<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-13 -103 03:50:00.000"
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" >
2026.04.13 (103) 03:50:00</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">
FF202610304130350001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.425" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.304" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.315" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.475" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.475" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.775" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="267.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="267.500" 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="0.125" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.175" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="312.638" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.475" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.475" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="289.431" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="258.089" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.472" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="44.605" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.474" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="24.229" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="37.830" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.730" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="39">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 3.35 3.375 3.4 3.425
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
267.500 268.500 269.500 270.500 271.500 272.500 275.000 275.000 277.500 277.500 280.000 280.000 280.000 285.000 285.000 285.000 287.500 287.500 290.000 292.500 295.000 295.000 297.500 299.332 301.376 303.671 306.268 309.229 312.638 316.602 321.273 326.854 333.643 342.078 352.841 367.050 386.675 415.541 462.189
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 0 0 0 0 66 69 75 72 72 63 66 66 66 51 54 63 54 0 0 66 69 84 87 96 99 90 90 93 90 102 102 93 93 87 0 0 0 87
</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 1.5625 1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="567">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 146.75 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 183.5 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 220.25 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 289.431 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0 600.0 601.0 602.0 603.0 604.0 605.0 606.0 607.0 608.0 609.0 610.0 611.0 612.0 613.0 614.0 615.0 616.0 617.0 618.0 619.0 620.0 621.0 622.0 623.0 624.0 625.0 626.0 627.0 628.0 629.0 630.0 631.0 632.0 633.0 634.0 635.0 636.0 637.0 638.0 639.0 640.0 641.0 642.0 643.0 644.0 645.0 646.0 647.0 648.0 649.0 650.0 651.0 652.0 653.0 654.0 655.0
</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 0.35257575 0.35179353 0.3507929 0.34965166 0.3483729 0.3468153 0.34513062 0.34325272 0.34111932 0.33887988 0.3364047 0.33370727 0.330802 0.3277044 0.32436836 0.32081586 0.31701088 0.31298292 0.30870742 0.304116 0.29931185 0.29412317 0.28874603 0.28298274 0.27686438 0.27037144 0.26346487 0.25618252 0.24836415 0.2400988 0.23120971 0.22173098 0.21158703 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 0.2 0.20209524 0.20628572 0.21047619 0.21466666 0.21885714 0.22304761 0.22723809 0.23142858 0.23561905 0.23980953 0.244 0.24819048 0.25238097 0.25657144 0.26076192 0.2649524 0.26914287 0.27333334 0.27752382 0.2817143 0.28590477 0.29009524 0.2942857 0.2984762 0.30266666 0.30685714 0.3110476 0.3152381 0.31942856 0.32361904 0.3278095 0.332 0.33619046 0.34038097 0.34457144 0.34876192 0.3529524 0.354 0.37358737 0.40044716 0.4280397 0.45630082 0.48520145 0.5147571 0.5450148 0.5760235 0.6078613 0.64060056 0.67434025 0.7091768 0.74521935 0.7825828 0.821411 0.8618339 0.9040149 0.94812715 0.9943493 1.0428892 1.0939765 1.1478451 1.2047428 1.2649279 1.3286562 1.3961501 1.467624 1.543158 1.6227263 1.7061079 1.7928445 1.88224 1.9733306 2.064968 2.1559572 2.2451673 2.3316169 2.4146016 2.4936316 2.5684412 2.638928 2.7051497 2.7671986 2.825254 2.8795125 2.9301777 2.977443 3.0215118 3.0625648 3.1007683 3.1362805 3.1692472 3.1997879 3.2280219 3.2540567 3.2779808 3.2998848 3.3198388 3.3379102 3.3541572 3.3686314 3.3813784 3.3924396 3.4018445 3.4096234 3.415798 3.4203866 3.4234028 3.4248552 3.425 3.4248164 3.4236164 3.4213235 3.4179676 3.4135787 3.4081876 3.4018245 3.3945198 3.3863037 3.3772066 3.3672585 3.3564892 3.3449285 3.3326058 3.31955 3.3057902 3.2913542 3.2762702 3.2605658 3.244268 3.2274034 3.2099981 3.1920779 3.1736674 3.1547918 3.135475 3.11574 3.0956104 3.0751083 3.0542557 3.0330737 3.011583 2.9898043 2.9677565 2.9454591 2.9229307 2.900189 2.8772514 2.8541348 2.8308558 2.80743 2.7838726 2.7601988 2.7364225 2.7125578 2.6886177 2.6646154 2.640563 2.6164725 2.5923553 2.5682225 2.5440848 2.519952 2.4958344 2.471741 2.4476807 2.4236624 2.3996942 2.3757842 2.3519394 2.3281674 2.304475 2.2808685 2.2573545 2.2339385 2.2106264 2.1874235 2.1643348 2.141365 2.1185188 2.0958006 2.0732143 2.0507636 2.0284522 2.0062833 1.9842604 1.9623864 1.9406638 1.9190954 1.8976834 1.8764303 1.8553379 1.834408 1.8136426 1.7930433 1.7726111 1.7523478 1.7322544 1.7123318 1.6925809 1.6730027 1.6535978 1.6343668 1.6153098 1.5964278 1.5777205 1.5591885 1.5408316 1.52265 1.5046436 1.4868121 1.4691554 1.4516733 1.4343654 1.4172311 1.4002702 1.3834821 1.3668661 1.3504217 1.334148 1.3180445 1.3021106 1.286345 1.2707472 1.2553161 1.240051 1.2249509 1.2100147 1.1952416 1.1806302 1.1661798 1.1518891 1.1377572 1.1237828 1.1099646 1.0963018 1.0827931 1.0694371 1.0562329 1.0431792 1.0302746 1.0175179 1.0049081 0.9924436 0.9801234 0.9679461 0.9559105 0.94401526 0.93225914 0.92064077 0.909159 0.8978124 0.88659984 0.87551993 0.86457133 0.8537529 0.84306324 0.8325011 0.82206523 0.81175435 0.80156714 0.79150236 0.78155875 0.771735 0.76203 0.7524423 0.7429708 0.73361427 0.7243714 0.71524096 0.7062218 0.6973127 0.68851244 0.6798198 0.67123365 0.66275275 0.65437603 0.6461022 0.63793015 0.6298588 0.62188697 0.6140135 0.6062373 0.5985573 0.5909723 0.5834813 0.5760832 0.56877685 0.5615613 0.55443543 0.5473982 0.5404486 0.5335856 0.52680814 0.52011526 0.513506 0.5069792 0.5005341 0.49416962 0.48788482 0.48167872 0.4755504 0.46949896 0.46352345 0.45762295 0.45179656 0.4460434 0.44036257 0.4347532 0.42921448 0.42374545 0.41834536 0.4130133 0.4077485 0.40255007 0.39741725 0.39234924 0.38734522 0.38240445 0.3775261 0.37270942 0.36795366 0.3632581 0.35862193 0.35404447 0.34952497 0.3450627 0.34065703 0.33630714 0.33201244 0.3277722 0.32358575 0.3194524 0.31537154 0.31134248 0.30736455 0.30343717 0.29955968 0.29573148 0.29195192 0.2882204 0.28453633 0.28089914 0.27730817 0.2737629 0.27026278 0.26680717 0.26339555 0.26002738 0.25670207 0.25341913 0.250178 0.24697818 0.24381912 0.2407003 0.23762125 0.23458144 0.23158039 0.22861761 0.2256926 0.2228049 0.21995404 0.21713954 0.21436095 0.21161781 0.20890969 0.20623611 0.20359667 0.20099093 0.19841844 0.1958788 0.1933716 0.19089639 0.18845281 0.18604045 0.18365888 0.18130775 0.17898665 0.17669521 0.17443305 0.1721998 0.16999508 0.16781853 0.16566981 0.16354856 0.16145442 0.15938705 0.15734611 0.15533127 0.15334219 0.15137853 0.14943999 0.14752625 0.14563698 0.14377186 0.1419306 0.14011289 0.13831845 0.13654694 0.13479811 0.13307165 0.13136727 0.12968469 0.12802365 0.12638386 0.12476505 0.12316696 0.121589325 0.12003187 0.118494354 0.11697651 0.11547809 0.11399885 0.11253855 0.11109693 0.109673776 0.10826883 0.10688187 0.10551266 0.104160994 0.10282662 0.10150933 0.10020891 0.09892513 0.09765779 0.09640668 0.095171586 0.093952306 0.09274864 0.091560386 0.090387344 0.08922933 0.08808614 0.08695759 0.085843496 0.08474366 0.08365792 0.08258608 0.08152796 0.0804834 0.07945222 0.07843424 0.077429295 0.07643723 0.07545786 0.07449105 0.073536605 0.0725944 0.07166425 0.07074603 0.06983956 0.0689447 0.06806131 0.06718923 0.066328324 0.065478444 0.06463946 0.06381121 0.06299357 0.062186413 0.06138959 0.060602978 0.059826445 0.059059855 0.058303088 0.057556015 0.05681851 0.05609046 0.05537173 0.054662213 0.053961784 0.05327033 0.052587733 0.05191388 0.051248662 0.050591964

</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="3.425" PeakHeight="289.431" Num="5" zHalfNm="258.089" Error="2.518">
-75.754 11.677 -8.11 3.662 -0.656
</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="6516.75" A="-1.12596525E11" B="3.4752012E7" C="-2681.3572" Error="0.00175"/>
<QuasiParabolic ID="2" StartDistance="6516.75" EndDistance="6553.5" A="0.0" B="-822.1246" C="0.16619548" Error="0.0187"/>
<QuasiParabolic ID="3" StartDistance="6553.5" EndDistance="6588.0" A="4.2707407E10" B="-1.3096928E7" C="1004.1142" Error="0.0187"/>
<QuasiParabolic ID="4" StartDistance="6588.0" EndDistance="6589.0" A="-1.52936068E12" B="4.64155072E8" C="-35217.2" Error="0.0"/>
<QuasiParabolic ID="5" StartDistance="6589.0" EndDistance="6592.0" A="7.3153307E12" B="-2.2205289E9" C="168507.5" Error="0.0134"/>
<QuasiParabolic ID="6" StartDistance="6592.0" EndDistance="6594.0" A="-1.45910071E11" B="4.3197048E7" C="-3195.021" Error="0.00789"/>
<QuasiParabolic ID="7" StartDistance="6594.0" EndDistance="6603.0" A="2.94705168E12" B="-8.9491693E8" C="67938.88" Error="0.00421"/>
<QuasiParabolic ID="8" StartDistance="6603.0" EndDistance="6613.0" A="7.2428935E12" B="-2.19609574E9" C="166468.25" Error="0.0162"/>
<QuasiParabolic ID="9" StartDistance="6613.0" EndDistance="6625.0" A="2.27177472E13" B="-6.8762266E9" C="520326.62" Error="0.00672"/>
<QuasiParabolic ID="10" StartDistance="6625.0" EndDistance="6659.431" A="-1.15573176E13" B="3.47096269E9" C="-260593.31" Error="0.0126"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="110.25" Depth="0.154"/>
<TopsideChapman PeakHeight="289.431" PeakDensity="145541.25" PeakScaleHeight="24.229" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
