<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-01 -121 07:55:00.000"
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" >
2026.05.01 (121) 07:55:00</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="75.82641" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202612105010755001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.925" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.966" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="15.566" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.025" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.025" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.250" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="220.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="220.000" 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="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.850" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="250.525" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.025" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.025" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="221.683" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="208.182" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.409" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="19.400" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.856" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="10.583" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="19.060" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.230" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="37">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 3.875 3.9 3.925
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
220.000 220.000 220.000 220.000 222.500 222.500 222.500 222.500 222.500 225.000 225.000 225.000 225.000 225.000 227.500 227.500 227.500 230.000 230.000 230.000 232.500 232.500 232.500 233.329 234.245 235.261 236.394 237.668 239.108 240.750 242.641 244.840 247.430 250.525 254.290 258.968 264.937
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
87 84 96 96 99 99 99 99 99 99 96 96 96 93 96 99 99 96 87 87 87 90 87 84 81 81 84 84 69 69 0 66 90 87 93 90 96
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="297">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 135.66667 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 161.33333 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 221.683 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0
</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 0.353812 0.35324875 0.3523882 0.35108605 0.34949994 0.34749252 0.3450799 0.34228173 0.3391207 0.33555436 0.33154994 0.32708573 0.3222145 0.31684378 0.31099588 0.3045735 0.29760364 0.290026 0.28171796 0.27274016 0.2629728 0.2523031 0.24063194 0.22781542 0.21374473 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 0.204 0.21 0.216 0.222 0.228 0.234 0.24 0.246 0.252 0.258 0.264 0.27 0.276 0.282 0.288 0.294 0.3 0.306 0.312 0.318 0.324 0.33 0.336 0.342 0.348 0.354 0.40351018 0.46046788 0.5246058 0.59553385 0.67298394 0.7567828 0.84693074 0.9435431 1.0467904 1.1568489 1.2739344 1.3981019 1.5293128 1.6673639 1.8117732 1.961746 2.1162636 2.2738545 2.432857 2.5913925 2.7474713 2.8990824 3.044448 3.181846 3.3099158 3.4275153 3.533759 3.6279755 3.7096646 3.7785077 3.8342738 3.8768127 3.90603 3.9218738 3.925 3.9246583 3.9192193 3.9074767 3.889847 3.866748 3.8385935 3.8057914 3.7687397 3.7278252 3.6834211 3.6358857 3.5855615 3.5327737 3.4778306 3.4210231 3.3626242 3.3028898 3.242058 3.180351 3.117974 3.0551171 2.9919548 2.9286473 2.865341 2.8021696 2.739254 2.676704 2.614618 2.5530849 2.4921832 2.431983 2.3725462 2.3139272 2.2561724 2.1993232 2.1434133 2.0884724 2.034524 1.9815876 1.9296783 1.8788074 1.8289826 1.7802083 1.7324865 1.6858162 1.6401942 1.5956153 1.5520723 1.5095567 1.4680579 1.4275646 1.3880643 1.3495432 1.311987 1.2753806 1.239708 1.204953 1.171099 1.1381288 1.1060252 1.0747708 1.0443479 1.0147388 0.98592573 0.95789117 0.93061733 0.90408677 0.878282 0.8531859 0.82878125 0.80505127 0.7819793 0.75954896 0.737744 0.7165485 0.69594693 0.6759239 0.6564643 0.63755333 0.61917657 0.60131985 0.5839692 0.5671111 0.55073214 0.5348195 0.51936036 0.5043424 0.48975348 0.47558177 0.46181577 0.44844425 0.43545622 0.42284098 0.41058815 0.39868754 0.3871293 0.37590382 0.36500165 0.35441372 0.3441311 0.33414516 0.32444748 0.31502986 0.30588433 0.29700315 0.28837878 0.28000388 0.27187127 0.26397407 0.25630552 0.24885908 0.24162833 0.23460712 0.2277894 0.22116934 0.21474122 0.20849952 0.20243889 0.1965541 0.19084005 0.18529184 0.17990468 0.17467391 0.169595 0.16466358 0.15987538 0.15522623 0.15071213 0.14632918 0.14207356 0.13794157 0.13392967 0.13003434 0.12625222 0.12258003 0.11901457 0.115552746 0.11219156 0.108928084 0.10575949 0.102683015 0.09969599 0.09679581 0.09397997 0.09124601 0.088591546 0.08601428 0.08351196 0.081082426 0.07872354 0.07643326 0.0742096 0.07205061 0.06995442 0.067919195 0.065943174 0.06402463 0.062161893 0.060353342 0.0585974 0.056892537 0.05523727 0.053630155 0.052069794 0.050554823

</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="3.925" PeakHeight="221.683" Num="5" zHalfNm="208.182" Error="0.326">
-35.234 1.038 -0.738 0.391 -0.14
</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="6505.667" A="-2.30120505E11" B="7.1024848E7" C="-5480.187" Error="0.00139"/>
<QuasiParabolic ID="2" StartDistance="6505.667" EndDistance="6531.333" A="0.0" B="19.069214" C="0.03708035" Error="2.88E-4"/>
<QuasiParabolic ID="3" StartDistance="6531.333" EndDistance="6532.0" A="-6.4096101E12" B="1.96252288E9" C="-150223.45" Error="0.0"/>
<QuasiParabolic ID="4" StartDistance="6532.0" EndDistance="6533.0" A="4.38889402E12" B="-1.34381632E9" C="102864.37" Error="3.5E-10"/>
<QuasiParabolic ID="5" StartDistance="6533.0" EndDistance="6534.0" A="-4.25766683E12" B="1.30322509E9" C="-99725.67" Error="3.3E-10"/>
<QuasiParabolic ID="6" StartDistance="6534.0" EndDistance="6535.0" A="4.39167589E12" B="-1.34426278E9" C="102867.52" Error="3.12E-10"/>
<QuasiParabolic ID="7" StartDistance="6535.0" EndDistance="6536.0" A="-4.26017974E12" B="1.30358899E9" C="-99722.516" Error="0.0"/>
<QuasiParabolic ID="8" StartDistance="6536.0" EndDistance="6537.0" A="3.96119245E12" B="-1.21213082E9" C="92728.51" Error="2.8E-10"/>
<QuasiParabolic ID="9" StartDistance="6537.0" EndDistance="6539.0" A="-1.04322223E12" B="3.18973632E8" C="-24382.125" Error="0.0182"/>
<QuasiParabolic ID="10" StartDistance="6539.0" EndDistance="6556.0" A="1.16375896E11" B="-3.5697788E7" C="2737.573" Error="0.0186"/>
<QuasiParabolic ID="11" StartDistance="6556.0" EndDistance="6562.0" A="1.56634857E13" B="-4.7785626E9" C="364456.97" Error="0.00685"/>
<QuasiParabolic ID="12" StartDistance="6562.0" EndDistance="6563.0" A="2.25911568E13" B="-6.8900132E9" C="525341.6" Error="0.0"/>
<QuasiParabolic ID="13" StartDistance="6563.0" EndDistance="6568.0" A="3.00416353E13" B="-9.1604623E9" C="698315.06" Error="0.0107"/>
<QuasiParabolic ID="14" StartDistance="6568.0" EndDistance="6576.0" A="5.7756497E13" B="-1.75998239E10" C="1340775.6" Error="0.00284"/>
<QuasiParabolic ID="15" StartDistance="6576.0" EndDistance="6583.0" A="9.7933979E12" B="-3.01250637E9" C="231642.6" Error="0.0127"/>
<QuasiParabolic ID="16" StartDistance="6583.0" EndDistance="6591.683" A="-9.2818287E13" B="2.81622405E10" C="-2136179.8" Error="0.005"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="77.0" Depth="0.154"/>
<TopsideChapman PeakHeight="221.683" PeakDensity="191136.78" PeakScaleHeight="10.583" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
