<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-01 -305 15:00:00.000"
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) 15:00:00</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">
FF202630511011500009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="10.700" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.440" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="26.113" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="8.450" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="8.450" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.000" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="450.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="450.000" 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="10.000" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="525.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="3.380" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="8.450" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="8.450" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.356" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="366.418" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="236.825" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.895" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="165.555" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="55.178" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="90.072" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="207.010" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.360" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="46">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
8.45 8.5 8.55 8.6 8.65 8.7 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
450.000 455.000 455.000 455.000 456.667 458.333 460.000 460.000 460.000 462.500 465.000 467.500 470.000 475.000 480.000 480.000 480.000 485.000 490.000 495.000 495.000 495.000 500.000 500.000 510.000 515.000 520.000 525.000 530.000 535.000 535.000 525.000 530.000 535.000 540.000 545.000 550.455 556.575 563.490 571.365 580.415 590.925 603.277 618.005 635.864 657.975
</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 51 0 51 57 48 57 54 48 54 57 57 54 54 51 51 48 48 48 54 51 0 54 54 54 45 51 51 51 51 51 48 45 45 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
</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" >
89.485 90.0 95.0 100.0 105.0 110.0 111.592 113.184 114.776 115.0 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 366.418 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.241 2.274 2.925 3.27 3.38 3.257 3.257 3.38 3.387 3.537 3.691 3.849 4.012 4.182 4.357 4.538 4.723 4.911 5.101 5.291 5.481 5.669 5.854 6.036 6.214 6.388 6.559 6.726 6.889 7.049 7.206 7.36 7.511 7.66 7.807 7.951 8.094 8.234 8.374 8.511 8.648 8.784 8.918 9.052 9.184 9.317 9.448 9.578 9.708 9.836 9.963 10.087 10.209 10.325 10.434 10.532 10.614 10.671 10.699 10.7 10.698 10.691 10.677 10.657 10.632 10.602 10.566 10.526 10.481 10.431 10.377 10.319 10.258 10.192 10.124 10.052 9.977 9.9 9.82 9.737 9.652 9.565 9.477 9.386 9.294 9.201 9.106 9.01 8.913 8.815 8.716 8.617 8.517 8.416 8.315 8.214 8.113 8.011 7.91 7.809 7.707 7.606 7.506 7.405 7.305 7.205 7.106 7.008 6.91 6.812 6.715 6.619 6.524 6.429 6.335 6.242 6.15 6.059 5.968 5.879 5.79 5.702 5.616 5.53 5.445 5.361 5.278 5.196 5.115 5.035 4.956 4.877 4.8 4.724 4.649 4.575 4.502 4.43 4.359 4.288 4.219 4.151 4.084 4.017 3.952 3.887 3.824 3.761 3.7 3.639 3.579 3.52 3.462 3.405 3.348 3.293 3.238 3.184 3.131 3.079 3.028 2.977 2.928 2.879 2.831 2.783 2.736 2.691 2.645 2.601 2.557 2.514 2.472 2.43 2.389 2.349 2.309 2.27 2.232 2.194 2.157 2.12 2.084 2.049 2.014 1.98 1.946

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.38" PeakHeight="110.0" Num="3" Error="0.0">
-30.493 13.14 -3.162
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.38" EndFrequency="10.7" PeakHeight="366.418" Num="5" zHalfNm="236.825" Error="3.097">
-223.484 -47.575 29.308 -12.326 2.435
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="4.776" Depth="0.123"/>
<TopsideChapman PeakHeight="366.418" PeakDensity="1420471.5" PeakScaleHeight="90.072" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
