<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-07 -097 06:35:00.000"
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" >
2026.04.07 (097) 06:35:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.97" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202609704070635001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="5.050" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.898" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="19.686" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="4.625" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="4.625" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="5.225" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="245.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="245.000" 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="4.950" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="258.032" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="4.625" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="4.625" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="235.535" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="224.581" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.161" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="15.885" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.332" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="10.583" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="15.930" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.970" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="18">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
4.625 4.65 4.675 4.7 4.725 4.75 4.775 4.8 4.825 4.85 4.875 4.9 4.925 4.95 4.975 5.0 5.025 5.05
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
245.000 246.000 247.000 248.000 249.000 250.000 251.000 252.000 253.000 254.000 255.000 255.000 256.438 258.032 259.808 261.799 264.048 266.607
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
72 0 0 0 0 0 0 0 0 0 72 72 72 72 69 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 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="319">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 141.5 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 204.5 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 235.535 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0
</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 0.3529118 0.35205317 0.35097662 0.34968653 0.34811512 0.3462709 0.3442354 0.34187606 0.33927825 0.33638793 0.33322465 0.32980946 0.32603815 0.32200715 0.31768805 0.31300464 0.30795586 0.3025528 0.29676917 0.29057935 0.28398937 0.27689454 0.26927269 0.26112098 0.25231692 0.24289067 0.23271252 0.2217551 0.20985778 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 0.2048889 0.20977777 0.21466666 0.21955556 0.22444445 0.22933333 0.23422222 0.23911111 0.244 0.2488889 0.25377777 0.25866666 0.26355556 0.26844445 0.27333334 0.27822223 0.28311113 0.288 0.29288888 0.29777777 0.30266666 0.30755556 0.31244445 0.31733334 0.32222223 0.32711112 0.332 0.33688888 0.34177777 0.34666666 0.35155556 0.354 0.39032027 0.464692 0.5446459 0.63260674 0.7303932 0.8394116 0.9607609 1.0951014 1.2425892 1.4029355 1.5753943 1.758864 1.9519551 2.153241 2.3611627 2.5742233 2.7908008 3.0093918 3.2283175 3.4458265 3.6600068 3.8687093 4.069617 4.2601104 4.437286 4.5980186 4.73907 4.8571677 4.949241 5.0126457 5.0454354 5.05 5.0490565 5.040825 5.0245614 5.0008035 4.9700875 4.9329457 4.8899 4.841462 4.7881265 4.73037 4.6686516 4.6034083 4.5350556 4.4639864 4.3905716 4.31516 4.238076 4.1596246 4.080087 3.999725 3.9187799 3.8374734 3.756009 3.674573 3.5933344 3.5124469 3.432049 3.3522663 3.2732103 3.1949809 3.1176665 3.0413454 2.9660854 2.8919463 2.8189788 2.7472262 2.676725 2.607505 2.5395904 2.4729996 2.4077463 2.3438404 2.2812865 2.2200868 2.1602397 2.1017404 2.044582 1.988755 1.9342477 1.8810469 1.8291374 1.778503 1.7291257 1.6809871 1.6340674 1.5883464 1.5438026 1.500415 1.4581611 1.417019 1.3769661 1.3379797 1.3000368 1.2631149 1.2271912 1.1922431 1.1582478 1.1251831 1.0930269 1.0617571 1.0313523 1.0017908 0.97305167 0.94511425 0.917958 0.89156294 0.8659093 0.8409777 0.81674933 0.79320556 0.7703281 0.7480992 0.72650146 0.7055178 0.68513155 0.6653265 0.6460867 0.6273966 0.6092411 0.5916055 0.5744752 0.55783635 0.54167515 0.52597827 0.51073265 0.4959257 0.481545 0.4675786 0.45401475 0.44084206 0.42804947 0.4156262 0.40356174 0.39184585 0.3804686 0.36942035 0.3586917 0.3482735 0.33815685 0.3283331 0.31879392 0.30953106 0.30053663 0.2918029 0.28332236 0.27508774 0.26709196 0.2593281 0.25178948 0.24446964 0.23736224 0.23046114 0.22376037 0.21725416 0.21093689 0.20480308 0.19884741 0.19306476 0.18745008 0.18199854 0.17670539 0.17156605 0.16657606 0.16173108 0.15702693 0.1524595 0.14802486 0.1437191 0.13953854 0.13547951 0.13153848 0.12771206 0.12399688 0.12038974 0.11688748 0.11348707 0.110185556 0.10698005 0.10386776 0.10084599 0.09791211 0.09506356 0.09229786 0.08961261 0.08700546 0.08447415 0.08201646 0.07963026 0.07731348 0.07506409 0.07288014 0.07075972 0.068700984 0.066702135 0.06476144 0.06287719 0.061047774 0.05927157 0.05754704 0.055872682 0.05424704 0.052668687 0.05113626

</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="5.05" PeakHeight="235.535" Num="5" zHalfNm="224.581" Error="0.306">
-30.663 -0.771 0.502 -0.245 0.142
</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="6511.5" A="-1.53036653E11" B="4.7233536E7" C="-3644.4375" Error="0.00157"/>
<QuasiParabolic ID="2" StartDistance="6511.5" EndDistance="6543.0" A="0.0" B="8561.923" C="-1.2748678" Error="0.158"/>
<QuasiParabolic ID="3" StartDistance="6543.0" EndDistance="6573.0" A="-5.3875749E10" B="1.6306649E7" C="-1233.7343" Error="0.158"/>
<QuasiParabolic ID="4" StartDistance="6573.0" EndDistance="6574.0" A="5.1854086E12" B="-1.57787686E9" C="120033.84" Error="0.0"/>
<QuasiParabolic ID="5" StartDistance="6574.0" EndDistance="6577.0" A="3.0720691E13" B="-9.3464453E9" C="710889.3" Error="0.0469"/>
<QuasiParabolic ID="6" StartDistance="6577.0" EndDistance="6579.0" A="1.27990424E13" B="-3.8966505E9" C="296582.3" Error="0.0206"/>
<QuasiParabolic ID="7" StartDistance="6579.0" EndDistance="6581.0" A="4.8237E13" B="-1.46697032E10" C="1115327.8" Error="0.015"/>
<QuasiParabolic ID="8" StartDistance="6581.0" EndDistance="6599.0" A="8.3748507E13" B="-2.54618358E10" C="1935274.0" Error="0.0356"/>
<QuasiParabolic ID="9" StartDistance="6599.0" EndDistance="6605.535" A="-2.65652099E14" B="8.0433185E10" C="-6088291.5" Error="0.00801"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="94.5" Depth="0.154"/>
<TopsideChapman PeakHeight="235.535" PeakDensity="316408.2" PeakScaleHeight="10.583" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
