<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-14 -287 19:20:00.000"
URSICode="SAA0K"
StationName="SaoLuis"
GeoLatitude="-2.6"
GeoLongitude="315.8"
Source="Ionosonde"
SourceType="DPS-4"
ScalerType="auto">
<SystemInfo UMLStationID="903">
<FrequencyStepping StartFrequency="1.0" StopFrequency="15.0">
<LinearStepping Step="0.05" Units="MHz" />
</FrequencyStepping>
<RangeStepping StartRange="80.0" StopRange="1360.0" >
<LinearStepping Step="5.0" 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.5002.44 Confidence: 95% PACIFIC flags: Multiple candidates for F2x cusp</Comments>
<ContactPerson>
<Name>Dr. Mangalathayil Ali Abdu</Name>
<Affiliation>INPE, Division of Aeronomy</Affiliation>
<Address>Av dos Astronautas, 1.758 Jd. Granja - CEP: 12227-010 Sao Jose dos Campos - SP Brasil</Address>
<Email>maabdu@dae.inpe.br</Email>
</ContactPerson>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.10.14 (287) 19:20:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.63" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-11.39" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-19.74" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="-1.0" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202628710141920009039031101000005015000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="11.300" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.385" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="26.954" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="6.100" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="6.100" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.600" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="330.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="330.000" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="11.000" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="582.179" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Custom Name="dlt foF2" Val="0.000" Description="Adjustment to the scaled foF2 during profile inversion" Units="MHz" />
<Modeled Name="foEp" Val="2.430" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="6.100" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="6.100" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="401.984" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="289.809" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="10.438" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="152.026" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="55.484" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="79.976" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="183.750" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.320" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="105">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
6.1 6.15 6.2 6.25 6.3 6.35 6.4 6.45 6.5 6.55 6.6 6.65 6.7 6.75 6.8 6.85 6.9 6.95 7.0 7.05 7.1 7.15 7.2 7.25 7.3 7.35 7.4 7.45 7.5 7.55 7.6 7.65 7.7 7.75 7.8 7.85 7.9 7.95 8.0 8.05 8.1 8.15 8.2 8.25 8.3 8.35 8.4 8.45 8.5 8.55 8.6 8.65 8.7 8.75 8.8 8.85 8.9 8.95 9.0 9.05 9.1 9.15 9.2 9.25 9.3 9.35 9.4 9.45 9.5 9.55 9.6 9.65 9.7 9.75 9.8 9.85 9.9 9.95 10.0 10.05 10.1 10.15 10.2 10.25 10.3 10.35 10.4 10.45 10.5 10.55 10.6 10.65 10.7 10.75 10.8 10.85 10.9 10.95 11.0 11.05 11.1 11.15 11.2 11.25 11.3
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
330.000 331.000 332.000 333.000 334.000 335.000 337.500 340.000 342.500 345.000 347.500 350.000 352.500 355.000 357.500 360.000 360.000 360.000 360.000 365.000 365.000 365.000 367.821 370.641 373.462 376.282 379.103 381.923 384.744 387.564 390.385 393.205 396.026 398.846 401.667 404.487 407.308 410.128 412.949 415.769 418.590 421.410 424.231 427.051 429.872 432.692 435.513 438.333 441.154 443.974 446.795 449.615 452.436 455.256 458.077 460.897 463.718 466.538 469.359 472.179 475.000 477.821 480.641 483.462 486.282 489.103 491.923 494.744 497.564 500.385 503.205 506.026 508.846 511.667 514.487 517.308 520.128 522.949 525.769 528.590 531.410 534.231 537.051 539.872 542.692 545.513 548.333 551.154 553.974 556.795 559.615 562.436 565.256 568.077 570.897 573.718 576.538 579.359 582.179 585.000 590.000 601.134 616.601 639.540 677.089
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
75 0 0 63 0 75 0 75 0 78 0 0 0 51 0 69 72 75 0 75 72 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 69 69 63 60 57 48
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 0.390625 -0.390625 0.390625 -2.734375 2.734375 2.734375 1.171875 2.734375 -2.734375 1.953125 -0.390625 -2.734375 1.953125 -2.734375 -0.390625 -1.953125 -0.390625 -1.953125 -1.953125 -2.734375 -2.734375 2.734375 -2.734375 -0.390625 0.390625 2.734375 -0.390625 1.171875 2.734375 2.734375 0.390625 -1.171875 2.734375 2.734375 0.390625 2.734375 1.953125 -1.171875 -1.171875 -0.390625 -0.390625 1.953125 1.171875 1.953125 -0.390625 2.734375 2.734375 -0.390625 -1.953125 -0.390625 -1.171875 -2.734375 2.734375 -2.734375 -2.734375 2.734375 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.33" Type="vertical" >
<Tabulated Num="188">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
89.655 90.0 95.0 100.0 105.0 110.0 115.0 115.935 120.0 121.869 125.0 127.804 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 401.984 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.229 1.631 2.104 2.351 2.43 2.342 2.305 2.305 2.305 2.371 2.43 2.505 2.669 2.827 2.983 3.141 3.3 3.462 3.626 3.794 3.964 4.136 4.311 4.488 4.666 4.845 5.024 5.204 5.384 5.563 5.742 5.92 6.097 6.273 6.449 6.624 6.798 6.971 7.144 7.315 7.486 7.657 7.827 7.997 8.166 8.335 8.504 8.673 8.842 9.011 9.179 9.348 9.516 9.685 9.853 10.02 10.186 10.351 10.512 10.669 10.819 10.958 11.083 11.186 11.26 11.297 11.3 11.298 11.289 11.272 11.247 11.214 11.175 11.128 11.076 11.017 10.953 10.884 10.809 10.73 10.646 10.558 10.467 10.372 10.273 10.172 10.068 9.962 9.853 9.742 9.63 9.516 9.4 9.283 9.166 9.047 8.928 8.808 8.688 8.567 8.447 8.326 8.206 8.085 7.965 7.846 7.727 7.608 7.49 7.373 7.257 7.141 7.027 6.913 6.8 6.688 6.578 6.468 6.36 6.253 6.147 6.042 5.939 5.837 5.736 5.636 5.538 5.441 5.345 5.251 5.158 5.066 4.976 4.887 4.799 4.713 4.627 4.544 4.461 4.38 4.3 4.221 4.144 4.068 3.993 3.919 3.847 3.776 3.706 3.637 3.569 3.503 3.437 3.373 3.31 3.248 3.187 3.127 3.069 3.011 2.954 2.898 2.844 2.79 2.737 2.685 2.634 2.584 2.535 2.487 2.44 2.394 2.348 2.303 2.259 2.216 2.174 2.133 2.092 2.052 2.013 1.974 1.936 1.899 1.863 1.827 1.792

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="2.43" PeakHeight="110.0" Num="3" Error="0.0">
-29.635 11.899 -2.609
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="2.43" EndFrequency="11.3" PeakHeight="401.984" Num="5" zHalfNm="289.809" Error="3.619">
-242.08 -54.865 30.618 -10.469 2.616
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="17.804" Depth="0.125"/>
<TopsideChapman PeakHeight="401.984" PeakDensity="1584243.1" PeakScaleHeight="79.976" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
