<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-07 -097 06:10:00.000"
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 22 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 85% PACIFIC flags: Multiple candidates for F2x cusp, One of F2 cusps was derived from the other</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.07 (097) 06:10:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.97" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202609704070610001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="23" >
<URSI ID="00" Val="5.050" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.915" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="19.770" 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="5.300" 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="88" Val="5.025" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="263.723" 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="231.863" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="218.751" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.285" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="19.343" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.429" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="10.583" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="21.060" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.510" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="104">
<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 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 4.35 4.375 4.4 4.425 4.45 4.475 4.5 4.525 4.55 4.575 4.6 4.625 4.65 4.675 4.7 4.725 4.75 4.775 4.8 4.825 4.85 4.875 4.9 4.925 4.95 4.975 5.0 5.025 5.05
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
222.500 222.500 222.500 222.500 222.857 223.214 223.571 223.929 224.286 224.643 225.000 225.000 225.000 225.000 225.250 225.500 225.750 226.000 226.250 226.500 226.750 227.000 227.250 227.500 228.000 228.500 229.000 229.500 230.000 230.000 230.000 230.000 230.000 230.000 230.000 231.250 232.500 232.500 232.500 232.500 232.500 232.500 232.500 232.500 232.500 232.885 233.269 233.654 234.038 234.423 234.808 235.192 235.577 235.962 236.346 236.731 237.115 237.500 237.857 238.214 238.571 238.929 239.286 239.643 240.000 240.357 240.714 241.071 241.429 241.786 242.143 242.500 242.500 243.333 244.167 245.000 245.250 245.500 245.750 246.000 246.250 246.500 246.750 247.000 247.250 247.500 248.158 248.816 249.474 250.132 250.789 251.447 252.105 252.763 253.421 254.079 255.041 256.106 257.289 258.612 260.101 261.791 263.723 265.955
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 66 0 66 0 0 0 0 0 0 45 45 0 42 0 0 0 0 0 0 0 0 0 54 0 0 0 0 90 90 0 0 105 0 114 0 102 0 0 0 0 0 0 0 93 0 0 0 0 0 0 0 0 0 0 0 0 54 0 0 0 0 0 0 0 0 0 0 0 0 0 57 57 0 0 51 0 0 0 0 0 0 0 0 0 54 0 0 0 0 0 0 0 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" >
-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 -4.6875 -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 -7.8125 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 -1.5625 -1.5625 1.5625 -10.9375 -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 4.6875 -1.5625 1.5625 4.6875
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="317">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 136.25 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 162.5 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 188.75 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 231.863 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0
</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 0.36746225 0.4218713 0.47899377 0.5403197 0.60678375 0.67901415 0.75733185 0.84176254 0.93206155 1.0277903 1.1283517 1.2331009 1.3414005 1.4527247 1.5665941 1.6826261 1.8005737 1.9201909 2.0413985 2.1640408 2.2880907 2.4135306 2.5403535 2.6685624 2.7981431 2.92916 3.0616157 3.1954772 3.3307688 3.4673922 3.6053054 3.7443166 3.8841772 4.024497 4.1647024 4.303895 4.440761 4.573437 4.6991515 4.814017 4.9128666 4.989284 5.0365996 5.05 5.0499177 5.044436 5.030748 5.009389 4.9808965 4.945804 4.9046383 4.8579135 4.8061304 4.749773 4.689305 4.6251707 4.557793 4.487573 4.4148884 4.3400946 4.2635245 4.1854897 4.1062784 4.0261593 3.9453802 3.864169 3.782735 3.70127 3.619949 3.5389304 3.4583576 3.3783603 3.2990541 3.2205434 3.1429198 3.0662649 2.99065 2.9161372 2.84278 2.7706249 2.6997097 2.6300664 2.5617213 2.4946945 2.4290013 2.3646526 2.301655 2.2400112 2.1797206 2.12078 2.0631826 2.00692 1.9519814 1.8983537 1.8460224 1.7949716 1.7451841 1.6966413 1.649324 1.603212 1.5582845 1.51452 1.4718968 1.4303925 1.3899848 1.350651 1.3123685 1.2751142 1.2388656 1.2035999 1.1692946 1.1359272 1.1034753 1.0719173 1.041231 1.0113953 0.98238873 0.9541907 0.9267804 0.90013784 0.87424314 0.84907687 0.82461995 0.8008536 0.77775955 0.7553199 0.73351705 0.7123338 0.69175345 0.6717595 0.652336 0.6334673 0.6151381 0.5973336 0.58003914 0.56324065 0.54692423 0.5310765 0.51568425 0.5007348 0.48621562 0.47211465 0.45842004 0.44512028 0.43220425 0.419661 0.40747997 0.39565083 0.38416362 0.3730085 0.36217603 0.351657 0.3414424 0.33152354 0.32189193 0.31253934 0.3034577 0.29463932 0.28607655 0.27776206 0.26968867 0.2618495 0.25423774 0.24684684 0.23967043 0.23270233 0.2259365 0.21936712 0.21298848 0.20679508 0.20078157 0.19494271 0.18927349 0.18376896 0.17842437 0.17323507 0.16819659 0.16330451 0.15855463 0.1539428 0.14946502 0.14511742 0.14089619 0.1367977 0.13281834 0.1289547 0.1252034 0.12156117 0.11802485 0.11459137 0.11125773 0.10802104 0.104878485 0.10182732 0.0988649 0.09598864 0.09319603 0.09048465 0.087852135 0.08529619 0.0828146 0.08040519 0.078065865 0.07579459 0.073589385 0.07144833 0.06936956 0.06735127 0.06539168 0.06348911 0.06164188 0.059848394 0.058107086 0.056416433 0.05477497 0.05318126 0.051633917 0.050131593

</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="5.05" PeakHeight="231.863" Num="5" zHalfNm="218.751" Error="0.508">
-39.853 -6.225 4.272 -1.729 0.422
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="9" 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="-2694.343" C="0.45412877" Error="0.0419"/>
<QuasiParabolic ID="3" StartDistance="6532.5" EndDistance="6534.0" A="1.05150541E13" B="-3.21879808E9" C="246329.27" Error="0.0"/>
<QuasiParabolic ID="4" StartDistance="6534.0" EndDistance="6553.0" A="-1.88622356E11" B="5.750338E7" C="-4382.51" Error="0.155"/>
<QuasiParabolic ID="5" StartDistance="6553.0" EndDistance="6559.0" A="1.65714185E12" B="-5.0583072E8" C="38600.406" Error="0.0862"/>
<QuasiParabolic ID="6" StartDistance="6559.0" EndDistance="6564.0" A="1.64103706E13" B="-5.0044524E9" C="381535.4" Error="0.11"/>
<QuasiParabolic ID="7" StartDistance="6564.0" EndDistance="6598.0" A="3.13107688E13" B="-9.5444879E9" C="727363.9" Error="0.1"/>
<QuasiParabolic ID="8" StartDistance="6598.0" EndDistance="6601.863" A="-3.01633943E14" B="9.1378434E10" C="-6920629.5" Error="0.00263"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="78.75" Depth="0.154"/>
<TopsideChapman PeakHeight="231.863" PeakDensity="316408.2" PeakScaleHeight="10.583" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
