<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-14 -287 16:50:00.000"
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) 16:50:00</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">
FF202628710141650009039031101000005015000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="11.150" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.260" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="25.204" 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="11.400" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="365.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="365.000" 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="10.800" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="627.000" 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="3.228" 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="/" />
<Modeled Name="foF1p" Val="4.284" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="434.453" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="290.551" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.726" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="190.094" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="70.406" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="105.439" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="237.890" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.370" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="102">
<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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
365.000 367.500 370.000 372.500 375.000 377.500 380.000 382.500 385.000 385.000 385.000 385.000 385.000 386.667 388.333 390.000 400.000 401.250 402.500 403.750 405.000 408.000 411.000 414.000 417.000 420.000 423.000 426.000 429.000 432.000 435.000 438.000 441.000 444.000 447.000 450.000 453.000 456.000 459.000 462.000 465.000 468.000 471.000 474.000 477.000 480.000 483.000 486.000 489.000 492.000 495.000 498.000 501.000 504.000 507.000 510.000 513.000 516.000 519.000 522.000 525.000 528.000 531.000 534.000 537.000 540.000 543.000 546.000 549.000 552.000 555.000 558.000 561.000 564.000 567.000 570.000 573.000 576.000 579.000 582.000 585.000 588.000 591.000 594.000 597.000 600.000 603.000 606.000 609.000 612.000 615.000 618.000 621.000 624.000 627.000 630.000 650.000 677.492 709.970 748.929 796.521 855.973
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
63 0 0 0 0 0 57 0 63 69 0 66 54 0 0 51 60 0 0 0 69 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 48 51 48 45 0 48 42
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-0.390625 -0.390625 0.390625 2.734375 -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 -1.953125 0.390625 -1.953125 -2.734375 0.390625 1.953125 -1.171875 1.953125 -0.390625 1.953125 1.953125 1.953125 -0.390625 2.734375 -1.953125 1.171875 -1.953125 -1.953125 1.953125 0.390625 1.953125 1.953125 -1.171875 -1.953125 -0.390625 -2.734375 -0.390625 2.734375 0.390625 -2.734375 1.171875 -1.171875 2.734375 -2.734375 -2.734375 1.171875 -0.390625 2.734375 -1.953125 1.171875 -2.734375 -2.734375 -1.953125 -2.734375 0.390625 -2.734375 -1.171875 -2.734375 1.171875 -2.734375 0.390625 1.171875 1.171875 0.390625 -2.734375 -1.953125 -0.390625 -1.171875 2.734375 -1.953125 -2.734375 0.390625 1.171875 2.734375 1.171875 -2.734375 1.953125 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" >
89.509 90.0 95.0 100.0 105.0 110.0 112.226 114.453 115.0 116.679 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 434.453 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.239 2.171 2.794 3.123 3.228 3.106 3.106 3.136 3.228 3.323 3.465 3.605 3.744 3.881 4.017 4.152 4.286 4.419 4.551 4.683 4.814 4.945 5.076 5.206 5.337 5.467 5.597 5.728 5.858 5.989 6.121 6.252 6.384 6.516 6.649 6.782 6.916 7.051 7.186 7.321 7.457 7.594 7.731 7.869 8.007 8.146 8.286 8.426 8.566 8.707 8.848 8.989 9.13 9.27 9.41 9.55 9.688 9.825 9.96 10.092 10.222 10.347 10.468 10.583 10.691 10.791 10.881 10.961 11.028 11.082 11.121 11.143 11.15 11.15 11.147 11.139 11.127 11.11 11.089 11.064 11.035 11.002 10.965 10.925 10.882 10.835 10.785 10.732 10.676 10.618 10.557 10.493 10.428 10.36 10.29 10.218 10.144 10.069 9.992 9.914 9.834 9.753 9.67 9.587 9.503 9.417 9.331 9.245 9.157 9.069 8.98 8.892 8.802 8.713 8.623 8.533 8.442 8.352 8.262 8.172 8.081 7.991 7.901 7.812 7.722 7.633 7.544 7.456 7.368 7.28 7.193 7.106 7.02 6.934 6.849 6.765 6.681 6.597 6.514 6.432 6.35 6.27 6.189 6.11 6.031 5.953 5.875 5.799 5.723 5.647 5.573 5.499 5.426 5.354 5.282 5.211 5.141 5.072 5.003 4.935 4.868 4.802 4.736 4.672 4.608 4.544 4.482 4.42 4.359 4.298 4.239 4.18 4.122 4.064 4.007 3.951 3.896 3.841 3.787 3.734 3.681 3.629 3.578 3.528 3.478 3.428 3.38

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.228" PeakHeight="110.0" Num="3" Error="0.0">
-30.379 12.973 -3.085
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.228" EndFrequency="11.15" PeakHeight="434.453" Num="5" zHalfNm="290.551" Error="2.72">
-281.733 -54.947 20.915 -1.913 -0.096
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="6.679" Depth="0.122"/>
<TopsideChapman PeakHeight="434.453" PeakDensity="1542462.8" PeakScaleHeight="105.439" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
