<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-01 -305 16:50:00.000"
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) 16:50:00</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">
FF202630511011650009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="11.600" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.551" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="29.594" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="9.800" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="9.800" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.900" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="430.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="430.000" 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="10.300" 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="3.204" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="9.800" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="9.800" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.273" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="357.034" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="235.989" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.510" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="162.661" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="62.391" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="87.612" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="182.130" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.690" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="37">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
430.000 432.500 435.000 440.000 440.000 440.000 440.000 445.000 445.000 450.000 450.000 455.000 460.000 465.000 465.000 470.000 475.000 480.000 485.000 490.000 495.000 505.000 505.000 510.000 515.000 525.000 530.000 537.012 544.712 553.207 562.627 573.132 584.920 598.243 613.419 630.866 651.134
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
48 54 48 0 60 57 60 57 0 0 54 57 57 0 54 57 57 54 57 57 45 45 54 48 51 51 51 51 51 51 51 51 48 45 45 45 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
</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" >
89.512 90.0 95.0 100.0 105.0 110.0 112.327 114.654 115.0 116.981 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 357.034 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.239 2.155 2.773 3.1 3.204 3.082 3.082 3.1 3.204 3.314 3.493 3.671 3.85 4.035 4.224 4.421 4.624 4.834 5.051 5.273 5.499 5.729 5.96 6.192 6.422 6.651 6.878 7.101 7.321 7.537 7.749 7.958 8.162 8.363 8.561 8.755 8.945 9.133 9.316 9.497 9.674 9.848 10.018 10.184 10.346 10.503 10.655 10.801 10.939 11.07 11.19 11.299 11.395 11.475 11.536 11.578 11.598 11.6 11.599 11.591 11.576 11.554 11.526 11.492 11.452 11.407 11.356 11.3 11.239 11.174 11.104 11.031 10.953 10.872 10.788 10.7 10.61 10.517 10.422 10.324 10.224 10.122 10.018 9.913 9.807 9.699 9.59 9.48 9.37 9.258 9.147 9.034 8.922 8.809 8.696 8.583 8.47 8.357 8.244 8.132 8.02 7.909 7.798 7.687 7.577 7.468 7.36 7.252 7.145 7.039 6.934 6.83 6.726 6.624 6.523 6.422 6.323 6.225 6.127 6.031 5.936 5.842 5.749 5.658 5.567 5.478 5.389 5.302 5.216 5.131 5.047 4.964 4.883 4.802 4.723 4.645 4.568 4.492 4.417 4.343 4.271 4.199 4.128 4.059 3.99 3.923 3.857 3.791 3.727 3.664 3.601 3.54 3.479 3.42 3.361 3.304 3.247 3.192 3.137 3.083 3.03 2.977 2.926 2.876 2.826 2.777 2.729 2.682 2.635 2.59 2.545 2.5 2.457 2.414 2.372 2.331 2.29 2.25 2.211 2.173 2.135 2.097 2.061 2.025 1.989 1.955 1.92

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.204" PeakHeight="110.0" Num="3" Error="0.0">
-30.361 12.945 -3.072
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.204" EndFrequency="11.6" PeakHeight="357.034" Num="5" zHalfNm="235.989" Error="3.306">
-227.352 -21.679 13.963 -7.17 2.185
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="6.981" Depth="0.122"/>
<TopsideChapman PeakHeight="357.034" PeakDensity="1669478.9" PeakScaleHeight="87.612" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
