<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-01 -121 22:15:00.000"
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 22 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 70% PACIFIC flags: F2x cusp not found, One of F2 cusps was derived from the other</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.01 (121) 22:15:00</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">
FF202612105012215001291296E02000002520000000001107201000080205120000B05040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="4.050" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="4.066" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="16.467" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.300" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.300" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.300" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="222.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="222.500" 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="4.050" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="248.140" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.300" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.300" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="219.216" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="208.314" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="5.110" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="15.762" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.861" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="10.583" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="16.180" 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="31">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
222.500 225.000 225.000 225.000 225.625 226.250 226.875 227.500 228.125 228.750 229.375 230.000 230.000 230.769 231.538 232.308 233.077 233.846 234.615 235.385 236.154 236.923 237.692 238.462 239.231 240.000 242.500 242.500 244.185 246.054 248.140
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 0 0 0 0 0 0 0 0 0 0 42 0 0 0 0 0 0 0 0 0 0 0 0 0 0 60 0 0 0 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 -9.375 -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="296">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 136.25 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 162.5 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 188.75 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 219.216 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0
</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 0.35332385 0.3524629 0.35123456 0.3496469 0.3477836 0.34551057 0.34284618 0.3398121 0.3363646 0.33256927 0.32832938 0.32366115 0.31855893 0.31297255 0.3068771 0.30027556 0.29307804 0.2853064 0.27685073 0.26765716 0.25764734 0.24675402 0.23483722 0.22173925 0.20734549 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 0.20293333 0.2088 0.21466666 0.22053333 0.2264 0.23226666 0.23813333 0.244 0.24986666 0.25573334 0.2616 0.26746666 0.27333334 0.2792 0.28506666 0.29093334 0.2968 0.30266666 0.30853334 0.3144 0.32026666 0.32613334 0.332 0.33786666 0.34373334 0.3496 0.354 0.37255445 0.44165805 0.51104605 0.5854313 0.6673722 0.75876915 0.8609924 0.97473603 1.0998375 1.2352904 1.3794274 1.5303032 1.6860349 1.845037 2.0060287 2.1681154 2.330529 2.4926739 2.6540003 2.8139515 2.9718525 3.126823 3.2777464 3.4231567 3.561063 3.6889226 3.8035223 3.9009762 3.9770525 4.027578 4.0492864 4.05 4.047863 4.0391603 4.024153 4.003273 3.9769495 3.945607 3.9096618 3.86952 3.825574 3.7782018 3.7277658 3.6746109 3.619065 3.5614376 3.5020201 3.4410858 3.3788908 3.3156724 3.251652 3.187034 3.1220064 3.056743 2.991402 2.926128 2.8610532 2.7962968 2.7319665 2.6681588 2.6049607 2.542449 2.4806921 2.41975 2.359675 2.3005123 2.2423012 2.1850743 2.1288593 2.0736783 2.0195491 1.9664859 1.9144981 1.8635924 1.8137718 1.7650372 1.7173862 1.6708148 1.6253164 1.5808829 1.5375047 1.4951704 1.4538677 1.413583 1.374302 1.3360095 1.2986892 1.2623248 1.2268994 1.1923952 1.158795 1.1260804 1.0942335 1.0632361 1.03307 1.0037167 0.9751581 0.9473761 0.9203526 0.89406973 0.8685097 0.84365517 0.81948864 0.79599315 0.7731519 0.7509482 0.7293659 0.7083889 0.68800163 0.6681886 0.6489346 0.630225 0.6120452 0.59438103 0.57721865 0.56054443 0.5443452 0.5286079 0.5133199 0.4984689 0.48404285 0.47002995 0.45641875 0.44319808 0.43035704 0.41788504 0.40577164 0.39400688 0.38258088 0.37148407 0.3607072 0.35024118 0.3400772 0.33020666 0.32062125 0.31131282 0.3022735 0.2934956 0.28497162 0.27669436 0.26865667 0.26085177 0.25327292 0.24591365 0.23876765 0.2318288 0.22509111 0.2185488 0.21219626 0.20602801 0.20003873 0.19422324 0.18857655 0.18309377 0.17777017 0.17260113 0.16758221 0.16270904 0.15797743 0.15338326 0.14892255 0.14459145 0.1403862 0.13630313 0.13233873 0.12848955 0.12475224 0.12112357 0.11760037 0.11417959 0.11085826 0.107633494 0.104502484 0.10146251 0.09851093 0.095645174 0.092862755 0.09016125 0.0875383 0.08499164 0.08251904 0.08011835 0.07778749 0.07552442 0.07332717 0.07119383 0.069122545 0.06711151 0.06515896 0.06326322 0.061422624 0.05963557 0.057900496 0.0562159 0.05458031 0.0529923 0.051450487

</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="4.05" PeakHeight="219.216" Num="5" zHalfNm="208.314" Error="0.528">
-29.479 -1.849 1.229 -0.685 0.318
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="10" 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="6506.25" A="-2.20048884E11" B="6.791632E7" C="-5240.3315" Error="0.00141"/>
<QuasiParabolic ID="2" StartDistance="6506.25" EndDistance="6532.5" A="0.0" B="-1808.673" C="0.3180027" Error="0.0282"/>
<QuasiParabolic ID="3" StartDistance="6532.5" EndDistance="6558.0" A="9.1240964E10" B="-2.8016392E7" C="2150.6965" Error="0.0282"/>
<QuasiParabolic ID="4" StartDistance="6558.0" EndDistance="6559.0" A="2.49490099E13" B="-7.6089155E9" C="580139.4" Error="9.53E-10"/>
<QuasiParabolic ID="5" StartDistance="6559.0" EndDistance="6561.0" A="2.40064995E13" B="-7.3215212E9" C="558230.94" Error="0.0542"/>
<QuasiParabolic ID="6" StartDistance="6561.0" EndDistance="6566.0" A="2.13526648E13" B="-6.5125484E9" C="496580.84" Error="0.0559"/>
<QuasiParabolic ID="7" StartDistance="6566.0" EndDistance="6570.0" A="6.9383712E13" B="-2.11427799E10" C="1610670.9" Error="0.0148"/>
<QuasiParabolic ID="8" StartDistance="6570.0" EndDistance="6584.0" A="4.0660967E13" B="-1.23991736E10" C="945251.9" Error="0.031"/>
<QuasiParabolic ID="9" StartDistance="6584.0" EndDistance="6589.216" A="-1.9847475E14" B="6.0242297E10" C="-4571263.0" Error="0.00624"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="78.75" Depth="0.154"/>
<TopsideChapman PeakHeight="219.216" PeakDensity="203504.97" PeakScaleHeight="10.583" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
