<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-13 -286 14:40:00.000"
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="18.0">
<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: F2o cusp not found, One of F2 cusps was derived from the other, F2O model cusp does not fit trace</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" >
2026.10.13 (286) 14:40:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.63" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-11.39" 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">
FF202628610131440009039031101000005018000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="10.650" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.413" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="25.697" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="5.850" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="5.850" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.000" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="310.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="310.000" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="9.900" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="532.458" 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="3.404" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="5.850" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="5.850" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.367" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="384.177" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="245.151" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.698" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="182.211" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="60.281" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="100.127" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="216.320" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.540" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="97">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
5.85 5.9 5.95 6.0 6.05 6.1 6.15 6.2 6.25 6.3 6.35 6.4 6.45 6.5 6.55 6.6 6.65 6.7 6.75 6.8 6.85 6.9 6.95 7.0 7.05 7.1 7.15 7.2 7.25 7.3 7.35 7.4 7.45 7.5 7.55 7.6 7.65 7.7 7.75 7.8 7.85 7.9 7.95 8.0 8.05 8.1 8.15 8.2 8.25 8.3 8.35 8.4 8.45 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
310.000 310.000 310.000 310.000 310.000 310.000 310.000 310.000 315.000 315.000 315.000 320.000 320.000 320.000 325.000 325.000 325.000 330.000 330.000 335.000 335.000 340.000 340.000 345.000 345.000 345.000 348.347 351.695 355.042 358.390 361.737 365.085 368.432 371.780 375.127 378.475 381.822 385.170 388.517 391.865 395.212 398.560 401.907 405.254 408.602 411.949 415.297 418.644 421.992 425.339 428.687 432.034 435.382 438.729 442.077 445.424 448.772 452.119 455.467 458.814 462.162 465.509 468.856 472.204 475.551 478.899 482.246 485.594 488.941 492.289 495.636 498.984 502.331 505.679 509.026 512.374 515.721 519.069 522.416 525.763 529.111 532.458 535.806 540.000 550.000 555.000 565.000 575.000 585.000 595.000 605.000 620.000 635.000 655.000 675.000 700.000 729.367
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
63 63 60 63 60 63 63 60 57 60 63 63 66 66 63 66 66 66 66 63 63 57 63 57 63 63 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 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 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 -2.734375 -2.734375 2.734375 -2.734375 -1.171875 1.953125 2.734375 1.171875 -2.734375 2.734375 2.734375 1.953125 1.953125 0.390625 -1.171875 2.734375 1.953125 -1.171875 -1.171875 1.953125 -2.734375 -1.953125 -2.734375 1.953125 1.171875 0.390625 -1.953125 2.734375 -2.734375 -1.953125 2.734375 1.953125 0.390625 2.734375 -1.171875 2.734375 -0.390625 1.171875 -1.953125 0.390625 1.953125 2.734375 1.171875 -1.171875 -0.390625 -2.734375 2.734375 2.734375 -2.734375 1.953125 -1.171875 1.171875 -2.734375 2.734375 2.734375 -0.390625 -1.953125
</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" >
89.481 90.0 95.0 100.0 105.0 110.0 111.495 112.991 114.486 115.0 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 384.177 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.241 2.29 2.946 3.293 3.404 3.281 3.281 3.404 3.421 3.583 3.736 3.884 4.031 4.177 4.325 4.475 4.627 4.781 4.938 5.097 5.257 5.42 5.584 5.749 5.915 6.08 6.246 6.41 6.574 6.737 6.898 7.058 7.215 7.372 7.526 7.679 7.829 7.978 8.125 8.27 8.414 8.555 8.695 8.833 8.969 9.104 9.236 9.366 9.493 9.618 9.74 9.859 9.974 10.084 10.188 10.286 10.375 10.456 10.524 10.58 10.62 10.644 10.65 10.65 10.647 10.638 10.625 10.607 10.585 10.558 10.527 10.492 10.453 10.411 10.365 10.316 10.263 10.208 10.15 10.089 10.025 9.959 9.89 9.82 9.747 9.673 9.597 9.519 9.439 9.359 9.276 9.193 9.109 9.023 8.937 8.85 8.762 8.674 8.584 8.495 8.405 8.315 8.225 8.134 8.043 7.952 7.862 7.771 7.68 7.59 7.499 7.409 7.32 7.23 7.141 7.052 6.964 6.876 6.789 6.702 6.616 6.531 6.446 6.361 6.277 6.194 6.112 6.03 5.949 5.869 5.789 5.71 5.632 5.555 5.478 5.402 5.327 5.253 5.18 5.107 5.035 4.964 4.894 4.824 4.755 4.687 4.62 4.554 4.488 4.424 4.36 4.297 4.234 4.173 4.112 4.052 3.992 3.934 3.876 3.819 3.763 3.707 3.653 3.599 3.545 3.493 3.441 3.39 3.339 3.289 3.24 3.192 3.144 3.097 3.05 3.005 2.959 2.915 2.871 2.828 2.785 2.743 2.702 2.661 2.621 2.581 2.542

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.404" PeakHeight="110.0" Num="3" Error="0.0">
-30.51 13.165 -3.174
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.404" EndFrequency="10.65" PeakHeight="384.177" Num="5" zHalfNm="245.151" Error="3.504">
-247.159 -36.008 18.145 -6.974 2.305
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="4.486" Depth="0.123"/>
<TopsideChapman PeakHeight="384.177" PeakDensity="1407227.0" PeakScaleHeight="100.127" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
