<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-01 -305 13:40:00.000"
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 22 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.44 Confidence: 70% PACIFIC flags: F2x cusp not found, 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) 13:40:00</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">
FF202630511011340009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="11.250" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.597" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="29.217" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="8.900" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="8.900" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.600" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="405.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="405.000" 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="10.100" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="445.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="3.346" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="8.900" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="8.900" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.340" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="356.394" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="230.088" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.445" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="171.100" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="62.236" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="93.584" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="187.940" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.830" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="48">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
8.9 8.95 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 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
405.000 410.000 410.000 411.000 412.000 413.000 414.000 415.000 415.000 420.000 420.000 425.000 425.000 425.000 430.000 430.000 435.000 437.500 440.000 445.000 445.000 450.000 450.000 455.000 445.000 450.000 455.000 460.000 460.000 465.000 470.000 475.000 475.000 480.000 490.000 495.000 505.000 510.000 515.000 524.357 535.242 548.063 563.386 582.023 605.180 634.727 673.734 727.608
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 63 0 57 0 0 0 63 66 66 60 63 66 60 60 57 0 45 48 54 51 51 45 51 57 57 54 57 57 57 54 57 57 60 57 51 54 51 48 51 51 45 45 0 45 0 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 2.734375
</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" >
89.491 90.0 95.0 100.0 105.0 110.0 111.733 113.466 115.0 115.199 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 356.394 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.24 2.251 2.896 3.237 3.346 3.223 3.223 3.332 3.346 3.504 3.676 3.855 4.041 4.232 4.428 4.629 4.832 5.038 5.247 5.456 5.667 5.878 6.089 6.3 6.511 6.72 6.929 7.137 7.343 7.547 7.75 7.951 8.15 8.347 8.541 8.732 8.92 9.105 9.285 9.462 9.634 9.801 9.962 10.117 10.265 10.406 10.538 10.662 10.775 10.879 10.971 11.051 11.118 11.172 11.212 11.238 11.249 11.25 11.248 11.241 11.227 11.208 11.184 11.154 11.119 11.079 11.035 10.986 10.933 10.877 10.816 10.752 10.684 10.613 10.539 10.463 10.383 10.302 10.217 10.131 10.043 9.953 9.861 9.768 9.673 9.577 9.48 9.382 9.283 9.183 9.083 8.982 8.88 8.778 8.676 8.574 8.471 8.368 8.266 8.163 8.061 7.959 7.857 7.755 7.654 7.553 7.453 7.353 7.254 7.156 7.058 6.961 6.864 6.768 6.673 6.579 6.486 6.393 6.301 6.21 6.12 6.031 5.943 5.855 5.769 5.684 5.599 5.515 5.433 5.351 5.27 5.191 5.112 5.034 4.957 4.881 4.806 4.732 4.659 4.587 4.516 4.446 4.377 4.308 4.241 4.175 4.109 4.045 3.981 3.918 3.856 3.795 3.735 3.676 3.617 3.56 3.503 3.447 3.392 3.338 3.284 3.232 3.18 3.129 3.078 3.029 2.98 2.932 2.884 2.838 2.792 2.747 2.702 2.659 2.615 2.573 2.531 2.49 2.45 2.41 2.37 2.332 2.294 2.256 2.22 2.183 2.148

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.346" PeakHeight="110.0" Num="3" Error="0.0">
-30.469 13.105 -3.145
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.346" EndFrequency="11.25" PeakHeight="356.394" Num="5" zHalfNm="230.088" Error="2.128">
-234.784 -10.614 6.196 -2.133 0.14
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="5.199" Depth="0.123"/>
<TopsideChapman PeakHeight="356.394" PeakDensity="1570254.4" PeakScaleHeight="93.584" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
