<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-29 -119 05:55:00.000"
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" >
2026.04.29 (119) 05:55:00</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="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202611904290555001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.475" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.695" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.839" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.950" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.950" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.775" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="252.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="252.500" 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="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.350" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="275.294" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.950" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.950" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="249.643" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="234.542" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.334" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="21.689" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.740" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="11.356" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="21.820" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.020" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="22">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
252.500 252.500 252.500 255.000 255.000 257.500 257.500 260.000 260.862 261.838 262.951 264.231 265.721 267.476 269.573 272.124 275.294 279.338 284.678 292.053 302.903 320.439
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 75 78 90 90 87 90 90 90 90 90 87 87 108 108 84 81 78 75 81 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="333">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 143.25 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 176.5 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 209.75 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 249.643 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0
</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 0.35306174 0.352277 0.35134757 0.35012823 0.34869877 0.34706512 0.34523398 0.343142 0.34080055 0.3382224 0.33542153 0.33234677 0.3290187 0.32545936 0.32156938 0.31744388 0.31299958 0.30822688 0.30312735 0.29771414 0.29194102 0.28570086 0.27913103 0.27213752 0.26456448 0.256557 0.2479685 0.23874018 0.22879031 0.21807829 0.20660281 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 0.2 0.2 0.20231579 0.20694737 0.21157895 0.21621053 0.22084211 0.22547369 0.23010527 0.23473684 0.23936842 0.244 0.24863158 0.25326315 0.25789472 0.2625263 0.26715788 0.27178946 0.27642104 0.28105262 0.2856842 0.29031578 0.29494736 0.29957893 0.3042105 0.3088421 0.31347367 0.31810525 0.32273683 0.3273684 0.332 0.33663157 0.34126315 0.34589472 0.3505263 0.354 0.36394122 0.40557328 0.45045364 0.4988544 0.5510219 0.6071939 0.66754884 0.73225605 0.8014148 0.875102 0.95331395 1.0360029 1.12307 1.2143501 1.3096248 1.408599 1.5109795 1.616364 1.7243326 1.8344038 1.9460782 2.058783 2.1719317 2.2849083 2.3970242 2.5075753 2.6158378 2.72107 2.8224897 2.919287 3.010713 3.0959392 3.1742198 3.244807 3.3070056 3.3601704 3.403757 3.437274 3.4603622 3.472753 3.475 3.4746668 3.4702759 3.4610212 3.4472013 3.4291153 3.4070609 3.3813317 3.3522158 3.319994 3.2849388 3.2473128 3.207369 3.1653488 3.1214828 3.07599 3.0290768 2.9809394 2.9317608 2.8817139 2.830959 2.7796469 2.7279165 2.6758971 2.6237085 2.57146 2.5192533 2.4671803 2.4153259 2.3637667 2.3125722 2.2618055 2.2115228 2.161775 2.112607 2.0640583 2.0161643 1.9689556 1.9224584 1.8766955 1.8316858 1.7874452 1.7439865 1.7013197 1.6594524 1.61839 1.5781355 1.5386902 1.5000536 1.4622238 1.425197 1.3889688 1.3535333 1.3188834 1.2850114 1.2519088 1.2195661 1.1879735 1.1571205 1.1269959 1.0975888 1.0688872 1.0408792 1.0135528 0.9868954 0.9608946 0.9355377 0.9108122 0.8867053 0.86320436 0.8402967 0.81796974 0.7962109 0.77500767 0.75434786 0.73421913 0.71460944 0.6955069 0.67689955 0.6587759 0.64112455 0.62393415 0.6071936 0.5908921 0.5750188 0.55956334 0.5445153 0.52986467 0.5156015 0.501716 0.48819882 0.4750405 0.462232 0.4497644 0.43762895 0.42581716 0.41432068 0.4031314 0.39224133 0.38164273 0.371328 0.3612897 0.3515207 0.34201387 0.33276233 0.3237594 0.31499854 0.3064733 0.2981775 0.29010507 0.2822501 0.2746068 0.2671695 0.25993282 0.25289136 0.2460399 0.2393734 0.23288693 0.22657564 0.22043487 0.21446006 0.20864673 0.20299059 0.1974874 0.19213305 0.18692356 0.18185504 0.17692366 0.17212577 0.16745776 0.16291612 0.15849748 0.1541985 0.15001595 0.1459467 0.1419877 0.13813595 0.13438858 0.13074276 0.12719573 0.12374486 0.12038752 0.11712119 0.113943405 0.11085178 0.10784398 0.10491773 0.10207083 0.09930114 0.09660655 0.09398505 0.09143464 0.088953406 0.08653948 0.084191024 0.081906274 0.079683505 0.07752103 0.07541723 0.073370494 0.07137929 0.06944211 0.067557484 0.06572399 0.06394026 0.062204912 0.060516655 0.05887421 0.05727633 0.05572181 0.054209474 0.052738175 0.051306803

</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="3.475" PeakHeight="249.643" Num="5" zHalfNm="234.542" Error="0.539">
-39.218 -0.775 0.132 -0.067 0.035
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="8" 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="6513.25" A="-1.37420415E11" B="4.2413708E7" C="-3272.5374" Error="0.00164"/>
<QuasiParabolic ID="2" StartDistance="6513.25" EndDistance="6546.5" A="0.0" B="2585.6267" C="-0.3569517" Error="0.0497"/>
<QuasiParabolic ID="3" StartDistance="6546.5" EndDistance="6575.0" A="8.836272E8" B="-377125.16" C="37.026955" Error="0.0497"/>
<QuasiParabolic ID="4" StartDistance="6575.0" EndDistance="6580.0" A="1.49782554E12" B="-4.55720672E8" C="34663.91" Error="0.0758"/>
<QuasiParabolic ID="5" StartDistance="6580.0" EndDistance="6588.0" A="1.20003683E13" B="-3.64798285E9" C="277237.03" Error="0.072"/>
<QuasiParabolic ID="6" StartDistance="6588.0" EndDistance="6610.0" A="2.30123488E13" B="-6.9910246E9" C="530959.1" Error="0.037"/>
<QuasiParabolic ID="7" StartDistance="6610.0" EndDistance="6619.643" A="-6.383406E13" B="1.92862556E10" C="-1456732.2" Error="0.00983"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="99.75" Depth="0.154"/>
<TopsideChapman PeakHeight="249.643" PeakDensity="149821.66" PeakScaleHeight="11.356" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
