<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-11 -131 00:00:00.000"
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 22 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 70% PACIFIC flags: Multiple candidates for F2x cusp, Multiple candidates for F2o cusp, Unidentified traces above foF2</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.11 (131) 00:00:00</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">
FF202613105110000001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.550" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.293" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.689" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.150" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.150" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.850" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="297.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="297.500" 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="3.325" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="320.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.150" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.150" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="294.455" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="262.620" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.924" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="45.593" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.614" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="24.410" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="43.330" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.600" 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" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
297.500 301.250 305.000 307.500 310.000 317.500 320.000 320.000 325.000 329.647 335.408 342.735 352.369 365.602 384.918 415.756 472.814
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
96 0 99 105 99 102 111 114 108 114 108 105 105 75 78 78 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 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="578">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 145.67033 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 181.34067 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 217.011 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 294.455 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0 600.0 601.0 602.0 603.0 604.0 605.0 606.0 607.0 608.0 609.0 610.0 611.0 612.0 613.0 614.0 615.0 616.0 617.0 618.0 619.0 620.0 621.0 622.0 623.0 624.0 625.0 626.0 627.0 628.0 629.0 630.0 631.0 632.0 633.0 634.0 635.0 636.0 637.0 638.0 639.0 640.0 641.0 642.0 643.0 644.0 645.0 646.0 647.0 648.0 649.0 650.0 651.0 652.0 653.0 654.0 655.0 656.0 657.0 658.0 659.0 660.0 661.0 662.0 663.0 664.0 665.0 666.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
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0.319414 0.3237313 0.32804862 0.33236593 0.33668324 0.34100056 0.34531787 0.34963518 0.3539525 0.354 0.3721749 0.39241937 0.4146006 0.4387132 0.4646936 0.49241078 0.52171606 0.5524328 0.58440447 0.6175059 0.6516194 0.68667936 0.72264236 0.75948024 0.79719543 0.8357923 0.87530273 0.91575825 0.95720464 0.9996804 1.0432456 1.0879407 1.1338395 1.180984 1.2294408 1.2792611 1.330498 1.3831949 1.4373848 1.4931208 1.5503993 1.6092255 1.6695933 1.7314548 1.794736 1.8593504 1.9251593 1.9920139 2.0596955 2.127996 2.1966486 2.2653837 2.3339014 2.4019005 2.469102 2.5352068 2.5999784 2.6631527 2.724562 2.7840114 2.8413763 2.8965428 2.9494288 2.9999774 3.0481682 3.0939744 3.1374018 3.1784627 3.2171776 3.25357 3.2876792 3.3195367 3.349178 3.3766434 3.4019685 3.4251888 3.4463398 3.4654534 3.4825573 3.497685 3.510853 3.5220902 3.53141 3.5388317 3.5443661 3.548022 3.5498066 3.55 3.549828 3.5486295 3.546314 3.5429115 3.538453 3.532969 3.5264902 3.5190477 3.5106723 3.5013943 3.4912443 3.4802527 3.4684498 3.4558651 3.4425282 3.4284682 3.4137142 3.398294 3.382236 3.3655674 3.3483157 3.3305073 3.312168 3.2933233 3.2739987 3.2542183 3.2340064 3.2133858 3.19238 3.1710107 3.1493 3.1272693 3.1049385 3.082328 3.0594573 3.0363452 3.0130103 2.9894702 2.9657423 2.941843 2.917789 2.893596 2.8692784 2.8448517 2.8203297 2.795726 2.7710543 2.7463264 2.7215555 2.6967528 2.6719296 2.647097 2.6222658 2.5974457 2.5726464 2.547877 2.5231469 2.498464 2.473837 2.449273 2.4247804 2.4003654 2.3760352 2.3517962 2.3276544 2.3036158 2.279686 2.2558703 2.2321734 2.2086005 2.1851556 2.1618433 2.1386673 2.1156316 2.0927396 2.0699947 2.0474 2.0249586 2.002673 1.9805455 1.9585788 1.9367751 1.9151363 1.8936642 1.8723607 1.851227 1.8302649 1.8094754 1.7888597 1.7684188 1.7481537 1.7280649 1.7081534 1.6884195 1.6688637 1.6494863 1.6302876 1.6112678 1.592427 1.5737652 1.555282 1.5369776 1.5188518 1.500904 1.4831339 1.4655412 1.4481254 1.4308859 1.413822 1.3969333 1.380219 1.3636782 1.3473103 1.3311144 1.3150896 1.299235 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</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="3.55" PeakHeight="294.455" Num="5" zHalfNm="262.62" Error="2.29">
-80.605 5.841 -4.062 2.241 -0.859
</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="6515.67" A="-1.19481238E11" B="3.6876924E7" C="-2845.3164" Error="0.00171"/>
<QuasiParabolic ID="2" StartDistance="6515.67" EndDistance="6551.341" A="0.0" B="-1726.5756" C="0.30502605" Error="0.037"/>
<QuasiParabolic ID="3" StartDistance="6551.341" EndDistance="6584.0" A="5.5471104E10" B="-1.699104E7" C="1301.1344" Error="0.037"/>
<QuasiParabolic ID="4" StartDistance="6584.0" EndDistance="6586.0" A="-3.41277639E11" B="1.03528024E8" C="-7851.285" Error="6.92E-4"/>
<QuasiParabolic ID="5" StartDistance="6586.0" EndDistance="6590.0" A="4.28688068E12" B="-1.3019255E9" C="98848.8" Error="0.0255"/>
<QuasiParabolic ID="6" StartDistance="6590.0" EndDistance="6605.0" A="2.96171261E12" B="-8.9975008E8" C="68334.73" Error="0.0231"/>
<QuasiParabolic ID="7" StartDistance="6605.0" EndDistance="6637.0" A="8.8370871E12" B="-2.67881882E9" C="203010.64" Error="0.0344"/>
<QuasiParabolic ID="8" StartDistance="6637.0" EndDistance="6664.455" A="-1.27616124E13" B="3.82975437E9" C="-287314.28" Error="0.00838"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="107.011" Depth="0.154"/>
<TopsideChapman PeakHeight="294.455" PeakDensity="156358.56" PeakScaleHeight="24.41" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
