<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-03 -307 19:00:00.000"
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 11 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.44 Confidence: 90% PACIFIC flags: One of F2 cusps was derived from the other</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) 19:00:00</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">
FF202630711031900009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="12.100" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.955" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="35.757" 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="12.450" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="360.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="360.000" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="11.850" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="416.809" 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="2.568" 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="/" />
<URSI ID="92" Val="299.574" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="227.456" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.856" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="96.707" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="39.948" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="49.850" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="117.390" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.290" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="65">
<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 12.1
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
360.000 360.000 360.000 360.000 360.000 360.000 365.000 365.000 365.000 365.000 365.000 365.000 365.000 365.000 365.000 370.000 367.500 365.000 375.000 375.000 375.000 375.000 375.000 375.000 375.000 375.000 375.000 375.000 375.000 375.000 375.000 380.000 377.500 375.000 380.000 380.000 380.000 380.000 380.000 380.000 380.000 385.000 385.000 385.000 385.000 390.000 390.000 395.000 395.000 395.000 395.000 400.000 401.176 402.510 404.036 405.799 407.857 410.294 413.222 416.809 421.304 427.102 434.865 445.796 462.334
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
60 0 0 0 63 63 0 0 0 0 0 0 0 72 63 0 0 0 57 0 57 54 0 0 0 63 66 66 63 0 66 63 0 60 63 54 51 63 63 57 51 60 60 57 54 60 57 57 0 63 63 60 63 0 0 63 0 63 0 0 0 0 0 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 -1.171875 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 1.171875 -0.390625 -0.390625 -1.953125 -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 2.734375 2.734375 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" >
89.626 90.0 95.0 100.0 105.0 110.0 115.0 115.247 120.0 120.493 125.0 125.74 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 299.574 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.231 1.724 2.223 2.485 2.568 2.456 2.444 2.444 2.444 2.551 2.568 2.76 2.994 3.244 3.514 3.807 4.123 4.455 4.797 5.141 5.481 5.813 6.136 6.449 6.752 7.047 7.334 7.614 7.889 8.16 8.426 8.69 8.951 9.212 9.471 9.731 9.991 10.252 10.516 10.782 11.05 11.318 11.584 11.832 12.028 12.1 12.1 12.086 12.051 11.994 11.919 11.826 11.717 11.594 11.457 11.308 11.149 10.981 10.805 10.622 10.433 10.239 10.04 9.839 9.635 9.43 9.223 9.016 8.809 8.602 8.396 8.192 7.99 7.789 7.591 7.395 7.202 7.012 6.825 6.642 6.461 6.284 6.111 5.941 5.775 5.612 5.453 5.298 5.147 4.999 4.854 4.714 4.576 4.443 4.312 4.186 4.062 3.942 3.825 3.711 3.601 3.493 3.389 3.287 3.188 3.092 2.999 2.909 2.821 2.735 2.653 2.572 2.494 2.418 2.345 2.273 2.204 2.137 2.072 2.008 1.947 1.887 1.83 1.774 1.719 1.667 1.616 1.566 1.518 1.471 1.426 1.382 1.34 1.299 1.259 1.22 1.183 1.146 1.111 1.077 1.044 1.012 0.98 0.95 0.921 0.893 0.865 0.839 0.813 0.788 0.763 0.74 0.717 0.695 0.674 0.653 0.633 0.613 0.594 0.576 0.558 0.541 0.524 0.508 0.492 0.477 0.463 0.448 0.434 0.421 0.408 0.395 0.383 0.371 0.36 0.349 0.338 0.328 0.318 0.308 0.298 0.289 0.28 0.272 0.263 0.255 0.247

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="2.568" PeakHeight="110.0" Num="3" Error="0.0">
-29.787 12.114 -2.701
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="2.568" EndFrequency="12.1" PeakHeight="299.574" Num="5" zHalfNm="227.456" Error="3.235">
-151.005 -39.436 25.765 -11.717 2.559
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="15.74" Depth="0.124"/>
<TopsideChapman PeakHeight="299.574" PeakDensity="1816501.2" PeakScaleHeight="49.85" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
