<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-03 -307 13:10:00.000"
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 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) 13:10:00</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">
FF202630711031310009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="10.700" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.790" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="29.856" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="9.950" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="9.950" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.000" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="425.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="425.000" 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="10.250" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="440.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="3.295" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="9.950" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="9.950" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.316" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="292.619" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="198.979" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.265" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="123.618" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="40.626" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="66.916" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="141.460" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.630" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="16">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
425.000 427.500 430.000 432.500 435.000 437.500 440.000 450.000 452.500 455.000 460.000 465.000 471.416 478.668 486.933 496.436
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
54 0 0 0 54 0 51 45 0 51 0 0 48 0 51 48
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-0.390625 0.390625 -1.171875 1.953125 0.390625 -0.390625 2.734375 0.390625 0.390625 -2.734375 -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" >
89.497 90.0 95.0 100.0 105.0 110.0 111.943 113.886 115.0 115.829 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 292.619 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.24 2.216 2.852 3.188 3.295 3.173 3.173 3.243 3.295 3.498 3.722 3.943 4.168 4.403 4.649 4.907 5.177 5.457 5.741 6.027 6.31 6.587 6.857 7.118 7.371 7.615 7.852 8.081 8.303 8.518 8.728 8.932 9.131 9.325 9.513 9.695 9.871 10.039 10.197 10.343 10.471 10.577 10.653 10.694 10.7 10.699 10.688 10.666 10.633 10.591 10.54 10.481 10.413 10.337 10.255 10.166 10.072 9.971 9.866 9.756 9.642 9.525 9.404 9.28 9.153 9.025 8.894 8.762 8.628 8.493 8.358 8.222 8.086 7.949 7.813 7.676 7.541 7.405 7.271 7.137 7.004 6.872 6.742 6.612 6.484 6.357 6.232 6.108 5.986 5.865 5.746 5.629 5.514 5.4 5.288 5.177 5.069 4.962 4.857 4.754 4.652 4.553 4.455 4.359 4.265 4.172 4.081 3.992 3.905 3.819 3.735 3.653 3.572 3.493 3.416 3.34 3.266 3.193 3.122 3.052 2.984 2.917 2.851 2.787 2.724 2.663 2.603 2.544 2.487 2.43 2.375 2.321 2.269 2.217 2.167 2.118 2.069 2.022 1.976 1.931 1.887 1.844 1.802 1.761 1.721 1.681 1.643 1.605 1.568 1.533 1.497 1.463 1.43 1.397 1.365 1.333 1.303 1.273 1.244 1.215 1.187 1.16 1.133 1.107 1.082 1.057 1.033 1.009 0.986 0.963 0.941 0.919 0.898 0.877 0.857 0.837 0.818 0.799 0.781 0.763 0.745 0.728 0.711 0.695 0.679 0.663 0.648

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.295" PeakHeight="110.0" Num="3" Error="0.0">
-30.431 13.048 -3.12
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.295" EndFrequency="10.7" PeakHeight="292.619" Num="5" zHalfNm="198.979" Error="5.092">
-165.407 -19.473 12.603 -6.904 2.391
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="5.829" Depth="0.122"/>
<TopsideChapman PeakHeight="292.619" PeakDensity="1420471.5" PeakScaleHeight="66.916" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
