<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-01 -091 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" >
2026.04.01 (091) 07:35:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.18" 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">
FF202609104010735001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.550" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.894" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.824" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.575" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.575" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.850" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="210.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="210.000" 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="3.400" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="248.608" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.575" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.575" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="220.725" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="203.981" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.776" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="23.976" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.852" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="12.821" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="22.790" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.570" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="40">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 2.95 2.975 3.0 3.025 3.05 3.075 3.1 3.125 3.15 3.175 3.2 3.225 3.25 3.275 3.3 3.325 3.35 3.375 3.4 3.425 3.45 3.475 3.5 3.525 3.55
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
210.000 210.000 210.000 210.833 211.667 212.500 213.750 215.000 215.000 215.000 216.250 217.500 218.611 219.722 220.833 221.944 223.056 224.167 225.278 226.389 227.500 227.500 227.500 230.000 232.500 232.500 235.000 236.250 237.500 239.231 241.165 243.338 245.799 248.608 251.846 255.617 260.066 265.394 271.891 279.986
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
78 0 78 0 0 75 0 75 63 66 0 54 0 0 0 0 0 0 0 0 96 96 99 99 96 99 93 0 90 93 99 102 105 105 99 93 0 0 0 81
</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 -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 1.5625 1.5625 1.5625 1.5625
</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 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 133.33333 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 156.66667 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 220.725 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0
</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 0.3538169 0.35312194 0.35206616 0.35058403 0.34861574 0.3462502 0.3433677 0.34006724 0.336247 0.33195284 0.32717335 0.32179055 0.31589526 0.3093662 0.30218917 0.2942784 0.28568256 0.27623004 0.26589635 0.25450236 0.24202472 0.22809964 0.21270788 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.204 0.20614286 0.21257143 0.219 0.22542857 0.23185714 0.23828572 0.24471429 0.25114286 0.25757143 0.264 0.27042857 0.27685714 0.2832857 0.28971428 0.29614285 0.30257142 0.309 0.31542858 0.32185715 0.32828572 0.3347143 0.34114286 0.34757143 0.354 0.3928064 0.4379885 0.48903543 0.5450717 0.60528624 0.6691133 0.7362604 0.8067262 0.88062835 0.9582013 1.0397685 1.1256822 1.2162945 1.3119595 1.4129746 1.5195552 1.6317105 1.749262 1.8716724 1.9980284 2.1270673 2.2571018 2.3862615 2.5126574 2.634506 2.7503676 2.8591554 2.9601004 3.0528302 3.1371586 3.2130923 3.2807658 3.3403673 3.3920975 3.4361894 3.472832 3.502222 3.5245073 3.5398054 3.548201 3.55 3.5498412 3.546643 3.5394926 3.5286012 3.5141816 3.4964457 3.4756036 3.4518635 3.4254289 3.3964992 3.365268 3.3319237 3.2966478 3.259615 3.2209938 3.1809444 3.1396205 3.0971684 3.0537262 3.0094259 2.964391 2.9187386 2.872579 2.8260155 2.7791445 2.7320564 2.6848352 2.6375592 2.5903013 2.5431283 2.496102 2.4492803 2.402715 2.3564541 2.3105416 2.2650175 2.2199175 2.1752744 2.1311176 2.087473 2.0443642 2.0018115 1.9598333 1.9184449 1.8776598 1.8374896 1.7979436 1.7590297 1.7207539 1.6831208 1.6461337 1.6097944 1.5741037 1.5390612 1.5046656 1.4709146 1.4378053 1.4053338 1.3734955 1.3422854 1.3116978 1.2817266 1.2523651 1.2236063 1.195443 1.1678674 1.1408716 1.1144476 1.0885868 1.0632808 1.0385209 1.0142984 0.99060446 0.96743006 0.9447662 0.92260396 0.90093434 0.8797483 0.8590368 0.838791 0.8190019 0.79966074 0.7807587 0.76228696 0.744237 0.7266003 0.7093683 0.6925327 0.6760853 0.66001785 0.6443224 0.62899107 0.61401594 0.5993895 0.58510405 0.5711522 0.5575267 0.5442203 0.53122604 0.51853687 0.506146 0.49404687 0.48223284 0.47069746 0.45943448 0.44843772 0.43770108 0.42721865 0.4169846 0.40699324 0.39723897 0.38771638 0.37842005 0.3693448 0.3604855 0.35183707 0.34339467 0.33515346 0.32710874 0.31925595 0.31159058 0.3041082 0.29680458 0.28967544 0.28271675 0.27592444 0.26929462 0.26282343 0.2565071 0.25034204 0.2443246 0.2384513 0.23271874 0.22712356 0.2216625 0.21633239 0.2111301 0.20605259 0.2010969 0.19626012 0.19153942 0.18693203 0.18243524 0.17804644 0.173763 0.16958244 0.16550231 0.16152018 0.15763372 0.15384065 0.15013872 0.14652577 0.14299965 0.13955829 0.13619964 0.13292174 0.12972265 0.12660049 0.1235534 0.120579585 0.117677286 0.11484479 0.11208042 0.10938254 0.10674956 0.10417992 0.10167209 0.0992246 0.096835986 0.09450485 0.0922298 0.09000949 0.087842606 0.08572787 0.083664015 0.08164983 0.07968412 0.07776572 0.075893484 0.0740663 0.072283104 0.07054283 0.06884444 0.06718692 0.065569304 0.06399062 0.062449947 0.060946353 0.059478953 0.058046877 0.05664927 0.055285312 0.05395419 0.052655112 0.051387306 0.05015002

</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="3.55" PeakHeight="220.725" Num="5" zHalfNm="203.981" Error="1.03">
-42.371 2.961 -2.059 1.13 -0.386
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="18" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6460.0205" EndDistance="6480.001" A="-5.5027394E11" B="1.69837632E8" C="-13104.63" Error="0.0016"/>
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<QuasiParabolic ID="2" StartDistance="6503.333" EndDistance="6526.667" A="0.0" B="313.85883" C="-0.006618036" Error="0.00349"/>
<QuasiParabolic ID="3" StartDistance="6526.667" EndDistance="6528.0" A="-1.99013682E12" B="6.0966682E8" C="-46691.918" Error="0.00634"/>
<QuasiParabolic ID="4" StartDistance="6528.0" EndDistance="6529.0" A="2.63149113E12" B="-8.0627322E8" C="61759.367" Error="0.0"/>
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<QuasiParabolic ID="6" StartDistance="6530.0" EndDistance="6531.0" A="2.63320293E12" B="-8.0655763E8" C="61762.78" Error="0.0"/>
<QuasiParabolic ID="7" StartDistance="6531.0" EndDistance="6532.0" A="-2.48195632E12" B="7.5986688E8" C="-58159.477" Error="0.0"/>
<QuasiParabolic ID="8" StartDistance="6532.0" EndDistance="6533.0" A="2.38230123E12" B="-7.2949555E8" C="55845.61" Error="1.28E-10"/>
<QuasiParabolic ID="9" StartDistance="6533.0" EndDistance="6535.0" A="-6.0330567E11" B="1.84512432E8" C="-14107.549" Error="0.00976"/>
<QuasiParabolic ID="10" StartDistance="6535.0" EndDistance="6549.0" A="1.18305202E11" B="-3.6332524E7" C="2789.5396" Error="0.00941"/>
<QuasiParabolic ID="11" StartDistance="6549.0" EndDistance="6551.0" A="1.14401152E13" B="-3.49390157E9" C="266766.4" Error="0.0"/>
<QuasiParabolic ID="12" StartDistance="6551.0" EndDistance="6556.0" A="1.06709543E13" B="-3.25907917E9" C="248843.77" Error="0.00705"/>
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<QuasiParabolic ID="14" StartDistance="6559.0" EndDistance="6563.0" A="2.05419562E13" B="-6.2693914E9" C="478353.88" Error="0.00124"/>
<QuasiParabolic ID="15" StartDistance="6563.0" EndDistance="6574.0" A="3.7165619E13" B="-1.13352643E10" C="864295.75" Error="0.00496"/>
<QuasiParabolic ID="16" StartDistance="6574.0" EndDistance="6580.0" A="-2.16210562E13" B="6.5493345E9" C="-495956.66" Error="0.00196"/>
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<ProfileValley Model="ULCAR" Width="70.0" Depth="0.15"/>
<TopsideChapman PeakHeight="220.725" PeakDensity="156358.56" PeakScaleHeight="12.821" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
