<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-02 -306 18:30:00.000"
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 22 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.44 Confidence: 70% PACIFIC flags: 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) 18:30:00</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">
FF202630611021830009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="11.950" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.628" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="31.408" 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="12.250" 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="0.250" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="11.300" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="475.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="2.772" 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="342.611" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="243.120" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.889" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="133.902" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="54.103" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="70.478" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="155.480" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.460" 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" >
8.8 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 11.95
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
375.000 376.667 378.333 380.000 381.667 383.333 385.000 385.000 386.667 388.333 390.000 390.000 390.000 395.000 395.000 395.000 400.000 400.000 405.000 405.000 406.250 407.500 408.750 410.000 415.000 415.000 415.000 415.000 417.500 420.000 425.000 425.000 425.000 425.000 430.000 435.000 435.000 440.000 445.000 445.000 445.000 450.000 455.000 455.000 465.000 465.000 465.000 470.000 470.000 475.000 475.000 485.000 490.000 490.000 495.000 500.000 505.000 510.000 520.000 525.000 535.000 545.000 558.414 574.729
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 60 0 0 60 0 0 0 63 66 57 63 66 66 63 63 57 60 0 0 48 72 63 0 66 66 0 66 63 0 57 51 0 63 57 63 60 63 60 63 66 66 54 54 60 60 63 60 60 54 51 60 57 57 57 54 51 51 54 51 48 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 -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" >
89.587 90.0 95.0 100.0 105.0 110.0 114.263 115.0 118.526 120.0 122.789 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 342.611 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.234 1.862 2.4 2.682 2.772 2.65 2.65 2.65 2.692 2.772 2.855 3.043 3.236 3.437 3.648 3.871 4.105 4.35 4.604 4.865 5.13 5.397 5.663 5.926 6.185 6.44 6.69 6.935 7.175 7.41 7.642 7.869 8.093 8.314 8.531 8.747 8.959 9.17 9.379 9.586 9.791 9.995 10.197 10.398 10.596 10.792 10.984 11.17 11.35 11.518 11.67 11.797 11.892 11.943 11.95 11.949 11.937 11.915 11.883 11.84 11.788 11.728 11.659 11.582 11.498 11.407 11.31 11.207 11.099 10.986 10.868 10.747 10.622 10.493 10.361 10.227 10.091 9.953 9.813 9.671 9.529 9.385 9.241 9.097 8.952 8.807 8.663 8.519 8.375 8.231 8.089 7.947 7.806 7.667 7.528 7.391 7.255 7.12 6.987 6.856 6.726 6.597 6.47 6.345 6.222 6.1 5.98 5.862 5.746 5.631 5.518 5.407 5.298 5.191 5.085 4.981 4.879 4.779 4.681 4.584 4.489 4.396 4.304 4.215 4.127 4.04 3.955 3.872 3.79 3.71 3.632 3.555 3.48 3.406 3.333 3.262 3.193 3.125 3.058 2.992 2.928 2.865 2.804 2.744 2.685 2.627 2.57 2.515 2.461 2.407 2.355 2.305 2.255 2.206 2.158 2.111 2.066 2.021 1.977 1.934 1.892 1.851 1.811 1.771 1.733 1.695 1.658 1.622 1.587 1.552 1.518 1.485 1.453 1.421 1.39 1.36 1.33 1.301 1.273 1.245 1.218 1.191 1.165 1.14 1.115 1.09 1.067

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="2.772" PeakHeight="110.0" Num="3" Error="0.0">
-29.991 12.407 -2.829
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="2.772" EndFrequency="11.95" PeakHeight="342.611" Num="5" zHalfNm="243.12" Error="2.585">
-200.126 -34.343 22.761 -10.586 2.472
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="12.789" Depth="0.122"/>
<TopsideChapman PeakHeight="342.611" PeakDensity="1771743.1" PeakScaleHeight="70.478" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
