<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-14 -287 18:20:00.000"
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) 18:20:00</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">
FF202628710141820009039031101000005015000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="11.350" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.488" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="28.241" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="5.800" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="5.800" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.650" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="10.750" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="520.000" 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="2.857" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="5.800" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="5.800" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="389.260" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="275.795" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="10.234" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="153.991" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="58.481" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="84.366" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="186.140" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.420" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="112">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
5.8 5.85 5.9 5.95 6.0 6.05 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 11.35
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
330.000 331.667 333.333 335.000 336.667 338.333 340.000 341.667 343.333 345.000 345.000 345.000 347.500 350.000 350.000 350.000 355.000 355.000 355.000 355.000 355.000 355.000 355.000 355.000 356.667 358.333 360.000 362.192 364.384 366.575 368.767 370.959 373.151 375.342 377.534 379.726 381.918 384.110 386.301 388.493 390.685 392.877 395.068 397.260 399.452 401.644 403.836 406.027 408.219 410.411 412.603 414.795 416.986 419.178 421.370 423.562 425.753 427.945 430.137 432.329 434.521 436.712 438.904 441.096 443.288 445.479 447.671 449.863 452.055 454.247 456.438 458.630 460.822 463.014 465.205 467.397 469.589 471.781 473.973 476.164 478.356 480.548 482.740 484.932 487.123 489.315 491.507 493.699 495.890 498.082 500.274 502.466 504.658 506.849 509.041 511.233 513.425 515.616 517.808 520.000 525.421 531.514 538.413 546.289 555.365 565.938 578.413 593.352 611.566 634.263 663.333 701.898
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 0 0 0 63 0 0 0 0 66 69 69 0 63 66 69 0 0 66 0 69 0 69 54 0 0 69 45 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 60 60 57 57 54 54 51 51 51 54 51 45 45
</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 -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 1.171875 0.390625 1.171875 -0.390625 2.734375 2.734375 1.171875 1.171875 2.734375 0.390625 -2.734375 0.390625 -2.734375 -0.390625 -1.953125 0.390625 -1.171875 1.171875 -1.953125 0.390625 2.734375 -1.171875 2.734375 -0.390625 -1.953125 2.734375 0.390625 2.734375 2.734375 -2.734375 -2.734375 -0.390625 -1.171875 -1.171875 -0.390625 -1.953125 -2.734375 -1.171875 -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
</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" >
89.57 90.0 95.0 100.0 105.0 110.0 113.868 115.0 117.735 120.0 121.603 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 389.26 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.235 1.92 2.473 2.764 2.857 2.735 2.735 2.735 2.806 2.857 2.972 3.14 3.306 3.47 3.633 3.794 3.954 4.114 4.273 4.432 4.591 4.75 4.91 5.07 5.231 5.393 5.556 5.72 5.885 6.052 6.221 6.39 6.562 6.735 6.91 7.087 7.265 7.445 7.627 7.811 7.996 8.183 8.371 8.56 8.75 8.94 9.13 9.32 9.509 9.696 9.88 10.06 10.235 10.404 10.565 10.716 10.855 10.981 11.092 11.184 11.258 11.311 11.342 11.35 11.35 11.345 11.333 11.313 11.286 11.253 11.214 11.169 11.118 11.062 11.0 10.934 10.863 10.789 10.71 10.627 10.541 10.451 10.359 10.263 10.166 10.065 9.963 9.859 9.753 9.645 9.537 9.426 9.315 9.203 9.09 8.977 8.863 8.748 8.633 8.519 8.404 8.289 8.174 8.06 7.946 7.832 7.719 7.606 7.494 7.383 7.272 7.162 7.053 6.945 6.838 6.731 6.626 6.521 6.418 6.316 6.214 6.114 6.015 5.917 5.82 5.725 5.63 5.537 5.445 5.354 5.264 5.176 5.089 5.003 4.918 4.834 4.751 4.67 4.59 4.511 4.433 4.357 4.281 4.207 4.134 4.062 3.991 3.921 3.852 3.784 3.718 3.652 3.588 3.525 3.462 3.401 3.341 3.281 3.223 3.165 3.109 3.054 2.999 2.945 2.893 2.841 2.79 2.74 2.691 2.642 2.595 2.548 2.502 2.457 2.413 2.369 2.326 2.284 2.243 2.203 2.163 2.123 2.085 2.047 2.01 1.974 1.938

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="2.857" PeakHeight="110.0" Num="3" Error="0.0">
-30.072 12.522 -2.88
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="2.857" EndFrequency="11.35" PeakHeight="389.26" Num="5" zHalfNm="275.795" Error="2.126">
-240.001 -41.474 14.218 -0.013 -0.387
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="11.603" Depth="0.122"/>
<TopsideChapman PeakHeight="389.26" PeakDensity="1598294.0" PeakScaleHeight="84.366" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
