<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-01 -305 15:20:00.000"
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" >
2026.11.01 (305) 15:20:00</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">
FF202630511011520009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="10.050" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.625" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="26.386" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="9.000" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="9.000" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="10.350" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="455.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="455.000" 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="0.250" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="9.800" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="501.442" 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="3.368" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="9.000" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="9.000" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.350" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="311.591" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="204.156" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.996" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="137.170" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="40.027" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="74.377" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="166.580" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.450" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="22">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
455.000 460.000 463.333 466.667 470.000 473.333 476.667 480.000 480.000 480.000 485.000 490.000 491.725 493.676 495.901 498.463 501.442 504.952 509.146 514.248 520.587 528.676
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
45 0 0 0 0 0 0 48 0 48 63 57 66 63 66 66 66 63 66 66 66 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 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" >
89.487 90.0 95.0 100.0 105.0 110.0 111.643 113.285 114.928 115.0 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 311.591 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.24 2.266 2.915 3.258 3.368 3.245 3.245 3.368 3.371 3.579 3.765 3.947 4.131 4.321 4.52 4.73 4.949 5.178 5.412 5.648 5.882 6.111 6.333 6.546 6.751 6.948 7.138 7.32 7.497 7.667 7.833 7.995 8.152 8.306 8.457 8.606 8.752 8.896 9.038 9.178 9.316 9.452 9.584 9.71 9.828 9.931 10.008 10.047 10.05 10.048 10.038 10.019 9.993 9.959 9.918 9.871 9.817 9.757 9.692 9.621 9.546 9.466 9.382 9.294 9.202 9.107 9.009 8.909 8.806 8.701 8.594 8.485 8.375 8.263 8.151 8.037 7.923 7.808 7.693 7.578 7.463 7.347 7.232 7.117 7.003 6.889 6.775 6.663 6.551 6.439 6.329 6.22 6.111 6.004 5.898 5.792 5.688 5.586 5.484 5.384 5.285 5.187 5.091 4.996 4.902 4.81 4.719 4.629 4.541 4.454 4.368 4.284 4.201 4.12 4.039 3.961 3.883 3.807 3.732 3.658 3.586 3.515 3.445 3.377 3.31 3.244 3.179 3.115 3.053 2.991 2.931 2.872 2.814 2.758 2.702 2.647 2.593 2.541 2.489 2.439 2.389 2.34 2.293 2.246 2.2 2.155 2.111 2.068 2.026 1.984 1.943 1.904 1.865 1.826 1.789 1.752 1.716 1.681 1.646 1.612 1.579 1.546 1.515 1.483 1.453 1.423 1.393 1.365 1.336 1.309 1.282 1.255 1.229 1.204 1.179 1.155 1.131 1.107 1.084 1.062 1.04 1.018 0.997 0.977 0.956 0.937 0.917

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.368" PeakHeight="110.0" Num="3" Error="0.0">
-30.485 13.128 -3.156
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.368" EndFrequency="10.05" PeakHeight="311.591" Num="5" zHalfNm="204.156" Error="7.107">
-176.745 -34.14 22.173 -11.757 3.806
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="4.928" Depth="0.123"/>
<TopsideChapman PeakHeight="311.591" PeakDensity="1253132.8" PeakScaleHeight="74.377" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
