<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-02 -306 20:20:00.000"
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 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" >
2026.11.02 (306) 20:20:00</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">
FF202630611022020009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="11.550" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.368" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="27.350" 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="11.850" 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="0.150" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="10.850" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="555.000" 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="1.631" 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="/" />
<URSI ID="92" Val="421.180" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="309.472" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.439" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="158.287" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="58.201" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="81.966" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="167.390" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.750" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="54">
<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 11.3 11.35 11.4 11.45 11.5 11.55
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
455.000 455.000 460.000 460.000 460.000 465.000 465.000 470.000 470.000 470.000 470.000 472.500 475.000 480.000 480.000 482.500 485.000 485.000 486.667 488.333 490.000 500.000 505.000 505.000 505.000 505.000 515.000 520.000 520.000 525.000 525.000 530.000 530.000 535.000 540.000 540.000 550.000 550.000 555.000 555.000 565.000 570.000 575.000 585.000 590.000 595.000 603.312 612.542 622.849 634.435 647.553 662.528 679.785 699.889
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 54 0 0 0 0 0 0 66 63 0 60 66 63 0 0 63 0 0 48 63 60 60 54 0 54 54 54 54 54 54 51 51 51 48 45 51 54 54 54 54 51 45 45 48 45 45 42 45 0 0 39 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 1.953125 -0.390625 -0.390625 -0.390625 2.734375 -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 -1.171875 -1.171875 -1.171875 -0.390625 -0.390625 -1.171875 -1.171875 -1.171875 -1.171875 -0.390625 -1.171875 -1.171875 -1.171875 -0.390625 -1.171875 -1.171875 -1.171875 -0.390625 -1.171875 -1.171875
</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" >
89.882 90.0 95.0 100.0 105.0 110.0 115.0 120.0 120.387 125.0 130.0 130.774 135.0 140.0 141.161 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 421.18 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.21 1.091 1.413 1.579 1.631 1.599 1.5 1.489 1.489 1.489 1.489 1.547 1.615 1.631 1.729 1.854 1.979 2.108 2.241 2.38 2.525 2.678 2.839 3.008 3.186 3.371 3.565 3.766 3.974 4.187 4.405 4.626 4.851 5.077 5.304 5.531 5.758 5.985 6.212 6.437 6.661 6.884 7.105 7.325 7.544 7.761 7.976 8.19 8.401 8.611 8.819 9.024 9.227 9.427 9.624 9.817 10.006 10.19 10.368 10.54 10.704 10.858 11.001 11.132 11.249 11.349 11.431 11.492 11.532 11.549 11.55 11.548 11.537 11.519 11.493 11.461 11.421 11.375 11.322 11.264 11.201 11.132 11.058 10.979 10.897 10.81 10.719 10.625 10.528 10.428 10.325 10.22 10.112 10.002 9.891 9.778 9.663 9.547 9.43 9.313 9.194 9.075 8.955 8.835 8.715 8.595 8.474 8.354 8.234 8.115 7.996 7.877 7.759 7.641 7.524 7.408 7.293 7.179 7.066 6.953 6.842 6.732 6.622 6.514 6.407 6.301 6.197 6.093 5.991 5.89 5.79 5.692 5.595 5.499 5.404 5.311 5.219 5.128 5.039 4.951 4.864 4.778 4.694 4.611 4.529 4.448 4.369 4.291 4.214 4.139 4.064 3.991 3.919 3.848 3.779 3.71 3.643 3.577 3.512 3.447 3.385 3.323 3.262 3.202 3.143 3.086 3.029 2.973 2.918 2.864 2.812 2.76 2.709 2.659 2.609 2.561 2.513 2.467 2.421 2.376 2.332 2.288 2.246 2.204 2.163 2.123 2.083

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="1.631" PeakHeight="110.0" Num="3" Error="0.0">
-28.413 10.254 -1.959
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="1.631" EndFrequency="11.55" PeakHeight="421.18" Num="5" zHalfNm="309.472" Error="3.329">
-267.581 -21.823 14.708 -8.084 2.761
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="31.161" Depth="0.142"/>
<TopsideChapman PeakHeight="421.18" PeakDensity="1655117.9" PeakScaleHeight="81.966" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
