<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-03 -307 13:20:00.000"
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: 50% PACIFIC flags: F2x cusp not found, 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" >
2026.11.03 (307) 13:20:00</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">
FF202630711031320009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="10.400" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.865" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="29.796" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="9.100" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="9.100" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="10.700" 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="0.150" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="10.300" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="447.000" 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="3.313" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="9.100" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="9.100" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.325" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="281.395" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="193.744" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.323" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="112.073" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="35.003" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="60.423" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="136.610" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.410" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="27">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
390.000 390.000 395.000 396.667 398.333 400.000 401.667 403.333 405.000 406.667 408.333 410.000 410.000 410.000 410.000 415.000 420.000 425.000 425.000 430.000 432.500 435.000 439.000 443.000 447.000 452.575 458.669
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
57 0 0 0 0 0 0 0 0 0 0 57 0 0 54 0 0 0 0 48 0 0 0 0 48 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 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 1.953125 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" >
89.494 90.0 95.0 100.0 105.0 110.0 111.867 113.734 115.0 115.601 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 281.395 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.24 2.229 2.867 3.205 3.313 3.19 3.19 3.273 3.313 3.533 3.76 3.984 4.215 4.459 4.718 4.993 5.279 5.572 5.865 6.15 6.425 6.689 6.94 7.181 7.411 7.632 7.845 8.052 8.253 8.448 8.64 8.828 9.014 9.196 9.377 9.555 9.731 9.903 10.067 10.216 10.335 10.397 10.4 10.396 10.38 10.351 10.31 10.258 10.195 10.123 10.042 9.952 9.855 9.751 9.641 9.525 9.403 9.278 9.148 9.015 8.878 8.739 8.598 8.455 8.311 8.165 8.019 7.872 7.725 7.578 7.432 7.286 7.14 6.996 6.852 6.71 6.569 6.43 6.292 6.156 6.021 5.889 5.758 5.629 5.502 5.377 5.255 5.134 5.015 4.899 4.785 4.672 4.562 4.454 4.349 4.245 4.144 4.044 3.947 3.851 3.758 3.667 3.578 3.49 3.405 3.321 3.24 3.16 3.082 3.006 2.932 2.859 2.788 2.719 2.651 2.585 2.52 2.457 2.396 2.336 2.277 2.22 2.164 2.11 2.057 2.005 1.955 1.905 1.857 1.811 1.765 1.72 1.677 1.634 1.593 1.553 1.513 1.475 1.438 1.401 1.366 1.331 1.297 1.264 1.232 1.201 1.17 1.141 1.112 1.083 1.056 1.029 1.003 0.977 0.952 0.928 0.905 0.882 0.859 0.837 0.816 0.795 0.775 0.755 0.736 0.717 0.699 0.681 0.664 0.647 0.63 0.614 0.599 0.583 0.568 0.554 0.54 0.526 0.513 0.5 0.487 0.474 0.462 0.45 0.439 0.428 0.417

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.313" PeakHeight="110.0" Num="3" Error="0.0">
-30.445 13.068 -3.129
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.313" EndFrequency="10.4" PeakHeight="281.395" Num="5" zHalfNm="193.744" Error="5.445">
-147.8 -30.768 19.896 -10.34 3.218
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="5.601" Depth="0.123"/>
<TopsideChapman PeakHeight="281.395" PeakDensity="1341935.5" PeakScaleHeight="60.423" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
