<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-03 -307 11:40:00.000"
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: 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) 11:40:00</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">
FF202630711031140009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="9.600" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.717" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="26.080" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="9.200" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="9.200" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="9.850" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="460.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="460.000" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="9.200" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="460.000" 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="3.022" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="9.200" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="9.200" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.184" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="298.572" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="201.424" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="7.927" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="130.395" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="34.583" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="71.111" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="143.980" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.800" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="9">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
9.2 9.25 9.3 9.35 9.4 9.45 9.5 9.55 9.6
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
460.000 465.000 470.000 477.500 485.000 495.000 504.050 513.898 524.654
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 0 57 0 57 51 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 1.171875
</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" >
89.542 90.0 95.0 100.0 105.0 110.0 113.121 115.0 116.241 119.362 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 298.572 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.237 2.031 2.616 2.924 3.022 2.9 2.9 2.9 3.022 3.05 3.257 3.458 3.661 3.868 4.083 4.306 4.537 4.776 5.021 5.269 5.519 5.768 6.014 6.256 6.493 6.724 6.948 7.167 7.379 7.584 7.784 7.977 8.163 8.343 8.515 8.679 8.835 8.982 9.117 9.24 9.348 9.44 9.513 9.565 9.594 9.6 9.6 9.592 9.577 9.552 9.52 9.481 9.434 9.381 9.321 9.256 9.185 9.109 9.029 8.944 8.855 8.763 8.667 8.568 8.466 8.363 8.257 8.149 8.039 7.928 7.816 7.703 7.589 7.474 7.36 7.244 7.129 7.014 6.899 6.784 6.67 6.556 6.443 6.33 6.219 6.108 5.998 5.889 5.781 5.675 5.569 5.465 5.362 5.26 5.16 5.061 4.963 4.867 4.772 4.678 4.586 4.495 4.406 4.318 4.231 4.146 4.062 3.98 3.899 3.82 3.742 3.665 3.59 3.516 3.443 3.372 3.302 3.234 3.166 3.1 3.036 2.972 2.91 2.849 2.789 2.73 2.672 2.616 2.561 2.507 2.453 2.401 2.35 2.3 2.251 2.203 2.156 2.11 2.065 2.021 1.978 1.936 1.894 1.854 1.814 1.775 1.737 1.7 1.663 1.627 1.592 1.558 1.525 1.492 1.46 1.428 1.397 1.367 1.338 1.309 1.281 1.253 1.226 1.199 1.173 1.148 1.123 1.099 1.075 1.052 1.029 1.007 0.985 0.964 0.943 0.922 0.902 0.883 0.864 0.845 0.827 0.809 0.791 0.774 0.757 0.741 0.725

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.022" PeakHeight="110.0" Num="3" Error="0.0">
-30.213 12.729 -2.974
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.022" EndFrequency="9.6" PeakHeight="298.572" Num="5" zHalfNm="201.424" Error="3.649">
-173.332 -10.099 6.583 -3.754 1.392
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="9.362" Depth="0.122"/>
<TopsideChapman PeakHeight="298.572" PeakDensity="1143424.4" PeakScaleHeight="71.111" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
