<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-04-17 -107 07:10:00.000"
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" >
2026.04.17 (107) 07:10:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.19" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.98" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="78.74007" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202610704170710001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="3.125" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.838" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="11.995" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.325" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.325" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="3.400" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="212.500" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="212.500" 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="2.950" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="248.442" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.325" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.325" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="225.502" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="206.004" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="2.926" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="27.846" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="0.773" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="15.122" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="24.900" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="3.230" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="33">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
212.500 213.500 214.500 215.500 216.500 217.500 218.333 219.167 220.000 220.833 221.667 222.500 222.500 225.000 225.000 227.500 230.000 230.000 232.500 232.500 235.000 237.500 239.697 242.203 245.087 248.442 252.393 257.116 262.861 269.998 279.105 291.128 307.734
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
54 0 0 0 0 78 0 0 0 0 0 69 66 66 66 69 63 69 66 69 45 45 57 0 0 0 0 66 0 90 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 -10.9375 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="361">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 94.0 95.0 96.0 97.0 98.0 99.0 100.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 109.0 110.0 111.0 112.0 113.0 114.0 115.0 116.0 117.0 118.0 119.0 120.0 121.0 122.0 123.0 124.0 125.0 126.0 127.0 128.0 129.0 130.0 131.0 132.0 133.0 133.91667 134.0 135.0 136.0 137.0 138.0 139.0 140.0 141.0 142.0 143.0 144.0 145.0 146.0 147.0 148.0 149.0 150.0 151.0 152.0 153.0 154.0 155.0 156.0 157.0 157.83333 158.0 159.0 160.0 161.0 162.0 163.0 164.0 165.0 166.0 167.0 168.0 169.0 170.0 171.0 172.0 173.0 174.0 175.0 176.0 177.0 178.0 179.0 180.0 181.0 181.75 182.0 183.0 184.0 185.0 186.0 187.0 188.0 189.0 190.0 191.0 192.0 193.0 194.0 195.0 196.0 197.0 198.0 199.0 200.0 201.0 202.0 203.0 204.0 205.0 206.0 207.0 208.0 209.0 210.0 211.0 212.0 213.0 214.0 215.0 216.0 217.0 218.0 219.0 220.0 221.0 222.0 223.0 224.0 225.0 225.502 226.0 227.0 228.0 229.0 230.0 231.0 232.0 233.0 234.0 235.0 236.0 237.0 238.0 239.0 240.0 241.0 242.0 243.0 244.0 245.0 246.0 247.0 248.0 249.0 250.0 251.0 252.0 253.0 254.0 255.0 256.0 257.0 258.0 259.0 260.0 261.0 262.0 263.0 264.0 265.0 266.0 267.0 268.0 269.0 270.0 271.0 272.0 273.0 274.0 275.0 276.0 277.0 278.0 279.0 280.0 281.0 282.0 283.0 284.0 285.0 286.0 287.0 288.0 289.0 290.0 291.0 292.0 293.0 294.0 295.0 296.0 297.0 298.0 299.0 300.0 301.0 302.0 303.0 304.0 305.0 306.0 307.0 308.0 309.0 310.0 311.0 312.0 313.0 314.0 315.0 316.0 317.0 318.0 319.0 320.0 321.0 322.0 323.0 324.0 325.0 326.0 327.0 328.0 329.0 330.0 331.0 332.0 333.0 334.0 335.0 336.0 337.0 338.0 339.0 340.0 341.0 342.0 343.0 344.0 345.0 346.0 347.0 348.0 349.0 350.0 351.0 352.0 353.0 354.0 355.0 356.0 357.0 358.0 359.0 360.0 361.0 362.0 363.0 364.0 365.0 366.0 367.0 368.0 369.0 370.0 371.0 372.0 373.0 374.0 375.0 376.0 377.0 378.0 379.0 380.0 381.0 382.0 383.0 384.0 385.0 386.0 387.0 388.0 389.0 390.0 391.0 392.0 393.0 394.0 395.0 396.0 397.0 398.0 399.0 400.0 401.0 402.0 403.0 404.0 405.0 406.0 407.0 408.0 409.0 410.0 411.0 412.0 413.0 414.0 415.0 416.0 417.0 418.0 419.0 420.0 421.0 422.0 423.0 424.0 425.0 426.0 427.0 428.0 429.0 430.0 431.0 432.0 433.0 434.0 435.0 436.0 437.0 438.0 439.0 440.0 441.0 442.0 443.0 444.0 445.0 446.0 447.0 448.0 449.0
</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 0.353812 0.35317364 0.35216394 0.3506408 0.34876516 0.34647703 0.34372342 0.34053037 0.33679065 0.33268294 0.3279859 0.32283023 0.31710255 0.31084144 0.3038868 0.296354 0.2880265 0.27895737 0.26904914 0.25815907 0.24620353 0.23298319 0.21839198 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 0.20107317 0.2075122 0.21395122 0.22039025 0.22682928 0.23326829 0.23970732 0.24614634 0.25258535 0.25902438 0.2654634 0.27190244 0.27834147 0.2847805 0.2912195 0.29765853 0.30409756 0.3105366 0.31697562 0.32341462 0.32985365 0.33629268 0.3427317 0.34917074 0.354 0.3614575 0.3948601 0.4340921 0.4786422 0.52748203 0.5795327 0.6340748 0.690755 0.7495348 0.8105471 0.8740801 0.9405231 1.0102713 1.0838428 1.1617534 1.2445539 1.332786 1.4269143 1.5272019 1.6335495 1.7453127 1.8611217 1.9788388 2.0958054 2.2093158 2.3170557 2.4175186 2.5099049 2.5940094 2.6700573 2.7384486 2.7996967 2.8543375 2.90284 2.945661 2.9832058 3.0158026 3.0437486 3.0672874 3.0866153 3.1018975 3.113254 3.120778 3.124529 3.125 3.1246712 3.1220675 3.1169622 3.1094687 3.0997007 3.0877726 3.0737977 3.0578885 3.0401561 3.0207098 2.999657 2.9771025 2.9531486 2.927895 2.9014385 2.8738723 2.8452866 2.815769 2.7854028 2.7542684 2.722443 2.6900003 2.6570106 2.623541 2.5896552 2.555414 2.5208747 2.4860919 2.4511168 2.4159982 2.3807817 2.3455105 2.310225 2.274963 2.2397597 2.2046487 2.1696608 2.1348248 2.100167 2.0657125 2.031484 1.9975024 1.9637877 1.9303572 1.8972273 1.8644128 1.8319272 1.7997826 1.76799 1.7365592 1.7054987 1.6748163 1.6445186 1.6146115 1.5850999 1.5559881 1.5272791 1.498976 1.4710807 1.4435946 1.4165184 1.3898529 1.3635975 1.3377517 1.3123146 1.2872849 1.2626604 1.2384392 1.2146189 1.1911968 1.1681699 1.145535 1.1232888 1.1014274 1.0799475 1.0588447 1.0381151 1.0177547 0.9977588 0.9781233 0.9588435 0.93991494 0.92133296 0.9030928 0.8851898 0.8676191 0.850376 0.8334557 0.8168532 0.8005639 0.7845828 0.7689051 0.75352603 0.73844075 0.7236445 0.70913255 0.69490016 0.68094265 0.66725534 0.6538336 0.6406729 0.6277687 0.6151165 0.6027118 0.59055024 0.5786276 0.56693935 0.5554815 0.54424965 0.53323984 0.5224479 0.5118698 0.5015016 0.49133947 0.48137945 0.47161776 0.4620507 0.4526746 0.4434858 0.43448076 0.42565593 0.41700792 0.4085333 0.40022877 0.392091 0.38411677 0.37630293 0.36864635 0.36114398 0.35379282 0.34658986 0.33953223 0.33261707 0.3258416 0.31920305 0.31269872 0.30632594 0.30008215 0.29396477 0.2879713 0.28209925 0.27634627 0.2707099 0.2651879 0.2597779 0.25447774 0.2492852 0.24419813 0.2392144 0.23433195 0.22954875 0.2248628 0.22027214 0.21577488 0.21136911 0.207053 0.20282474 0.19868258 0.19462475 0.19064957 0.18675536 0.18294048 0.17920335 0.17554237 0.17195602 0.16844277 0.16500115 0.1616297 0.15832703 0.1550917 0.15192237 0.14881769 0.14577636 0.14279708 0.1398786 0.13701968 0.13421912 0.13147572 0.12878832 0.12615578 0.12357699 0.12105086 0.11857631 0.116152294 0.11377778 0.11145176 0.10917325 0.10694128 0.1047549 0.10261319 0.10051523 0.09846013 0.09644702 0.094475046 0.092543356 0.09065114 0.08879759 0.08698192 0.08520336 0.083461136 0.08175453 0.08008279 0.078445226 0.07684113 0.075269826 0.07373063 0.07222291 0.070746 0.06929928 0.06788214 0.066493966 0.065134175 0.063802175 0.062497415 0.061219323 0.059967365 0.058741003 0.057539713 0.056362983 0.055210315 0.054081213 0.052975196 0.051891796 0.050830547

</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="3.125" PeakHeight="225.502" Num="5" zHalfNm="206.004" Error="1.555">
-47.228 6.208 -4.154 2.091 -0.669
</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="6503.917" A="-2.64886878E11" B="8.1755208E7" C="-6308.147" Error="0.00151"/>
<QuasiParabolic ID="2" StartDistance="6503.917" EndDistance="6527.833" A="0.0" B="-1180.4213" C="0.22150503" Error="0.0169"/>
<QuasiParabolic ID="3" StartDistance="6527.833" EndDistance="6548.0" A="1.05546965E11" B="-3.2432318E7" C="2491.4583" Error="0.0176"/>
<QuasiParabolic ID="4" StartDistance="6548.0" EndDistance="6550.0" A="-1.36768887E12" B="4.17548064E8" C="-31868.682" Error="0.00359"/>
<QuasiParabolic ID="5" StartDistance="6550.0" EndDistance="6560.0" A="7.9015497E12" B="-2.41275366E9" C="184184.89" Error="0.0353"/>
<QuasiParabolic ID="6" StartDistance="6560.0" EndDistance="6568.0" A="1.55235847E13" B="-4.7365448E9" C="361303.12" Error="0.0237"/>
<QuasiParabolic ID="7" StartDistance="6568.0" EndDistance="6575.0" A="4.0689539E13" B="-1.23997471E10" C="944677.2" Error="0.0087"/>
<QuasiParabolic ID="8" StartDistance="6575.0" EndDistance="6595.502" A="-2.40078459E13" B="7.280066E9" C="-551886.5" Error="0.00809"/>
</QuasiParabolicList>
<ProfileValley Model="ULCAR" Width="71.75" Depth="0.154"/>
<TopsideChapman PeakHeight="225.502" PeakDensity="121161.6" PeakScaleHeight="15.122" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
