<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-03 -307 16:10:00.000"
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: 45% PACIFIC flags: F2x cusp not found, Multiple candidates for F2o cusp, 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) 16:10:00</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">
FF202630711031610009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="12.250" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.837" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="34.751" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="9.350" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="9.350" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="12.550" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="365.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="365.000" 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="0.250" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="11.600" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="420.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="3.297" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="9.350" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="9.350" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.317" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="307.782" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="216.679" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.268" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="120.217" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="51.918" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="64.457" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="144.470" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.420" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="59">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 12.15 12.2 12.25
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
365.000 365.000 365.000 370.000 370.000 375.000 372.500 370.000 370.000 370.000 370.000 371.250 372.500 373.750 375.000 375.000 375.000 375.000 380.000 381.250 382.500 383.750 385.000 385.000 385.000 385.000 385.000 385.000 390.000 390.000 390.000 391.667 393.333 395.000 400.000 400.000 400.000 405.000 406.667 408.333 410.000 415.000 415.000 420.000 420.000 420.000 430.000 435.000 435.000 440.000 445.000 450.000 455.000 462.037 470.456 480.708 493.464 509.772 531.352
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 54 69 0 0 0 63 69 63 0 0 0 0 63 0 0 63 66 0 0 0 57 60 0 57 0 54 66 60 57 0 0 57 0 60 63 54 0 0 45 51 60 57 57 60 57 51 60 54 54 60 60 63 57 0 57 54 51
</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 -2.734375 -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" >
89.497 90.0 95.0 100.0 105.0 110.0 111.936 113.871 115.0 115.807 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 307.782 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.24 2.218 2.853 3.19 3.297 3.174 3.174 3.246 3.297 3.478 3.706 3.947 4.202 4.471 4.752 5.04 5.334 5.628 5.921 6.211 6.495 6.774 7.048 7.315 7.578 7.835 8.088 8.336 8.581 8.822 9.06 9.296 9.53 9.761 9.991 10.218 10.444 10.668 10.889 11.108 11.321 11.528 11.724 11.904 12.058 12.175 12.24 12.25 12.249 12.235 12.209 12.169 12.118 12.056 11.983 11.9 11.808 11.708 11.6 11.485 11.363 11.236 11.102 10.965 10.822 10.677 10.527 10.375 10.22 10.064 9.905 9.745 9.584 9.423 9.261 9.098 8.936 8.774 8.613 8.452 8.292 8.134 7.976 7.82 7.665 7.512 7.36 7.21 7.062 6.916 6.772 6.63 6.49 6.352 6.216 6.082 5.95 5.821 5.694 5.569 5.446 5.326 5.207 5.091 4.977 4.866 4.756 4.648 4.543 4.44 4.339 4.24 4.143 4.048 3.955 3.864 3.775 3.687 3.602 3.518 3.437 3.357 3.279 3.202 3.127 3.054 2.983 2.913 2.844 2.778 2.712 2.649 2.586 2.525 2.466 2.408 2.351 2.295 2.241 2.188 2.136 2.085 2.036 1.988 1.941 1.895 1.85 1.806 1.763 1.721 1.68 1.64 1.601 1.563 1.526 1.489 1.454 1.419 1.385 1.352 1.32 1.289 1.258 1.228 1.198 1.17 1.142 1.115 1.088 1.062 1.037 1.012 0.988 0.964 0.941 0.919 0.897 0.875 0.854 0.834 0.814 0.794 0.775 0.757 0.739 0.721 0.704

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.297" PeakHeight="110.0" Num="3" Error="0.0">
-30.433 13.051 -3.121
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.297" EndFrequency="12.25" PeakHeight="307.782" Num="5" zHalfNm="216.679" Error="2.473">
-172.952 -32.113 19.733 -8.046 1.403
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="5.807" Depth="0.123"/>
<TopsideChapman PeakHeight="307.782" PeakDensity="1861817.6" PeakScaleHeight="64.457" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
