<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-06 -096 07:50:00.000"
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 11 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.49 Confidence: 95% PACIFIC flags: Multiple candidates for F2x cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.06 (096) 07:50:00</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">
FF202609604060750001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.175" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="4.002" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.705" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.200" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.200" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.625" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="197.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="197.500" 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="0.175" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.000" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="230.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.200" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.200" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="210.514" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="191.832" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.723" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="26.655" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.766" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.639" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="22.280" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="4.120" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="40">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.2 2.225 2.25 2.275 2.3 2.325 2.35 2.375 2.4 2.425 2.45 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
197.500 197.500 198.125 198.750 199.375 200.000 200.625 201.250 201.875 202.500 202.500 202.500 202.500 203.571 204.643 205.714 206.786 207.857 208.929 210.000 210.000 210.000 212.500 212.500 212.500 215.000 217.000 219.000 221.000 223.000 225.000 227.500 230.000 235.000 240.000 242.500 250.000 256.250 262.500 277.500
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
78 51 0 0 0 48 0 0 0 60 0 0 60 0 0 0 0 0 0 57 63 66 69 66 66 36 0 0 0 0 63 66 66 78 75 84 84 0 87 84
</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 -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 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="340">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 130.41667 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 150.83333 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 171.25 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 210.514 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0
</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 0.35375172 0.35311857 0.35194156 0.35034353 0.348288 0.34577343 0.34275505 0.3392274 0.3352465 0.33069065 0.32556674 0.31982708 0.31355324 0.30657426 0.2989218 0.29046544 0.28123897 0.27106133 0.2598764 0.24752563 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.241 0.24192245 0.24745715 0.25299183 0.25852653 0.2640612 0.26959592 0.2751306 0.2806653 0.2862 0.2917347 0.29726937 0.30280408 0.30833876 0.31387347 0.31940815 0.32494286 0.33047757 0.33601224 0.34154695 0.34708163 0.35261634 0.354 0.37737346 0.41680688 0.46728984 0.527746 0.59441614 0.6640143 0.7352028 0.80798423 0.8829106 0.96078134 1.042578 1.1293898 1.2224997 1.3232739 1.4332427 1.5537965 1.685648 1.8279109 1.9769342 2.126144 2.2681658 2.3977928 2.5128984 2.6136847 2.7015274 2.7779782 2.8445563 2.9025817 2.9531114 2.9970179 3.0350063 3.0676465 3.0953891 3.1185887 3.1375394 3.1524627 3.1635265 3.1708536 3.1745229 3.175 3.1746607 3.171873 3.166378 3.1583025 3.147774 3.1349204 3.119868 3.1027434 3.0836701 3.0627701 3.0401628 3.0159647 2.99029 2.963248 2.934946 2.9054873 2.874971 2.8434925 2.8111439 2.778013 2.7441838 2.709736 2.6747465 2.6392875 2.603428 2.5672324 2.5307631 2.494078 2.4572318 2.420276 2.3832588 2.346226 2.3092198 2.2722797 2.2354426 2.1987429 2.1622126 2.125881 2.0897753 2.0539207 2.0183406 1.9830557 1.9480855 1.9134477 1.8791583 1.8452314 1.8116803 1.7785164 1.7457501 1.7133904 1.681445 1.6499212 1.6188245 1.5881598 1.5579313 1.5281422 1.4987948 1.4698908 1.4414313 1.4134167 1.3858471 1.3587215 1.3320389 1.3057977 1.2799959 1.2546309 1.2297002 1.2052007 1.1811289 1.1574811 1.1342536 1.1114422 1.0890428 1.0670506 1.0454613 1.0242698 1.0034716 0.98306143 0.9630343 0.94338495 0.92410827 0.90519893 0.88665164 0.8684609 0.85062146 0.83312786 0.81597465 0.7991565 0.782668 0.76650363 0.75065815 0.73512614 0.71990234 0.7049814 0.6903581 0.6760272 0.66198355 0.648222 0.6347376 0.6215252 0.60857993 0.59589684 0.58347106 0.5712978 0.5593724 0.5476902 0.53624654 0.52503693 0.51405686 0.503302 0.49276787 0.48245034 0.4723451 0.46244812 0.45275524 0.4432625 0.4339659 0.4248616 0.4159458 0.40721476 0.39866474 0.3902922 0.38209352 0.37406525 0.36620396 0.35850626 0.35096887 0.34358853 0.33636206 0.32928634 0.32235828 0.3155749 0.30893326 0.3024304 0.29606354 0.28982985 0.28372663 0.2777512 0.2719009 0.26617315 0.26056546 0.25507534 0.24970037 0.24443813 0.23928632 0.23424263 0.22930485 0.22447075 0.2197382 0.21510507 0.2105693 0.2061289 0.20178182 0.19752616 0.19336 0.18928148 0.18528876 0.18138006 0.17755362 0.17380773 0.17014068 0.16655084 0.1630366 0.15959637 0.15622859 0.15293176 0.14970438 0.14654501 0.1434522 0.14042458 0.13746075 0.13455941 0.13171922 0.12893891 0.12621722 0.123552896 0.12094476 0.118391626 0.115892336 0.11344575 0.11105078 0.10870631 0.1064113 0.104164705 0.1019655 0.099812694 0.097705305 0.09564239 0.09362299 0.0916462 0.08971114 0.0878169 0.08596264 0.084147505 0.08237068 0.08063136 0.078928754 0.077262074 0.07563058 0.07403352 0.07247017 0.070939824 0.06944178 0.067975365 0.0665399 0.06513474 0.063759245 0.06241279 0.06109476 0.05980456 0.058541592 0.057305295 0.0560951 0.054910455 0.053750824 0.052615676 0.051504496 0.05041678

</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="3.175" PeakHeight="210.514" Num="5" zHalfNm="191.832" Error="1.197">
-44.391 8.746 -5.329 2.679 -0.969
</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="6500.417" A="-2.85866426E11" B="8.8230384E7" C="-6807.7744" Error="0.00128"/>
<QuasiParabolic ID="2" StartDistance="6500.417" EndDistance="6520.833" A="0.0" B="116.90536" C="0.04017112" Error="0.00128"/>
<QuasiParabolic ID="3" StartDistance="6520.833" EndDistance="6539.0" A="5.7403052E10" B="-1.7719026E7" C="1367.3684" Error="3.26E-4"/>
<QuasiParabolic ID="4" StartDistance="6539.0" EndDistance="6540.0" A="-2.64671357E12" B="8.0935437E8" C="-61874.215" Error="6.24E-11"/>
<QuasiParabolic ID="5" StartDistance="6540.0" EndDistance="6544.0" A="1.11961231E13" B="-3.42392909E9" C="261771.31" Error="0.0199"/>
<QuasiParabolic ID="6" StartDistance="6544.0" EndDistance="6552.0" A="1.34938163E13" B="-4.12615782E9" C="315425.72" Error="0.0117"/>
<QuasiParabolic ID="7" StartDistance="6552.0" EndDistance="6554.0" A="3.07081752E13" B="-9.3808456E9" C="716424.5" Error="0.00333"/>
<QuasiParabolic ID="8" StartDistance="6554.0" EndDistance="6562.0" A="5.0853713E13" B="-1.55284009E10" C="1185417.1" Error="0.0116"/>
<QuasiParabolic ID="9" StartDistance="6562.0" EndDistance="6569.0" A="-5.1530166E13" B="1.56766812E10" C="-1192294.1" Error="0.00792"/>
<QuasiParabolic ID="10" StartDistance="6569.0" EndDistance="6580.514" A="-2.29198833E13" B="6.9659858E9" C="-529278.8" Error="0.0035"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="61.25" Depth="0.113"/>
<TopsideChapman PeakHeight="210.514" PeakDensity="125069.79" PeakScaleHeight="14.639" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
