<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-06 -096 07:40:00.000"
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 F2o cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.04.06 (096) 07:40:00</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">
FF202609604060740001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.900" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.981" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="15.524" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.000" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.000" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.225" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="3.775" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="243.403" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.000" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.000" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="213.151" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="193.765" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.754" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="27.558" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.171" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.894" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="23.900" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.490" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="77">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.0 2.025 2.05 2.075 2.1 2.125 2.15 2.175 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 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
197.500 197.500 200.000 200.000 200.000 200.000 200.000 200.000 200.000 200.000 200.000 200.000 200.000 200.000 200.000 200.000 200.000 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 202.500 205.000 205.000 205.000 205.000 205.000 205.000 207.500 207.500 207.500 207.500 207.500 207.500 207.500 207.500 210.000 210.000 210.000 210.000 210.000 212.500 212.500 212.500 212.500 212.500 215.000 215.000 215.000 215.000 215.000 217.500 217.500 220.000 220.000 222.500 223.333 224.167 225.000 227.500 227.500 227.500 230.000 232.500 234.493 236.879 239.785 243.403 248.030 254.160 262.663 275.250 295.791
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
75 75 75 0 66 78 78 81 78 54 54 54 57 54 57 66 66 72 69 69 69 69 69 72 72 69 69 66 69 66 66 66 66 48 48 60 54 0 63 69 66 93 96 99 96 96 96 96 96 96 93 96 93 90 84 87 84 96 99 72 0 0 72 72 78 78 75 66 78 66 66 60 54 66 69 75 78
</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 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 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="356">
<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 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 171.25 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 213.151 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0
</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 0.38887239 0.4381485 0.4903383 0.54546124 0.6037495 0.66560197 0.7315129 0.80211204 0.8781222 0.9604058 1.0499806 1.1479588 1.2556072 1.3742168 1.5048879 1.64826 1.8038367 1.9696145 2.1415749 2.3145034 2.483006 2.6428547 2.7915192 2.9279141 3.0520651 3.1644487 3.2658653 3.357208 3.439286 3.5128613 3.5785737 3.6370265 3.6887095 3.734046 3.773382 3.8070226 3.8352041 3.858138 3.875975 3.8888364 3.896809 3.899945 3.9 3.8987772 3.8942833 3.8866265 3.8759549 3.8624177 3.8461635 3.82734 3.8060932 3.7825677 3.7569046 3.729243 3.699718 3.6684613 3.635601 3.6012614 3.5655618 3.5286179 3.4905407 3.451437 3.4114091 3.3705547 3.3289673 3.2867358 3.2439446 3.2006745 3.1570015 3.1129975 3.0687313 3.0242665 2.9796638 2.9349804 2.8902695 2.8455813 2.8009624 2.7564569 2.7121048 2.6679444 2.6240108 2.5803366 2.5369515 2.4938834 2.4511576 2.4087975 2.3668242 2.325257 2.2841136 2.2434096 2.2031596 2.1633756 2.1240692 2.0852504 2.0469277 2.0091083 1.9717985 1.9350039 1.8987284 1.8629756 1.8277478 1.7930468 1.7588736 1.7252283 1.6921108 1.6595198 1.627454 1.5959115 1.5648897 1.5343854 1.5043958 1.4749169 1.4459449 1.4174755 1.3895038 1.3620255 1.3350352 1.3085278 1.2824979 1.2569398 1.231848 1.2072165 1.1830394 1.1593108 1.1360245 1.1131743 1.090754 1.0687574 1.0471783 1.02601 1.0052466 0.98488176 0.96490896 0.94532204 0.92611474 0.9072807 0.8888138 0.8707078 0.8529567 0.83555424 0.81849444 0.8017714 0.78537905 0.7693116 0.7535632 0.7381282 0.72300076 0.7081754 0.69364655 0.6794087 0.6654565 0.6517846 0.63838774 0.6252608 0.6123986 0.5997962 0.58744854 0.5753508 0.56349826 0.5518861 0.5405097 0.52936447 0.51844597 0.50774974 0.49727142 0.48700675 0.47695157 0.46710172 0.45745313 0.44800186 0.43874395 0.4296756 0.42079303 0.4120925 0.4035704 0.3952232 0.38704732 0.37903938 0.37119597 0.3635138 0.3559896 0.3486202 0.34140247 0.33433336 0.3274098 0.3206289 0.3139878 0.30748355 0.30111343 0.29487473 0.28876474 0.28278086 0.2769205 0.27118114 0.26556033 0.26005563 0.25466466 0.2493851 0.24421467 0.23915114 0.2341923 0.22933602 0.22458018 0.21992275 0.21536167 0.21089497 0.20652072 0.20223702 0.198042 0.19393383 0.18991074 0.18597095 0.18211277 0.17833449 0.1746345 0.17101115 0.16746287 0.16398813 0.16058539 0.15725316 0.15399002 0.15079449 0.14766522 0.14460081 0.14159992 0.13866127 0.13578354 0.13296548 0.13020585 0.12750347 0.12485712 0.12226565 0.11972794 0.117242865 0.114809334 0.11242628 0.11009266 0.10780746 0.10556965 0.10337828 0.10123238 0.09913099 0.097073205 0.09505812 0.09308484 0.09115251 0.08926028 0.08740731 0.0855928 0.08381594 0.08207595 0.08037208 0.07870356 0.07706968 0.0754697 0.07390293 0.07236868 0.07086627 0.06939504 0.06795436 0.06654357 0.06516207 0.063809246 0.0624845 0.06118725 0.05991693 0.058672976 0.057454847 0.056262005 0.05509392 0.053950086 0.052829996 0.05173316 0.050659087

</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="3.9" PeakHeight="213.151" Num="5" zHalfNm="193.765" Error="0.424">
-46.854 8.215 -4.928 2.012 -0.346
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="12" 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="154.49054" C="0.034389157" Error="0.00128"/>
<QuasiParabolic ID="3" StartDistance="6520.833" EndDistance="6521.0" A="8.2033372E13" B="-2.51600507E10" C="1929178.6" Error="0.0414"/>
<QuasiParabolic ID="4" StartDistance="6521.0" EndDistance="6523.0" A="-2.46256842E12" B="7.5497594E8" C="-57865.19" Error="0.0388"/>
<QuasiParabolic ID="5" StartDistance="6523.0" EndDistance="6539.0" A="1.80959969E11" B="-5.5549436E7" C="4263.0747" Error="0.0393"/>
<QuasiParabolic ID="6" StartDistance="6539.0" EndDistance="6540.0" A="-3.86259458E12" B="1.18120064E9" C="-90304.15" Error="1.25E-10"/>
<QuasiParabolic ID="7" StartDistance="6540.0" EndDistance="6543.0" A="1.3907533E13" B="-4.25308902E9" C="325161.4" Error="0.0242"/>
<QuasiParabolic ID="8" StartDistance="6543.0" EndDistance="6550.0" A="9.8736947E12" B="-3.02006502E9" C="230936.75" Error="0.0365"/>
<QuasiParabolic ID="9" StartDistance="6550.0" EndDistance="6553.0" A="3.38076715E13" B="-1.0328149E10" C="788805.8" Error="0.0113"/>
<QuasiParabolic ID="10" StartDistance="6553.0" EndDistance="6562.0" A="6.4268758E13" B="-1.96249866E10" C="1498163.1" Error="0.0245"/>
<QuasiParabolic ID="11" StartDistance="6562.0" EndDistance="6583.151" A="-3.7605547E13" B="1.14247864E10" C="-867714.1" Error="0.00807"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="61.25" Depth="0.113"/>
<TopsideChapman PeakHeight="213.151" PeakDensity="188709.67" PeakScaleHeight="14.894" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
