<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-13 -103 08:05:00.000"
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: F2 cusps do not match</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.13 (103) 08:05:00</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">
FF202610304130805001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.650" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.528" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="9.349" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.450" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.450" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="2.800" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="280.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="280.000" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.575" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="302.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.450" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.450" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="261.786" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="239.840" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.713" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="31.257" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.626" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="16.460" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="31.730" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.020" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="9">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.45 2.475 2.5 2.525 2.55 2.575 2.6 2.625 2.65
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
280.000 285.000 290.000 295.000 300.000 302.500 310.000 316.250 323.991
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
81 0 0 0 69 72 69 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="409">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 142.85867 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 175.71733 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 208.576 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 261.786 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0 474.0 475.0 476.0 477.0 478.0 479.0 480.0 481.0 482.0 483.0 484.0 485.0 486.0 487.0 488.0 489.0 490.0 491.0 492.0 493.0 494.0 495.0 496.0 497.0
</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 0.35354906 0.35298675 0.3522771 0.35127333 0.35005456 0.34855255 0.34692052 0.34501943 0.34285972 0.34045315 0.3378128 0.33495292 0.3318229 0.32844365 0.324712 0.32078433 0.3165085 0.31192896 0.30703753 0.3018372 0.29621828 0.2902516 0.28386173 0.27710527 0.26983902 0.26209807 0.2537597 0.24480851 0.23522544 0.22493988 0.21378513 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 0.20132479 0.20601152 0.21069826 0.215385 0.22007175 0.22475848 0.22944522 0.23413196 0.2388187 0.24350543 0.24819218 0.2528789 0.25756565 0.2622524 0.26693913 0.27162588 0.27631262 0.28099936 0.28568608 0.29037282 0.29505956 0.2997463 0.30443305 0.3091198 0.31380653 0.31849328 0.32318 0.32786673 0.33255348 0.33724022 0.34192696 0.3466137 0.35130045 0.354 0.36590725 0.3946954 0.4246349 0.45586628 0.48853004 0.5227235 0.5585427 0.59604865 0.63528734 0.67628187 0.71906245 0.7635969 0.80986756 0.8578111 0.9073768 0.95847017 1.0109949 1.0648398 1.119903 1.1760302 1.2331123 1.2909998 1.3495603 1.4086431 1.4681199 1.5278486 1.5876666 1.6474489 1.7070258 1.7662638 1.8250034 1.8830991 1.9403803 1.9966964 2.0518827 2.1057475 2.1581414 2.2088764 2.2577636 2.3046267 2.349274 2.391527 2.4311876 2.4680748 2.5020025 2.5328052 2.5603156 2.5843735 2.6048498 2.6216185 2.6345775 2.6436462 2.6487675 2.65 2.6499565 2.648614 2.6454504 2.6405394 2.6339564 2.625776 2.6160734 2.6049228 2.592398 2.578572 2.5635169 2.5473034 2.5300004 2.5116758 2.4923959 2.4722247 2.4512246 2.4294565 2.4069788 2.3838482 2.3601193 2.335845 2.3110757 2.2858598 2.260244 2.2342727 2.2079887 2.1814327 2.1546433 2.1276572 2.1005096 2.0732336 2.045861 2.0184216 1.9909434 1.963453 1.9359758 1.9085351 1.8811532 1.8538508 1.8266478 1.799562 1.7726105 1.7458093 1.7191731 1.6927155 1.6664493 1.6403861 1.6145368 1.588911 1.563518 1.5383662 1.5134628 1.4888147 1.4644281 1.4403082 1.4164603 1.3928883 1.3695962 1.3465871 1.3238637 1.3014286 1.2792833 1.2574294 1.235868 1.2146 1.1936256 1.1729448 1.1525577 1.1324637 1.1126621 1.0931519 1.073932 1.0550011 1.0363575 1.0179995 0.9999252 0.9821327 0.96461964 0.9473839 0.9304229 0.91373426 0.8973153 0.8811634 0.8652758 0.8496496 0.8342819 0.8191699 0.8043104 0.78970045 0.77533704 0.761217 0.7473372 0.7336946 0.72028595 0.7071081 0.69415784 0.68143207 0.66892755 0.6566411 0.64456964 0.6327099 0.62105876 0.6096132 0.5983699 0.58732593 0.5764781 0.56582344 0.5553588 0.5450813 0.5349879 0.5250757 0.51534164 0.50578284 0.49639654 0.48717985 0.47812992 0.469244 0.46051934 0.45195326 0.44354305 0.43528607 0.42717972 0.4192214 0.4114086 0.4037388 0.3962095 0.38881832 0.38156283 0.37444064 0.36744943 0.3605869 0.3538508 0.34723887 0.34074894 0.3343788 0.3281264 0.32198957 0.31596625 0.31005445 0.30425218 0.2985574 0.29296824 0.28748277 0.28209913 0.27681544 0.27162996 0.26654088 0.26154643 0.25664487 0.25183457 0.24711384 0.24248104 0.23793454 0.23347281 0.22909427 0.22479738 0.22058068 0.21644267 0.21238191 0.20839699 0.20448649 0.20064905 0.19688334 0.193188 0.18956175 0.18600334 0.18251146 0.17908493 0.17572251 0.17242302 0.16918528 0.16600817 0.16289055 0.15983133 0.1568294 0.15388371 0.15099323 0.1481569 0.14537373 0.14264272 0.13996293 0.13733336 0.13475311 0.13222124 0.12973686 0.12729907 0.124907024 0.12255985 0.120256715 0.11799679 0.11577928 0.11360338 0.11146832 0.10937334 0.107317686 0.10530062 0.10332142 0.10137938 0.099473804 0.09760401 0.09576932 0.0939691 0.09220268 0.090469435 0.08876874 0.0871 0.0854626 0.083855964 0.0822795 0.080732666 0.07921488 0.07772562 0.07626433 0.0748305 0.07342362 0.072043166 0.07068866 0.0693596 0.068055525 0.06677595 0.06552043 0.0642885 0.06307972 0.06189366 0.060729895 0.059588004 0.058467574 0.057368204 0.0562895 0.055231072 0.05419254 0.05317353 0.052173674 0.051192615 0.05023

</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="2.65" PeakHeight="261.786" Num="5" zHalfNm="239.84" Error="0.464">
-52.912 -0.533 0.352 -0.218 0.101
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="16" 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="6512.859" A="-1.40688196E11" B="4.3422284E7" C="-3350.3596" Error="0.00169"/>
<QuasiParabolic ID="2" StartDistance="6512.859" EndDistance="6545.717" A="0.0" B="-111.48211" C="0.057148173" Error="0.00292"/>
<QuasiParabolic ID="3" StartDistance="6545.717" EndDistance="6547.0" A="1.91676062E12" B="-5.856736E8" C="44738.746" Error="0.00487"/>
<QuasiParabolic ID="4" StartDistance="6547.0" EndDistance="6548.0" A="-2.19845047E12" B="6.7145517E8" C="-51269.254" Error="1.71E-10"/>
<QuasiParabolic ID="5" StartDistance="6548.0" EndDistance="6549.0" A="2.08993609E12" B="-6.3837581E8" C="48748.383" Error="0.0"/>
<QuasiParabolic ID="6" StartDistance="6549.0" EndDistance="6551.0" A="-7.9248995E11" B="2.41888704E8" C="-18457.64" Error="0.00936"/>
<QuasiParabolic ID="7" StartDistance="6551.0" EndDistance="6553.0" A="4.87985381E11" B="-1.49036448E8" C="11379.418" Error="0.00862"/>
<QuasiParabolic ID="8" StartDistance="6553.0" EndDistance="6578.0" A="3.04925041E10" B="-9407923.0" C="725.63184" Error="0.00962"/>
<QuasiParabolic ID="9" StartDistance="6578.0" EndDistance="6579.0" A="1.36972788E13" B="-4.16470938E9" C="316574.03" Error="4.72E-10"/>
<QuasiParabolic ID="10" StartDistance="6579.0" EndDistance="6580.0" A="6.8637169E12" B="-2.08732314E9" C="158693.94" Error="2.17E-10"/>
<QuasiParabolic ID="11" StartDistance="6580.0" EndDistance="6583.0" A="1.77962471E12" B="-5.4200634E8" C="41268.645" Error="0.00728"/>
<QuasiParabolic ID="12" StartDistance="6583.0" EndDistance="6590.0" A="4.9733781E12" B="-1.51230976E9" C="114966.305" Error="0.00356"/>
<QuasiParabolic ID="13" StartDistance="6590.0" EndDistance="6610.0" A="7.6453401E12" B="-2.32322381E9" C="176492.4" Error="0.00647"/>
<QuasiParabolic ID="14" StartDistance="6610.0" EndDistance="6622.0" A="-2.65729422E12" B="7.9406342E8" C="-59308.44" Error="0.00693"/>
<QuasiParabolic ID="15" StartDistance="6622.0" EndDistance="6631.786" A="-1.90767998E13" B="5.7531412E9" C="-433748.0" Error="0.00265"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="98.576" Depth="0.154"/>
<TopsideChapman PeakHeight="261.786" PeakDensity="87127.79" PeakScaleHeight="16.46" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
