<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-31 -304 00:20:00.000"
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 44 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 40% PACIFIC flags: F2x cusp not found, Multiple candidates for F2x cusp, Multiple candidates for F2o cusp, One of F2 cusps was derived from the other, Unidentified traces above foF2</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.10.31 (304) 00:20:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.32" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-16.06" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="62.486557" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202630410310020001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="5.450" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.778" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="20.591" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="4.925" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="4.925" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="5.700" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="257.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="257.500" 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="0.025" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="5.400" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="278.574" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="4.925" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="4.925" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="247.291" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="234.951" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="7.811" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="17.901" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.602" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="10.583" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="17.830" 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" >
4.925 4.95 4.975 5.0 5.025 5.05 5.075 5.1 5.125 5.15 5.175 5.2 5.225 5.25 5.275 5.3 5.325 5.35 5.375 5.4 5.425 5.45
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
257.500 257.500 257.500 257.500 257.500 258.750 260.000 261.250 262.500 263.750 265.000 266.250 267.500 268.750 270.000 271.250 272.500 274.320 276.334 278.574 281.082 283.907
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
99 0 96 99 60 0 0 0 0 0 0 0 0 0 0 0 96 0 0 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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="335">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 144.07533 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 178.15067 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 212.226 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 247.291 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0
</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 0.35362422 0.35306162 0.35235164 0.35142174 0.35027573 0.34899163 0.34742752 0.34566385 0.34363678 0.34142753 0.33897603 0.33636343 0.33340046 0.33024132 0.32683903 0.32321593 0.3192752 0.3150528 0.31058666 0.3057539 0.30066758 0.29521146 0.28940022 0.2831579 0.2766206 0.26954967 0.26204455 0.2540769 0.24549536 0.23629855 0.22647952 0.2158515 0.20442727 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 0.2 0.20383848 0.20835787 0.21287727 0.21739668 0.22191606 0.22643547 0.23095487 0.23547426 0.23999366 0.24451306 0.24903245 0.25355187 0.25807124 0.26259065 0.26711005 0.27162945 0.27614886 0.28066826 0.28518763 0.28970703 0.29422644 0.29874584 0.30326524 0.30778465 0.31230402 0.31682342 0.32134283 0.32586223 0.33038163 0.33490103 0.3394204 0.3439398 0.3484592 0.35297862 0.354 0.4027742 0.47017157 0.54387814 0.6250467 0.71470106 0.81370836 0.9227959 1.042511 1.1731834 1.3149587 1.4677135 1.6310798 1.8045267 1.9872565 2.1784217 2.3769798 2.5817509 2.7914777 3.004854 3.2203937 3.4365637 3.6517446 3.864124 4.0718684 4.2729445 4.4653006 4.646716 4.8149824 4.9677873 5.1029534 5.2183743 5.312133 5.382598 5.4284763 5.448903 5.45 5.4476447 5.4365926 5.417014 5.389489 5.354595 5.3129053 5.2649803 5.211367 5.152596 5.0891767 5.021599 4.9503284 4.8758082 4.798456 4.718667 4.63681 4.5532312 4.468252 4.3821726 4.2952685 4.207795 4.1199875 4.0320606 3.9442098 3.856614 3.7694354 3.6828196 3.596898 3.5117884 3.4275951 3.3444111 3.2623177 3.1813862 3.1016784 3.0232472 2.9461374 2.8703868 2.7960255 2.7230785 2.6515641 2.5814965 2.5128841 2.4457324 2.3800414 2.3158095 2.2530305 2.1916962 2.1317961 2.0733168 2.0162437 1.96056 1.9062477 1.8532876 1.801659 1.7513405 1.7023101 1.6545447 1.6080211 1.5627155 1.5186037 1.4756613 1.4338639 1.3931868 1.3536056 1.3150955 1.2776324 1.2411916 1.2057494 1.1712818 1.137765 1.1051761 1.0734918 1.0426894 1.0127469 0.9836421 0.9553535 0.9278599 0.90114063 0.8751753 0.8499439 0.8254269 0.8016052 0.77846014 0.7559734 0.73412704 0.7129036 0.6922862 0.67225796 0.65280277 0.63390476 0.61554843 0.5977188 0.58040106 0.56358093 0.5472445 0.5313782 0.5159687 0.5010032 0.48646912 0.47235423 0.45864668 0.4453349 0.43240762 0.4198539 0.40766308 0.3958248 0.384329 0.37316588 0.36232588 0.35179982 0.3415786 0.3316535 0.32201606 0.31265795 0.30357116 0.2947479 0.2861805 0.27786165 0.26978418 0.2619411 0.25432566 0.24693128 0.23975158 0.23278034 0.22601153 0.2194393 0.21305797 0.206862 0.20084605 0.19500487 0.18933341 0.18382676 0.17848013 0.1732889 0.16824853 0.1633547 0.1586031 0.15398963 0.1495103 0.14516118 0.1409385 0.13683861 0.13285793 0.128993 0.12524046 0.121597044 0.11805958 0.114625 0.1112903 0.10805258 0.10490904 0.10185692 0.098893575 0.09601642 0.09322296 0.09051075 0.08787744 0.08532072 0.08283837 0.08042824 0.07808822 0.075816266 0.0736104 0.07146872 0.069389336 0.067370445 0.065410286 0.063507155 0.06165939 0.059865378 0.058123562 0.056432422 0.054790482 0.05319631 0.05164852 0.050145764

</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="5.45" PeakHeight="247.291" Num="5" zHalfNm="234.951" Error="0.221">
-34.866 -0.442 0.288 -0.13 0.085
</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="6514.075" A="-1.30875802E11" B="4.0393764E7" C="-3116.6775" Error="0.00167"/>
<QuasiParabolic ID="2" StartDistance="6514.075" EndDistance="6548.151" A="0.0" B="-2611.9329" C="0.44099802" Error="0.0529"/>
<QuasiParabolic ID="3" StartDistance="6548.151" EndDistance="6577.0" A="7.4193871E10" B="-2.2711388E7" C="1738.0718" Error="0.0529"/>
<QuasiParabolic ID="4" StartDistance="6577.0" EndDistance="6578.0" A="-2.92623771E12" B="8.8968986E8" C="-67624.95" Error="0.0"/>
<QuasiParabolic ID="5" StartDistance="6578.0" EndDistance="6583.0" A="3.71298717E12" B="-1.12892518E9" C="85811.88" Error="0.156"/>
<QuasiParabolic ID="6" StartDistance="6583.0" EndDistance="6584.0" A="6.6397552E13" B="-2.01733018E10" C="1532293.5" Error="1.44E-9"/>
<QuasiParabolic ID="7" StartDistance="6584.0" EndDistance="6587.0" A="-3.57575852E11" B="1.04683848E8" C="-7650.758" Error="0.0422"/>
<QuasiParabolic ID="8" StartDistance="6587.0" EndDistance="6608.0" A="7.5441654E13" B="-2.29101117E10" C="1739335.4" Error="0.155"/>
<QuasiParabolic ID="9" StartDistance="6608.0" EndDistance="6613.0" A="-1.13304316E14" B="3.42163907E10" C="-2583190.5" Error="0.00177"/>
<QuasiParabolic ID="10" StartDistance="6613.0" EndDistance="6617.291" A="-2.58792684E14" B="7.821711E10" C="-5910025.5" Error="7.33E-4"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="102.226" Depth="0.154"/>
<TopsideChapman PeakHeight="247.291" PeakDensity="368517.38" PeakScaleHeight="10.583" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
