<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-02 -306 18:10:00.000"
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 22 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.44 Confidence: 70% PACIFIC flags: 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) 18:10:00</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">
FF202630611021810009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="12.350" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.679" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="33.089" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="9.150" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="9.150" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="12.650" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="375.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="375.000" 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="11.750" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="465.000" 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="2.885" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="9.150" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="9.150" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="337.703" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="238.463" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.868" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="134.231" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="57.983" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="71.026" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="153.650" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.530" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="65">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 11.65 11.7 11.75 11.8 11.85 11.9 11.95 12.0 12.05 12.1 12.15 12.2 12.25 12.3 12.35
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
375.000 375.000 375.000 380.000 380.000 380.000 380.000 380.000 380.000 385.000 387.500 390.000 390.000 390.000 392.500 395.000 395.000 395.000 395.000 395.000 395.000 405.000 400.000 400.000 402.500 405.000 405.000 405.000 405.000 410.000 415.000 415.000 415.000 420.000 420.000 425.000 425.000 425.000 430.000 430.000 435.000 435.000 440.000 440.000 445.000 445.000 450.000 455.000 455.000 460.000 460.000 465.000 465.000 475.000 475.000 485.000 490.000 496.597 504.059 512.569 522.363 533.757 547.178 563.218 582.727
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 0 57 0 0 0 66 0 0 0 0 72 0 72 0 66 69 72 0 0 60 57 66 0 0 66 0 60 51 0 60 63 60 63 63 60 60 57 60 57 51 0 51 60 54 60 54 51 57 57 57 57 57 57 54 54 54 51 54 51 51 51 0 42 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
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 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
</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" >
89.565 90.0 95.0 100.0 105.0 110.0 113.739 115.0 117.477 120.0 121.216 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 337.703 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.235 1.939 2.497 2.791 2.885 2.763 2.763 2.763 2.845 2.885 3.033 3.232 3.439 3.655 3.883 4.123 4.374 4.634 4.903 5.177 5.454 5.732 6.009 6.283 6.554 6.82 7.083 7.341 7.594 7.843 8.089 8.331 8.569 8.805 9.037 9.267 9.494 9.719 9.942 10.162 10.38 10.595 10.807 11.015 11.219 11.417 11.606 11.785 11.949 12.094 12.212 12.298 12.343 12.35 12.349 12.338 12.315 12.282 12.239 12.186 12.125 12.055 11.977 11.891 11.799 11.7 11.595 11.485 11.369 11.249 11.125 10.997 10.866 10.731 10.594 10.455 10.313 10.17 10.025 9.879 9.733 9.585 9.437 9.289 9.14 8.992 8.844 8.696 8.549 8.403 8.257 8.112 7.969 7.826 7.685 7.545 7.407 7.27 7.134 7.0 6.868 6.737 6.608 6.481 6.355 6.232 6.11 5.99 5.871 5.755 5.64 5.527 5.416 5.307 5.2 5.094 4.991 4.889 4.789 4.691 4.594 4.499 4.406 4.315 4.225 4.137 4.051 3.967 3.883 3.802 3.722 3.644 3.567 3.492 3.418 3.346 3.275 3.206 3.138 3.071 3.006 2.942 2.879 2.818 2.757 2.699 2.641 2.584 2.529 2.475 2.422 2.37 2.319 2.269 2.22 2.173 2.126 2.08 2.035 1.991 1.948 1.906 1.865 1.825 1.786 1.747 1.709 1.672 1.636 1.601 1.566 1.532 1.499 1.467 1.435 1.404 1.374 1.344 1.315 1.286 1.258 1.231 1.204 1.178 1.153 1.128 1.103

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="2.885" PeakHeight="110.0" Num="3" Error="0.0">
-30.097 12.558 -2.896
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="2.885" EndFrequency="12.35" PeakHeight="337.703" Num="5" zHalfNm="238.463" Error="2.46">
-199.929 -28.814 19.007 -8.706 1.955
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="11.216" Depth="0.122"/>
<TopsideChapman PeakHeight="337.703" PeakDensity="1892338.8" PeakScaleHeight="71.026" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
