<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-29 -119 08:05:00.000"
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" >
2026.04.29 (119) 08:05:00</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="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202611904290805001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.225" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.794" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="12.235" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.950" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.950" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.500" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="240.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="240.000" 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="0.075" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="2.975" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="242.500" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.950" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.950" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="241.154" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="224.511" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.713" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="23.829" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.706" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="12.762" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="22.850" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.570" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="12">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.95 2.975 3.0 3.025 3.05 3.075 3.1 3.125 3.15 3.175 3.2 3.225
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
240.000 242.500 247.500 250.847 254.773 259.441 265.085 272.046 280.847 292.327 307.929 330.360
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 84 78 81 78 96 93 78 78 0 0 72
</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
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.32" Type="vertical" >
<Tabulated Num="342">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 140.33333 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 170.66667 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 241.154 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0
</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 0.35347393 0.35283697 0.35190412 0.35075444 0.34931904 0.34760568 0.34569573 0.3434548 0.34089813 0.338043 0.33497614 0.33158195 0.3278234 0.3237977 0.31935477 0.31466332 0.30954042 0.30405807 0.29813874 0.29176548 0.28499955 0.27773643 0.26987928 0.2613832 0.2523016 0.2425206 0.23193197 0.22042523 0.20793872 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 0.20169231 0.20676923 0.21184616 0.21692307 0.222 0.22707692 0.23215385 0.23723076 0.2423077 0.24738462 0.25246155 0.25753847 0.26261538 0.2676923 0.27276924 0.27784616 0.28292307 0.288 0.29307693 0.29815385 0.30323076 0.30830768 0.31338462 0.31846154 0.32353845 0.3286154 0.3336923 0.33876923 0.34384614 0.3489231 0.354 0.3901854 0.43292215 0.48182058 0.5359111 0.5941153 0.6556161 0.7199918 0.787093 0.8569723 0.9298259 1.0059278 1.0855843 1.1691226 1.2568337 1.3489712 1.4457413 1.5471711 1.6530595 1.763011 1.876225 1.991559 2.1075706 2.2226112 2.3349853 2.4431 2.5456336 2.6416256 2.7303834 2.8115766 2.8850436 2.9508293 3.0090554 3.0599046 3.103587 3.140291 3.1702213 3.1935318 3.2103605 3.220806 3.2249253 3.225 3.2236352 3.218611 3.2100751 3.198223 3.1832507 3.1653526 3.1447208 3.1215446 3.0960097 3.0682964 3.03858 3.00703 2.9738102 2.9390779 2.902983 2.8656695 2.8272748 2.7879286 2.747754 2.7068684 2.6653812 2.623396 2.5810096 2.5383136 2.4953928 2.4523263 2.409188 2.3660464 2.3229647 2.2800014 2.2372105 2.1946416 2.1523397 2.1103466 2.0686996 2.0274334 1.9865783 1.9461625 1.9062104 1.8667445 1.8277842 1.7893466 1.7514467 1.7140974 1.6773095 1.6410922 1.605453 1.5703979 1.5359311 1.5020562 1.468775 1.4360884 1.4039963 1.3724977 1.3415904 1.311272 1.281539 1.2523874 1.2238125 1.1958092 1.1683719 1.1414946 1.115171 1.0893941 1.0641571 1.0394527 1.0152733 0.9916113 0.96845895 0.94580823 0.92365104 0.9019792 0.8807846 0.86005884 0.83979374 0.819981 0.8006122 0.7816792 0.76317376 0.74508756 0.7274125 0.71014047 0.6932635 0.67677355 0.6606628 0.6449234 0.6295477 0.6145281 0.5998571 0.5855273 0.5715314 0.5578622 0.5445127 0.53147584 0.5187449 0.506313 0.49417365 0.4823203 0.4707466 0.45944628 0.44841316 0.43764123 0.42712456 0.41685736 0.40683398 0.39704877 0.38749632 0.3781713 0.36906838 0.36018252 0.35150865 0.34304184 0.33477733 0.3267103 0.31883627 0.31115064 0.30364904 0.2963271 0.2891807 0.28220558 0.2753978 0.26875338 0.26226842 0.25593925 0.24976209 0.24373338 0.23784958 0.23210727 0.22650307 0.22103369 0.21569595 0.2104867 0.20540285 0.20044143 0.19559953 0.19087428 0.18626289 0.18176264 0.17737088 0.17308499 0.16890246 0.16482078 0.16083756 0.15695044 0.1531571 0.14945528 0.1458428 0.14231752 0.13887732 0.13552018 0.13224408 0.12904708 0.12592728 0.122882836 0.1199119 0.11701273 0.11418359 0.111422785 0.10872868 0.10609966 0.103534155 0.10103065 0.098587625 0.09620364 0.09387727 0.091607116 0.089391835 0.08723009 0.085120596 0.08306209 0.08105334 0.07909314 0.07718034 0.07531378 0.07349233 0.07171492 0.06998049 0.06828798 0.066636406 0.065024756 0.06345207 0.061917417 0.06041987 0.05895853 0.057532527 0.056141008 0.05478314 0.053458102 0.05216511 0.050903384

</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="3.225" PeakHeight="241.154" Num="5" zHalfNm="224.511" Error="1.504">
-41.572 2.629 -1.876 1.083 -0.418
</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="6510.333" A="-1.64983013E11" B="5.0920684E7" C="-3928.9397" Error="0.00156"/>
<QuasiParabolic ID="2" StartDistance="6510.333" EndDistance="6540.667" A="0.0" B="1074.7103" C="-0.12505466" Error="0.0186"/>
<QuasiParabolic ID="3" StartDistance="6540.667" EndDistance="6542.0" A="-5.9121384E12" B="1.80740493E9" C="-138135.78" Error="0.0336"/>
<QuasiParabolic ID="4" StartDistance="6542.0" EndDistance="6564.0" A="1.40176474E11" B="-4.289008E7" C="3280.8347" Error="0.0785"/>
<QuasiParabolic ID="5" StartDistance="6564.0" EndDistance="6569.0" A="-5.9130885E11" B="1.7998784E8" C="-13696.459" Error="0.0173"/>
<QuasiParabolic ID="6" StartDistance="6569.0" EndDistance="6579.0" A="9.2755575E12" B="-2.82408192E9" C="214958.56" Error="0.0627"/>
<QuasiParabolic ID="7" StartDistance="6579.0" EndDistance="6581.0" A="1.57265701E13" B="-4.7851735E9" C="364000.34" Error="0.00735"/>
<QuasiParabolic ID="8" StartDistance="6581.0" EndDistance="6597.0" A="2.53473073E13" B="-7.7089654E9" C="586139.2" Error="0.0243"/>
<QuasiParabolic ID="9" StartDistance="6597.0" EndDistance="6611.154" A="-3.7701466E13" B="1.14054113E10" C="-862578.1" Error="0.00777"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="91.0" Depth="0.154"/>
<TopsideChapman PeakHeight="241.154" PeakDensity="129040.016" PeakScaleHeight="12.762" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
