<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-09 -129 02:45:00.000"
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: 50% PACIFIC flags: F2o cusp not found, One of F2 cusps was derived from the other, F2O model cusp does not fit trace</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.09 (129) 02:45:00</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">
FF202612905090245001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="2.900" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.691" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="10.705" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.650" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.650" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.250" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="257.897" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="257.897" 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="2.750" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="267.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.650" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.650" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="251.018" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="235.443" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.887" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="22.266" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.540" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="11.856" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="21.960" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.280" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="11">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.65 2.675 2.7 2.725 2.75 2.775 2.8 2.825 2.85 2.875 2.9
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
257.897 259.716 261.868 265.000 267.500 272.500 277.500 282.500 292.500 307.500 332.467
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 0 0 0 0 0 0 0 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375 -10.9375
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="336">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 144.50934 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 179.01866 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 213.528 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 251.018 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0
</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 0.35313663 0.3524263 0.35149595 0.35042334 0.34906456 0.34757245 0.3458791 0.3439203 0.34177694 0.3393886 0.33676827 0.33393005 0.33088917 0.32759777 0.3240153 0.3201701 0.31609207 0.31175563 0.30709004 0.30209634 0.2967622 0.29113978 0.28522104 0.27877122 0.27204028 0.26475886 0.25701183 0.24879967 0.23998332 0.2304951 0.22033998 0.2094152 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 0.2 0.20437926 0.20884182 0.21330439 0.21776694 0.22222951 0.22669207 0.23115462 0.23561719 0.24007975 0.2445423 0.24900487 0.25346744 0.25792998 0.26239255 0.26685512 0.27131766 0.27578023 0.2802428 0.28470534 0.2891679 0.29363048 0.29809305 0.3025556 0.30701816 0.31148073 0.31594327 0.32040584 0.3248684 0.32933095 0.33379352 0.3382561 0.34271866 0.3471812 0.35164377 0.354 0.37192875 0.4139276 0.4610517 0.51269734 0.5682855 0.6273736 0.6897151 0.7552115 0.82388884 0.8958317 0.97116846 1.0500011 1.1324713 1.2186147 1.3083847 1.4016677 1.4981713 1.5974004 1.6987486 1.8013213 1.9041381 2.0060704 2.1059718 2.202669 2.2951448 2.38251 2.464047 2.5392025 2.6076007 2.6689754 2.723171 2.7701252 2.8098152 2.842242 2.8674476 2.8854563 2.8963 2.8999927 2.9 2.8980908 2.892364 2.883037 2.8703291 2.8544593 2.835645 2.8141 2.7900338 2.7636507 2.7351482 2.704718 2.6725435 2.638801 2.603659 2.5672767 2.5298064 2.4913914 2.452167 2.4122608 2.3717916 2.3308713 2.2896042 2.2480867 2.2064087 2.1646535 2.122898 2.0812125 2.0396616 1.9983052 1.9571967 1.9163857 1.8759162 1.8358288 1.7961591 1.7569395 1.7181985 1.6799614 1.6422504 1.6050845 1.5684806 1.5324526 1.4970123 1.4621693 1.4279314 1.3943045 1.3612928 1.3288991 1.2971249 1.2659701 1.2354337 1.2055137 1.1762072 1.14751 1.1194178 1.0919251 1.0650262 1.0387143 1.0129826 0.98782384 0.96323013 0.9391935 0.91570556 0.8927577 0.87034124 0.84844714 0.8270665 0.80619 0.7858085 0.7659127 0.74649334 0.727541 0.70904654 0.69100064 0.673394 0.6562175 0.6394621 0.62311876 0.6071785 0.59163254 0.57647216 0.5616888 0.5472738 0.533219 0.519516 0.50615674 0.49313328 0.48043773 0.46806234 0.45599964 0.44424212 0.43278253 0.4216137 0.41072863 0.40012047 0.38978246 0.37970802 0.36989072 0.36032423 0.35100237 0.34191906 0.3330685 0.32444477 0.31604233 0.3078556 0.29987922 0.29210788 0.28453648 0.27715993 0.26997337 0.262972 0.25615108 0.2495061 0.24303259 0.23672618 0.23058261 0.22459777 0.21876758 0.21308812 0.20755553 0.20216607 0.19691604 0.19180192 0.18682018 0.18196747 0.17724043 0.17263587 0.16815062 0.16378161 0.15952587 0.15538047 0.15134257 0.1474094 0.14357825 0.1398465 0.13621159 0.132671 0.1292223 0.12586312 0.122591145 0.11940412 0.11629985 0.11327619 0.11033106 0.10746242 0.10466829 0.10194674 0.0992959 0.09671392 0.09419903 0.09174949 0.0893636 0.08703971 0.084776215 0.082571544 0.080424175 0.07833262 0.07629543 0.0743112 0.07237854 0.07049613 0.06866265 0.06687684 0.06513746 0.0634433 0.06179319 0.060185984 0.05862057 0.05709585 0.055610787 0.05416434 0.0527555 0.051383298 0.050046783

</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="2.9" PeakHeight="251.018" Num="5" zHalfNm="235.443" Error="0.871">
-38.223 1.355 -0.984 0.57 -0.208
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="7" 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="6514.509" A="-1.27616909E11" B="3.9387936E7" C="-3039.0674" Error="0.00168"/>
<QuasiParabolic ID="2" StartDistance="6514.509" EndDistance="6549.019" A="0.0" B="-2581.8215" C="0.43635225" Error="0.053"/>
<QuasiParabolic ID="3" StartDistance="6549.019" EndDistance="6583.0" A="7.7563699E10" B="-2.373696E7" C="1816.1005" Error="0.053"/>
<QuasiParabolic ID="4" StartDistance="6583.0" EndDistance="6592.0" A="1.17555541E13" B="-3.57166054E9" C="271292.28" Error="0.0695"/>
<QuasiParabolic ID="5" StartDistance="6592.0" EndDistance="6609.0" A="1.95657969E13" B="-5.9412731E9" C="451026.28" Error="0.0268"/>
<QuasiParabolic ID="6" StartDistance="6609.0" EndDistance="6621.018" A="-3.6989005E13" B="1.1173207E10" C="-843759.7" Error="0.00994"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="103.528" Depth="0.154"/>
<TopsideChapman PeakHeight="251.018" PeakDensity="104342.43" PeakScaleHeight="11.856" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
