<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-02 -306 15:50:00.000"
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" >
2026.11.02 (306) 15:50:00</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">
FF202630611021550009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="11.350" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.657" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="30.157" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="9.500" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="9.500" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.650" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="425.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="425.000" 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="10.850" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="477.351" 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="9.500" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="9.500" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.334" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="326.818" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="219.797" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.155" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="140.052" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="51.865" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="75.475" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="166.090" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.480" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="38">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
425.000 425.000 425.000 425.000 430.000 430.000 430.000 430.000 430.000 435.000 430.000 435.000 440.000 440.000 440.000 440.000 442.500 445.000 450.000 450.000 455.000 455.000 460.000 465.000 465.000 470.000 473.468 477.351 481.731 486.708 492.413 499.019 506.757 515.946 527.036 540.685 557.895 580.267
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
48 0 0 63 51 54 60 63 63 60 60 54 60 60 57 60 0 57 54 60 57 54 54 51 54 54 54 45 51 51 51 48 48 48 45 45 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 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 95.0 100.0 105.0 110.0 111.79 113.58 115.0 115.37 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 326.818 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.24 2.242 2.884 3.223 3.332 3.209 3.209 3.307 3.332 3.516 3.711 3.908 4.111 4.322 4.542 4.771 5.008 5.251 5.499 5.748 5.997 6.244 6.486 6.724 6.956 7.182 7.403 7.618 7.828 8.034 8.235 8.432 8.626 8.816 9.003 9.188 9.369 9.549 9.726 9.9 10.072 10.242 10.408 10.57 10.726 10.875 11.014 11.137 11.239 11.311 11.347 11.35 11.348 11.337 11.317 11.289 11.252 11.208 11.156 11.097 11.031 10.96 10.882 10.799 10.711 10.619 10.522 10.421 10.316 10.208 10.097 9.984 9.867 9.749 9.629 9.507 9.383 9.258 9.132 9.006 8.878 8.75 8.622 8.494 8.366 8.237 8.109 7.982 7.854 7.728 7.602 7.477 7.352 7.229 7.106 6.985 6.865 6.745 6.628 6.511 6.395 6.281 6.169 6.057 5.948 5.839 5.732 5.626 5.522 5.42 5.319 5.219 5.121 5.024 4.929 4.835 4.743 4.652 4.563 4.475 4.389 4.304 4.221 4.139 4.058 3.979 3.901 3.825 3.75 3.676 3.604 3.533 3.463 3.394 3.327 3.261 3.196 3.133 3.07 3.009 2.949 2.89 2.832 2.776 2.72 2.665 2.612 2.559 2.508 2.458 2.408 2.359 2.312 2.265 2.219 2.175 2.131 2.088 2.045 2.004 1.963 1.924 1.885 1.846 1.809 1.772 1.736 1.701 1.666 1.632 1.599 1.567 1.535 1.504 1.473 1.443 1.414 1.385 1.357 1.329 1.302 1.275 1.249 1.224 1.199 1.174 1.15

</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="11.35" PeakHeight="326.818" Num="5" zHalfNm="219.797" Error="3.554">
-192.576 -32.023 20.282 -9.643 2.512
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="5.37" Depth="0.123"/>
<TopsideChapman PeakHeight="326.818" PeakDensity="1598294.0" PeakScaleHeight="75.475" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
