<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-13 -103 07:35:00.000"
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: 100%</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.13 (103) 07:35:00</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">
FF202610304130735001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.725" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.676" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="10.016" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.425" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.425" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="2.950" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="257.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="257.500" 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="2.600" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="273.421" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.425" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.425" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="249.749" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="234.450" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.776" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="21.831" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.469" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="11.533" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="22.120" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.030" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="13">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.425 2.45 2.475 2.5 2.525 2.55 2.575 2.6 2.625 2.65 2.675 2.7 2.725
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
257.500 259.095 260.857 262.814 265.000 267.458 270.242 273.421 277.086 281.358 286.401 292.444 299.817
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
72 75 75 75 75 72 0 0 0 0 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 1.5625 -1.5625 1.5625 -1.5625 -1.5625 -1.5625 -1.5625 -7.8125
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="327">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 144.065 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 178.13 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 212.195 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 249.749 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0
</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 0.35306162 0.35235164 0.35142174 0.35027573 0.34899163 0.34742752 0.34566385 0.34363678 0.34142753 0.33897603 0.33629557 0.33340064 0.3302415 0.32683918 0.3232161 0.31927535 0.31505296 0.3105306 0.30575427 0.3006163 0.29516298 0.28935468 0.28311557 0.2765816 0.26951423 0.26201293 0.2539888 0.24542125 0.23623942 0.2263656 0.21573181 0.2043324 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 0.20393308 0.20845383 0.21297461 0.21749538 0.22201614 0.22653691 0.23105769 0.23557845 0.24009922 0.24462 0.24914075 0.25366154 0.2581823 0.26270306 0.26722383 0.2717446 0.27626538 0.28078616 0.2853069 0.28982767 0.29434845 0.29886922 0.30339 0.30791077 0.3124315 0.3169523 0.32147306 0.32599384 0.3305146 0.33503538 0.33955613 0.3440769 0.34859768 0.35311845 0.354 0.3875285 0.431604 0.47844404 0.52814966 0.5808032 0.6364726 0.695222 0.75709623 0.8221065 0.8902246 0.96143353 1.0356376 1.1126869 1.1924341 1.274621 1.3589734 1.4451526 1.5327593 1.6213187 1.7103562 1.7993016 1.8875691 1.9745374 2.0595737 2.1420412 2.2212622 2.2966354 2.3675153 2.4333436 2.4935565 2.5476599 2.5951986 2.6357853 2.6690722 2.6947968 2.7127354 2.7227468 2.725 2.7248745 2.7219403 2.7152798 2.7051165 2.6916742 2.6751764 2.6558433 2.6338916 2.6095326 2.5829718 2.5544076 2.5240314 2.4920263 2.4585674 2.423821 2.3879447 2.3510878 2.3133912 2.2749865 2.2359977 2.1965399 2.1567214 2.1166415 2.076393 2.0360615 1.9957256 1.9554577 1.915324 1.8753847 1.835695 1.7963046 1.7572584 1.7185967 1.6803557 1.6425676 1.6052607 1.5684602 1.5321877 1.4964621 1.4612994 1.4267132 1.3927146 1.3593127 1.3265145 1.2943251 1.2627484 1.2317863 1.2014393 1.171707 1.1425878 1.1140788 1.0861763 1.0588759 1.0321723 1.0060598 0.9805317 0.95558107 0.9312005 0.9073821 0.88411754 0.8613985 0.83921623 0.81756175 0.7964259 0.7757995 0.75567317 0.73603743 0.71688294 0.69820005 0.6799794 0.66221136 0.6448866 0.6279957 0.6115293 0.5954781 0.57983303 0.564585 0.5497249 0.535244 0.52113354 0.5073849 0.49398962 0.48093933 0.46822584 0.45584106 0.4437771 0.43202615 0.4205806 0.40943298 0.3985759 0.3880022 0.37770483 0.3676769 0.3579117 0.34840256 0.33914304 0.33012685 0.3213478 0.31279984 0.30447707 0.29637375 0.28848425 0.28080302 0.2733248 0.26604423 0.25895628 0.25205594 0.2453383 0.23879868 0.2324324 0.22623494 0.22020191 0.21432902 0.20861204 0.20304693 0.19762968 0.19235641 0.18722333 0.18222678 0.17736313 0.17262891 0.16802068 0.16353513 0.15916902 0.15491919 0.15078257 0.14675617 0.14283705 0.1390224 0.13530941 0.13169543 0.1281778 0.124754 0.1214215 0.1181779 0.11502083 0.11194798 0.108957134 0.1060461 0.10321276 0.10045504 0.09777093 0.09515847 0.09261575 0.09014093 0.08773218 0.08538775 0.08310593 0.080885045 0.07872347 0.076619625 0.074571975 0.07257902 0.0706393 0.068751395 0.06691392 0.06512553 0.06338493 0.061690822 0.060041983 0.058437195 0.056875285 0.055355106 0.05387555 0.05243553 0.05103399

</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="2.725" PeakHeight="249.749" Num="5" zHalfNm="234.45" Error="0.469">
-37.392 -0.269 0.024 0.095 -0.012
</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="6514.065" A="-1.3095442E11" B="4.0418032E7" C="-3118.55" Error="0.00166"/>
<QuasiParabolic ID="2" StartDistance="6514.065" EndDistance="6548.13" A="0.0" B="-2776.6099" C="0.46627745" Error="0.0562"/>
<QuasiParabolic ID="3" StartDistance="6548.13" EndDistance="6576.0" A="7.9148286E10" B="-2.4222186E7" C="1853.2474" Error="0.0562"/>
<QuasiParabolic ID="4" StartDistance="6576.0" EndDistance="6580.0" A="-7.5257564E11" B="2.28735216E8" C="-17380.133" Error="0.0183"/>
<QuasiParabolic ID="5" StartDistance="6580.0" EndDistance="6590.0" A="8.5915463E12" B="-2.61142323E9" C="198437.39" Error="0.0641"/>
<QuasiParabolic ID="6" StartDistance="6590.0" EndDistance="6598.0" A="1.65590535E13" B="-5.0294835E9" C="381901.75" Error="0.011"/>
<QuasiParabolic ID="7" StartDistance="6598.0" EndDistance="6610.0" A="1.21821221E13" B="-3.70273843E9" C="281360.28" Error="0.028"/>
<QuasiParabolic ID="8" StartDistance="6610.0" EndDistance="6619.749" A="-3.7636811E13" B="1.13710684E10" C="-858867.2" Error="0.00853"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="102.195" Depth="0.154"/>
<TopsideChapman PeakHeight="249.749" PeakDensity="92129.34" PeakScaleHeight="11.533" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
