<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-01 -305 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 22 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.44 Confidence: 70% PACIFIC flags: F2x cusp not found, 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" >
2026.11.01 (305) 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">
FF202630511011630009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="11.650" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.502" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="29.146" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="8.500" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="8.500" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.950" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="400.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="400.000" 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="10.350" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="465.000" 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="3.256" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="8.500" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="8.500" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.298" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="371.138" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="245.002" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.388" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="168.706" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="65.888" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="91.456" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="194.780" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.590" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="64">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
8.5 8.55 8.6 8.65 8.7 8.75 8.8 8.85 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
400.000 400.000 402.500 405.000 407.500 410.000 410.000 412.500 415.000 415.000 415.000 417.500 420.000 421.250 422.500 423.750 425.000 430.000 430.000 430.000 430.000 435.000 435.000 437.500 440.000 445.000 445.000 445.000 455.000 455.000 445.000 455.000 455.000 455.000 460.000 462.500 465.000 465.000 470.000 475.000 480.000 485.000 490.000 490.000 495.000 500.000 505.000 510.000 515.000 515.000 520.000 530.000 535.000 540.000 550.000 555.000 565.000 575.000 585.000 600.000 617.542 639.435 667.528 704.889
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 0 0 0 0 0 0 0 0 0 57 0 48 0 63 0 54 63 66 0 60 54 63 54 60 60 45 54 54 60 0 57 60 0 57 60 57 60 60 57 51 57 57 57 54 54 54 54 51 51 51 51 54 48 51 48 48 48 45 45 45 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 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
</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 95.0 100.0 105.0 110.0 112.105 114.21 115.0 116.315 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 371.138 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.239 2.19 2.818 3.15 3.256 3.134 3.134 3.18 3.256 3.372 3.535 3.707 3.887 4.073 4.265 4.463 4.664 4.869 5.075 5.282 5.49 5.696 5.902 6.107 6.31 6.511 6.711 6.908 7.104 7.297 7.489 7.679 7.867 8.053 8.238 8.421 8.602 8.782 8.959 9.136 9.31 9.483 9.653 9.822 9.988 10.151 10.311 10.467 10.619 10.765 10.906 11.039 11.164 11.279 11.381 11.47 11.543 11.598 11.634 11.649 11.65 11.648 11.64 11.625 11.604 11.577 11.544 11.506 11.463 11.415 11.362 11.305 11.243 11.178 11.108 11.035 10.959 10.879 10.797 10.712 10.624 10.533 10.441 10.346 10.25 10.151 10.052 9.95 9.848 9.744 9.64 9.534 9.428 9.321 9.213 9.105 8.997 8.888 8.78 8.671 8.562 8.453 8.345 8.237 8.129 8.021 7.914 7.807 7.701 7.596 7.491 7.387 7.283 7.18 7.078 6.977 6.876 6.777 6.678 6.58 6.483 6.388 6.293 6.199 6.106 6.014 5.923 5.833 5.744 5.656 5.569 5.483 5.398 5.314 5.232 5.15 5.069 4.99 4.911 4.834 4.757 4.682 4.607 4.534 4.462 4.39 4.32 4.251 4.182 4.115 4.048 3.983 3.918 3.855 3.792 3.73 3.67 3.61 3.551 3.493 3.436 3.379 3.324 3.269 3.215 3.162 3.11 3.059 3.009 2.959 2.91 2.862 2.814 2.768 2.722 2.677 2.632 2.588 2.545 2.503 2.461 2.42 2.38 2.34 2.301 2.263 2.225

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.256" PeakHeight="110.0" Num="3" Error="0.0">
-30.401 13.004 -3.099
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.256" EndFrequency="11.65" PeakHeight="371.138" Num="5" zHalfNm="245.002" Error="1.876">
-238.527 -27.573 16.607 -6.099 0.769
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="6.315" Depth="0.122"/>
<TopsideChapman PeakHeight="371.138" PeakDensity="1683902.0" PeakScaleHeight="91.456" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
