<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-02 -306 16:30:00.000"
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) 16:30:00</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">
FF202630611021630009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="11.650" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.682" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="31.250" 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="11.950" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="395.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="395.000" 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="10.950" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="455.000" 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="3.255" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="9.050" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="9.050" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.298" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="327.283" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="225.307" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.388" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="133.019" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="52.007" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="71.312" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="161.980" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.380" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="53">
<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 11.55 11.6 11.65
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
395.000 400.000 400.000 400.000 400.000 405.000 405.000 405.000 405.000 405.000 410.000 410.000 410.000 415.000 415.000 415.000 417.500 420.000 420.000 420.000 420.000 420.000 420.000 421.667 423.333 425.000 430.000 430.000 430.000 432.500 435.000 440.000 440.000 445.000 445.000 450.000 455.000 455.000 455.000 460.000 465.000 470.000 470.000 475.000 480.000 490.000 495.000 500.000 507.500 517.585 529.671 544.419 562.815
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
57 0 0 63 54 57 0 0 0 0 0 0 0 0 0 63 0 54 0 60 60 63 60 0 0 54 54 57 57 0 57 54 54 54 54 54 51 0 0 51 54 48 48 48 48 51 54 51 0 45 45 48 42
</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 2.734375 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" >
89.504 90.0 95.0 100.0 105.0 110.0 112.11 114.221 115.0 116.331 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 327.283 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.239 2.189 2.817 3.149 3.255 3.133 3.133 3.178 3.255 3.395 3.591 3.795 4.008 4.232 4.465 4.708 4.959 5.213 5.469 5.724 5.977 6.225 6.467 6.705 6.937 7.163 7.384 7.601 7.813 8.021 8.225 8.427 8.625 8.821 9.015 9.207 9.397 9.586 9.773 9.959 10.145 10.329 10.511 10.691 10.869 11.041 11.206 11.359 11.491 11.59 11.644 11.65 11.648 11.637 11.615 11.583 11.542 11.492 11.434 11.368 11.294 11.213 11.126 11.033 10.934 10.83 10.722 10.609 10.492 10.372 10.249 10.122 9.994 9.863 9.73 9.595 9.459 9.322 9.184 9.045 8.906 8.767 8.627 8.488 8.349 8.21 8.072 7.934 7.798 7.662 7.527 7.393 7.26 7.128 6.998 6.869 6.742 6.616 6.491 6.368 6.247 6.127 6.009 5.893 5.778 5.665 5.553 5.444 5.336 5.23 5.125 5.022 4.921 4.822 4.724 4.628 4.534 4.441 4.35 4.261 4.173 4.087 4.003 3.92 3.838 3.758 3.68 3.603 3.528 3.454 3.382 3.311 3.241 3.173 3.106 3.04 2.976 2.913 2.851 2.791 2.732 2.674 2.617 2.561 2.507 2.453 2.401 2.35 2.3 2.25 2.202 2.155 2.109 2.064 2.02 1.976 1.934 1.892 1.852 1.812 1.773 1.735 1.698 1.661 1.625 1.59 1.556 1.523 1.49 1.458 1.426 1.396 1.366 1.336 1.307 1.279 1.251 1.224 1.198 1.172 1.147 1.122 1.098 1.074 1.051 1.028 1.006

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.255" PeakHeight="110.0" Num="3" Error="0.0">
-30.4 13.003 -3.099
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.255" EndFrequency="11.65" PeakHeight="327.283" Num="5" zHalfNm="225.307" Error="3.034">
-188.117 -38.734 24.225 -10.464 2.138
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="6.331" Depth="0.122"/>
<TopsideChapman PeakHeight="327.283" PeakDensity="1683902.0" PeakScaleHeight="71.312" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
