<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-02 -306 17:10:00.000"
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 44 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.44 Confidence: 45% PACIFIC flags: F2x cusp not found, Multiple candidates for F2o cusp, One of F2 cusps was derived from the other, Unidentified traces above foF2</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) 17:10:00</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">
FF202630611021710009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="11.450" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.742" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="31.399" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="8.250" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="8.250" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.950" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="375.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="375.000" 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="0.450" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="11.150" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="465.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="3.141" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="8.250" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="8.250" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.243" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="320.032" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="227.519" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.627" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="118.898" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="45.483" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="63.716" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="154.000" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.210" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="65">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 11.4 11.45
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
375.000 380.000 380.000 380.833 381.667 382.500 383.333 384.167 385.000 385.000 385.000 385.000 390.000 390.000 390.000 390.000 390.000 390.000 392.500 395.000 395.000 395.000 400.000 401.667 403.333 405.000 406.667 408.333 410.000 405.000 410.000 410.000 410.000 412.500 415.000 415.000 415.000 415.000 415.000 425.000 425.000 425.000 425.000 430.000 430.000 430.000 435.000 435.000 440.000 440.000 445.000 445.000 450.000 450.000 455.000 455.000 460.000 465.000 465.000 470.000 475.000 482.786 492.721 505.837 523.952
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 0 0 0 0 0 0 0 0 54 0 0 0 0 57 54 0 66 0 0 66 0 0 0 0 0 0 63 63 0 66 0 0 0 0 0 48 60 60 0 57 60 57 60 57 60 54 57 57 51 57 0 54 0 60 45 66 66 66 57 0 0 42
</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 1.953125 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 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 -1.953125 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" >
89.522 90.0 95.0 100.0 105.0 110.0 112.6 115.0 115.199 117.799 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 320.032 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.238 2.112 2.719 3.039 3.141 3.019 3.019 3.019 3.141 3.221 3.415 3.627 3.857 4.103 4.359 4.621 4.883 5.142 5.396 5.643 5.884 6.117 6.344 6.566 6.782 6.993 7.2 7.404 7.605 7.803 7.998 8.192 8.385 8.577 8.768 8.958 9.149 9.34 9.532 9.724 9.918 10.113 10.31 10.508 10.706 10.903 11.093 11.266 11.398 11.45 11.45 11.443 11.424 11.391 11.347 11.293 11.227 11.153 11.069 10.977 10.877 10.77 10.657 10.538 10.414 10.285 10.151 10.014 9.874 9.73 9.584 9.437 9.287 9.136 8.984 8.831 8.678 8.525 8.371 8.218 8.066 7.914 7.762 7.612 7.463 7.315 7.169 7.024 6.881 6.739 6.599 6.461 6.325 6.19 6.058 5.927 5.799 5.673 5.549 5.427 5.307 5.189 5.073 4.959 4.848 4.738 4.631 4.526 4.423 4.321 4.222 4.125 4.03 3.937 3.846 3.757 3.669 3.584 3.5 3.418 3.338 3.26 3.183 3.108 3.035 2.963 2.893 2.825 2.758 2.692 2.629 2.566 2.505 2.445 2.387 2.33 2.275 2.22 2.167 2.115 2.065 2.015 1.967 1.92 1.874 1.829 1.785 1.742 1.7 1.659 1.62 1.581 1.543 1.505 1.469 1.434 1.399 1.366 1.333 1.301 1.269 1.239 1.209 1.18 1.151 1.123 1.096 1.07 1.044 1.019 0.994 0.97 0.947 0.924 0.901 0.88 0.858 0.838 0.817 0.798 0.778 0.759 0.741 0.723 0.706 0.689 0.672

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.141" PeakHeight="110.0" Num="3" Error="0.0">
-30.311 12.872 -3.039
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.141" EndFrequency="11.45" PeakHeight="320.032" Num="5" zHalfNm="227.519" Error="2.325">
-173.386 -48.976 29.632 -10.818 1.315
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="7.799" Depth="0.122"/>
<TopsideChapman PeakHeight="320.032" PeakDensity="1626581.9" PeakScaleHeight="63.716" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
