<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-05 -095 06:45:00.000"
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" >
2026.04.05 (095) 06:45:00</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">
FF202609504050645001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.850" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="4.073" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="15.681" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.500" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.500" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.150" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="202.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="202.500" 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="3.725" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="232.981" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.500" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.500" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="210.073" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="194.841" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.098" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="21.760" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.908" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="11.724" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="19.760" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.050" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="55">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 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 3.575 3.6 3.625 3.65 3.675 3.7 3.725 3.75 3.775 3.8 3.825 3.85
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 205.000 205.000 205.000 205.000 205.000 205.000 205.000 207.500 207.500 207.500 207.500 207.500 207.500 207.500 207.500 210.000 210.000 210.000 210.000 210.000 210.000 212.500 212.500 212.500 212.500 215.000 215.000 215.000 217.500 217.500 220.000 220.000 220.000 220.000 220.000 222.500 225.000 225.000 225.000 227.135 229.737 232.981 237.135 242.646 250.308 261.687 280.353
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 69 66 66 69 69 69 69 69 69 69 57 60 57 57 51 0 0 0 63 66 93 90 87 0 0 87 90 93 96 99 99 99 99 99 99 96 99 96 90 90 90 84 81 87 90 87 84 75 63 54 54 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 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 10.9375 -1.5625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="303">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 131.58333 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 153.16667 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 174.75 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 210.073 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0
</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 0.35378125 0.3531261 0.35197777 0.35040918 0.3483742 0.34589443 0.34293804 0.3394836 0.33552164 0.3310028 0.32600388 0.32038844 0.31416655 0.30732158 0.2998168 0.29156289 0.28250316 0.2724882 0.26154712 0.24950138 0.23614414 0.226 0.226 0.226 0.226 0.226 0.226 0.226 0.226 0.226 0.226 0.226 0.226 0.226 0.226 0.226 0.226 0.226 0.226 0.226 0.226 0.226 0.226 0.226 0.226 0.23094209 0.23687258 0.24280308 0.2487336 0.2546641 0.2605946 0.2665251 0.2724556 0.2783861 0.2843166 0.2902471 0.2961776 0.3021081 0.30803862 0.3139691 0.31989962 0.3258301 0.33176062 0.33769113 0.3436216 0.34955212 0.354 0.36437556 0.41240287 0.47111154 0.5392322 0.61465603 0.6957421 0.78178674 0.8728228 0.96933484 1.0721247 1.1821402 1.3004589 1.4281577 1.5662562 1.7154369 1.8756204 2.0455647 2.2225225 2.4021173 2.57917 2.7487278 2.9070559 3.0520313 3.1828017 3.2994516 3.4025786 3.492997 3.5715597 3.6390796 3.6962702 3.7437572 3.782055 3.811557 3.832583 3.845346 3.8499784 3.85 3.8476884 3.8401945 3.8278027 3.8108141 3.78953 3.7642481 3.7352624 3.70286 3.6673217 3.628918 3.5879114 3.5445533 3.499085 3.4517362 3.4027257 3.35226 3.3005357 3.2477367 3.1940358 3.1395957 3.0845678 3.029093 2.9733028 2.9173183 2.861252 2.8052075 2.7492795 2.693555 2.6381142 2.5830288 2.5283647 2.4741812 2.4205313 2.367463 2.3150194 2.2632372 2.2121503 2.1617875 2.1121736 2.0633302 2.0152755 1.9680241 1.9215885 1.8759781 1.8312 1.7872591 1.7441584 1.7018987 1.6604797 1.619899 1.5801532 1.5412377 1.5031463 1.4658724 1.4294082 1.3937451 1.3588737 1.3247843 1.2914664 1.2589091 1.227101 1.1960306 1.1656859 1.1360546 1.1071244 1.0788829 1.0513173 1.024415 0.99816304 0.9725488 0.9475595 0.9231823 0.89940464 0.8762139 0.8535975 0.83154315 0.8100385 0.78907144 0.7686299 0.74870205 0.7292763 0.71034104 0.69188493 0.67389685 0.6563658 0.639281 0.6226318 0.6064079 0.59059894 0.575195 0.56018627 0.54556304 0.5313159 0.51743567 0.5039133 0.4907398 0.47790664 0.46540532 0.45322752 0.44136512 0.4298103 0.41855517 0.40759227 0.39691418 0.38651368 0.37638372 0.3665174 0.35690802 0.34754902 0.33843398 0.32955667 0.32091096 0.31249094 0.3042908 0.29630488 0.28852764 0.2809537 0.2735778 0.26639488 0.25939986 0.25258794 0.24595433 0.23949444 0.23320374 0.22707784 0.22111244 0.2153034 0.20964663 0.20413816 0.19877413 0.19355078 0.18846443 0.18351153 0.17868857 0.17399217 0.16941904 0.16496593 0.1606297 0.15640733 0.1522958 0.14829224 0.14439382 0.14059776 0.13690142 0.13330217 0.12979744 0.12638481 0.12306182 0.119826145 0.11667548 0.11360761 0.11062035 0.10771159 0.10487928 0.102121405 0.099436015 0.096821204 0.09427512 0.09179596 0.08938197 0.08703144 0.084742695 0.08251412 0.08034414 0.0782312 0.07617382 0.07417052 0.0722199 0.07032056 0.06847116 0.066670395 0.064916976 0.06320966 0.06154724 0.059928533 0.05835239 0.05681769 0.055323355 0.05386831 0.052451532 0.05107201

</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="3.85" PeakHeight="210.073" Num="5" zHalfNm="194.841" Error="0.586">
-38.093 4.735 -2.935 1.454 -0.484
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="17" 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="6501.583" A="-2.82569605E11" B="8.721284E7" C="-6729.2603" Error="0.0016"/>
<QuasiParabolic ID="2" StartDistance="6501.583" EndDistance="6523.167" A="0.0" B="1235.5067" C="-0.13887416" Error="0.0107"/>
<QuasiParabolic ID="3" StartDistance="6523.167" EndDistance="6525.0" A="-2.77696794E12" B="8.5111699E8" C="-65214.96" Error="0.0376"/>
<QuasiParabolic ID="4" StartDistance="6525.0" EndDistance="6538.0" A="2.33641083E11" B="-7.1675088E7" C="5497.073" Error="0.0391"/>
<QuasiParabolic ID="5" StartDistance="6538.0" EndDistance="6539.0" A="-1.82308189E12" B="5.5748461E8" C="-42618.535" Error="7.38E-11"/>
<QuasiParabolic ID="6" StartDistance="6539.0" EndDistance="6540.0" A="1.95434421E12" B="-5.9786822E8" C="45724.703" Error="7.11E-11"/>
<QuasiParabolic ID="7" StartDistance="6540.0" EndDistance="6541.0" A="-1.82403662E12" B="5.5759987E8" C="-42613.84" Error="6.85E-11"/>
<QuasiParabolic ID="8" StartDistance="6541.0" EndDistance="6542.0" A="1.95555072E12" B="-5.9806048E8" C="45725.895" Error="6.61E-11"/>
<QuasiParabolic ID="9" StartDistance="6542.0" EndDistance="6543.0" A="-1.82501861E12" B="5.5772346E8" C="-42609.78" Error="0.0"/>
<QuasiParabolic ID="10" StartDistance="6543.0" EndDistance="6544.0" A="1.95677127E12" B="-5.9825696E8" C="45727.402" Error="6.16E-11"/>
<QuasiParabolic ID="11" StartDistance="6544.0" EndDistance="6545.0" A="1.44955482E13" B="-4.4304015E9" C="338525.72" Error="0.0"/>
<QuasiParabolic ID="12" StartDistance="6545.0" EndDistance="6550.0" A="1.79195662E13" B="-5.4767022E9" C="418457.03" Error="0.0257"/>
<QuasiParabolic ID="13" StartDistance="6550.0" EndDistance="6552.0" A="1.92100381E13" B="-5.8707389E9" C="448536.2" Error="0.00234"/>
<QuasiParabolic ID="14" StartDistance="6552.0" EndDistance="6555.0" A="3.00828443E13" B="-9.1896668E9" C="701812.06" Error="0.00177"/>
<QuasiParabolic ID="15" StartDistance="6555.0" EndDistance="6565.0" A="6.6102697E13" B="-2.01797059E10" C="1540106.4" Error="0.0164"/>
<QuasiParabolic ID="16" StartDistance="6565.0" EndDistance="6580.073" A="-5.9888214E13" B="1.82029025E10" C="-1383169.1" Error="0.00323"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="64.75" Depth="0.128"/>
<TopsideChapman PeakHeight="210.073" PeakDensity="183901.98" PeakScaleHeight="11.724" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
