<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-07 -127 01:45:00.000"
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: 70% PACIFIC flags: F2 cusps do not match</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.07 (127) 01:45:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.21" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.99" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="75.82641" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202612705070145001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.675" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.754" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.797" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.000" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.000" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="4.125" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="242.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="242.500" 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="3.600" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="275.975" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.000" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.000" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="243.257" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="227.337" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.291" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="22.864" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.868" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="12.051" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="22.620" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.180" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="28">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
242.500 245.000 245.000 245.000 247.500 247.500 247.500 250.000 250.000 250.000 252.500 252.500 255.000 255.000 257.500 257.500 258.601 259.837 261.235 262.829 264.665 266.800 269.314 272.320 275.975 280.517 286.313 293.964
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 87 90 90 87 93 90 90 93 105 105 105 102 96 90 96 93 96 96 93 93 93 90 78 75 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 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 1.5625 -1.5625 7.8125 -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 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 140.91667 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 171.83333 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 202.75 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 243.257 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0
</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 0.3538872 0.35347393 0.3529119 0.3519786 0.3509026 0.34953943 0.34789655 0.34598285 0.3438088 0.34138623 0.3386593 0.33571413 0.33243394 0.32884502 0.3249759 0.3207348 0.3162249 0.311316 0.3060709 0.30039963 0.29436976 0.2878726 0.28096467 0.27349284 0.26549044 0.25688842 0.24761072 0.23761433 0.22685163 0.21513027 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 0.2 0.20083019 0.20581132 0.21079245 0.21577358 0.22075471 0.22573584 0.23071699 0.23569812 0.24067925 0.24566038 0.2506415 0.25562266 0.2606038 0.26558492 0.27056605 0.27554718 0.2805283 0.28550944 0.29049057 0.2954717 0.30045283 0.30543396 0.3104151 0.31539622 0.32037735 0.32535848 0.3303396 0.33532074 0.3403019 0.34528303 0.35026416 0.354 0.3632734 0.40395245 0.45050183 0.50282806 0.56062186 0.62351674 0.691148 0.7632447 0.8396418 0.9202429 1.005026 1.093983 1.1871243 1.2844398 1.3859007 1.4913859 1.60074 1.7137012 1.8298781 1.9487597 2.0697408 2.19209 2.3149343 2.4373765 2.5583894 2.6769748 2.7921643 2.90299 3.0085855 3.1081572 3.201051 3.2866478 3.364477 3.4341476 3.4953604 3.5478466 3.5914469 3.6260126 3.651451 3.6676898 3.6746943 3.675 3.6736534 3.6677208 3.6573005 3.642657 3.624055 3.6017575 3.5760243 3.5471098 3.515263 3.4807255 3.4437315 3.4045062 3.3632662 3.3202186 3.2755609 3.2294807 3.1821566 3.1337562 3.0844383 3.0343523 2.9836376 2.9324248 2.8808362 2.828985 2.7769763 2.7249079 2.6728694 2.6209438 2.569207 2.5177286 2.466572 2.415795 2.36545 2.315584 2.2662392 2.217454 2.1692615 2.1216922 2.0747716 2.028523 1.9829655 1.938116 1.8939885 1.8505945 1.8079431 1.7660414 1.7248943 1.6845053 1.644876 1.6060065 1.5678958 1.5305412 1.4939393 1.4580854 1.4229741 1.388599 1.3549533 1.322029 1.2898178 1.258311 1.2274995 1.1973733 1.1679226 1.1391371 1.1110063 1.0835195 1.0566657 1.0304338 1.004813 0.9797919 0.95535934 0.9315041 0.90821487 0.8854806 0.86329 0.84163207 0.8204958 0.7998702 0.7797445 0.76010793 0.74095 0.7222601 0.704028 0.68624353 0.6688966 0.6519774 0.6354761 0.61938316 0.6036892 0.588385 0.57346135 0.5589095 0.5447206 0.53088605 0.5173975 0.5042467 0.49142554 0.4789261 0.46674064 0.45486158 0.44328144 0.431993 0.42098916 0.4102629 0.39980748 0.38961622 0.3796826 0.3700003 0.3605631 0.3513649 0.34239984 0.33366203 0.3251459 0.3168459 0.30875665 0.30087283 0.29318938 0.28570122 0.2784035 0.27129138 0.26436025 0.25760552 0.25102282 0.24460772 0.23835605 0.23226368 0.22632658 0.22054084 0.21490261 0.20940816 0.20405388 0.19883619 0.19375163 0.18879683 0.18396851 0.17926344 0.1746785 0.17021063 0.16585687 0.16161431 0.15748012 0.15345155 0.1495259 0.14570056 0.14197297 0.13834065 0.13480116 0.13135216 0.1279913 0.12471638 0.121525176 0.11841556 0.11538546 0.11243284 0.10955572 0.10675218 0.10402034 0.10135837 0.09876449 0.096236944 0.09377406 0.091374174 0.089035675 0.086757004 0.08453663 0.08237305 0.08026483 0.07821055 0.07620883 0.07425832 0.07235772 0.07050575 0.06870117 0.06694277 0.065229364 0.0635598 0.06193296 0.06034775 0.058803108 0.057297997 0.0558314 0.054402336 0.05300985 0.051652994 0.05033087

</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="3.675" PeakHeight="243.257" Num="5" zHalfNm="227.337" Error="0.368">
-41.064 0.994 -0.574 0.307 -0.17
</ShiftedChebyshev>
</ShiftedChebyshevList>
<QuasiParabolicList Num="8" 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="6510.917" A="-1.58830494E11" B="4.902176E7" C="-3782.4177" Error="0.00166"/>
<QuasiParabolic ID="2" StartDistance="6510.917" EndDistance="6541.833" A="0.0" B="-1179.198" C="0.22113766" Error="0.0221"/>
<QuasiParabolic ID="3" StartDistance="6541.833" EndDistance="6572.0" A="6.5525187E10" B="-2.0104784E7" C="1542.1852" Error="0.0221"/>
<QuasiParabolic ID="4" StartDistance="6572.0" EndDistance="6582.0" A="1.2842034E13" B="-3.90826931E9" C="297355.06" Error="0.0291"/>
<QuasiParabolic ID="5" StartDistance="6582.0" EndDistance="6591.0" A="2.95606157E13" B="-8.9883607E9" C="683263.0" Error="0.0158"/>
<QuasiParabolic ID="6" StartDistance="6591.0" EndDistance="6602.0" A="2.40833748E13" B="-7.3263242E9" C="557179.2" Error="0.0279"/>
<QuasiParabolic ID="7" StartDistance="6602.0" EndDistance="6613.257" A="-5.9231382E13" B="1.79129242E10" C="-1354305.9" Error="0.00958"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="92.75" Depth="0.154"/>
<TopsideChapman PeakHeight="243.257" PeakDensity="167563.58" PeakScaleHeight="12.051" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
