<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-01 -305 13:30:00.000"
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: 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) 13:30:00</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">
FF202630511011330009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="11.050" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.617" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="28.915" 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="11.350" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="410.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="410.000" 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="10.200" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="460.000" 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="3.332" 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="4.334" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="342.996" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="227.534" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.383" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="150.941" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="53.462" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="82.146" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="181.090" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.470" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="51">
<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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
410.000 411.250 412.500 413.750 415.000 415.000 415.000 415.000 420.000 420.000 420.000 420.000 420.000 423.333 426.667 430.000 430.000 430.000 430.000 435.000 435.000 440.000 440.000 445.000 445.000 450.000 450.000 452.500 455.000 455.000 455.000 455.000 460.000 460.000 470.000 475.000 475.000 480.000 485.000 490.000 495.000 500.000 506.358 513.689 522.232 532.318 544.404 559.151 577.547 601.138 632.485
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
48 0 0 0 48 0 0 57 45 54 57 0 63 0 0 48 57 60 60 57 63 57 60 54 63 60 57 0 51 51 0 0 0 45 45 45 51 48 51 54 51 54 51 51 48 51 54 51 0 45 42
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-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 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" >
89.493 90.0 95.0 100.0 105.0 110.0 111.79 113.58 115.0 115.37 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 342.996 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.24 2.242 2.884 3.223 3.332 3.209 3.209 3.307 3.332 3.487 3.663 3.848 4.041 4.243 4.451 4.664 4.88 5.099 5.317 5.534 5.749 5.961 6.171 6.376 6.578 6.777 6.972 7.164 7.352 7.538 7.722 7.902 8.081 8.257 8.432 8.604 8.775 8.944 9.111 9.277 9.441 9.603 9.763 9.92 10.074 10.225 10.37 10.51 10.64 10.759 10.864 10.949 11.011 11.044 11.05 11.049 11.042 11.028 11.006 10.977 10.942 10.9 10.852 10.799 10.74 10.676 10.607 10.534 10.457 10.375 10.29 10.202 10.11 10.016 9.918 9.819 9.717 9.613 9.507 9.4 9.291 9.181 9.07 8.958 8.845 8.731 8.617 8.503 8.388 8.273 8.158 8.043 7.929 7.815 7.701 7.587 7.474 7.362 7.25 7.139 7.028 6.919 6.81 6.703 6.596 6.49 6.385 6.281 6.179 6.077 5.977 5.878 5.779 5.682 5.587 5.492 5.399 5.307 5.216 5.126 5.037 4.95 4.864 4.779 4.696 4.614 4.532 4.453 4.374 4.296 4.22 4.145 4.071 3.998 3.927 3.856 3.787 3.719 3.651 3.585 3.521 3.457 3.394 3.332 3.272 3.212 3.153 3.096 3.039 2.983 2.929 2.875 2.822 2.77 2.719 2.669 2.62 2.572 2.524 2.477 2.432 2.387 2.342 2.299 2.256 2.214 2.173 2.133 2.093 2.054 2.016 1.979 1.942 1.906 1.87 1.835 1.801 1.767 1.734 1.702 1.67 1.639 1.608 1.578 1.549 1.52 1.491

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.332" PeakHeight="110.0" Num="3" Error="0.0">
-30.459 13.09 -3.138
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.332" EndFrequency="11.05" PeakHeight="342.996" Num="5" zHalfNm="227.534" Error="2.571">
-207.951 -33.193 20.181 -7.867 1.204
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="5.37" Depth="0.123"/>
<TopsideChapman PeakHeight="342.996" PeakDensity="1514919.4" PeakScaleHeight="82.146" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
