<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-05-19 -139 00:50:00.000"
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: 90% PACIFIC flags: Multiple candidates for F2x cusp, Multiple candidates for F2o cusp</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.05.19 (139) 00:50:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.22" 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">
FF202613905190050001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.750" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.661" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="13.727" 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="4.100" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="245.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="245.000" 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="3.600" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="277.646" 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="251.082" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="232.207" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.653" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="27.043" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="1.070" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="14.428" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="25.820" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.520" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="31">
<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 3.7 3.725 3.75
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
245.000 245.000 247.500 247.500 247.500 250.000 250.000 252.500 252.500 252.500 255.000 255.000 257.500 257.500 260.000 262.500 262.500 265.000 266.041 267.241 268.637 270.284 272.255 274.657 277.646 281.471 286.537 293.565 303.971 320.958 353.657
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 78 78 93 93 90 90 90 93 96 96 96 96 96 99 93 96 93 96 84 84 87 87 87 84 78 78 90 90 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 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="384">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 141.5 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 204.5 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 251.082 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0 450.0 451.0 452.0 453.0 454.0 455.0 456.0 457.0 458.0 459.0 460.0 461.0 462.0 463.0 464.0 465.0 466.0 467.0 468.0 469.0 470.0 471.0 472.0 473.0
</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 0.35354906 0.3529118 0.35205317 0.35097662 0.34968653 0.34811512 0.3462709 0.3442354 0.34187606 0.33927825 0.33638793 0.33322465 0.32980946 0.32603815 0.32200715 0.31768805 0.31300464 0.30795586 0.3025528 0.29676917 0.29057935 0.28398937 0.27689454 0.26927269 0.26112098 0.25231692 0.24289067 0.23271252 0.2217551 0.20985778 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 0.2048889 0.20977777 0.21466666 0.21955556 0.22444445 0.22933333 0.23422222 0.23911111 0.244 0.2488889 0.25377777 0.25866666 0.26355556 0.26844445 0.27333334 0.27822223 0.28311113 0.288 0.29288888 0.29777777 0.30266666 0.30755556 0.31244445 0.31733334 0.32222223 0.32711112 0.332 0.33688888 0.34177777 0.34666666 0.35155556 0.354 0.37106135 0.40869907 0.45083115 0.4970319 0.546842 0.59986055 0.65582293 0.7146154 0.77622765 0.8407299 0.9082944 0.97909206 1.0533687 1.1313531 1.2133057 1.2994672 1.3900684 1.4852421 1.5851305 1.6896642 1.7986764 1.911791 2.02839 2.147628 2.268437 2.389587 2.5097566 2.6276379 2.7420046 2.8518233 2.9562562 3.054699 3.1467042 3.2320397 3.3105843 3.3823137 3.447294 3.5056033 3.5573795 3.6027308 3.6417997 3.6747074 3.7015543 3.7224448 3.737445 3.746613 3.7499804 3.75 3.7485373 3.743709 3.7356598 3.7245467 3.710527 3.6937575 3.6743948 3.652593 3.6285028 3.6022742 3.5740516 3.5439773 3.5121887 3.4788191 3.4439979 3.4078488 3.3704917 3.3320413 3.2926075 3.2522953 3.2112045 3.1694312 3.1270654 3.0841935 3.0408964 2.9972515 2.953331 2.9092033 2.8649325 2.820579 2.7761996 2.7318463 2.687569 2.643413 2.5994213 2.555633 2.5120852 2.4688113 2.4258423 2.3832066 2.3409307 2.299038 2.2575502 2.2164872 2.1758664 2.1357036 2.096013 2.0568073 2.0180972 1.9798924 1.9422011 1.9050305 1.8683861 1.832273 1.7966949 1.7616543 1.7271533 1.6931931 1.6597738 1.6268953 1.5945563 1.5627555 1.5314906 1.5007588 1.4705572 1.4408821 1.4117297 1.3830955 1.3549751 1.3273635 1.3002555 1.2736458 1.2475287 1.2218983 1.196749 1.1720744 1.1478684 1.1241245 1.1008365 1.0779978 1.0556018 1.033642 1.0121118 0.99100435 0.97031313 0.95003134 0.9301524 0.9106696 0.89157635 0.87286603 0.854532 0.8365678 0.8189669 0.8017229 0.7848294 0.76827997 0.7520685 0.73618877 0.7206346 0.7053999 0.69047874 0.6758652 0.66155344 0.64753765 0.63381225 0.62037164 0.60721016 0.59432256 0.58170336 0.5693473 0.55724925 0.5454041 0.5338068 0.5224524 0.5113361 0.50045305 0.4897986 0.47936818 0.4691572 0.4591612 0.44937584 0.43979684 0.43041998 0.42124113 0.41225618 0.40346122 0.39485228 0.38642558 0.37817731 0.37010378 0.3622014 0.35446662 0.3468959 0.3394859 0.33223325 0.32513463 0.31818688 0.31138682 0.30473134 0.29821745 0.29184213 0.28560254 0.27949578 0.27351907 0.26766965 0.2619449 0.2563421 0.25085878 0.24549237 0.2402404 0.23510045 0.23007014 0.22514719 0.2203293 0.21561424 0.21099986 0.20648399 0.20206457 0.19773954 0.1935069 0.18936467 0.18531096 0.18134387 0.17746156 0.17366223 0.16994412 0.1663055 0.16274467 0.15925997 0.1558498 0.15251257 0.1492467 0.14605068 0.14292303 0.13986228 0.13686703 0.13393585 0.1310674 0.12826031 0.1255133 0.12282508 0.12019439 0.11762 0.11510071 0.112635344 0.11022275 0.1078618 0.10555139 0.103290446 0.1010779 0.09891272 0.096793905 0.09472045 0.0926914 0.09070579 0.08876269 0.08686121 0.08500044 0.083179526 0.0813976 0.07965384 0.077947415 0.07627754 0.074643426 0.073044315 0.07147945 0.0699481 0.06844955 0.0669831 0.065548055 0.06414375 0.062769525 0.061424732 0.060108747 0.05882095 0.05756074 0.056327526 0.055120725 0.05393978 0.052784126 0.051653232 0.050546568

</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="3.75" PeakHeight="251.082" Num="5" zHalfNm="232.207" Error="1.088">
-48.299 3.14 -2.265 1.227 -0.385
</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="6511.5" A="-1.53036653E11" B="4.7233536E7" C="-3644.4375" Error="0.00157"/>
<QuasiParabolic ID="2" StartDistance="6511.5" EndDistance="6543.0" A="0.0" B="1401.1318" C="-0.17515327" Error="0.0253"/>
<QuasiParabolic ID="3" StartDistance="6543.0" EndDistance="6574.0" A="4.7295279E10" B="-1.4548633E7" C="1118.8308" Error="0.0492"/>
<QuasiParabolic ID="4" StartDistance="6574.0" EndDistance="6583.0" A="1.01123558E13" B="-3.07662976E9" C="234012.14" Error="0.0673"/>
<QuasiParabolic ID="5" StartDistance="6583.0" EndDistance="6588.0" A="1.32317928E13" B="-4.02435456E9" C="305994.88" Error="0.00755"/>
<QuasiParabolic ID="6" StartDistance="6588.0" EndDistance="6596.0" A="3.07063423E13" B="-9.3293179E9" C="708618.06" Error="0.0122"/>
<QuasiParabolic ID="7" StartDistance="6596.0" EndDistance="6605.0" A="2.58437766E13" B="-7.8549202E9" C="596853.56" Error="0.0215"/>
<QuasiParabolic ID="8" StartDistance="6605.0" EndDistance="6621.082" A="-3.9975249E13" B="1.20751411E10" C="-911856.6" Error="0.00948"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="94.5" Depth="0.154"/>
<TopsideChapman PeakHeight="251.082" PeakDensity="174472.7" PeakScaleHeight="14.428" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
