<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-21 -111 07:40:00.000"
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="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" >
2026.04.21 (111) 07:40:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.20" 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">
FF202611104210740001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.275" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.749" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="8.529" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.050" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.050" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="2.600" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="237.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="237.500" 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="0.200" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.050" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="237.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.050" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.050" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="239.849" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="222.812" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.754" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="24.167" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.367" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="12.854" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="24.630" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.030" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="10">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.05 2.075 2.1 2.125 2.15 2.175 2.2 2.225 2.25 2.275
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
237.500 245.000 250.627 256.844 263.750 271.466 280.144 289.975 301.206 314.157
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 63 63 0 0 0 63 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 4.6875
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="329">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 139.75 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 169.5 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 199.25 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 239.849 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0
</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 0.35347393 0.352762 0.35182965 0.3506064 0.3491724 0.34738788 0.34533682 0.34299496 0.34037665 0.33746356 0.3342082 0.33063674 0.3267138 0.32253745 0.31796023 0.31297803 0.30765462 0.30189866 0.29567927 0.28909197 0.28191414 0.2741947 0.26597098 0.25704813 0.24743798 0.23701459 0.22570056 0.21345264 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 0.20258823 0.2077647 0.21294117 0.21811765 0.22329412 0.2284706 0.23364706 0.23882353 0.244 0.24917647 0.25435293 0.2595294 0.2647059 0.26988235 0.27505884 0.2802353 0.28541178 0.29058823 0.2957647 0.30094117 0.30611765 0.3112941 0.3164706 0.32164705 0.32682353 0.332 0.33717647 0.34235293 0.3475294 0.3527059 0.354 0.3801684 0.41577455 0.4525202 0.49065307 0.5303704 0.57183254 0.615168 0.66046536 0.70782775 0.7572802 0.80886585 0.8625573 0.9183451 0.9761213 1.0357972 1.0972128 1.1601853 1.2244688 1.2898065 1.3559135 1.422444 1.4890369 1.5553215 1.6209024 1.6853781 1.7483385 1.8093976 1.8681308 1.9241672 1.9771218 2.0266562 2.0724323 2.1141477 2.1515234 2.184318 2.2123075 2.2353122 2.2531745 2.2657845 2.273054 2.275 2.2749693 2.273252 2.268998 2.2623413 2.253417 2.2423604 2.2293053 2.2143838 2.1977265 2.1794598 2.159708 2.1385913 2.1162255 2.0927227 2.0681903 2.0427315 2.0164447 1.9894232 1.961756 1.9335277 1.9048178 1.8757014 1.8462496 1.8165284 1.7866002 1.7565233 1.7263516 1.6961359 1.6659229 1.6357559 1.605675 1.5757172 1.5459164 1.5163037 1.4869074 1.4577534 1.4288652 1.400264 1.3719689 1.3439969 1.3163632 1.2890813 1.262163 1.2356187 1.2094572 1.183686 1.1583115 1.1333388 1.1087722 1.0846146 1.0608685 1.0375352 1.0146153 0.99210876 0.970015 0.94833267 0.92705995 0.90619457 0.8857337 0.8656744 0.8460129 0.8267455 0.80786806 0.7893762 0.7712653 0.7535306 0.736167 0.71916944 0.70253265 0.68625116 0.67031956 0.6547322 0.63948363 0.624568 0.60997975 0.5957131 0.58176225 0.5681216 0.5547854 0.54174787 0.52900344 0.51654637 0.50437117 0.4924722 0.48084396 0.46948102 0.45837796 0.4475295 0.4369303 0.42657518 0.41645902 0.40657678 0.39692345 0.38749415 0.378284 0.3692883 0.36050233 0.3519215 0.34354132 0.33535734 0.32736522 0.31956065 0.31193945 0.30449748 0.29723075 0.29013526 0.28320715 0.2764426 0.26983786 0.26338932 0.25709337 0.25094652 0.24494532 0.23908643 0.23336656 0.22778249 0.22233106 0.21700919 0.21181387 0.20674214 0.20179112 0.196958 0.19224 0.18763444 0.18313867 0.17875013 0.17446627 0.17028463 0.16620281 0.16221848 0.1583293 0.15453303 0.15082748 0.14721052 0.14368002 0.14023395 0.13687031 0.13358714 0.13038252 0.1272546 0.12420155 0.121221595 0.118312985 0.11547403 0.11270308 0.10999849 0.1073587 0.10478216 0.10226736 0.09981283 0.09741712 0.09507885 0.09279663 0.09056912 0.08839503 0.08627306 0.084201984 0.082180575 0.080207646 0.078282036 0.07640262 0.074568294 0.072777964 0.071030594 0.06932515 0.06766062 0.06603603 0.06445043 0.062902875 0.061392464 0.0599183 0.058479514 0.057075262 0.055704713 0.05436706 0.05306152 0.051787317 0.0505437

</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="2.275" PeakHeight="239.849" Num="5" zHalfNm="222.812" Error="1.481">
-40.021 -0.657 -0.092 0.151 0.02
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="7" 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="6509.75" A="-1.71482022E11" B="5.2926548E7" C="-4083.7134" Error="0.00152"/>
<QuasiParabolic ID="2" StartDistance="6509.75" EndDistance="6539.5" A="0.0" B="2506.1304" C="-0.34495813" Error="0.0432"/>
<QuasiParabolic ID="3" StartDistance="6539.5" EndDistance="6565.0" A="8.3607747E9" B="-2672607.8" C="213.22034" Error="0.0432"/>
<QuasiParabolic ID="4" StartDistance="6565.0" EndDistance="6569.0" A="1.24043356E12" B="-3.78018496E8" C="28800.111" Error="0.0318"/>
<QuasiParabolic ID="5" StartDistance="6569.0" EndDistance="6599.0" A="7.3002904E12" B="-2.22300442E9" C="169231.38" Error="0.0664"/>
<QuasiParabolic ID="6" StartDistance="6599.0" EndDistance="6609.849" A="-2.1027451E13" B="6.3624602E9" C="-481281.16" Error="0.00875"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="89.25" Depth="0.154"/>
<TopsideChapman PeakHeight="239.849" PeakDensity="64213.71" PeakScaleHeight="12.854" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
