<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-02 -306 19:10:00.000"
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="14.0">
<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: 90% PACIFIC flags: One of F2 cusps was derived from the other</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" >
2026.11.02 (306) 19:10:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.63" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-11.41" 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">
FF202630611021910009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="11.900" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.516" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="29.938" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="8.800" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="8.800" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="12.200" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="405.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="405.000" 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="0.150" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="11.050" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="495.000" 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="2.489" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="8.800" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="8.800" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="375.850" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="264.826" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.828" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="152.701" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="60.833" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="80.548" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="169.090" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.640" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="63">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 11.4 11.45 11.5 11.55 11.6 11.65 11.7 11.75 11.8 11.85 11.9
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
405.000 405.000 405.000 408.333 411.667 415.000 415.000 415.000 420.000 420.000 420.000 420.000 420.000 425.000 425.000 425.000 430.000 430.000 435.000 435.000 437.500 440.000 442.500 445.000 445.000 447.500 450.000 452.500 455.000 455.000 455.000 460.000 460.000 460.000 465.000 465.000 470.000 475.000 475.000 480.000 485.000 485.000 490.000 490.000 495.000 495.000 505.000 510.000 515.000 515.000 520.000 525.000 530.000 535.000 541.358 548.689 557.232 567.318 579.404 594.151 612.547 636.138 667.485
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 0 0 0 0 0 54 0 45 0 0 63 51 0 63 0 0 63 0 0 0 60 63 0 63 0 63 0 0 57 0 54 60 51 57 57 57 57 57 57 60 57 57 57 57 54 54 54 57 60 57 54 60 60 60 60 57 57 54 54 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 -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 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -1.171875 -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" >
89.642 90.0 95.0 100.0 105.0 110.0 115.0 115.637 120.0 121.274 125.0 126.911 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 375.85 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.23 1.671 2.155 2.408 2.489 2.391 2.364 2.364 2.364 2.447 2.489 2.588 2.75 2.916 3.088 3.268 3.455 3.652 3.857 4.07 4.29 4.517 4.749 4.985 5.222 5.462 5.701 5.939 6.176 6.411 6.644 6.875 7.103 7.329 7.553 7.773 7.992 8.208 8.422 8.634 8.843 9.05 9.256 9.458 9.659 9.856 10.051 10.243 10.431 10.614 10.792 10.964 11.128 11.283 11.427 11.557 11.67 11.764 11.835 11.881 11.9 11.9 11.897 11.885 11.865 11.838 11.802 11.759 11.71 11.654 11.592 11.524 11.45 11.371 11.288 11.2 11.107 11.011 10.911 10.808 10.702 10.593 10.482 10.368 10.252 10.134 10.015 9.894 9.772 9.649 9.525 9.4 9.275 9.149 9.023 8.897 8.771 8.645 8.519 8.394 8.269 8.144 8.02 7.897 7.774 7.652 7.531 7.411 7.292 7.175 7.058 6.942 6.827 6.714 6.602 6.491 6.381 6.273 6.166 6.06 5.955 5.852 5.751 5.65 5.551 5.454 5.358 5.263 5.169 5.077 4.987 4.897 4.809 4.723 4.637 4.553 4.471 4.389 4.309 4.231 4.153 4.077 4.002 3.929 3.856 3.785 3.715 3.646 3.579 3.512 3.447 3.383 3.32 3.258 3.197 3.137 3.078 3.021 2.964 2.908 2.854 2.8 2.747 2.695 2.645 2.595 2.546 2.498 2.45 2.404 2.359 2.314 2.27 2.227 2.185 2.143 2.103 2.063 2.024 1.985 1.947 1.91 1.874 1.838 1.803 1.769 1.735

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="2.489" PeakHeight="110.0" Num="3" Error="0.0">
-29.703 11.994 -2.649
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="2.489" EndFrequency="11.9" PeakHeight="375.85" Num="5" zHalfNm="264.826" Error="2.26">
-234.319 -25.447 16.924 -8.083 1.986
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="16.911" Depth="0.125"/>
<TopsideChapman PeakHeight="375.85" PeakDensity="1756947.9" PeakScaleHeight="80.548" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
