<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-02 -306 16:10:00.000"
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" >
2026.11.02 (306) 16:10:00</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">
FF202630611021610009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="11.500" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.634" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="30.296" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="9.050" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="9.050" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.800" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="410.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="410.000" 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="10.900" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="475.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="3.298" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="9.100" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="9.100" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.318" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="336.898" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="227.157" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.268" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="143.771" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="54.744" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="77.447" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="172.160" 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="50">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
415.000 410.000 410.000 411.667 413.333 415.000 415.000 415.000 417.500 420.000 422.500 425.000 427.500 430.000 430.000 430.000 430.000 435.000 435.000 435.000 435.000 440.000 440.000 441.250 442.500 443.750 445.000 450.000 450.000 455.000 455.000 460.000 465.000 465.000 465.000 470.000 475.000 475.000 485.000 490.000 495.000 500.000 505.000 510.000 518.700 529.098 541.745 557.458 577.509 603.978
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 0 0 60 0 0 0 0 0 0 0 0 0 48 0 60 60 60 57 60 57 0 0 0 54 54 57 57 54 57 51 54 51 57 57 54 54 51 48 48 0 48 51 51 45 48 0 45
</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 0.390625 -1.171875 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" >
89.498 90.0 95.0 100.0 105.0 110.0 111.931 113.861 115.0 115.792 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 336.898 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.24 2.218 2.854 3.191 3.298 3.175 3.175 3.248 3.298 3.452 3.639 3.832 4.034 4.244 4.463 4.689 4.923 5.161 5.401 5.641 5.88 6.116 6.349 6.577 6.8 7.019 7.233 7.442 7.648 7.849 8.047 8.242 8.434 8.623 8.809 8.993 9.176 9.356 9.534 9.711 9.885 10.058 10.229 10.398 10.563 10.725 10.881 11.029 11.167 11.289 11.39 11.462 11.497 11.5 11.498 11.488 11.469 11.442 11.406 11.364 11.313 11.257 11.193 11.124 11.049 10.969 10.884 10.794 10.7 10.601 10.5 10.394 10.286 10.175 10.062 9.946 9.828 9.709 9.588 9.465 9.342 9.217 9.092 8.966 8.84 8.713 8.586 8.459 8.333 8.206 8.08 7.955 7.83 7.705 7.582 7.459 7.337 7.216 7.096 6.977 6.859 6.742 6.627 6.513 6.4 6.288 6.177 6.068 5.961 5.854 5.75 5.646 5.544 5.443 5.344 5.246 5.15 5.055 4.962 4.87 4.779 4.69 4.602 4.516 4.431 4.348 4.265 4.185 4.105 4.027 3.95 3.875 3.801 3.728 3.656 3.586 3.517 3.449 3.383 3.317 3.253 3.19 3.128 3.067 3.008 2.949 2.892 2.835 2.78 2.725 2.672 2.62 2.569 2.518 2.469 2.42 2.373 2.326 2.28 2.235 2.191 2.148 2.106 2.064 2.023 1.984 1.944 1.906 1.868 1.831 1.795 1.759 1.725 1.69 1.657 1.624 1.592 1.56 1.529 1.499 1.469 1.44 1.411 1.383 1.356 1.329 1.303

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.298" PeakHeight="110.0" Num="3" Error="0.0">
-30.433 13.052 -3.121
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.298" EndFrequency="11.5" PeakHeight="336.898" Num="5" zHalfNm="227.157" Error="2.99">
-200.572 -34.958 22.05 -9.63 2.004
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="5.792" Depth="0.123"/>
<TopsideChapman PeakHeight="336.898" PeakDensity="1640818.9" PeakScaleHeight="77.447" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
