<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-13 -286 17:20:00.000"
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: 45% PACIFIC flags: F2o cusp not found, Multiple candidates for F2x cusp, 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) 17:20:00</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">
FF202628610131720009039031101000005018000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="10.650" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.452" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="26.113" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="5.650" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="5.650" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.000" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="345.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="345.000" 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="10.000" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="525.774" 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="3.132" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="5.650" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="5.650" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.239" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="385.901" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="268.218" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.928" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="154.394" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="52.883" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="86.247" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="198.430" 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="101">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
5.65 5.7 5.75 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
345.000 345.000 345.000 350.000 350.000 350.000 350.000 350.000 355.000 355.000 355.000 355.000 360.000 360.000 360.000 360.000 360.000 365.000 365.000 365.000 365.000 365.000 365.000 365.000 370.000 375.000 375.000 375.000 377.513 380.026 382.539 385.052 387.564 390.077 392.590 395.103 397.616 400.129 402.642 405.155 407.668 410.181 412.693 415.206 417.719 420.232 422.745 425.258 427.771 430.284 432.797 435.309 437.822 440.335 442.848 445.361 447.874 450.387 452.900 455.413 457.925 460.438 462.951 465.464 467.977 470.490 473.003 475.516 478.029 480.542 483.054 485.567 488.080 490.593 493.106 495.619 498.132 500.645 503.158 505.670 508.183 510.696 513.209 515.722 518.235 520.748 523.261 525.774 530.000 535.000 545.000 550.000 560.000 565.000 575.000 590.000 600.000 615.000 635.000 655.000 676.557
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 63 63 63 63 66 63 60 63 69 66 66 63 66 66 66 63 63 63 63 63 63 60 48 60 0 0 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 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 -1.171875 1.953125 -1.953125 -2.734375 -1.171875 1.171875 -2.734375 -2.734375 2.734375 -1.171875 -1.171875 1.953125 -2.734375 1.953125 -2.734375 0.390625 1.953125 0.390625 -2.734375 1.953125 2.734375 -1.953125 -2.734375 2.734375 2.734375 -0.390625 -2.734375 0.390625 -1.171875 -1.171875 0.390625 2.734375 -0.390625 -0.390625 -2.734375 -1.953125 -1.953125 1.953125 -0.390625 -1.171875 0.390625 -1.953125 -2.734375 -2.734375 -1.953125 1.171875 2.734375 -1.953125 -2.734375 -2.734375 -1.171875 -0.390625 2.734375 1.953125 2.734375 -2.734375 -0.390625 1.953125 -0.390625 1.953125 -0.390625 -1.171875 -1.171875 -2.734375 0.390625 1.171875 -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" >
89.524 90.0 95.0 100.0 105.0 110.0 112.635 115.0 115.271 117.906 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 385.901 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.238 2.106 2.711 3.03 3.132 3.01 3.01 3.01 3.132 3.207 3.374 3.53 3.68 3.826 3.968 4.108 4.248 4.386 4.524 4.662 4.8 4.939 5.077 5.217 5.357 5.498 5.64 5.783 5.927 6.073 6.219 6.366 6.515 6.664 6.815 6.967 7.12 7.275 7.43 7.587 7.744 7.903 8.062 8.223 8.384 8.545 8.707 8.869 9.03 9.19 9.35 9.507 9.661 9.811 9.955 10.093 10.221 10.338 10.44 10.525 10.59 10.632 10.65 10.65 10.648 10.639 10.623 10.601 10.574 10.54 10.501 10.457 10.408 10.354 10.295 10.233 10.166 10.096 10.022 9.945 9.865 9.782 9.697 9.609 9.518 9.426 9.332 9.236 9.138 9.04 8.939 8.838 8.736 8.633 8.53 8.425 8.321 8.216 8.11 8.005 7.9 7.794 7.689 7.584 7.479 7.375 7.271 7.167 7.064 6.962 6.86 6.759 6.658 6.559 6.46 6.362 6.264 6.168 6.073 5.978 5.885 5.792 5.701 5.61 5.521 5.432 5.345 5.259 5.173 5.089 5.006 4.924 4.843 4.763 4.684 4.606 4.529 4.454 4.379 4.306 4.233 4.162 4.091 4.022 3.954 3.886 3.82 3.755 3.691 3.627 3.565 3.504 3.443 3.384 3.325 3.268 3.211 3.156 3.101 3.047 2.994 2.942 2.89 2.84 2.79 2.741 2.693 2.646 2.6 2.554 2.509 2.465 2.422 2.379 2.337 2.296 2.255 2.215 2.176 2.138 2.1 2.063 2.026 1.99 1.955 1.92 1.886

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.132" PeakHeight="110.0" Num="3" Error="0.0">
-30.303 12.861 -3.034
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.132" EndFrequency="10.65" PeakHeight="385.901" Num="5" zHalfNm="268.218" Error="3.143">
-231.888 -53.146 17.738 -1.168 0.469
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="7.906" Depth="0.122"/>
<TopsideChapman PeakHeight="385.901" PeakDensity="1407227.0" PeakScaleHeight="86.247" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
