<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-02 -306 19:50:00.000"
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 44 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.44 Confidence: 50% PACIFIC flags: F2x cusp not found, 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" >
2026.11.02 (306) 19:50:00</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">
FF202630611021950009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="11.600" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.441" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="28.321" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="8.750" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="8.750" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.900" 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="0.200" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="10.650" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="510.000" 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="2.086" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="8.750" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="8.750" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="392.486" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="284.455" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.642" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="150.014" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="56.198" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="77.894" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="165.930" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.580" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="58">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
8.75 8.8 8.85 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 11.6
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
425.000 430.000 432.500 435.000 437.500 440.000 440.000 440.000 440.000 442.500 445.000 450.000 450.000 450.000 452.857 455.714 458.571 461.429 464.286 467.143 470.000 470.000 470.000 475.000 480.000 475.000 480.000 485.000 485.000 485.000 490.000 495.000 495.000 495.000 500.000 505.000 505.000 510.000 510.000 515.000 520.000 525.000 530.000 535.000 535.000 545.000 550.000 550.000 560.000 565.000 570.000 575.000 583.154 592.660 603.887 617.346 633.779 654.291
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 0 0 0 0 0 0 0 0 0 0 51 0 0 0 0 0 0 0 60 0 0 51 57 0 60 60 57 57 57 54 54 54 51 0 0 54 54 57 57 54 54 51 51 51 51 48 48 51 51 51 48 48 42 45 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 2.734375 -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 -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 -1.171875 -1.171875 -0.390625 -1.171875 -1.171875 -1.171875 -0.390625 -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" >
89.737 90.0 95.0 100.0 105.0 110.0 115.0 117.739 120.0 125.0 125.477 130.0 133.216 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 392.486 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.223 1.399 1.806 2.019 2.086 2.032 1.955 1.955 1.955 1.955 2.032 2.086 2.139 2.285 2.431 2.58 2.734 2.895 3.064 3.242 3.429 3.625 3.829 4.042 4.261 4.485 4.713 4.943 5.174 5.405 5.635 5.863 6.089 6.313 6.535 6.754 6.97 7.185 7.397 7.607 7.815 8.021 8.225 8.427 8.628 8.827 9.024 9.22 9.414 9.607 9.797 9.985 10.17 10.352 10.53 10.702 10.867 11.024 11.169 11.299 11.411 11.501 11.564 11.596 11.6 11.599 11.59 11.572 11.545 11.511 11.469 11.42 11.364 11.302 11.233 11.159 11.079 10.995 10.906 10.812 10.714 10.613 10.508 10.4 10.29 10.176 10.061 9.943 9.824 9.703 9.58 9.457 9.332 9.206 9.08 8.954 8.827 8.7 8.573 8.446 8.319 8.192 8.066 7.94 7.816 7.691 7.568 7.445 7.323 7.203 7.083 6.964 6.847 6.73 6.615 6.501 6.389 6.278 6.168 6.059 5.952 5.846 5.742 5.639 5.537 5.437 5.338 5.241 5.145 5.051 4.958 4.866 4.776 4.687 4.6 4.514 4.43 4.347 4.265 4.184 4.105 4.028 3.951 3.876 3.802 3.73 3.659 3.589 3.52 3.452 3.386 3.321 3.257 3.194 3.133 3.072 3.013 2.954 2.897 2.841 2.786 2.731 2.678 2.626 2.575 2.525 2.475 2.427 2.38 2.333 2.287 2.243 2.199 2.156 2.113 2.072 2.031 1.991 1.952 1.914 1.876 1.839 1.803 1.768 1.733 1.699 1.665

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="2.086" PeakHeight="110.0" Num="3" Error="0.0">
-29.195 11.289 -2.357
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="2.086" EndFrequency="11.6" PeakHeight="392.486" Num="5" zHalfNm="284.455" Error="3.248">
-240.755 -31.976 21.09 -10.666 3.037
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="23.216" Depth="0.131"/>
<TopsideChapman PeakHeight="392.486" PeakDensity="1669478.9" PeakScaleHeight="77.894" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
