<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-13 -103 07:55:00.000"
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: 90% PACIFIC flags: One of F2 cusps was derived from the other</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.13 (103) 07:55:00</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">
FF202610304130755001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.525" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.875" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="9.783" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.375" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.375" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="2.800" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="255.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="255.000" 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="2.500" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="265.712" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.375" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.375" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="238.804" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="226.763" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.714" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="17.119" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.356" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="10.583" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="17.450" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.000" 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" >
2.375 2.4 2.425 2.45 2.475 2.5 2.525
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
255.000 257.500 257.500 260.000 262.500 265.712 275.252
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
81 81 69 69 72 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="300">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 143.303 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 176.606 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 209.909 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 238.804 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0
</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 0.35306174 0.352277 0.35134757 0.35012823 0.34869877 0.34706512 0.34523398 0.343142 0.34087047 0.33829105 0.33548877 0.33241248 0.32914743 0.32552144 0.32169086 0.3175612 0.31311247 0.30839026 0.3033359 0.2979118 0.29212695 0.28596416 0.2794581 0.27243567 0.26490209 0.2569478 0.24835555 0.23914722 0.22932218 0.21864136 0.20717256 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 0.20182194 0.20644614 0.21107036 0.21569456 0.22031876 0.22494298 0.22956719 0.23419139 0.2388156 0.24343981 0.24806401 0.25268823 0.25731245 0.26193663 0.26656085 0.27118507 0.27580926 0.28043348 0.2850577 0.28968188 0.2943061 0.29893032 0.3035545 0.30817872 0.31280294 0.31742713 0.32205135 0.32667556 0.33129975 0.33592397 0.3405482 0.34517238 0.3497966 0.354 0.3585632 0.41042998 0.4662175 0.5267219 0.5924459 0.66369 0.7405298 0.82281536 0.91013753 1.001974 1.0976511 1.1964216 1.2974801 1.4000481 1.5032809 1.6064256 1.7086186 1.809047 1.9068438 2.0011103 2.09085 2.175062 2.2527003 2.3226366 2.3837755 2.435071 2.4755402 2.5043485 2.5208783 2.525 2.5249157 2.5219254 2.5148478 2.5039504 2.489502 2.4717693 2.4510155 2.427497 2.401464 2.3731575 2.3428092 2.3106408 2.2768626 2.241675 2.2052653 2.1678116 2.1294792 2.090423 2.050787 2.0107048 1.9702992 1.9296843 1.8889638 1.8482333 1.8075795 1.7670815 1.7268103 1.6868304 1.6471995 1.607969 1.5691848 1.530887 1.4931113 1.4558883 1.4192446 1.383203 1.3477825 1.3129989 1.278865 1.2453907 1.2125837 1.1804491 1.1489902 1.1182083 1.0881029 1.0586723 1.0299132 1.001821 0.97439057 0.94761515 0.9214875 0.8959996 0.8711428 0.84690785 0.8232851 0.8002643 0.7778352 0.7559869 0.7347086 0.71398914 0.69381726 0.6741817 0.6550711 0.63647395 0.61837894 0.60077477 0.58365005 0.56699365 0.5507944 0.5350414 0.51972365 0.50483054 0.4903514 0.4762759 0.46259367 0.44929475 0.43636915 0.4238072 0.41159937 0.3997363 0.3882088 0.37700802 0.36612508 0.35555148 0.34527883 0.33529893 0.32560375 0.31618553 0.3070366 0.2981496 0.2895172 0.28113234 0.27298817 0.26507792 0.25739503 0.24993317 0.2426861 0.23564775 0.22881225 0.22217384 0.21572697 0.20946617 0.20338619 0.19748186 0.19174817 0.18618026 0.1807734 0.17552298 0.17042454 0.1654737 0.16066623 0.15599804 0.1514651 0.14706354 0.14278959 0.13863954 0.13460986 0.13069707 0.1268978 0.12320877 0.1196268 0.11614879 0.11277176 0.109492764 0.10630899 0.10321767 0.100216135 0.09730179 0.094472095 0.09172462 0.08905697 0.086466834 0.083951965 0.081510186 0.07913937 0.076837465 0.07460247 0.07243244 0.07032551 0.06827982 0.066293605 0.06436514 0.062492754 0.06067481 0.058909725 0.05719597 0.055532053 0.05391652 0.052347977 0.050825052

</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="2.525" PeakHeight="238.804" Num="5" zHalfNm="226.763" Error="0.146">
-28.687 -0.367 0.243 -0.144 0.06
</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="6513.303" A="-1.36985084E11" B="4.2279348E7" C="-3262.1702" Error="0.00164"/>
<QuasiParabolic ID="2" StartDistance="6513.303" EndDistance="6546.606" A="0.0" B="989.6812" C="-0.11191957" Error="0.0186"/>
<QuasiParabolic ID="3" StartDistance="6546.606" EndDistance="6548.0" A="-5.2618194E12" B="1.60712294E9" C="-122716.27" Error="0.0369"/>
<QuasiParabolic ID="4" StartDistance="6548.0" EndDistance="6569.0" A="1.28937878E11" B="-3.9412484E7" C="3011.8508" Error="0.0746"/>
<QuasiParabolic ID="5" StartDistance="6569.0" EndDistance="6579.0" A="-1.21404875E11" B="3.6806956E7" C="-2789.5986" Error="0.00989"/>
<QuasiParabolic ID="6" StartDistance="6579.0" EndDistance="6582.0" A="1.83314321E13" B="-5.5728102E9" C="423537.9" Error="0.0339"/>
<QuasiParabolic ID="7" StartDistance="6582.0" EndDistance="6585.0" A="1.02096469E13" B="-3.10493312E9" C="236066.22" Error="0.0237"/>
<QuasiParabolic ID="8" StartDistance="6585.0" EndDistance="6601.0" A="2.02336434E13" B="-6.1494272E9" C="467235.1" Error="0.0506"/>
<QuasiParabolic ID="9" StartDistance="6601.0" EndDistance="6608.804" A="-5.2962253E13" B="1.60277873E10" C="-1212602.4" Error="0.0106"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="99.909" Depth="0.154"/>
<TopsideChapman PeakHeight="238.804" PeakDensity="79102.05" PeakScaleHeight="10.583" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
