<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-09 -282 14:30:00.000"
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" >
2026.10.09 (282) 14:30:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.63" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-11.38" 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">
FF202628210091430009039031101000005018000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="10.550" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.286" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="24.112" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="5.600" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="5.600" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="10.850" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="320.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="320.000" 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="88" Val="9.950" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="591.710" 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="5.600" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="5.600" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.367" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="405.592" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="252.361" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.629" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="199.343" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="64.168" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="108.645" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="236.260" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.530" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="100">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
5.6 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
320.000 320.000 325.000 325.000 325.000 325.000 325.000 325.000 325.000 330.000 330.000 330.000 330.000 330.000 335.000 335.000 335.000 335.000 340.000 340.000 340.000 340.000 345.000 345.000 345.000 345.000 350.000 350.000 350.000 350.000 354.167 358.335 362.502 366.670 370.837 375.004 379.172 383.339 387.507 391.674 395.841 400.009 404.176 408.344 412.511 416.679 420.846 425.013 429.181 433.348 437.516 441.683 445.850 450.018 454.185 458.353 462.520 466.687 470.855 475.022 479.190 483.357 487.524 491.692 495.859 500.027 504.194 508.362 512.529 516.696 520.864 525.031 529.199 533.366 537.533 541.701 545.868 550.036 554.203 558.370 562.538 566.705 570.873 575.040 579.207 583.375 587.542 591.710 595.877 605.000 615.000 625.000 640.000 655.000 670.000 685.000 700.000 720.000 740.000 766.404
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
60 60 63 63 63 63 66 63 63 63 63 63 57 57 57 60 63 63 60 63 63 66 0 63 63 63 63 66 66 63 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
</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 -1.953125 0.390625 1.171875 -1.171875 0.390625 0.390625 -0.390625 1.171875 2.734375 2.734375 2.734375 2.734375 -2.734375 2.734375 1.953125 -0.390625 1.171875 1.953125 1.953125 -2.734375 2.734375 -0.390625 -1.171875 1.953125 -1.953125 1.953125 1.953125 -1.953125 -2.734375 -2.734375 -0.390625 2.734375 -1.171875 -1.953125 -1.953125 2.734375 -1.953125 1.171875 2.734375 1.171875 2.734375 1.171875 -1.953125 0.390625 -1.171875 1.953125 -1.171875 2.734375 -2.734375 -1.171875 0.390625 -1.171875 0.390625 1.953125 0.390625 1.953125 0.390625 -2.734375 -2.734375 -2.734375 2.734375 1.171875 0.390625 2.734375 1.953125 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" >
89.481 90.0 95.0 100.0 105.0 110.0 111.494 112.987 114.481 115.0 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 405.592 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 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 3.569 3.706 3.837 3.966 4.095 4.225 4.357 4.492 4.631 4.773 4.919 5.069 5.222 5.379 5.537 5.698 5.859 6.02 6.181 6.341 6.499 6.654 6.808 6.958 7.106 7.251 7.394 7.533 7.671 7.805 7.937 8.067 8.195 8.321 8.445 8.567 8.687 8.806 8.923 9.038 9.152 9.264 9.375 9.484 9.591 9.696 9.799 9.9 9.998 10.092 10.181 10.265 10.342 10.41 10.467 10.511 10.539 10.55 10.55 10.548 10.542 10.532 10.518 10.5 10.479 10.454 10.425 10.393 10.358 10.319 10.278 10.234 10.187 10.137 10.085 10.031 9.974 9.916 9.855 9.792 9.728 9.661 9.594 9.524 9.454 9.382 9.308 9.234 9.159 9.082 9.005 8.927 8.848 8.768 8.688 8.607 8.526 8.445 8.363 8.281 8.198 8.115 8.033 7.95 7.867 7.784 7.701 7.618 7.536 7.453 7.371 7.289 7.207 7.126 7.044 6.964 6.883 6.803 6.723 6.644 6.566 6.487 6.41 6.332 6.256 6.179 6.104 6.029 5.954 5.88 5.807 5.735 5.663 5.591 5.52 5.45 5.381 5.312 5.244 5.176 5.109 5.043 4.978 4.913 4.849 4.785 4.722 4.66 4.599 4.538 4.478 4.418 4.36 4.301 4.244 4.187 4.131 4.075 4.02 3.966 3.913 3.86 3.807 3.756 3.705 3.654 3.604 3.555 3.507 3.459 3.411 3.364 3.318 3.273 3.228 3.183 3.139 3.096

</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="10.55" PeakHeight="405.592" Num="5" zHalfNm="252.361" Error="5.402">
-265.044 -42.361 24.111 -12.078 4.261
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="4.481" Depth="0.123"/>
<TopsideChapman PeakHeight="405.592" PeakDensity="1380924.4" PeakScaleHeight="108.645" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
