<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-14 -287 11:30:00.000"
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="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) 11:30:00</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">
FF202628710141130009039031101000005015000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="11.250" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.956" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="33.254" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="5.500" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="5.500" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.600" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="290.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="290.000" 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="11.100" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="420.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="2.983" 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="4.165" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="302.413" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="235.823" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="7.972" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="86.879" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="34.076" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="48.346" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="122.500" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.020" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="116">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
5.5 5.55 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 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
295.000 295.000 295.000 294.000 293.000 292.000 291.000 290.000 290.000 290.000 290.000 290.000 295.000 295.000 295.000 295.000 295.000 295.000 295.000 295.000 295.000 295.000 295.000 295.000 295.000 295.000 300.000 300.000 300.000 300.000 300.000 300.000 300.000 300.000 302.500 305.000 305.000 306.513 308.026 309.539 311.053 312.566 314.079 315.592 317.105 318.618 320.132 321.645 323.158 324.671 326.184 327.697 329.211 330.724 332.237 333.750 335.263 336.776 338.289 339.803 341.316 342.829 344.342 345.855 347.368 348.882 350.395 351.908 353.421 354.934 356.447 357.961 359.474 360.987 362.500 364.013 365.526 367.039 368.553 370.066 371.579 373.092 374.605 376.118 377.632 379.145 380.658 382.171 383.684 385.197 386.711 388.224 389.737 391.250 392.763 394.276 395.789 397.303 398.816 400.329 401.842 403.355 404.868 406.382 407.895 409.408 410.921 412.434 413.947 415.461 416.974 418.487 420.000 425.798 436.808 465.798
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 0 0 0 0 66 66 69 69 69 72 72 72 72 72 72 72 72 72 72 72 72 72 72 72 72 72 75 75 75 75 72 0 0 72 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 54 45 57 57
</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 1.953125 0.390625 -1.953125 2.734375 -1.953125 1.171875 1.171875 -1.171875 -1.953125 0.390625 1.171875 -1.171875 -2.734375 0.390625 2.734375 -0.390625 -0.390625 0.390625 -1.953125 1.953125 -1.953125 -0.390625 -0.390625 1.953125 1.171875 1.171875 -2.734375 -0.390625 2.734375 1.171875 1.171875 -2.734375 1.953125 -1.171875 2.734375 1.953125 1.171875 1.953125 -1.171875 -1.953125 -1.171875 -2.734375 -1.953125 -2.734375 -1.953125 -0.390625 -2.734375 2.734375 2.734375 0.390625 -1.171875 0.390625 0.390625 -1.171875 1.171875 -0.390625 0.390625 -2.734375 2.734375 -1.171875 -1.953125 -2.734375 1.953125 -0.390625 1.171875 -0.390625 -1.171875 2.734375 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" >
89.548 90.0 95.0 100.0 105.0 110.0 113.294 115.0 116.587 119.881 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 302.413 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.237 2.005 2.582 2.886 2.983 2.861 2.861 2.861 2.983 2.991 3.259 3.481 3.685 3.881 4.072 4.262 4.452 4.644 4.837 5.032 5.231 5.432 5.637 5.846 6.059 6.276 6.497 6.722 6.951 7.185 7.423 7.666 7.914 8.166 8.423 8.685 8.953 9.225 9.502 9.783 10.067 10.351 10.63 10.889 11.105 11.233 11.25 11.247 11.224 11.18 11.116 11.034 10.936 10.822 10.696 10.557 10.407 10.248 10.081 9.906 9.726 9.541 9.351 9.158 8.963 8.766 8.568 8.369 8.17 7.972 7.775 7.58 7.386 7.194 7.005 6.818 6.634 6.453 6.275 6.1 5.929 5.761 5.596 5.436 5.278 5.125 4.975 4.828 4.685 4.546 4.41 4.278 4.149 4.024 3.902 3.783 3.668 3.556 3.447 3.341 3.238 3.138 3.041 2.947 2.856 2.767 2.681 2.597 2.516 2.438 2.362 2.288 2.216 2.146 2.079 2.014 1.95 1.889 1.83 1.772 1.716 1.662 1.609 1.559 1.509 1.462 1.416 1.371 1.327 1.285 1.245 1.205 1.167 1.13 1.094 1.06 1.026 0.994 0.962 0.931 0.902 0.873 0.846 0.819 0.793 0.768 0.743 0.72 0.697 0.675 0.653 0.632 0.612 0.593 0.574 0.556 0.538 0.521 0.505 0.488 0.473 0.458 0.443 0.429 0.416 0.402 0.39 0.377 0.365 0.354 0.342 0.332 0.321 0.311 0.301 0.291 0.282 0.273 0.264 0.256 0.248 0.24 0.232 0.225 0.218 0.211 0.204

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="2.983" PeakHeight="110.0" Num="3" Error="0.0">
-30.181 12.681 -2.952
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="2.983" EndFrequency="11.25" PeakHeight="302.413" Num="5" zHalfNm="235.823" Error="3.255">
-144.999 -53.715 16.731 -1.51 0.961
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="9.881" Depth="0.122"/>
<TopsideChapman PeakHeight="302.413" PeakDensity="1570254.4" PeakScaleHeight="48.346" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
