<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-26 -146 03:40:00.000"
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: 75% PACIFIC flags: Multiple candidates for F2x cusp, Unidentified traces above foF2</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.26 (146) 03:40:00</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">
FF202614605260340001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.400" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.510" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="8.425" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.250" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.250" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="2.700" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="305.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="305.000" 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="0.025" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.375" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="316.164" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.250" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.250" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="271.522" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="251.429" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.726" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="28.433" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.473" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.855" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="29.540" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.860" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="7">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.25 2.275 2.3 2.325 2.35 2.375 2.4
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
305.000 305.000 307.500 309.577 312.332 316.164 321.853
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 54 54 54 0 0 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 -4.6875 -1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="391">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 147.61867 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 185.23734 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 222.856 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 271.522 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0
</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 0.35369936 0.35321155 0.35265046 0.35186782 0.3509409 0.34987223 0.3485916 0.34717676 0.34555984 0.34374744 0.34174705 0.33956686 0.33721575 0.33463627 0.33190805 0.32897747 0.3257971 0.32238805 0.31883237 0.31497377 0.31090367 0.30659857 0.30199215 0.29716146 0.29199025 0.2866451 0.28084904 0.2747301 0.26827148 0.26143768 0.25414795 0.24645407 0.23824295 0.2294665 0.22005679 0.21006757 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 0.2 0.20312214 0.20721585 0.21130957 0.21540327 0.21949698 0.2235907 0.22768441 0.23177813 0.23587184 0.23996554 0.24405926 0.24815297 0.25224668 0.25634038 0.26043412 0.26452783 0.26862153 0.27271524 0.27680895 0.28090268 0.2849964 0.2890901 0.2931838 0.2972775 0.30137125 0.30546495 0.30955866 0.31365237 0.31774607 0.3218398 0.32593352 0.33002722 0.33412093 0.33821464 0.34230837 0.34640208 0.3504958 0.354 0.3586166 0.38985127 0.42069626 0.4520306 0.4843848 0.5181308 0.5535508 0.5908539 0.6302192 0.6717322 0.7154294 0.7612734 0.8091392 0.8588536 0.91020083 0.9629062 1.0166963 1.0713016 1.1264782 1.1820062 1.2376965 1.2933855 1.3489391 1.4042538 1.4592406 1.5138177 1.567933 1.6215116 1.6745028 1.7268317 1.7784472 1.8292726 1.8792078 1.9281592 1.9760085 2.0226154 2.0678077 2.1113896 2.1531382 2.192795 2.230065 2.2646143 2.2960892 2.3240964 2.3482563 2.3681781 2.3835084 2.3939505 2.3992858 2.4 2.399759 2.3977282 2.3937073 2.3877878 2.3800623 2.370623 2.3595617 2.3469696 2.3329365 2.317551 2.3008993 2.2830665 2.264135 2.244185 2.223294 2.2015378 2.1789882 2.1557155 2.1317866 2.107266 2.0822148 2.0566921 2.030754 2.004454 1.9778421 1.9509668 1.9238738 1.8966057 1.8692033 1.8417048 1.8141463 1.7865614 1.7589816 1.7314368 1.7039545 1.6765604 1.6492785 1.6221311 1.5951388 1.5683205 1.5416939 1.515275 1.4890786 1.4631183 1.4374062 1.4119537 1.3867706 1.3618661 1.3372482 1.3129243 1.2889004 1.2651821 1.2417743 1.218681 1.1959056 1.1734508 1.1513189 1.1295115 1.1080298 1.0868745 1.0660458 1.0455437 1.0253674 1.0055163 0.9859891 0.96678436 0.94790024 0.9293349 0.9110859 0.893151 0.87552744 0.8582125 0.8412031 0.82449627 0.8080888 0.7919772 0.7761582 0.7606282 0.7453836 0.73042077 0.7157359 0.70132524 0.687185 0.6733113 0.6597003 0.64634806 0.6332507 0.6204043 0.60780495 0.59544873 0.5833317 0.57145005 0.55979985 0.5483772 0.5371784 0.5261995 0.51543677 0.50488645 0.49454486 0.4844083 0.4744731 0.46473566 0.45519242 0.44583985 0.4366745 0.4276929 0.4188916 0.41026735 0.4018168 0.39353663 0.38542372 0.37747484 0.3696869 0.36205682 0.35458156 0.34725815 0.3400837 0.33305523 0.32616997 0.3194251 0.31281793 0.3063457 0.30000576 0.29379556 0.28771248 0.28175402 0.27591774 0.27020115 0.26460192 0.2591177 0.25374615 0.24848507 0.2433322 0.2382854 0.23334253 0.22850147 0.22376019 0.21911666 0.21456891 0.210115 0.20575303 0.20148113 0.19729747 0.19320026 0.18918774 0.18525817 0.18140987 0.17764117 0.17395045 0.17033613 0.16679662 0.16333042 0.159936 0.15661189 0.15335667 0.1501689 0.1470472 0.14399023 0.14099665 0.13806514 0.13519444 0.13238329 0.12963046 0.12693477 0.124295 0.12171004 0.11917873 0.11669997 0.114272684 0.1118958 0.109568276 0.10728909 0.10505725 0.102871776 0.1007317 0.09863609 0.09658402 0.0945746 0.09260693 0.09068016 0.088793434 0.08694593 0.08513683 0.083365336 0.08163067 0.079932064 0.07826878 0.07664008 0.07504525 0.07348358 0.071954384 0.070457 0.068990745 0.06755499 0.06614909 0.06477245 0.06342443 0.062104456 0.06081194 0.05954631 0.058307007 0.05709349 0.055905215 0.054741666 0.05360232 0.05248668 0.051394254 0.05032456

</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="2.4" PeakHeight="271.522" Num="5" zHalfNm="251.429" Error="0.946">
-47.273 -2.449 1.626 -0.96 0.39
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="10" 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="6517.619" A="-1.07484103E11" B="3.3174104E7" C="-2559.605" Error="0.00178"/>
<QuasiParabolic ID="2" StartDistance="6517.619" EndDistance="6555.237" A="0.0" B="-440.9935" C="0.10770099" Error="0.0107"/>
<QuasiParabolic ID="3" StartDistance="6555.237" EndDistance="6591.0" A="3.6664938E10" B="-1.1252233E7" C="863.3204" Error="0.0107"/>
<QuasiParabolic ID="4" StartDistance="6591.0" EndDistance="6592.0" A="-9.0614176E11" B="2.74836896E8" C="-20839.693" Error="3.03E-11"/>
<QuasiParabolic ID="5" StartDistance="6592.0" EndDistance="6594.0" A="1.14855174E13" B="-3.48476851E9" C="264324.53" Error="0.0144"/>
<QuasiParabolic ID="6" StartDistance="6594.0" EndDistance="6599.0" A="1.95051926E12" B="-5.9274592E8" C="45032.58" Error="0.0172"/>
<QuasiParabolic ID="7" StartDistance="6599.0" EndDistance="6616.0" A="6.9316819E12" B="-2.10241792E9" C="159419.0" Error="0.00541"/>
<QuasiParabolic ID="8" StartDistance="6616.0" EndDistance="6633.0" A="1.77489589E12" B="-5.4353459E8" C="41607.383" Error="0.0166"/>
<QuasiParabolic ID="9" StartDistance="6633.0" EndDistance="6641.522" A="-2.16162034E13" B="6.5094129E9" C="-490048.53" Error="0.00445"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="112.856" Depth="0.154"/>
<TopsideChapman PeakHeight="271.522" PeakDensity="71464.02" PeakScaleHeight="14.855" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
