<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-27 -147 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 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" >
2026.05.27 (147) 22:55:00</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">
FF202614705272255001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.475" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.328" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.565" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.050" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.050" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.825" 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="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.125" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="292.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.050" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.050" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="289.804" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="257.343" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="4.484" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="46.437" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.576" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="24.939" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="43.520" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.730" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="18">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
282.500 285.000 290.000 292.500 297.500 302.500 307.500 312.500 315.000 322.500 329.814 338.413 348.666 361.103 376.505 396.076 421.771 457.000
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
78 93 90 93 93 90 90 93 93 90 93 90 90 93 90 84 0 72
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="580">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 144.04834 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 178.09666 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 212.145 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 289.804 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0 600.0 601.0 602.0 603.0 604.0 605.0 606.0 607.0 608.0 609.0 610.0 611.0 612.0 613.0 614.0 615.0 616.0 617.0 618.0 619.0 620.0 621.0 622.0 623.0 624.0 625.0 626.0 627.0 628.0 629.0 630.0 631.0 632.0 633.0 634.0 635.0 636.0 637.0 638.0 639.0 640.0 641.0 642.0 643.0 644.0 645.0 646.0 647.0 648.0 649.0 650.0 651.0 652.0 653.0 654.0 655.0 656.0 657.0 658.0 659.0 660.0 661.0 662.0 663.0 664.0 665.0 666.0 667.0 668.0
</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 0.35306162 0.35235164 0.35142174 0.35027573 0.34899163 0.34742752 0.34566385 0.34363678 0.34142753 0.33897603 0.33629557 0.33340064 0.3302415 0.32683918 0.32315415 0.3192154 0.3149951 0.31047505 0.3057011 0.30056572 0.29511514 0.28930977 0.28307378 0.27646196 0.26940566 0.26191607 0.25384402 0.24529943 0.23605375 0.2261601 0.2155581 0.20410223 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 0.20408577 0.20860875 0.21313173 0.2176547 0.22217768 0.22670066 0.23122366 0.23574664 0.24026962 0.2447926 0.24931557 0.25383857 0.25836155 0.26288453 0.2674075 0.2719305 0.27645347 0.28097644 0.28549942 0.29002243 0.2945454 0.2990684 0.30359137 0.30811435 0.31263733 0.3171603 0.3216833 0.32620627 0.33072925 0.33525223 0.33977523 0.3442982 0.3488212 0.35334417 0.354 0.37054887 0.3915516 0.41430897 0.43873727 0.46471664 0.49209863 0.52073354 0.550491 0.58125955 0.6129518 0.6455088 0.6789098 0.71313775 0.7481952 0.78410786 0.8208974 0.8586166 0.8973018 0.9369982 0.97777754 1.0196927 1.0628148 1.1071949 1.1529082 1.2000154 1.248597 1.2986975 1.3503937 1.4037228 1.4587237 1.5154253 1.5738438 1.6339512 1.6957119 1.7590388 1.8238167 1.8899033 1.9570938 2.0251536 2.093801 2.1627283 2.2316096 2.3001008 2.367867 2.4345963 2.4999866 2.563774 2.6257312 2.6856852 2.7434783 2.7990098 2.8521929 2.9029975 2.9513946 2.9973905 3.0409858 3.082231 3.1211388 3.157758 3.192137 3.2243226 3.2543643 3.2823074 3.3081934 3.3320782 3.3539953 3.3739843 3.3920863 3.4083335 3.422756 3.435377 3.446226 3.4553196 3.462677 3.468312 3.4722335 3.4744508 3.475 3.4749792 3.4742274 3.4724174 3.4695768 3.4657338 3.4609168 3.4551535 3.4484723 3.4409018 3.43247 3.4232051 3.4131348 3.402287 3.3906891 3.3783684 3.3653522 3.3516665 3.3373382 3.3223927 3.3068562 3.2907534 3.274109 3.2569473 3.2392924 3.2211676 3.2025955 3.183599 3.1641994 3.1444187 3.1242776 3.1037965 3.0829952 3.0618935 3.04051 3.0188632 2.996971 2.9748507 2.9525194 2.9299936 2.907289 2.884421 2.861405 2.838255 2.8149853 2.7916093 2.76814 2.7445908 2.720973 2.697299 2.6735802 2.6498272 2.626051 2.6022615 2.5784686 2.5546818 2.53091 2.5071619 2.483446 2.4597702 2.436142 2.412569 2.389058 2.365616 2.3422492 2.3189638 2.2957656 2.27266 2.2496526 2.2267485 2.2039518 2.181268 2.1587007 2.1362543 2.1139326 2.0917392 2.0696774 2.0477507 2.025962 2.0043144 1.9828101 1.961452 1.9402423 1.9191833 1.8982767 1.8775245 1.8569286 1.8364904 1.8162113 1.7960929 1.776136 1.7563419 1.7367115 1.7172457 1.6979451 1.6788105 1.6598423 1.641041 1.622407 1.6039404 1.5856415 1.5675104 1.5495471 1.5317516 1.5141237 1.4966633 1.4793701 1.4622439 1.4452842 1.4284906 1.4118629 1.3954002 1.379102 1.3629678 1.3469971 1.3311889 1.3155427 1.3000575 1.2847328 1.2695675 1.2545608 1.239712 1.2250199 1.2104838 1.1961025 1.1818752 1.1678008 1.1538782 1.1401066 1.1264846 1.1130114 1.0996857 1.0865066 1.0734727 1.0605831 1.0478367 1.0352321 1.0227683 1.0104442 0.9982584 0.9862099 0.97429746 0.96251994 0.9508761 0.9393648 0.9279847 0.9167348 0.9056138 0.8946205 0.88375366 0.8730122 0.8623948 0.85190034 0.8415276 0.8312754 0.8211426 0.81112796 0.80123025 0.7914484 0.7817812 0.77222747 0.7627861 0.7534558 0.7442356 0.73512423 0.7261206 0.7172235 0.70843196 0.69974476 0.69116074 0.68267894 0.6742981 0.66601723 0.65783525 0.64975107 0.64176357 0.63387173 0.62607455 0.6183709 0.6107598 0.6032402 0.595811 0.58847135 0.5812202 0.57405645 0.5669792 0.55998755 0.5530804 0.5462568 0.5395158 0.5328565 0.526278 0.5197793 0.51335955 0.5070178 0.5007531 0.49456465 0.48845154 0.48241284 0.47644776 0.4705554 0.4647349 0.45898545 0.45330623 0.44769636 0.4421551 0.43668157 0.43127504 0.42593467 0.4206597 0.41544932 0.41030285 0.40521944 0.40019837 0.39523894 0.39034036 0.38550192 0.38072294 0.37600267 0.3713404 0.3667355 0.36218718 0.35769483 0.3532578 0.34887537 0.34454688 0.34027174 0.33604926 0.33187884 0.3277598 0.32369155 0.31967348 0.315705 0.31178546 0.3079143 0.30409092 0.30031478 0.29658523 0.29290178 0.28926384 0.28567085 0.28212225 0.27861753 0.27515617 0.27173758 0.26836127 0.26502675 0.26173347 0.25848097 0.2552687 0.2520962 0.24896297 0.24586855 0.24281244 0.23979418 0.2368133 0.23386937 0.2309619 0.22809048 0.22525463 0.22245394 0.21968795 0.21695626 0.21425845 0.21159407 0.20896275 0.20636408 0.20379762 0.20126301 0.19875984 0.19628774 0.1938463 0.19143517 0.18905395 0.1867023 0.18437983 0.1820862 0.17982104 0.177584 0.17537475 0.17319292 0.1710382 0.16891022 0.16680868 0.16473325 0.16268359 0.16065939 0.15866034 0.15668613 0.15473644 0.15281099 0.15090945 0.14903155 0.14717698 0.14534546 0.1435367 0.14175044 0.13998637 0.13824423 0.13652374 0.13482463 0.13314666 0.13148955 0.12985303 0.12823686 0.1266408 0.12506457 0.12350795 0.121970676 0.12045252 0.11895325 0.117472626 0.11601041 0.11456639 0.11314032 0.111732 0.110341184 0.10896767 0.10761125 0.10627169 0.104948804 0.10364237 0.10235219 0.101078056 0.09981978 0.09857716 0.09734999 0.09613809 0.09494127 0.09375934 0.09259213 0.091439426 0.090301074 0.08917688 0.08806668 0.08697029 0.08588755 0.08481828 0.08376232 0.0827195 0.08168965 0.08067262 0.079668246 0.07867638 0.07769685 0.07672951 0.075774215 0.07483081 0.07389914 0.07297907 0.07207045 0.07117314 0.070287 0.06941188 0.068547666 0.0676942 0.06685136 0.06601901 0.06519703 0.06438527 0.06358362 0.06279195 0.062010128 0.061238043 0.06047557 0.059722587 0.058978975 0.058244623 0.057519414 0.056803226 0.05609596 0.055397496 0.05470773 0.054026548 0.053353846 0.05268952 0.052033465 0.051385574 0.05074575 0.050113894

</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="3.475" PeakHeight="289.804" Num="5" zHalfNm="257.343" Error="3.293">
-81.463 6.872 -4.856 2.625 -0.837
</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="6514.048" A="-1.31082134E11" B="4.0457448E7" C="-3121.5916" Error="0.00168"/>
<QuasiParabolic ID="2" StartDistance="6514.048" EndDistance="6548.097" A="0.0" B="-85.65787" C="0.0531803" Error="0.00247"/>
<QuasiParabolic ID="3" StartDistance="6548.097" EndDistance="6579.0" A="4.0026857E10" B="-1.2301819E7" C="945.2112" Error="0.00247"/>
<QuasiParabolic ID="4" StartDistance="6579.0" EndDistance="6580.0" A="-1.16675563E12" B="3.5455712E8" C="-26935.844" Error="3.15E-11"/>
<QuasiParabolic ID="5" StartDistance="6580.0" EndDistance="6590.0" A="3.06289364E12" B="-9.3105056E8" C="70754.71" Error="0.0263"/>
<QuasiParabolic ID="6" StartDistance="6590.0" EndDistance="6604.0" A="3.4114327E12" B="-1.03682874E9" C="78780.37" Error="0.0231"/>
<QuasiParabolic ID="7" StartDistance="6604.0" EndDistance="6630.0" A="9.9664339E12" B="-3.02198963E9" C="229080.25" Error="0.0181"/>
<QuasiParabolic ID="8" StartDistance="6630.0" EndDistance="6659.804" A="-1.14992706E13" B="3.45333606E9" C="-259255.02" Error="0.00843"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="102.145" Depth="0.154"/>
<TopsideChapman PeakHeight="289.804" PeakDensity="149821.66" PeakScaleHeight="24.939" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
