<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-02 -306 17:50:00.000"
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: 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) 17:50:00</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">
FF202630611021750009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="12.050" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.688" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="32.385" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="8.900" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="8.900" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="12.350" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="390.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="390.000" 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="11.500" 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="2.983" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="8.900" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="8.900" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.165" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="329.280" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="234.678" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.814" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="124.789" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="51.707" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="65.753" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="152.130" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.330" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="64">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 11.65 11.7 11.75 11.8 11.85 11.9 11.95 12.0 12.05
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
390.000 390.000 390.000 390.000 390.000 395.000 395.000 395.000 395.000 395.000 395.000 395.000 395.000 400.000 400.000 400.000 405.000 405.000 405.000 405.000 410.000 408.333 406.667 405.000 410.000 410.000 410.000 412.500 415.000 415.000 416.000 417.000 418.000 419.000 420.000 425.000 425.000 430.000 430.000 430.000 435.000 435.000 440.000 440.000 445.000 445.000 450.000 450.000 455.000 460.000 460.000 465.000 465.000 470.000 475.000 480.000 485.000 485.000 490.000 496.466 504.194 513.594 525.274 540.176
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 0 60 0 0 0 0 0 0 60 0 63 0 0 0 0 60 63 48 0 0 63 60 0 63 0 63 0 0 54 0 0 51 54 0 54 57 57 57 57 54 57 54 57 54 54 54 51 57 51 54 60 57 51 51 54 51 51 54 54 0 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 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" >
89.548 90.0 95.0 100.0 105.0 110.0 113.295 115.0 116.59 119.885 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 329.28 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.237 2.005 2.582 2.886 2.983 2.861 2.861 2.861 2.983 2.987 3.182 3.384 3.598 3.824 4.064 4.317 4.581 4.853 5.129 5.405 5.678 5.947 6.21 6.467 6.717 6.961 7.199 7.432 7.66 7.884 8.104 8.321 8.534 8.746 8.955 9.162 9.368 9.573 9.778 9.981 10.185 10.389 10.592 10.795 10.998 11.2 11.398 11.589 11.767 11.917 12.02 12.05 12.05 12.041 12.02 11.986 11.941 11.885 11.819 11.743 11.658 11.565 11.465 11.357 11.243 11.123 10.998 10.867 10.733 10.594 10.452 10.307 10.16 10.01 9.858 9.705 9.551 9.395 9.239 9.083 8.927 8.77 8.614 8.459 8.304 8.15 7.997 7.845 7.694 7.545 7.397 7.251 7.106 6.963 6.822 6.682 6.545 6.41 6.276 6.145 6.015 5.888 5.762 5.639 5.518 5.399 5.282 5.167 5.054 4.943 4.835 4.728 4.624 4.521 4.42 4.322 4.225 4.131 4.038 3.947 3.858 3.771 3.685 3.602 3.52 3.44 3.362 3.285 3.21 3.136 3.065 2.994 2.926 2.858 2.793 2.728 2.665 2.604 2.544 2.485 2.428 2.371 2.317 2.263 2.21 2.159 2.109 2.06 2.012 1.965 1.92 1.875 1.831 1.789 1.747 1.706 1.667 1.628 1.59 1.553 1.516 1.481 1.446 1.413 1.38 1.347 1.316 1.285 1.255 1.226 1.197 1.169 1.142 1.115 1.089 1.063 1.038 1.014 0.99 0.967 0.944 0.922 0.901 0.88 0.859 0.839 0.819

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="2.983" PeakHeight="110.0" Num="3" Error="0.0">
-30.181 12.681 -2.952
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="2.983" EndFrequency="12.05" PeakHeight="329.28" Num="5" zHalfNm="234.678" Error="3.01">
-184.548 -42.898 27.688 -12.043 2.406
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="9.885" Depth="0.122"/>
<TopsideChapman PeakHeight="329.28" PeakDensity="1801519.9" PeakScaleHeight="65.753" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
