<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-03-23 -082 06:45:00.000"
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 44 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 50% PACIFIC flags: Multiple candidates for F2o cusp, Unidentified traces above foF2</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.03.23 (082) 06:45:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.18" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.97" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="82.25368" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202608203230645001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="27" >
<URSI ID="00" Val="3.525" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.342" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.780" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.075" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="30" Val="2.675" Name="foEs" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.100" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.025" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="285.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="285.000" Name="h`F2" Units="km" QL="/" DL="/" />
<URSI ID="34" Val="100.000" Name="h`Es" 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="3.275" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="308.724" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.100" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.100" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="284.475" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="257.226" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.263" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<Custom Name="fminEs" Val="2.075" Description="Minimum frequency of Es-layer" Units="MHz" />
<URSI ID="94" Val="39.071" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.360" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="20.670" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="38.420" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.230" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="2">
<Trace Type="standard" Layer="F2" Polarization="O" Num="18">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
285.000 288.333 291.667 295.000 298.750 302.500 305.418 308.724 312.500 316.854 321.930 327.924 335.109 343.880 354.826 368.873 387.553 413.615
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
87 0 0 90 0 84 90 87 84 93 81 84 93 81 90 75 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 -1.5625
</TraceValueList>
</Trace>
<Trace Type="standard" Layer="Es" Polarization="O" Num="25">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 2.425 2.45 2.475 2.5 2.525 2.55 2.575 2.6 2.625 2.65 2.675
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 102.500 102.500 102.500 102.500 102.500 105.000
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
63 69 0 81 0 81 72 0 0 54 54 0 66 69 72 72 72 72 72 66 63 69 0 69 60
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="511">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 145.08934 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 180.17867 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 215.268 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 284.475 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0 498.0 499.0 500.0 501.0 502.0 503.0 504.0 505.0 506.0 507.0 508.0 509.0 510.0 511.0 512.0 513.0 514.0 515.0 516.0 517.0 518.0 519.0 520.0 521.0 522.0 523.0 524.0 525.0 526.0 527.0 528.0 529.0 530.0 531.0 532.0 533.0 534.0 535.0 536.0 537.0 538.0 539.0 540.0 541.0 542.0 543.0 544.0 545.0 546.0 547.0 548.0 549.0 550.0 551.0 552.0 553.0 554.0 555.0 556.0 557.0 558.0 559.0 560.0 561.0 562.0 563.0 564.0 565.0 566.0 567.0 568.0 569.0 570.0 571.0 572.0 573.0 574.0 575.0 576.0 577.0 578.0 579.0 580.0 581.0 582.0 583.0 584.0 585.0 586.0 587.0 588.0 589.0 590.0 591.0 592.0 593.0 594.0 595.0 596.0 597.0 598.0 599.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
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0.32210222 0.32649103 0.3308798 0.33526862 0.3396574 0.3440462 0.348435 0.3528238 0.354 0.37168494 0.3969337 0.4234062 0.45108044 0.47994417 0.50998306 0.5412093 0.573626 0.60724413 0.6420933 0.6781923 0.7155768 0.7542763 0.7943293 0.83576685 0.8786376 0.9229751 0.9688032 1.0161741 1.0651172 1.1156578 1.1678163 1.2216061 1.2770417 1.3341101 1.3928138 1.4531085 1.5149546 1.5782975 1.6430529 1.709129 1.7764179 1.8447618 1.9140111 1.9840077 2.0545487 2.125417 2.1964147 2.267308 2.3378727 2.4078658 2.477056 2.545239 2.6121998 2.6777182 2.741598 2.8036857 2.8638136 2.921835 2.9776084 3.0310397 3.082014 3.1304522 3.1762726 3.2194166 3.259834 3.2974792 3.3323107 3.364306 3.3934357 3.4196818 3.4430351 3.4634764 3.4809978 3.4955971 3.5072675 3.5160038 3.5218043 3.5246687 3.525 3.524779 3.5231552 3.519995 3.5153482 3.5092652 3.5017962 3.4929917 3.4829018 3.4715767 3.4590662 3.4454195 3.4306855 3.4149127 3.3981483 3.3804395 3.361832 3.3423712 3.3221016 3.3010664 3.279308 3.256868 3.2337863 3.2101028 3.1858556 3.1610818 3.1358178 3.1100984 3.0839577 3.0574284 3.0305426 3.003331 2.9758227 2.9480472 2.9200313 2.891802 2.8633847 2.8348038 2.8060832 2.777245 2.7483115 2.719303 2.6902394 2.66114 2.6320226 2.6029046 2.5738025 2.544732 2.5157084 2.4867456 2.4578571 2.4290557 2.4003537 2.3717625 2.343293 2.3149555 2.2867594 2.2587142 2.2308285 2.20311 2.1755664 2.1482048 2.1210318 2.0940535 2.0672758 2.0407038 2.0143423 1.988196 1.9622692 1.9365655 1.9110885 1.8858413 1.8608267 1.8360475 1.8115058 1.7872037 1.7631428 1.7393249 1.7157513 1.6924229 1.6693406 1.6465051 1.623917 1.6015766 1.5794839 1.557639 1.5360417 1.5146917 1.4935886 1.4727317 1.4521204 1.4317539 1.4116312 1.3917514 1.3721133 1.3527158 1.3335575 1.3146371 1.295953 1.2775041 1.2592884 1.2413044 1.2235506 1.206025 1.1887261 1.1716517 1.1548003 1.1381699 1.1217585 1.1055641 1.0895848 1.0738186 1.0582633 1.0429171 1.0277778 1.0128433 0.9981114 0.98358023 0.9692475 0.95511115 0.941169 0.92741895 0.9138589 0.9004866 0.8873 0.874297 0.86147547 0.8488332 0.83636814 0.82407814 0.8119611 0.800015 0.78823763 0.776627 0.76518106 0.7538977 0.74277496 0.7318107 0.721003 0.71034986 0.69984925 0.68949926 0.67929786 0.66924316 0.6593332 0.6495662 0.6399401 0.63045317 0.62110347 0.6118892 0.60280854 0.5938597 0.58504087 0.5763503 0.5677862 0.559347 0.5510308 0.542836 0.53476095 0.526804 0.5189634 0.5112376 0.5036251 0.49612418 0.48873335 0.48145106 0.47427577 0.467206 0.46024024 0.45337704 0.44661492 0.43995246 0.43338823 0.4269209 0.420549 0.4142712 0.40808618 0.4019926 0.3959891 0.39007446 0.38424736 0.37850654 0.37285078 0.3672788 0.36178946 0.35638154 0.35105383 0.34580517 0.34063447 0.33554053 0.33052227 0.32557857 0.32070836 0.31591055 0.3111841 0.30652797 0.30194113 0.29742253 0.29297122 0.2885862 0.28426647 0.28001112 0.27581915 0.27168965 0.26762173 0.26361448 0.25966695 0.2557783 0.2519477 0.24817422 0.24445707 0.24079539 0.23718837 0.2336352 0.2301351 0.22668727 0.22329092 0.21994533 0.21664971 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0.054770246 0.0539485 0.05313908 0.0523418 0.051556487 0.05078295 0.050021015

</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="3.525" PeakHeight="284.475" Num="5" zHalfNm="257.226" Error="1.825">
-69.929 1.63 -1.611 0.9 -0.197
</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="6515.089" A="-1.2345602E11" B="3.8103712E7" C="-2939.9758" Error="0.00171"/>
<QuasiParabolic ID="2" StartDistance="6515.089" EndDistance="6550.179" A="0.0" B="39.882507" C="0.033911236" Error="8.2E-4"/>
<QuasiParabolic ID="3" StartDistance="6550.179" EndDistance="6551.0" A="1.23139575E13" B="-3.75957939E9" C="286959.72" Error="0.0844"/>
<QuasiParabolic ID="4" StartDistance="6551.0" EndDistance="6561.0" A="-2.47900094E11" B="7.5516696E7" C="-5751.0117" Error="0.0798"/>
<QuasiParabolic ID="5" StartDistance="6561.0" EndDistance="6584.0" A="1.15170353E11" B="-3.5158644E7" C="2683.3232" Error="0.0445"/>
<QuasiParabolic ID="6" StartDistance="6584.0" EndDistance="6601.0" A="3.76446806E12" B="-1.14369382E9" C="86867.336" Error="0.0473"/>
<QuasiParabolic ID="7" StartDistance="6601.0" EndDistance="6634.0" A="9.3574178E12" B="-2.83827046E9" C="215224.9" Error="0.0343"/>
<QuasiParabolic ID="8" StartDistance="6634.0" EndDistance="6654.475" A="-1.85658266E13" B="5.5799521E9" C="-419250.72" Error="0.0123"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="105.268" Depth="0.154"/>
<TopsideChapman PeakHeight="284.475" PeakDensity="154164.08" PeakScaleHeight="20.67" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
