735001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.400" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.354" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="8.049" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.000" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.000" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="2.675" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="282.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="282.500" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.300" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="323.440" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.000" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.000" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="278.814" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="250.555" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.360" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="40.159" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.662" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="21.382" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="39.790" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.220" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="17">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.0 2.025 2.05 2.075 2.1 2.125 2.15 2.175 2.2 2.225 2.25 2.275 2.3 2.325 2.35 2.375 2.4
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
282.500 285.000 287.500 291.250 295.000 296.250 297.500 300.000 307.500 310.000 312.500 317.581 323.440 330.267 338.327 347.986 359.772
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
81 0 78 0 69 0 90 78 81 0 69 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 -7.8125 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="489">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 144.709 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 179.418 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 214.127 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 278.814 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0
</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 0.3524263 0.35157037 0.35042325 0.34913787 0.34764504 0.34595087 0.34406236 0.3419169 0.3395262 0.3369714 0.33419585 0.33114892 0.32791504 0.32438612 0.32059017 0.31655675 0.31225985 0.30762804 0.30276692 0.2975232 0.2919518 0.2860701 0.2798082 0.27306658 0.26596683 0.25836518 0.2502431 0.24155849 0.23226465 0.22233948 0.2116497 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 0.20258227 0.20701917 0.21145605 0.21589294 0.22032982 0.22476672 0.22920361 0.23364049 0.23807739 0.24251428 0.24695116 0.25138804 0.25582495 0.26026183 0.2646987 0.26913562 0.2735725 0.27800938 0.2824463 0.28688318 0.29132006 0.29575694 0.30019385 0.30463073 0.3090676 0.31350452 0.3179414 0.32237828 0.3268152 0.33125207 0.33568895 0.34012586 0.34456274 0.34899962 0.35343653 0.354 0.37320387 0.39592323 0.41943526 0.4437594 0.4689191 0.49493754 0.5218409 0.5496467 0.5783749 0.60806084 0.6387053 0.67033744 0.70296526 0.7366025 0.7712608 0.8069243 0.8436117 0.88129485 0.9199716 0.9596055 1.0001781 1.0416371 1.0839356 1.1270206 1.1708124 1.2152544 1.260241 1.3056846 1.3514787 1.3975242 1.443697 1.489888 1.5359658 1.5818136 1.6273072 1.6723228 1.7167367 1.7604415 1.8033123 1.8452578 1.8861676 1.9259423 1.9644971 2.0017636 2.037646 2.0720923 2.105035 2.1364148 2.1661854 2.1943064 2.2207336 2.2454343 2.2683775 2.2895381 2.3088944 2.3264217 2.3421082 2.3559346 2.367895 2.3779747 2.386167 2.3924673 2.396869 2.3993695 2.4 2.3999822 2.3992872 2.3976028 2.3949594 2.3913882 2.3869195 2.3815846 2.3754148 2.3684404 2.3606925 2.3522015 2.3429978 2.333111 2.322571 2.3114069 2.2996473 2.2873206 2.2744544 2.261076 2.247212 2.2328885 2.2181308 2.202964 2.1874123 2.1714993 2.155248 2.1386805 2.1218185 2.1046834 2.0872955 2.0696743 2.051839 2.0338085 2.0156 1.9972311 1.9787184 1.9600779 1.9413248 1.9224743 1.9035404 1.8845369 1.8654767 1.8463727 1.8272369 1.8080808 1.7889154 1.7697514 1.7505988 1.7314671 1.7123657 1.6933032 1.6742879 1.6553278 1.6364303 1.6176025 1.5988511 1.5801826 1.561603 1.5431178 1.5247326 1.5064523 1.4882817 1.4702252 1.4522871 1.4344711 1.4167811 1.3992201 1.3817916 1.3644984 1.3473432 1.3303283 1.3134563 1.2967291 1.2801486 1.2637166 1.2474345 1.2313037 1.2153256 1.199501 1.1838312 1.1683166 1.1529582 1.1377563 1.1227115 1.107824 1.093094 1.0785217 1.0641071 1.04985 1.0357504 1.0218079 1.0080222 0.994393 0.9809197 0.9676019 0.95443887 0.94143003 0.9285746 0.9158719 0.90332115 0.89092135 0.8786717 0.8665713 0.8546191 0.842814 0.83115524 0.8196415 0.8082717 0.7970449 0.7859597 0.7750151 0.7642099 0.7535429 0.7430128 0.7326184 0.7223584 0.71223164 0.7022368 0.69237256 0.6826377 0.67303085 0.6635508 0.65419614 0.64496565 0.635858 0.6268718 0.6180059 0.6092588 0.60062927 0.592116 0.5837177 0.575433 0.56726074 0.55919945 0.55124795 0.54340494 0.5356691 0.52803916 0.52051383 0.513092 0.5057722 0.4985533 0.49143407 0.48441324 0.47748962 0.470662 0.46392915 0.45728987 0.45074305 0.44428742 0.43792188 0.43164524 0.42545637 0.41935414 0.41333744 0.40740514 0.40155616 0.39578936 0.39010373 0.38449812 0.37897155 0.3735229 0.36815122 0.36285543 0.3576345 0.35248747 0.3474133 0.34241107 0.33747977 0.33261845 0.32782614 0.32310194 0.3184449 0.3138541 0.30932868 0.30486766 0.30047023 0.29613551 0.2918626 0.2876507 0.2834989 0.27940646 0.27537248 0.27139616 0.26747674 0.2636134 0.25980535 0.25605187 0.25235215 0.24870543 0.24511102 0.24156815 0.2380761 0.23463419 0.23124167 0.22789788 0.22460212 0.22135371 0.218152 0.21499631 0.211886 0.20882043 0.20579898 0.202821 0.19988589 0.19699305 0.19414186 0.19133174 0.18856211 0.1858324 0.183142 0.18049042 0.17787705 0.17530139 0.17276287 0.17026097 0.16779517 0.16536495 0.1629698 0.16060923 0.15828274 0.15598986 0.15373006 0.15150292 0.14930795 0.1471447 0.14501269 0.14291151 0.14084068 0.13879979 0.13678838 0.13480607 0.13285242 0.13092701 0.12902945 0.12715934 0.12531628 0.12349987 0.12170974 0.11994552 0.118206814 0.11649328 0.11480453 0.113140225 0.11150001 0.10988353 0.108290456 0.10672044 0.105173156 0.103648275 0.10214547 0.10066443 0.09920483 0.09776638 0.09634875 0.09495165 0.09357479 0.09221788 0.09088062 0.08956273 0.08826393 0.08698395 0.08572251 0.084479354 0.0832542 0.08204681 0.080856904 0.07968425 0.07852858 0.077389665 0.07626725 0.07516111 0.07407099 0.07299668 0.07193794 0.07089454 0.06986627 0.0688529 0.067854226 0.06687002 0.06590009 0.064944215 0.0640022 0.06307384 0.062158942 0.061257306 0.060368747 0.059493065 0.058630083 0.057779614 0.056941476 0.05611549 0.05530148 0.054499272 0.053708702 0.05292959 0.05216178 0.051405102 0.0506594

</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="2.4" PeakHeight="278.814" Num="5" zHalfNm="250.555" Error="0.875">
-65.85 1.93 -1.176 0.462 -0.053
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="9" 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="6514.709" A="-1.26157251E11" B="3.8937424E7" C="-3004.3054" Error="0.00169"/>
<QuasiParabolic ID="2" StartDistance="6514.709" EndDistance="6549.418" A="0.0" B="-1480.4828" C="0.26728654" Error="0.031"/>
<QuasiParabolic ID="3" StartDistance="6549.418" EndDistance="6580.0" A="5.6570692E10" B="-1.7335528E7" C="1328.1003" Error="0.031"/>
<QuasiParabolic ID="4" StartDistance="6580.0" EndDistance="6583.0" A="-2.54843585E11" B="7.7319264E7" C="-5864.513" Error="8.89E-4"/>
<QuasiParabolic ID="5" StartDistance="6583.0" EndDistance="6586.0" A="5.6277378E12" B="-1.70988467E9" C="129879.37" Error="0.0136"/>
<QuasiParabolic ID="6" StartDistance="6586.0" EndDistance="6592.0" A="1.2518823E12" B="-3.81048992E8" C="28996.004" Error="0.0121"/>
<QuasiParabolic ID="7" StartDistance="6592.0" EndDistance="6628.0" A="3.88942555E12" B="-1.1812745E9" C="89692.72" Error="0.0377"/>
<QuasiParabolic ID="8" StartDistance="6628.0" EndDistance="6648.814" A="-8.0876122E12" B="2.43279846E9" C="-182944.05" Error="0.0128"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="104.127" Depth="0.154"/>
<TopsideChapman PeakHeight="278.814" PeakDensity="71464.02" PeakScaleHeight="21.382" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
