<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-03 -307 14:00:00.000"
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: 50% PACIFIC flags: F2x cusp not found, 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) 14:00:00</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">
FF202630711031400009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="11.700" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.794" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="32.689" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="9.200" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="9.200" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="12.000" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="370.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="370.000" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="11.300" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="445.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="3.364" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="9.200" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="9.200" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.349" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="304.150" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="211.077" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.566" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="120.085" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="47.354" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="64.290" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="148.150" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.350" 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" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
370.000 375.000 375.000 375.000 375.000 375.000 380.000 380.000 380.000 380.000 382.500 385.000 387.500 390.000 392.500 395.000 393.750 392.500 391.250 390.000 395.000 395.000 397.381 399.762 402.143 404.524 406.905 409.286 411.667 414.048 416.429 418.810 421.190 423.571 425.952 428.333 430.714 433.095 435.476 437.857 440.238 442.619 445.000 450.000 455.000 460.000 469.000 478.000 487.000 496.000 505.000
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
51 0 0 0 0 0 0 0 0 0 0 0 0 0 0 48 0 0 0 51 0 0 0 0 0 45 0 0 0 0 0 0 0 0 0 0 0 45 0 0 0 0 48 0 51 0 0 0 0 45 54
</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 1.171875 -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 -2.734375 0.390625 1.171875 0.390625 -1.171875 -1.953125 0.390625 -1.953125 1.171875 1.953125 0.390625 -0.390625 0.390625 -2.734375 0.390625 0.390625 -2.734375 0.390625 -1.953125 -1.953125 -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" >
89.487 90.0 95.0 100.0 105.0 110.0 111.656 113.313 114.969 115.0 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 304.15 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.24 2.263 2.911 3.254 3.364 3.241 3.241 3.364 3.365 3.587 3.81 4.042 4.285 4.542 4.811 5.092 5.379 5.669 5.957 6.239 6.515 6.783 7.042 7.292 7.535 7.772 8.001 8.226 8.445 8.66 8.871 9.079 9.284 9.487 9.689 9.889 10.087 10.285 10.482 10.678 10.872 11.064 11.249 11.422 11.57 11.671 11.7 11.7 11.691 11.669 11.634 11.588 11.531 11.464 11.387 11.301 11.207 11.105 10.997 10.882 10.761 10.635 10.504 10.368 10.229 10.087 9.942 9.794 9.645 9.493 9.34 9.186 9.032 8.877 8.721 8.566 8.411 8.256 8.102 7.949 7.797 7.646 7.496 7.347 7.2 7.055 6.911 6.769 6.629 6.49 6.354 6.219 6.087 5.956 5.828 5.702 5.578 5.455 5.336 5.218 5.102 4.988 4.877 4.768 4.66 4.555 4.452 4.351 4.252 4.155 4.06 3.967 3.875 3.786 3.699 3.613 3.53 3.448 3.367 3.289 3.212 3.137 3.064 2.992 2.922 2.854 2.787 2.721 2.657 2.594 2.533 2.473 2.415 2.358 2.302 2.248 2.194 2.142 2.091 2.042 1.993 1.946 1.9 1.854 1.81 1.767 1.725 1.684 1.644 1.605 1.566 1.529 1.493 1.457 1.422 1.388 1.355 1.323 1.291 1.26 1.23 1.201 1.172 1.144 1.117 1.09 1.064 1.038 1.013 0.989 0.965 0.942 0.92 0.898 0.876 0.855 0.835 0.815 0.795 0.776 0.757 0.739 0.722 0.704 0.687 0.671 0.655

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.364" PeakHeight="110.0" Num="3" Error="0.0">
-30.482 13.123 -3.154
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.364" EndFrequency="11.7" PeakHeight="304.15" Num="5" zHalfNm="211.077" Error="3.04">
-167.14 -37.786 24.224 -10.995 2.516
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="4.969" Depth="0.123"/>
<TopsideChapman PeakHeight="304.15" PeakDensity="1698387.1" PeakScaleHeight="64.29" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
