<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-01 -305 13:50:00.000"
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 33 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.44 Confidence: 65% PACIFIC flags: F2x cusp not found, Multiple candidates for F2o cusp, 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) 13:50:00</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">
FF202630511011350009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="11.100" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.627" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="29.163" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="8.650" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="8.650" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.400" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="400.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="400.000" 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="10.150" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="450.000" 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="3.357" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="8.650" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="8.650" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.345" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="335.464" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="224.147" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.506" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="143.776" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="51.385" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="77.915" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="176.660" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.390" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="50">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
400.000 405.000 405.000 405.000 407.000 409.000 411.000 413.000 415.000 420.000 420.000 420.000 420.000 425.000 425.000 430.000 430.000 430.000 435.000 435.000 440.000 440.000 440.000 445.000 445.000 445.000 450.000 450.000 450.000 450.000 450.000 460.000 460.000 465.000 470.000 470.000 475.000 480.000 485.000 490.000 495.000 500.000 510.000 515.000 523.489 533.157 544.267 557.168 572.332 590.411
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 48 0 0 0 0 0 0 45 0 0 0 0 0 0 54 0 54 0 48 57 60 54 57 57 60 57 0 57 0 54 57 57 54 57 54 54 54 54 54 51 51 51 48 45 45 42 45 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 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
</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" >
89.488 90.0 95.0 100.0 105.0 110.0 111.685 113.369 115.0 115.054 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 335.464 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.24 2.258 2.905 3.248 3.357 3.234 3.234 3.353 3.357 3.532 3.715 3.905 4.103 4.31 4.524 4.745 4.971 5.199 5.428 5.655 5.879 6.099 6.315 6.526 6.732 6.933 7.131 7.323 7.512 7.698 7.88 8.059 8.235 8.41 8.581 8.751 8.92 9.087 9.252 9.416 9.579 9.74 9.9 10.059 10.215 10.368 10.518 10.66 10.793 10.912 11.008 11.074 11.1 11.1 11.096 11.084 11.064 11.035 11.0 10.957 10.907 10.851 10.789 10.721 10.648 10.57 10.487 10.4 10.309 10.214 10.116 10.014 9.91 9.803 9.694 9.583 9.469 9.354 9.238 9.12 9.002 8.882 8.762 8.641 8.52 8.398 8.277 8.155 8.034 7.912 7.791 7.671 7.551 7.432 7.313 7.195 7.078 6.962 6.847 6.733 6.62 6.508 6.397 6.287 6.179 6.072 5.966 5.861 5.758 5.656 5.555 5.456 5.358 5.261 5.166 5.072 4.979 4.888 4.798 4.71 4.623 4.537 4.453 4.37 4.288 4.208 4.129 4.051 3.975 3.9 3.826 3.753 3.682 3.612 3.543 3.475 3.409 3.343 3.279 3.216 3.154 3.094 3.034 2.975 2.918 2.861 2.806 2.752 2.698 2.646 2.594 2.544 2.494 2.446 2.398 2.351 2.305 2.26 2.216 2.173 2.13 2.088 2.047 2.007 1.968 1.929 1.891 1.854 1.818 1.782 1.747 1.713 1.679 1.646 1.613 1.582 1.55 1.52 1.49 1.461 1.432 1.403 1.376 1.349 1.322 1.296 1.27

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.357" PeakHeight="110.0" Num="3" Error="0.0">
-30.477 13.116 -3.151
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.357" EndFrequency="11.1" PeakHeight="335.464" Num="5" zHalfNm="224.147" Error="2.897">
-197.432 -38.982 24.2 -10.138 1.942
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="5.054" Depth="0.123"/>
<TopsideChapman PeakHeight="335.464" PeakDensity="1528660.0" PeakScaleHeight="77.915" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
