<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-02 -306 16:40:00.000"
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: 50% PACIFIC flags: F2x cusp not found, 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) 16:40:00</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">
FF202630611021640009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="11.700" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.683" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="31.392" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="8.550" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="8.550" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="12.000" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="380.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="380.000" 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="0.200" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="11.000" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="455.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="3.230" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="8.550" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="8.550" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.286" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="329.836" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="228.835" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.449" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="131.773" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="52.220" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="70.812" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="163.020" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.340" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="64">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 11.5 11.55 11.6 11.65 11.7
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
380.000 380.000 381.000 382.000 383.000 384.000 385.000 385.000 387.000 389.000 391.000 393.000 395.000 395.000 395.000 397.500 400.000 400.000 400.000 400.000 400.000 405.000 405.000 405.000 405.000 405.000 415.000 410.000 411.667 413.333 415.000 415.000 420.000 420.000 420.000 422.500 425.000 425.000 430.000 430.000 435.000 435.000 435.000 437.500 440.000 450.000 445.000 450.000 455.000 455.000 465.000 465.000 470.000 475.000 480.000 485.000 490.000 495.000 505.000 510.000 520.000 530.000 545.000 563.571
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 45 0 0 0 0 0 0 0 0 0 51 0 0 0 63 66 63 63 57 42 54 51 0 51 48 51 51 0 54 48 0 60 45 57 51 57 57 54 0 54 0 51 51 54 54 51 51 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 -1.953125 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 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
</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" >
89.508 90.0 95.0 100.0 105.0 110.0 112.216 114.431 115.0 116.647 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 329.836 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.239 2.172 2.795 3.125 3.23 3.108 3.108 3.139 3.23 3.353 3.546 3.753 3.973 4.204 4.446 4.694 4.945 5.198 5.448 5.696 5.939 6.177 6.41 6.638 6.861 7.08 7.295 7.506 7.713 7.918 8.12 8.319 8.517 8.713 8.907 9.101 9.293 9.484 9.675 9.865 10.054 10.243 10.431 10.618 10.802 10.983 11.158 11.322 11.47 11.592 11.672 11.7 11.7 11.694 11.677 11.65 11.613 11.567 11.511 11.448 11.377 11.298 11.213 11.121 11.024 10.921 10.813 10.701 10.584 10.464 10.341 10.214 10.085 9.953 9.819 9.683 9.546 9.408 9.269 9.129 8.988 8.847 8.706 8.565 8.424 8.284 8.144 8.005 7.866 7.728 7.592 7.456 7.321 7.188 7.056 6.925 6.796 6.668 6.542 6.418 6.295 6.173 6.053 5.935 5.819 5.704 5.592 5.48 5.371 5.263 5.158 5.053 4.951 4.85 4.751 4.654 4.559 4.465 4.373 4.282 4.194 4.107 4.021 3.937 3.855 3.774 3.695 3.617 3.541 3.466 3.393 3.321 3.251 3.182 3.115 3.048 2.984 2.92 2.858 2.797 2.737 2.678 2.621 2.565 2.51 2.456 2.403 2.352 2.301 2.252 2.203 2.156 2.109 2.064 2.019 1.976 1.933 1.891 1.85 1.81 1.771 1.733 1.695 1.658 1.623 1.587 1.553 1.519 1.486 1.454 1.422 1.392 1.361 1.332 1.303 1.275 1.247 1.22 1.193 1.167 1.142 1.117 1.093 1.069 1.046 1.023 1.001

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.23" PeakHeight="110.0" Num="3" Error="0.0">
-30.381 12.975 -3.086
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.23" EndFrequency="11.7" PeakHeight="329.836" Num="5" zHalfNm="228.835" Error="2.392">
-189.107 -40.932 25.08 -9.631 1.401
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="6.647" Depth="0.122"/>
<TopsideChapman PeakHeight="329.836" PeakDensity="1698387.1" PeakScaleHeight="70.812" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
