<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-14 -287 15:20:00.000"
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="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 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" >
2026.10.14 (287) 15:20:00</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">
FF202628710141520009039031101000005015000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="10.950" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.453" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="26.865" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="5.850" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="5.850" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.350" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="305.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="305.000" 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="10.350" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="531.511" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="3.388" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="5.900" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="5.900" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.360" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="377.937" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="244.997" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.996" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="175.037" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="61.125" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="95.931" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="206.840" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.540" 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" >
5.85 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
310.000 305.000 305.000 306.250 307.500 308.750 310.000 310.000 315.000 315.000 315.000 315.000 315.000 315.000 320.000 320.000 320.000 320.000 325.000 325.000 325.000 326.250 327.500 328.750 330.000 330.000 330.000 333.149 336.297 339.446 342.594 345.743 348.892 352.040 355.189 358.337 361.486 364.635 367.783 370.932 374.080 377.229 380.378 383.526 386.675 389.823 392.972 396.121 399.269 402.418 405.566 408.715 411.864 415.012 418.161 421.310 424.458 427.607 430.755 433.904 437.053 440.201 443.350 446.498 449.647 452.796 455.944 459.093 462.241 465.390 468.539 471.687 474.836 477.984 481.133 484.282 487.430 490.579 493.727 496.876 500.025 503.173 506.322 509.470 512.619 515.768 518.916 522.065 525.213 528.362 531.511 540.000 550.000 560.000 570.000 580.000 595.000 610.000 625.000 640.000 660.000 680.000 706.762
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
60 66 66 0 0 0 66 66 63 0 69 69 69 66 66 0 69 69 69 69 72 0 66 0 69 69 66 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 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 0.390625 0.390625 1.953125 2.734375 2.734375 -2.734375 0.390625 -2.734375 -1.171875 2.734375 0.390625 -1.171875 -1.171875 1.953125 -2.734375 -1.171875 -2.734375 -1.171875 -0.390625 -2.734375 -1.171875 -2.734375 2.734375 1.171875 1.953125 2.734375 -2.734375 -0.390625 1.171875 -0.390625 1.953125 0.390625 -1.953125 2.734375 -1.171875 -2.734375 2.734375 -1.171875 0.390625 1.171875 2.734375 -1.171875 -1.171875 0.390625 -2.734375 1.953125 2.734375 -1.171875 1.171875 -1.953125 2.734375 2.734375 -1.171875 1.171875 0.390625 1.171875 -2.734375 0.390625 1.171875 -0.390625 1.953125 1.171875 2.734375 2.734375 -2.734375 -0.390625 -2.734375 1.953125
</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" >
89.484 90.0 95.0 100.0 105.0 110.0 111.558 113.115 114.673 115.0 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 377.937 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.241 2.279 2.932 3.278 3.388 3.265 3.265 3.388 3.4 3.574 3.734 3.889 4.042 4.194 4.348 4.503 4.661 4.821 4.985 5.151 5.32 5.492 5.665 5.84 6.016 6.193 6.369 6.545 6.721 6.895 7.068 7.239 7.409 7.577 7.743 7.907 8.069 8.229 8.387 8.543 8.697 8.849 8.999 9.147 9.292 9.436 9.577 9.715 9.851 9.983 10.112 10.236 10.355 10.468 10.573 10.669 10.755 10.827 10.885 10.925 10.947 10.95 10.95 10.944 10.934 10.917 10.896 10.87 10.839 10.803 10.764 10.719 10.671 10.62 10.564 10.505 10.443 10.378 10.31 10.239 10.165 10.089 10.011 9.931 9.849 9.765 9.679 9.592 9.503 9.413 9.322 9.23 9.137 9.043 8.948 8.853 8.757 8.661 8.564 8.467 8.37 8.272 8.175 8.077 7.98 7.883 7.786 7.689 7.592 7.496 7.4 7.305 7.21 7.115 7.022 6.928 6.835 6.743 6.652 6.561 6.471 6.382 6.293 6.205 6.118 6.032 5.947 5.862 5.779 5.696 5.614 5.533 5.452 5.373 5.294 5.217 5.14 5.064 4.989 4.915 4.842 4.77 4.698 4.628 4.558 4.489 4.421 4.355 4.288 4.223 4.159 4.095 4.033 3.971 3.91 3.85 3.79 3.732 3.674 3.617 3.561 3.506 3.452 3.398 3.345 3.293 3.241 3.191 3.141 3.092 3.043 2.995 2.948 2.902 2.856 2.811 2.767 2.723 2.68 2.638 2.596 2.555 2.515 2.475 2.436 2.397 2.359

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.388" PeakHeight="110.0" Num="3" Error="0.0">
-30.499 13.149 -3.166
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.388" EndFrequency="10.95" PeakHeight="377.937" Num="5" zHalfNm="244.997" Error="4.134">
-240.91 -35.351 17.247 -6.694 2.444
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="4.673" Depth="0.123"/>
<TopsideChapman PeakHeight="377.937" PeakDensity="1487624.1" PeakScaleHeight="95.931" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
