<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-11 -131 00:15:00.000"
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 F2o cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.11 (131) 00:15:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.21" 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">
FF202613105110015001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.675" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.408" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.526" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.925" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.925" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.150" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="265.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="265.000" 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="3.450" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="303.741" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.925" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.925" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="278.143" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="253.932" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.841" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="34.666" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.315" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="18.461" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="33.150" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.470" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="31">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
265.000 265.000 267.500 267.500 270.000 270.000 272.500 275.000 275.000 277.500 280.000 280.000 282.500 285.000 287.500 287.500 290.000 292.144 294.538 297.227 300.270 303.741 307.739 312.392 317.876 324.435 332.421 342.355 355.050 371.840 395.091
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
54 66 72 75 87 90 105 102 108 105 105 105 117 114 111 111 111 105 66 66 102 96 75 72 69 66 63 0 0 0 75
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="473">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 145.971 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 181.942 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 217.913 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 278.143 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0
</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 0.35321164 0.35250095 0.35171908 0.35071898 0.3495047 0.3480812 0.34652662 0.3447022 0.34275916 0.34056342 0.33819553 0.3355976 0.3327837 0.32976884 0.3265056 0.32301557 0.31926143 0.3153307 0.31107903 0.30655015 0.30173773 0.2967204 0.2912893 0.28553915 0.27939937 0.27300245 0.26612282 0.25879377 0.25098523 0.24267025 0.23379451 0.22432281 0.21410912 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 0.2 0.20024832 0.20452954 0.20881076 0.21309198 0.21737322 0.22165444 0.22593567 0.23021689 0.23449813 0.23877935 0.24306057 0.2473418 0.25162303 0.25590426 0.26018548 0.2644667 0.26874793 0.27302915 0.2773104 0.28159162 0.28587285 0.29015407 0.2944353 0.29871652 0.30299774 0.30727896 0.3115602 0.31584144 0.32012266 0.32440388 0.3286851 0.33296633 0.33724755 0.34152877 0.34581003 0.35009125 0.354 0.35654005 0.3865164 0.41789034 0.45059264 0.48460868 0.5199393 0.5566238 0.5947078 0.6342595 0.675345 0.7180666 0.76250905 0.8087833 0.8570011 0.9072673 0.95970917 1.0144513 1.0716115 1.1313175 1.1936713 1.2587942 1.3267425 1.3975995 1.4713919 1.5480891 1.6276342 1.7099055 1.794688 1.881723 1.9706535 2.0610383 2.1524048 2.2441983 2.335883 2.426852 2.5165741 2.6045132 2.690203 2.7732413 2.853268 2.9300168 3.0032692 3.0728655 3.1386871 3.2006526 3.2587154 3.3128853 3.3631392 3.409507 3.4520195 3.490698 3.5255978 3.556743 3.584178 3.6079423 3.628067 3.644581 3.6575108 3.6668744 3.67269 3.674964 3.675 3.6742342 3.6714454 3.6666846 3.6600251 3.6515408 3.6413052 3.6293917 3.6158738 3.6008244 3.5843148 3.5664167 3.5472002 3.5267336 3.5050852 3.4823208 3.4585056 3.4337022 3.407973 3.3813775 3.3539743 3.3258197 3.2969687 3.2674744 3.237388 3.2067587 3.1756349 3.1440623 3.1120846 3.079745 3.0470839 3.0141404 2.9809518 2.9475543 2.9139817 2.8802667 2.8464406 2.812533 2.7785716 2.744584 2.7105951 2.676629 2.642709 2.6088562 2.5750911 2.541433 2.5079 2.4745092 2.4412766 2.4082172 2.375345 2.3426733 2.3102143 2.2779794 2.2459793 2.2142236 2.1827219 2.1514819 2.120512 2.0898187 2.059409 2.0292883 1.9994622 1.9699355 1.9407123 1.9117966 1.8831915 1.8549 1.8269247 1.7992676 1.7719306 1.7449149 1.7182217 1.6918516 1.6658052 1.6400827 1.6146841 1.5896088 1.5648565 1.5404264 1.5163174 1.4925284 1.4690583 1.4459053 1.4230678 1.4005442 1.3783324 1.3564303 1.3348358 1.3135467 1.2925605 1.2718748 1.251487 1.2313946 1.2115948 1.1920849 1.1728622 1.1539235 1.1352662 1.1168872 1.0987837 1.0809524 1.0633905 1.0460949 1.0290624 1.01229 0.9957746 0.9795131 0.9635023 0.94773906 0.93222034 0.916943 0.90190387 0.8870999 0.87252796 0.858185 0.8440679 0.83017355 0.81649905 0.8030412 0.7897971 0.77676374 0.7639382 0.7513174 0.73889846 0.72667855 0.7146548 0.70282423 0.69118416 0.6797317 0.6684642 0.65737873 0.64647275 0.63574344 0.62518823 0.6148045 0.60458964 0.5945411 0.58465624 0.57493263 0.5653678 0.55595934 0.54670477 0.5376017 0.5286478 0.5198408 0.51117826 0.50265807 0.4942779 0.4860356 0.47792894 0.4699558 0.4621141 0.45440173 0.4468166 0.4393567 0.43202007 0.4248047 0.41770864 0.41073 0.4038669 0.39711744 0.3904798 0.38395223 0.37753287 0.37122002 0.36501193 0.35890692 0.35290334 0.34699947 0.34119374 0.3354845 0.32987025 0.3243494 0.3189204 0.3135818 0.30833206 0.3031698 0.2980935 0.2931018 0.28819332 0.28336665 0.27862045 0.27395344 0.2693643 0.26485172 0.26041445 0.25605124 0.2517609 0.24754219 0.24339394 0.23931499 0.23530418 0.23136039 0.2274825 0.22366944 0.21992011 0.21623348 0.21260849 0.20904413 0.20553938 0.20209324 0.19870478 0.195373 0.19209696 0.18887575 0.18570846 0.18259418 0.17953204 0.17652115 0.17356068 0.17064978 0.16778761 0.1649734 0.16220629 0.15948555 0.15681037 0.15418002 0.15159373 0.14905076 0.1465504 0.14409195 0.14167468 0.13929792 0.136961 0.13466324 0.13240398 0.13018261 0.12799846 0.12585093 0.1237394 0.121663265 0.11962193 0.11761483 0.11564138 0.113701016 0.11179318 0.10991735 0.10807297 0.10625951 0.10447647 0.10272333 0.10099959 0.09930476 0.09763835 0.0959999 0.094388925 0.09280497 0.09124758 0.08971632 0.08821075 0.08673043 0.085274935 0.083843865 0.0824368 0.08105334 0.07969309 0.078355655 0.07704066 0.07574773 0.07447649 0.07322658 0.071997635 0.070789315 0.06960127 0.06843315 0.067284636 0.06615539 0.065045096 0.06395343 0.06288008 0.06182474 0.06078711 0.059766892 0.058763795 0.057777528 0.056807812 0.05585437 0.054916922 0.05399521 0.053088967 0.052197926 0.05132184 0.05046046

</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="3.675" PeakHeight="278.143" Num="5" zHalfNm="253.932" Error="2.006">
-61.916 3.307 -2.8 1.448 -0.269
</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="6515.971" A="-1.17495996E11" B="3.6264196E7" C="-2798.038" Error="0.00183"/>
<QuasiParabolic ID="2" StartDistance="6515.971" EndDistance="6551.942" A="0.0" B="-3108.7034" C="0.5171312" Error="0.0665"/>
<QuasiParabolic ID="3" StartDistance="6551.942" EndDistance="6582.0" A="8.1025098E10" B="-2.477018E7" C="1893.1611" Error="0.0665"/>
<QuasiParabolic ID="4" StartDistance="6582.0" EndDistance="6586.0" A="-3.27659487E11" B="9.9412312E7" C="-7540.331" Error="0.00279"/>
<QuasiParabolic ID="5" StartDistance="6586.0" EndDistance="6598.0" A="4.8809955E12" B="-1.4823232E9" C="112542.836" Error="0.0492"/>
<QuasiParabolic ID="6" StartDistance="6598.0" EndDistance="6601.0" A="3.2780174E12" B="-9.9642502E8" C="75721.21" Error="0.00532"/>
<QuasiParabolic ID="7" StartDistance="6601.0" EndDistance="6628.0" A="1.51520616E13" B="-4.5940751E9" C="348229.2" Error="0.0442"/>
<QuasiParabolic ID="8" StartDistance="6628.0" EndDistance="6648.143" A="-2.39955377E13" B="7.2187192E9" C="-542898.94" Error="0.0109"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="107.913" Depth="0.154"/>
<TopsideChapman PeakHeight="278.143" PeakDensity="167563.58" PeakScaleHeight="18.461" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
