<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-02 -122 00:50:00.000"
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" >
2026.05.02 (122) 00:50:00</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">
FF202612205020050001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.725" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.897" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="14.516" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.475" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.475" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.100" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="212.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="212.500" 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="3.650" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="258.233" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.475" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.475" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="222.483" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="205.903" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.653" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="23.729" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.918" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="12.537" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="22.770" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.390" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="51">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.475 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
212.500 212.500 212.500 212.500 212.500 215.000 215.000 215.000 215.000 217.500 217.500 217.500 217.500 217.500 220.000 220.000 220.625 221.250 221.875 222.500 222.500 222.500 225.000 225.000 225.000 227.500 227.500 227.500 230.000 230.000 230.000 232.500 232.500 232.500 237.500 238.333 239.167 240.000 240.000 242.500 242.500 242.500 247.500 250.000 250.000 252.500 255.000 258.233 262.097 266.797 272.637
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
51 0 0 0 0 0 48 51 51 48 75 75 51 0 0 48 0 0 0 0 75 75 63 63 87 0 90 90 87 0 63 63 84 84 102 0 0 99 102 99 99 99 99 96 84 84 96 93 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
</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 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 133.91667 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 157.83333 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 181.75 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 222.483 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0
</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 0.35317364 0.35216394 0.3506408 0.34876516 0.34647703 0.34372342 0.34053037 0.33679065 0.33268294 0.3279859 0.32283023 0.31710255 0.31084144 0.3038868 0.296354 0.2880265 0.27895737 0.26904914 0.25815907 0.24620353 0.23298319 0.21839198 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 0.20107317 0.2075122 0.21395122 0.22039025 0.22682928 0.23326829 0.23970732 0.24614634 0.25258535 0.25902438 0.2654634 0.27190244 0.27834147 0.2847805 0.2912195 0.29765853 0.30409756 0.3105366 0.31697562 0.32341462 0.32985365 0.33629268 0.3427317 0.34917074 0.354 0.36828673 0.4216445 0.47320905 0.52551925 0.5798378 0.6370555 0.6978852 0.762944 0.83284175 0.908129 0.9892898 1.076774 1.1708859 1.2717862 1.3793876 1.4933826 1.6132108 1.7379473 1.8665497 1.9977182 2.1301055 2.2623482 2.3931558 2.5213287 2.6458356 2.7657795 2.8803835 2.9890795 3.0913105 3.186689 3.2748742 3.3556325 3.4287214 3.4940026 3.551329 3.6006086 3.641751 3.6747072 3.6994238 3.7158742 3.724032 3.725 3.7243867 3.7198093 3.7109587 3.6980724 3.6813896 3.6611469 3.6375802 3.6109204 3.581395 3.5492244 3.5146236 3.4778006 3.438955 3.39828 3.355959 3.312168 3.2670743 3.2208374 3.1736069 3.1255255 3.076727 3.0273368 2.9774733 2.9272468 2.8767605 2.82611 2.7753842 2.7246659 2.6740313 2.6235507 2.5732887 2.5233045 2.4736521 2.4243813 2.3755362 2.3271577 2.2792823 2.2319424 2.1851673 2.1389828 2.0934114 2.0484731 2.0041852 1.960562 1.917616 1.8753575 1.8337945 1.7929333 1.7527789 1.7133341 1.6746006 1.6365788 1.599268 1.562666 1.5267701 1.4915763 1.4570801 1.423276 1.3901578 1.3577191 1.3259524 1.2948502 1.2644044 1.2346065 1.2054477 1.1769189 1.1490108 1.1217138 1.0950183 1.0689145 1.0433925 1.0184422 0.99405354 0.9702165 0.94692093 0.9241567 0.9019138 0.8801821 0.8589516 0.8382125 0.8179548 0.7981687 0.7788446 0.75997293 0.7415442 0.72354907 0.7059782 0.6888226 0.6720733 0.6557213 0.63975805 0.6241749 0.60896343 0.5941153 0.57962245 0.5654768 0.5516705 0.53819585 0.5250453 0.5122113 0.49968675 0.48746437 0.4755372 0.46389842 0.45254123 0.44145912 0.4306456 0.4200944 0.40979928 0.39975426 0.3899534 0.38039094 0.37106115 0.36195856 0.35307777 0.3444134 0.33596036 0.32771358 0.31966808 0.31181905 0.30416176 0.2966916 0.28940406 0.28229475 0.27535936 0.2685937 0.26199362 0.25555515 0.24927439 0.24314748 0.2371707 0.2313404 0.22565302 0.22010511 0.21469325 0.20941412 0.20426452 0.19924128 0.19434132 0.18956162 0.18489926 0.18035136 0.17591514 0.17158785 0.16736686 0.16324957 0.1592334 0.1553159 0.15149468 0.14776735 0.14413163 0.14058526 0.13712606 0.1337519 0.13046068 0.12725039 0.12411901 0.12106464 0.11808537 0.11517937 0.11234483 0.10958 0.106883176 0.10425268 0.10168689 0.09918421 0.09674309 0.09436203 0.09203954 0.08977419 0.08756457 0.08540932 0.083307095 0.08125659 0.07925654 0.07730571 0.07540288 0.07354687 0.07173654 0.06997075 0.06824841 0.066568464 0.064929865 0.06333158 0.061772637 0.06025206 0.058768902 0.057322253 0.055911202 0.054534882 0.05319244 0.051883034 0.05060586

</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="3.725" PeakHeight="222.483" Num="5" zHalfNm="205.903" Error="0.777">
-42.069 2.054 -1.367 0.558 0.091
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="11" 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="6503.917" A="-2.64886878E11" B="8.1755208E7" C="-6308.147" Error="0.00151"/>
<QuasiParabolic ID="2" StartDistance="6503.917" EndDistance="6527.833" A="0.0" B="649.6198" C="-0.059870187" Error="0.00887"/>
<QuasiParabolic ID="3" StartDistance="6527.833" EndDistance="6549.0" A="6.000119E10" B="-1.8500766E7" C="1426.1136" Error="0.00887"/>
<QuasiParabolic ID="4" StartDistance="6549.0" EndDistance="6552.0" A="2.18688507E12" B="-6.6803014E8" C="51016.08" Error="0.03"/>
<QuasiParabolic ID="5" StartDistance="6552.0" EndDistance="6553.0" A="5.6970283E13" B="-1.7390678E10" C="1327164.5" Error="0.0"/>
<QuasiParabolic ID="6" StartDistance="6553.0" EndDistance="6554.0" A="-3.7310456E13" B="1.13841531E10" C="-868382.0" Error="6.55E-10"/>
<QuasiParabolic ID="7" StartDistance="6554.0" EndDistance="6560.0" A="1.29622333E13" B="-3.95691725E9" C="301977.38" Error="0.0369"/>
<QuasiParabolic ID="8" StartDistance="6560.0" EndDistance="6579.0" A="3.06548803E13" B="-9.3510175E9" C="713113.06" Error="0.0364"/>
<QuasiParabolic ID="9" StartDistance="6579.0" EndDistance="6591.0" A="-5.0641553E13" B="1.5362901E10" C="-1165129.8" Error="0.0119"/>
<QuasiParabolic ID="10" StartDistance="6591.0" EndDistance="6592.483" A="-5.8291632E13" B="1.76842732E10" C="-1341231.4" Error="1.81E-7"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="71.75" Depth="0.154"/>
<TopsideChapman PeakHeight="222.483" PeakDensity="172154.16" PeakScaleHeight="12.537" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
