<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-01 -305 14:20:00.000"
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: F2x cusp not found, 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" >
2026.11.01 (305) 14:20:00</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">
FF202630511011420009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="11.000" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.543" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="27.976" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="9.000" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="9.000" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.300" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="430.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="430.000" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="10.000" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="470.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="3.380" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="9.000" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="9.000" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.356" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="357.916" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="229.038" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.683" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="171.657" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="59.648" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="93.472" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="194.370" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.690" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="41">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
430.000 430.000 435.000 435.000 437.500 440.000 440.000 440.000 445.000 445.000 450.000 450.000 455.000 460.000 460.000 465.000 465.000 467.500 470.000 470.000 470.000 475.000 485.000 485.000 490.000 495.000 505.000 505.000 510.000 520.000 525.000 535.000 540.000 550.000 560.000 573.430 589.256 608.184 631.223 659.878 696.484
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
51 60 48 54 0 54 45 66 60 54 63 54 63 60 63 63 60 60 60 48 0 57 0 57 54 54 0 54 54 57 54 54 54 51 48 51 45 45 42 42 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 -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
</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" >
89.485 90.0 95.0 100.0 105.0 110.0 111.593 113.187 114.78 115.0 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 357.916 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.241 2.274 2.925 3.27 3.38 3.257 3.257 3.38 3.387 3.554 3.722 3.893 4.068 4.248 4.433 4.624 4.819 5.019 5.222 5.428 5.635 5.843 6.05 6.257 6.461 6.663 6.863 7.059 7.252 7.443 7.63 7.813 7.994 8.171 8.346 8.517 8.686 8.851 9.014 9.173 9.329 9.482 9.632 9.778 9.919 10.056 10.188 10.314 10.433 10.545 10.648 10.74 10.821 10.889 10.941 10.978 10.997 11.0 10.999 10.994 10.983 10.965 10.943 10.915 10.883 10.845 10.803 10.757 10.706 10.651 10.593 10.531 10.466 10.397 10.326 10.252 10.175 10.095 10.014 9.93 9.844 9.756 9.667 9.576 9.484 9.39 9.295 9.2 9.103 9.005 8.907 8.808 8.709 8.609 8.509 8.409 8.309 8.208 8.108 8.007 7.907 7.807 7.707 7.608 7.509 7.41 7.312 7.214 7.117 7.02 6.924 6.829 6.734 6.64 6.547 6.454 6.363 6.272 6.182 6.093 6.004 5.917 5.83 5.745 5.66 5.576 5.493 5.411 5.33 5.25 5.17 5.092 5.015 4.938 4.863 4.788 4.715 4.642 4.571 4.5 4.43 4.361 4.293 4.226 4.16 4.095 4.03 3.967 3.905 3.843 3.782 3.722 3.663 3.605 3.548 3.491 3.435 3.38 3.326 3.273 3.221 3.169 3.118 3.068 3.018 2.97 2.922 2.875 2.828 2.783 2.738 2.693 2.649 2.607 2.564 2.523 2.482 2.441 2.401 2.362 2.324 2.286 2.249 2.212 2.176 2.14 2.105

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.38" PeakHeight="110.0" Num="3" Error="0.0">
-30.493 13.14 -3.162
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.38" EndFrequency="11.0" PeakHeight="357.916" Num="5" zHalfNm="229.038" Error="2.566">
-231.357 -20.248 13.128 -6.213 1.554
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="4.78" Depth="0.123"/>
<TopsideChapman PeakHeight="357.916" PeakDensity="1501240.8" PeakScaleHeight="93.472" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
