<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-12 -102 22:40:00.000"
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="20.0">
<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: 45% PACIFIC flags: F2 cusps do not match</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.12 (102) 22:40:00</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">
FF202610204122240001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="27" >
<URSI ID="00" Val="2.925" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.828" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.196" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.000" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="30" Val="2.250" Name="foEs" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.325" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.350" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="232.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="232.500" Name="h`F2" Units="km" QL="/" DL="/" />
<URSI ID="34" Val="102.500" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.800" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="255.079" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.325" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.325" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="234.252" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="217.809" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="5.948" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<Custom Name="fminEs" Val="2.000" Description="Minimum frequency of Es-layer" Units="MHz" />
<URSI ID="94" Val="23.506" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.577" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="12.655" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="22.040" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.760" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="2">
<Trace Type="standard" Layer="F2" Polarization="O" Num="25">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 2.7 2.725 2.75 2.775 2.8 2.825 2.85 2.875 2.9 2.925
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
232.500 232.500 232.500 232.500 235.000 235.000 237.500 237.993 238.542 239.155 239.846 240.629 241.526 242.561 243.770 245.201 246.922 249.030 251.671 255.079 259.643 266.073 275.806 292.267 326.113
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
42 42 57 57 63 63 57 0 0 0 0 0 0 51 57 60 54 57 48 48 36 36 0 0 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
3.125 -3.125 3.125 3.125 -3.125 -3.125 3.125 -3.125 -3.125 3.125 3.125 -3.125 3.125 -3.125 -3.125 3.125 3.125 3.125 3.125 3.125 -3.125 -3.125 -3.125 -3.125 -3.125
</TraceValueList>
</Trace>
<Trace Type="standard" Layer="Es" Polarization="O" Num="11">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.0 2.025 2.05 2.075 2.1 2.125 2.15 2.175 2.2 2.225 2.25
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
102.500 102.500 102.500 102.500 102.500 102.500 102.500 102.500 102.500 102.500 102.500
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
60 57 57 54 60 60 60 84 87 60 57
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-3.125 -3.125 3.125 3.125 -3.125 3.125 -3.125 3.125 3.125 -3.125 -3.125
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="331">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 138.58333 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 167.16667 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 195.75 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 234.252 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0
</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 0.3533988 0.35268724 0.35168076 0.35038465 0.34873247 0.34680796 0.3446216 0.34204412 0.33923516 0.3360058 0.33251932 0.32860458 0.3243659 0.31978112 0.314722 0.3093164 0.3034716 0.29713094 0.29034886 0.28298154 0.27503994 0.26650268 0.25724816 0.24721296 0.23637795 0.22454801 0.21165071 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 0.2044898 0.20987755 0.2152653 0.22065306 0.22604081 0.23142858 0.23681633 0.24220408 0.24759184 0.2529796 0.25836736 0.2637551 0.26914287 0.27453062 0.27991837 0.28530613 0.29069388 0.29608163 0.3014694 0.30685714 0.3122449 0.31763265 0.3230204 0.32840815 0.3337959 0.3391837 0.34457144 0.3499592 0.354 0.3629249 0.40239045 0.44747418 0.4972243 0.5506431 0.6070076 0.66597784 0.7274894 0.7916852 0.85879886 0.92916876 1.0031567 1.0811611 1.1635679 1.250731 1.3428802 1.440097 1.542193 1.6485158 1.7580578 1.8692392 1.9801701 2.0887587 2.1931102 2.2916322 2.3832703 2.46737 2.5436788 2.6122208 2.6731577 2.7267802 2.7733831 2.813277 2.846738 2.874018 2.8953238 2.9108212 2.920628 2.924823 2.925 2.9240143 2.9197085 2.9121485 2.9015164 2.887994 2.8717628 2.853001 2.8318858 2.8085892 2.7832794 2.7561195 2.7272673 2.6968749 2.6650887 2.6320484 2.5978875 2.5627334 2.526707 2.4899223 2.4524877 2.4145052 2.3760705 2.3372734 2.298198 2.258923 2.2195218 2.1800618 2.1406066 2.1012142 2.0619385 2.0228293 1.9839315 1.9452871 1.9069339 1.8689061 1.8312352 1.793949 1.757073 1.7206297 1.684639 1.6491185 1.614084 1.5795485 1.5455236 1.5120192 1.479043 1.4466017 1.4147006 1.3833433 1.3525326 1.3222698 1.2925556 1.2633893 1.23477 1.2066954 1.1791629 1.152169 1.1257098 1.0997807 1.0743768 1.0494928 1.025123 1.0012611 0.9779009 0.95503575 0.9326587 0.9107627 0.88934064 0.86838514 0.8478887 0.82784384 0.8082429 0.78907824 0.7703422 0.7520269 0.7341248 0.7166281 0.69952905 0.68282014 0.6664937 0.6505422 0.63495815 0.619734 0.6048625 0.5903364 0.57614845 0.56229156 0.5487587 0.53554296 0.5226375 0.5100357 0.49773085 0.4857165 0.4739862 0.46253374 0.45135283 0.4404375 0.4297817 0.41937962 0.4092255 0.3993137 0.38963866 0.38019502 0.37097743 0.36198068 0.3531997 0.34462944 0.33626503 0.32810166 0.32013467 0.31235945 0.3047715 0.29736644 0.29013994 0.2830878 0.2762059 0.2694902 0.2629368 0.25654185 0.25030154 0.24421224 0.23827031 0.23247227 0.22681469 0.22129418 0.21590747 0.21065138 0.20552276 0.20051856 0.19563581 0.19087155 0.18622297 0.18168727 0.17726173 0.17294371 0.1687306 0.1646199 0.1606091 0.15669581 0.15287767 0.14915238 0.1455177 0.14197144 0.13851145 0.13513565 0.131842 0.1286285 0.12549323 0.12243427 0.11944979 0.116537966 0.113697045 0.1109253 0.108221054 0.10558268 0.10300855 0.10049714 0.0980469 0.09565635 0.09332404 0.09104856 0.08882852 0.086662576 0.08454941 0.08248775 0.08047632 0.07851392 0.076599345 0.07473143 0.07290905 0.07113109 0.069396466 0.067704126 0.06605304 0.06444221 0.062870644 0.061337393 0.05984152 0.05838212 0.0569583 0.055569194 0.054213956 0.05289176 0.05160181 0.050343305

</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="2.925" PeakHeight="234.252" Num="5" zHalfNm="217.809" Error="1.001">
-40.141 3.048 -2.259 1.241 -0.391
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="11" 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="6508.583" A="-1.85709953E11" B="5.7317888E7" C="-4422.5513" Error="0.00149"/>
<QuasiParabolic ID="2" StartDistance="6508.583" EndDistance="6537.167" A="0.0" B="-233.46678" C="0.07589076" Error="0.00443"/>
<QuasiParabolic ID="3" StartDistance="6537.167" EndDistance="6539.0" A="8.7183642E11" B="-2.66765936E8" C="20406.41" Error="0.0155"/>
<QuasiParabolic ID="4" StartDistance="6539.0" EndDistance="6565.0" A="3.5760349E10" B="-1.104608E7" C="852.9719" Error="0.0186"/>
<QuasiParabolic ID="5" StartDistance="6565.0" EndDistance="6567.0" A="1.48113426E13" B="-4.5123661E9" C="343680.06" Error="0.0141"/>
<QuasiParabolic ID="6" StartDistance="6567.0" EndDistance="6573.0" A="8.1268399E12" B="-2.4765801E9" C="188678.86" Error="0.0105"/>
<QuasiParabolic ID="7" StartDistance="6573.0" EndDistance="6577.0" A="1.41286493E13" B="-4.3027809E9" C="327595.72" Error="0.00282"/>
<QuasiParabolic ID="8" StartDistance="6577.0" EndDistance="6587.0" A="2.71403597E13" B="-8.2595118E9" C="628396.3" Error="0.0138"/>
<QuasiParabolic ID="9" StartDistance="6587.0" EndDistance="6591.0" A="1.50011937E11" B="-6.4477172E7" C="6335.067" Error="0.00343"/>
<QuasiParabolic ID="10" StartDistance="6591.0" EndDistance="6604.252" A="-3.11337712E13" B="9.4284022E9" C="-713804.44" Error="0.00175"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="85.75" Depth="0.154"/>
<TopsideChapman PeakHeight="234.252" PeakDensity="106149.195" PeakScaleHeight="12.655" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
