<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-03 -307 13:40:00.000"
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: 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) 13:40:00</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">
FF202630711031340009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="11.350" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.823" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="32.046" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="8.950" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="8.950" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.650" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="375.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="375.000" 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="10.850" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="432.102" 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="3.343" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="8.950" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="8.950" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.339" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="300.724" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="209.282" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.445" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="116.499" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="43.461" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="62.467" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="146.950" 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="49">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
375.000 375.000 375.000 380.000 381.250 382.500 383.750 385.000 386.250 387.500 388.750 390.000 391.250 392.500 393.750 395.000 395.000 396.667 398.333 400.000 401.667 403.333 405.000 406.667 408.333 410.000 411.667 413.333 415.000 415.000 416.250 417.500 418.750 420.000 425.000 425.000 427.126 429.481 432.102 435.037 438.348 442.112 446.426 451.422 457.277 464.230 472.625 482.960 495.998
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 54 0 0 0 0 0 0 0 0 0 0 0 0 0 51 0 0 0 0 0 0 0 0 54 0 0 57 54 0 0 0 0 54 54 54 0 0 0 0 45 0 0 0 45 51 48 42
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
0.390625 0.390625 0.390625 -2.734375 1.953125 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 2.734375 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 1.953125 -1.171875 0.390625 1.171875 0.390625 1.171875 2.734375 1.171875 1.171875 -2.734375 0.390625 0.390625 0.390625 2.734375 0.390625 -1.171875 0.390625 1.171875 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" >
89.49 90.0 95.0 100.0 105.0 110.0 111.744 113.487 115.0 115.231 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 300.724 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.24 2.249 2.893 3.234 3.343 3.22 3.22 3.327 3.343 3.55 3.77 3.999 4.241 4.496 4.765 5.043 5.327 5.611 5.891 6.165 6.43 6.686 6.933 7.171 7.402 7.626 7.843 8.056 8.264 8.468 8.668 8.866 9.061 9.255 9.447 9.639 9.83 10.022 10.213 10.405 10.596 10.786 10.972 11.144 11.282 11.349 11.35 11.345 11.326 11.295 11.251 11.196 11.131 11.055 10.97 10.877 10.776 10.668 10.553 10.432 10.305 10.174 10.038 9.899 9.757 9.611 9.463 9.313 9.161 9.008 8.855 8.7 8.545 8.39 8.235 8.08 7.926 7.773 7.62 7.469 7.319 7.17 7.023 6.877 6.733 6.591 6.451 6.313 6.176 6.042 5.909 5.779 5.651 5.525 5.401 5.279 5.16 5.042 4.927 4.814 4.704 4.595 4.489 4.384 4.282 4.182 4.084 3.988 3.894 3.802 3.712 3.624 3.538 3.453 3.371 3.29 3.211 3.134 3.059 2.986 2.914 2.843 2.775 2.708 2.642 2.578 2.516 2.455 2.395 2.337 2.28 2.225 2.17 2.117 2.066 2.015 1.966 1.918 1.871 1.825 1.781 1.737 1.695 1.653 1.613 1.573 1.534 1.497 1.46 1.424 1.389 1.355 1.322 1.289 1.258 1.227 1.196 1.167 1.138 1.11 1.083 1.056 1.03 1.005 0.98 0.956 0.932 0.909 0.887 0.865 0.844 0.823 0.803 0.783 0.764 0.745 0.726 0.708 0.691 0.674 0.657 0.641 0.625 0.61 0.595 0.58 0.566

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.343" PeakHeight="110.0" Num="3" Error="0.0">
-30.467 13.101 -3.144
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.343" EndFrequency="11.35" PeakHeight="300.724" Num="5" zHalfNm="209.282" Error="3.286">
-161.2 -41.499 26.38 -11.747 2.573
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="5.231" Depth="0.123"/>
<TopsideChapman PeakHeight="300.724" PeakDensity="1598294.0" PeakScaleHeight="62.467" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
