<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-11 -131 21:00:00.000"
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="20.0">
<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 44 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 40% PACIFIC flags: Multiple candidates for F2x cusp, Multiple candidates for F2o cusp, F2 cusps do not match, Unidentified traces above foF2</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.11 (131) 21:00:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.21" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.99" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="75.82641" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202613105112100001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.325" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="4.088" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="17.682" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.925" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.925" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="5.300" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="207.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="207.500" 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="4.275" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="240.226" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.944" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.925" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.925" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="209.635" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="193.767" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="6.788" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="21.969" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.258" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="11.733" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="23.530" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.830" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="57">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 3.875 3.9 3.925 3.95 3.975 4.0 4.025 4.05 4.075 4.1 4.125 4.15 4.175 4.2 4.225 4.25 4.275 4.3 4.325
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
207.500 207.500 207.500 210.000 210.000 210.000 210.000 210.000 212.500 212.500 212.500 212.500 212.500 212.500 212.500 212.500 212.500 212.500 212.500 212.500 212.500 217.500 217.500 217.500 217.500 218.750 220.000 220.000 222.500 222.500 222.500 222.500 222.500 223.750 225.000 225.000 225.000 225.000 227.500 228.750 230.000 230.000 230.833 231.667 232.500 232.500 232.703 232.949 233.253 233.638 234.142 234.830 235.825 237.393 240.226 246.896 281.518
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
45 45 48 48 45 48 72 75 0 72 72 75 72 75 75 78 90 93 84 93 78 78 66 66 66 63 54 57 54 57 60 60 54 0 42 42 51 63 78 69 81 87 66 66 87 84 87 87 75 78 81 81 66 69 72 57 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 3.125 3.125 3.125 3.125 -3.125 3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 3.125 -3.125 -3.125 -3.125 -3.125 3.125 -3.125 -3.125 -3.125 -3.125 3.125 -3.125 -3.125 -3.125 3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125 -3.125
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="310">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
90.335 91.0 92.0 93.0 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 131.88367 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 153.76733 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 175.651 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 209.635 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.2782644 0.408169 0.5002486 0.5706952 0.62838614 0.67735887 0.71974576 0.7568249 0.7894297 0.81811446 0.84329313 0.8652613 0.8842467 0.9004214 0.91392 0.924842 0.93326336 0.93924046 0.94281185 0.944 0.9433573 0.9416038 0.9385825 0.93432176 0.9288636 0.92209876 0.9141043 0.90481454 0.8941949 0.8821721 0.86868775 0.853712 0.83719474 0.81904113 0.79909146 0.7772294 0.7532562 0.72708154 0.69824225 0.66640747 0.63110167 0.593 0.593 0.593 0.593 0.593 0.593 0.593 0.593 0.593 0.593 0.593 0.593 0.593 0.593 0.593 0.593 0.593 0.593 0.593 0.593 0.593 0.593 0.593 0.593 0.59673184 0.6127712 0.6288105 0.6448499 0.66088927 0.67692864 0.692968 0.7090073 0.7250467 0.74108607 0.75712544 0.7731648 0.7892041 0.8052435 0.82128286 0.83732224 0.8533616 0.8694009 0.8854403 0.90147966 0.91751903 0.9335584 0.944 0.97617924 1.0680552 1.1618334 1.2592827 1.3613782 1.4686204 1.5810258 1.6982611 1.819686 1.9444624 2.071633 2.2002969 2.329557 2.4587631 2.5872777 2.7146318 2.840491 2.964487 3.0863883 3.205929 3.322795 3.436693 3.5472164 3.6539574 3.7563095 3.853602 3.9449813 4.0294905 4.105965 4.1731167 4.229591 4.274011 4.305129 4.3219824 4.325 4.324594 4.319423 4.3085694 4.292369 4.27116 4.245279 4.215057 4.1808214 4.1428905 4.1015744 4.057173 4.009974 3.9602556 3.908282 3.854306 3.7985663 3.7412903 3.6826916 3.622971 3.5623183 3.5009093 3.4389093 3.3764715 3.3137386 3.2508419 3.1879032 3.1250346 3.0623386 2.9999094 2.9378326 2.8761861 2.8150408 2.7544599 2.6945004 2.6352139 2.5766456 2.5188355 2.461819 2.4056265 2.3502846 2.2958157 2.2422383 2.1895683 2.1378176 2.0869963 2.037111 1.9881663 1.9401646 1.8931063 1.8469901 1.801813 1.7575703 1.7142563 1.6718638 1.6303849 1.5898105 1.5501306 1.5113345 1.473411 1.436348 1.4001333 1.3647537 1.3301965 1.2964479 1.2634943 1.2313215 1.1999156 1.1692624 1.1393476 1.1101568 1.0816758 1.0538902 1.0267859 1.0003484 0.974564 0.94941854 0.92489815 0.9009892 0.87767804 0.8549514 0.8327959 0.8111987 0.7901469 0.76962787 0.7496291 0.7301384 0.7111438 0.69263345 0.67459583 0.6570195 0.63989335 0.62320644 0.606948 0.59110767 0.5756751 0.56064016 0.5459931 0.5317242 0.5178242 0.50428367 0.49109378 0.47824562 0.4657306 0.45354033 0.44166657 0.43010134 0.41883677 0.40786523 0.39717925 0.3867715 0.37663493 0.36676255 0.3571476 0.34778348 0.33866373 0.32978207 0.32113236 0.31270862 0.304505 0.29651582 0.28873557 0.28115878 0.27378023 0.26659474 0.25959733 0.25278312 0.24614732 0.23968531 0.23339258 0.22726472 0.22129741 0.21548651 0.20982791 0.20431766 0.19895187 0.1937268 0.18863873 0.18368414 0.1788595 0.17416143 0.16958661 0.16513185 0.16079397 0.15656994 0.15245676 0.14845154 0.14455146 0.14075376 0.13705575 0.13345483 0.12994845 0.12653415 0.1232095 0.11997215 0.11681981 0.11375026 0.11076132 0.107850894 0.1050169 0.10225735 0.099570274 0.09695379 0.09440603 0.091925204 0.08950955 0.08715735 0.08486695 0.082636714 0.08046508 0.0783505 0.07629147 0.07428654 0.0723343 0.07043334 0.06858234 0.06677997 0.06502496 0.06331606 0.061652068 0.0600318 0.05845411 0.056917876 0.05542201 0.053965457 0.052547175 0.051166166

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.944" PeakHeight="110.0" Num="3" Error="0.0">
-26.245 7.729 -1.149
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.944" EndFrequency="4.325" PeakHeight="209.635" Num="5" zHalfNm="193.767" Error="0.523">
-33.074 -1.646 1.088 -0.524 0.172
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="8" EarthRadius="6370.0">
<QuasiParabolic ID="0" StartDistance="6460.091" EndDistance="6480.001" A="-3.94043667E12" B="1.21618419E9" C="-93840.48" Error="0.0335"/>
<QuasiParabolic ID="1" StartDistance="6480.0" EndDistance="6501.884" A="-1.99903255E12" B="6.1698534E8" C="-47606.004" Error="0.00109"/>
<QuasiParabolic ID="2" StartDistance="6501.884" EndDistance="6523.767" A="0.0" B="-7482.9746" C="1.5027114" Error="0.0115"/>
<QuasiParabolic ID="3" StartDistance="6523.767" EndDistance="6544.0" A="5.6486848E11" B="-1.73909696E8" C="13385.788" Error="0.0148"/>
<QuasiParabolic ID="4" StartDistance="6544.0" EndDistance="6552.0" A="4.0822725E13" B="-1.24776561E10" C="953464.2" Error="0.0321"/>
<QuasiParabolic ID="5" StartDistance="6552.0" EndDistance="6556.0" A="3.5847815E13" B="-1.0959062E10" C="837576.4" Error="0.00992"/>
<QuasiParabolic ID="6" StartDistance="6556.0" EndDistance="6572.0" A="1.82416111E13" B="-5.5880428E9" C="427950.16" Error="0.0303"/>
<QuasiParabolic ID="7" StartDistance="6572.0" EndDistance="6579.635" A="-1.04013463E14" B="3.16167885E10" C="-2402606.0" Error="0.00643"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="65.651" Depth="0.351"/>
<TopsideChapman PeakHeight="209.635" PeakDensity="232079.72" PeakScaleHeight="11.733" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
