<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-03 -307 17:30:00.000"
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 44 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.44 Confidence: 45% PACIFIC flags: F2x cusp not found, Multiple candidates for F2o cusp, 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" >
2026.11.03 (307) 17:30:00</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">
FF202630711031730009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="12.200" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.962" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="36.130" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="9.050" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="9.050" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="12.500" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="345.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="345.000" 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="0.300" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="11.800" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="407.470" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="3.066" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="9.050" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="9.050" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.206" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="289.425" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="212.509" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.731" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="100.699" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="42.915" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="53.015" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="124.880" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.290" 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" >
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 12.0 12.05 12.1 12.15 12.2
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
345.000 345.000 345.000 345.000 345.000 350.000 350.000 350.000 350.000 350.000 352.500 355.000 355.000 355.000 355.000 355.000 355.000 360.000 360.000 360.000 360.000 360.000 360.000 360.000 360.000 360.000 362.500 365.000 367.500 370.000 370.000 370.000 370.000 370.000 370.000 370.000 370.000 370.000 375.000 375.000 375.000 380.000 380.000 380.000 385.000 385.000 385.000 390.000 390.000 395.000 395.000 400.000 400.000 402.201 404.673 407.470 410.659 414.329 418.599 423.629 429.640 436.950 446.034 457.625
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
60 54 0 54 48 0 0 69 0 0 0 0 0 0 0 69 69 66 60 66 63 63 63 0 63 60 0 0 0 51 0 0 45 63 63 60 63 60 63 57 57 60 60 60 57 60 54 57 60 63 63 60 63 60 63 57 57 0 63 57 60 60 42 0
</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 1.171875
</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" >
89.535 90.0 95.0 100.0 105.0 110.0 112.923 115.0 115.847 118.77 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 289.425 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.237 2.061 2.654 2.966 3.066 2.944 2.944 2.944 3.066 3.124 3.368 3.627 3.907 4.208 4.529 4.865 5.207 5.549 5.886 6.213 6.529 6.836 7.132 7.419 7.698 7.97 8.236 8.497 8.754 9.008 9.259 9.509 9.757 10.005 10.252 10.501 10.75 11.001 11.252 11.502 11.746 11.971 12.142 12.2 12.2 12.187 12.155 12.104 12.035 11.951 11.852 11.74 11.616 11.48 11.335 11.181 11.018 10.849 10.674 10.494 10.31 10.122 9.931 9.738 9.543 9.347 9.151 8.955 8.758 8.563 8.369 8.176 7.984 7.795 7.607 7.422 7.24 7.06 6.883 6.709 6.537 6.369 6.204 6.042 5.883 5.728 5.576 5.427 5.281 5.139 4.999 4.863 4.73 4.601 4.474 4.351 4.23 4.113 3.999 3.887 3.778 3.672 3.569 3.469 3.371 3.276 3.183 3.093 3.005 2.92 2.837 2.756 2.677 2.601 2.527 2.454 2.384 2.316 2.25 2.185 2.122 2.061 2.002 1.944 1.888 1.834 1.781 1.73 1.68 1.632 1.584 1.539 1.494 1.451 1.409 1.368 1.329 1.29 1.253 1.217 1.182 1.147 1.114 1.082 1.051 1.02 0.991 0.962 0.934 0.907 0.881 0.855 0.83 0.806 0.783 0.76 0.738 0.717 0.696 0.676 0.656 0.637 0.619 0.601 0.583 0.566 0.55 0.534 0.518 0.503 0.489 0.475 0.461 0.447 0.434 0.422 0.41 0.398 0.386 0.375 0.364 0.353 0.343 0.333 0.324 0.314 0.305

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.066" PeakHeight="110.0" Num="3" Error="0.0">
-30.25 12.783 -2.998
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.066" EndFrequency="12.2" PeakHeight="289.425" Num="5" zHalfNm="212.509" Error="2.711">
-148.565 -38.081 24.508 -10.582 2.065
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="8.77" Depth="0.122"/>
<TopsideChapman PeakHeight="289.425" PeakDensity="1846650.1" PeakScaleHeight="53.015" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
