<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-13 -286 17:40:00.000"
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) 17:40:00</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">
FF202628610131740009039031101000005018000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="10.900" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.464" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="26.859" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="5.800" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="5.800" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.300" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="330.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="330.000" 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="10.100" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="510.422" 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="3.054" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="5.800" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="5.800" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.200" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="385.669" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="262.571" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="10.043" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="165.143" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="57.723" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="90.908" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="196.540" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.510" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="103">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
5.8 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 10.7 10.75 10.8 10.85 10.9
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
330.000 330.000 330.000 330.000 330.000 330.000 335.000 335.000 335.000 337.500 340.000 340.000 340.000 345.000 345.000 345.000 345.000 350.000 350.000 350.000 350.000 350.000 355.000 355.000 355.000 355.000 360.000 360.000 360.000 362.593 365.187 367.780 370.374 372.967 375.561 378.154 380.748 383.341 385.935 388.528 391.122 393.715 396.309 398.902 401.496 404.089 406.683 409.276 411.870 414.463 417.057 419.650 422.243 424.837 427.430 430.024 432.617 435.211 437.804 440.398 442.991 445.585 448.178 450.772 453.365 455.959 458.552 461.146 463.739 466.333 468.926 471.520 474.113 476.707 479.300 481.893 484.487 487.080 489.674 492.267 494.861 497.454 500.048 502.641 505.235 507.828 510.422 514.766 519.507 525.000 530.000 535.000 545.000 550.000 560.000 570.000 580.000 595.000 610.000 630.000 650.000 680.000 711.425
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
63 66 63 66 66 66 66 66 66 0 63 66 63 0 69 69 66 66 66 72 72 72 66 69 72 69 69 0 72 0 0 0 48 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 0.390625 0.390625 0.390625 0.390625 0.390625 -2.734375 -0.390625 -1.953125 0.390625 1.953125 0.390625 -0.390625 0.390625 -2.734375 -0.390625 0.390625 -0.390625 -1.171875 1.953125 -0.390625 1.953125 2.734375 2.734375 1.171875 2.734375 -2.734375 0.390625 -0.390625 -1.953125 -1.953125 0.390625 -2.734375 2.734375 0.390625 -1.953125 -2.734375 1.953125 0.390625 0.390625 -0.390625 -2.734375 2.734375 2.734375 -1.171875 -1.953125 -1.953125 -1.171875 -0.390625 -2.734375 1.953125 1.171875 2.734375 1.171875 1.171875 2.734375 2.734375 0.390625 1.953125 -1.953125 -2.734375 2.734375 -2.734375 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" >
89.536 90.0 95.0 100.0 105.0 110.0 112.978 115.0 115.956 118.934 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 385.669 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.237 2.053 2.643 2.955 3.054 2.932 2.932 2.932 3.054 3.091 3.257 3.419 3.577 3.733 3.887 4.042 4.196 4.35 4.505 4.66 4.817 4.974 5.132 5.291 5.451 5.612 5.774 5.937 6.102 6.267 6.433 6.6 6.768 6.937 7.107 7.277 7.448 7.619 7.791 7.963 8.134 8.306 8.477 8.648 8.817 8.986 9.152 9.316 9.478 9.636 9.79 9.939 10.082 10.218 10.345 10.463 10.57 10.665 10.745 10.81 10.858 10.888 10.9 10.9 10.898 10.889 10.874 10.854 10.828 10.797 10.76 10.719 10.673 10.623 10.568 10.51 10.447 10.381 10.312 10.24 10.164 10.086 10.005 9.922 9.836 9.749 9.659 9.568 9.475 9.381 9.285 9.189 9.091 8.992 8.892 8.792 8.691 8.59 8.488 8.386 8.284 8.182 8.079 7.977 7.875 7.773 7.671 7.569 7.468 7.368 7.267 7.168 7.069 6.97 6.872 6.775 6.678 6.583 6.488 6.393 6.3 6.208 6.116 6.025 5.935 5.846 5.758 5.671 5.585 5.5 5.416 5.332 5.25 5.169 5.088 5.009 4.931 4.854 4.777 4.702 4.627 4.554 4.482 4.41 4.34 4.27 4.202 4.134 4.068 4.002 3.937 3.873 3.811 3.749 3.688 3.627 3.568 3.51 3.452 3.396 3.34 3.285 3.231 3.178 3.125 3.074 3.023 2.973 2.923 2.875 2.827 2.78 2.734 2.688 2.644 2.6 2.556 2.514 2.472 2.43 2.39 2.35 2.31 2.271 2.233 2.196 2.159

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.054" PeakHeight="110.0" Num="3" Error="0.0">
-30.24 12.768 -2.992
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.054" EndFrequency="10.9" PeakHeight="385.669" Num="5" zHalfNm="262.571" Error="2.554">
-243.013 -35.817 13.083 -1.38 0.392
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="8.934" Depth="0.122"/>
<TopsideChapman PeakHeight="385.669" PeakDensity="1474069.5" PeakScaleHeight="90.908" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
