<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-14 -287 11:40:00.000"
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="15.0">
<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 11 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.44 Confidence: 100%</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" >
2026.10.14 (287) 11:40:00</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">
FF202628710141140009039031101000005015000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="11.300" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.986" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="33.738" 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="11.750" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="285.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="285.000" 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="11.100" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="410.000" 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="3.028" 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="4.188" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="299.272" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="231.543" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="7.970" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="88.645" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="35.041" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="49.529" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="124.060" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.050" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="111">
<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 10.95 11.0 11.05 11.1 11.15 11.2 11.25 11.3
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
285.000 285.000 285.000 285.000 285.000 285.000 285.000 290.000 290.000 290.000 290.000 290.000 290.000 290.000 295.000 295.000 295.000 295.000 295.000 295.000 295.000 300.000 300.000 300.000 300.000 300.000 300.000 300.000 305.000 305.000 305.000 306.382 307.763 309.145 310.526 311.908 313.289 314.671 316.053 317.434 318.816 320.197 321.579 322.961 324.342 325.724 327.105 328.487 329.868 331.250 332.632 334.013 335.395 336.776 338.158 339.539 340.921 342.303 343.684 345.066 346.447 347.829 349.211 350.592 351.974 353.355 354.737 356.118 357.500 358.882 360.263 361.645 363.026 364.408 365.789 367.171 368.553 369.934 371.316 372.697 374.079 375.461 376.842 378.224 379.605 380.987 382.368 383.750 385.132 386.513 387.895 389.276 390.658 392.039 393.421 394.803 396.184 397.566 398.947 400.329 401.711 403.092 404.474 405.855 407.237 408.618 410.000 417.986 430.525 453.068 505.525
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
72 75 75 75 75 75 72 72 75 75 75 75 75 72 72 72 75 72 72 72 72 72 69 72 75 75 72 72 72 0 75 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 0 0 57 60 54 0 45
</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 0.390625 -1.171875 -1.171875 2.734375 -2.734375 1.171875 2.734375 1.171875 -2.734375 1.171875 -1.953125 0.390625 2.734375 0.390625 1.171875 0.390625 1.171875 1.953125 -2.734375 1.171875 0.390625 -2.734375 0.390625 -0.390625 2.734375 -0.390625 -1.171875 0.390625 1.953125 -1.953125 2.734375 1.953125 0.390625 0.390625 0.390625 -1.953125 1.171875 -1.171875 -2.734375 2.734375 0.390625 -0.390625 1.953125 2.734375 1.171875 -2.734375 -1.171875 -2.734375 -2.734375 1.171875 1.171875 1.953125 -1.953125 1.171875 0.390625 -2.734375 -1.953125 -1.953125 1.953125 0.390625 2.734375 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 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" >
89.542 90.0 95.0 100.0 105.0 110.0 113.09 115.0 116.181 119.271 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 299.272 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.237 2.036 2.621 2.93 3.028 2.906 2.906 2.906 3.028 3.069 3.333 3.572 3.798 4.015 4.227 4.435 4.64 4.845 5.049 5.254 5.459 5.667 5.876 6.087 6.302 6.52 6.741 6.966 7.196 7.43 7.669 7.914 8.164 8.42 8.683 8.952 9.227 9.507 9.793 10.081 10.368 10.646 10.903 11.117 11.259 11.3 11.3 11.286 11.251 11.196 11.124 11.035 10.931 10.814 10.684 10.543 10.393 10.234 10.067 9.894 9.716 9.533 9.346 9.156 8.964 8.771 8.576 8.382 8.187 7.993 7.8 7.608 7.418 7.23 7.044 6.861 6.68 6.502 6.328 6.156 5.987 5.822 5.66 5.501 5.346 5.194 5.046 4.901 4.76 4.622 4.487 4.356 4.228 4.104 3.983 3.865 3.75 3.638 3.529 3.424 3.321 3.221 3.124 3.03 2.938 2.849 2.762 2.679 2.597 2.518 2.441 2.367 2.294 2.224 2.156 2.09 2.026 1.964 1.903 1.845 1.788 1.733 1.68 1.628 1.578 1.529 1.482 1.436 1.392 1.349 1.307 1.267 1.227 1.19 1.153 1.117 1.082 1.049 1.017 0.985 0.955 0.925 0.896 0.869 0.842 0.816 0.79 0.766 0.742 0.719 0.697 0.675 0.654 0.634 0.614 0.595 0.577 0.559 0.541 0.525 0.508 0.493 0.477 0.462 0.448 0.434 0.421 0.408 0.395 0.383 0.371 0.359 0.348 0.337 0.327 0.317 0.307 0.297 0.288 0.279 0.271 0.262 0.254 0.246 0.239 0.231 0.224

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.028" PeakHeight="110.0" Num="3" Error="0.0">
-30.218 12.737 -2.977
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.028" EndFrequency="11.3" PeakHeight="299.272" Num="5" zHalfNm="231.543" Error="1.952">
-146.234 -49.469 16.156 -0.355 -0.099
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="9.271" Depth="0.122"/>
<TopsideChapman PeakHeight="299.272" PeakDensity="1584243.1" PeakScaleHeight="49.529" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
