<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-01 -305 14:40:00.000"
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 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" >
2026.11.01 (305) 14:40:00</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">
FF202630511011440009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="10.250" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.511" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="25.739" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="8.650" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="8.650" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="10.550" 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="0.250" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="9.500" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="495.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="3.384" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="8.650" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="8.650" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.358" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="345.374" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="223.016" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.792" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="155.866" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="47.702" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="85.049" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="193.060" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.400" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="33">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
450.000 450.000 452.500 455.000 460.000 465.000 467.500 470.000 470.000 470.000 475.000 480.000 480.000 485.000 490.000 490.000 495.000 495.000 500.000 505.000 510.000 514.235 518.872 523.970 529.603 535.858 542.847 550.704 559.603 569.766 581.482 595.138 611.258
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 51 0 0 0 0 0 51 60 63 63 54 63 57 51 60 60 60 60 60 60 60 60 57 57 54 54 54 54 0 51 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 1.171875 -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 -0.390625 -0.390625 -0.390625 -0.390625 -1.171875 -1.171875 -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" >
89.484 90.0 95.0 100.0 105.0 110.0 111.576 113.151 114.727 115.0 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 345.374 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.241 2.277 2.928 3.274 3.384 3.261 3.261 3.384 3.393 3.557 3.719 3.881 4.047 4.218 4.395 4.578 4.766 4.958 5.153 5.349 5.545 5.739 5.931 6.118 6.302 6.48 6.655 6.825 6.99 7.152 7.31 7.465 7.616 7.765 7.911 8.055 8.196 8.336 8.474 8.61 8.745 8.879 9.011 9.142 9.272 9.401 9.528 9.652 9.773 9.889 9.998 10.095 10.175 10.229 10.25 10.25 10.247 10.237 10.221 10.199 10.171 10.138 10.098 10.054 10.005 9.952 9.894 9.831 9.765 9.696 9.623 9.547 9.468 9.386 9.301 9.214 9.126 9.035 8.942 8.848 8.752 8.655 8.557 8.457 8.357 8.256 8.155 8.053 7.951 7.848 7.745 7.642 7.539 7.437 7.334 7.232 7.13 7.028 6.927 6.826 6.726 6.626 6.527 6.429 6.332 6.235 6.139 6.044 5.95 5.857 5.765 5.673 5.583 5.494 5.405 5.318 5.231 5.146 5.062 4.978 4.896 4.815 4.735 4.656 4.578 4.501 4.425 4.351 4.277 4.204 4.133 4.062 3.992 3.924 3.857 3.79 3.725 3.66 3.597 3.534 3.473 3.412 3.353 3.294 3.237 3.18 3.124 3.069 3.015 2.962 2.91 2.858 2.808 2.758 2.709 2.661 2.614 2.567 2.522 2.477 2.433 2.389 2.347 2.305 2.264 2.223 2.183 2.144 2.106 2.068 2.031 1.995 1.959 1.924 1.889 1.855 1.822 1.789 1.757 1.725 1.694 1.663 1.633 1.604 1.575 1.547 1.519

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.384" PeakHeight="110.0" Num="3" Error="0.0">
-30.496 13.144 -3.164
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.384" EndFrequency="10.25" PeakHeight="345.374" Num="5" zHalfNm="223.016" Error="3.867">
-205.508 -42.057 25.704 -11.662 2.876
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="4.727" Depth="0.123"/>
<TopsideChapman PeakHeight="345.374" PeakDensity="1303505.0" PeakScaleHeight="85.049" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
