<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-14 -287 16:00:00.000"
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) 16:00:00</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">
FF202628710141600009039031101000005015000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="10.800" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.442" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="26.374" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="6.000" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="6.000" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.150" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="325.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="325.000" 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="10.100" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="526.101" 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="3.339" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="6.000" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="6.000" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.337" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="380.499" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="251.673" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.325" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="168.360" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="58.046" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="93.063" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="207.260" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.430" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="97">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
325.000 330.000 330.000 330.000 330.000 330.000 330.000 330.000 330.000 330.000 330.000 332.000 334.000 336.000 338.000 340.000 342.500 345.000 340.000 342.908 345.816 348.724 351.631 354.539 357.447 360.355 363.263 366.171 369.078 371.986 374.894 377.802 380.710 383.618 386.525 389.433 392.341 395.249 398.157 401.065 403.972 406.880 409.788 412.696 415.604 418.512 421.419 424.327 427.235 430.143 433.051 435.959 438.866 441.774 444.682 447.590 450.498 453.406 456.313 459.221 462.129 465.037 467.945 470.853 473.760 476.668 479.576 482.484 485.392 488.300 491.207 494.115 497.023 499.931 502.839 505.747 508.654 511.562 514.470 517.378 520.286 523.194 526.101 530.000 540.000 545.000 550.000 560.000 570.000 575.000 590.000 600.000 615.000 630.000 650.000 670.000 695.201
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
63 51 0 57 0 0 63 0 66 66 66 0 0 0 0 63 0 54 66 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 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 1.171875 0.390625 -0.390625 0.390625 -1.953125 -0.390625 -1.953125 1.953125 -0.390625 -1.953125 -0.390625 1.171875 -0.390625 -1.953125 1.171875 0.390625 2.734375 2.734375 -2.734375 -2.734375 1.171875 -2.734375 1.953125 -2.734375 1.953125 1.171875 -1.953125 2.734375 -2.734375 2.734375 1.953125 2.734375 -1.953125 -1.953125 0.390625 -1.953125 -2.734375 0.390625 -0.390625 -1.171875 -0.390625 -2.734375 -1.171875 -1.171875 1.953125 -0.390625 -1.171875 -0.390625 0.390625 -2.734375 -1.171875 2.734375 -1.171875 -1.171875 -2.734375 -1.953125 1.171875 1.953125 0.390625 -0.390625 -2.734375 -1.953125 -2.734375 -1.953125 1.953125 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" >
89.491 90.0 95.0 100.0 105.0 110.0 111.758 113.517 115.0 115.275 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 380.499 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.24 2.246 2.89 3.23 3.339 3.216 3.216 3.32 3.339 3.505 3.668 3.825 3.979 4.13 4.282 4.433 4.585 4.738 4.892 5.047 5.203 5.36 5.518 5.676 5.835 5.995 6.155 6.315 6.475 6.634 6.794 6.953 7.112 7.27 7.427 7.584 7.741 7.896 8.051 8.205 8.358 8.51 8.662 8.812 8.961 9.109 9.255 9.4 9.542 9.683 9.82 9.954 10.084 10.209 10.327 10.437 10.537 10.624 10.697 10.752 10.787 10.8 10.8 10.798 10.789 10.775 10.756 10.731 10.701 10.666 10.627 10.583 10.535 10.483 10.428 10.368 10.305 10.239 10.17 10.098 10.023 9.946 9.866 9.784 9.701 9.615 9.527 9.438 9.348 9.256 9.163 9.069 8.974 8.878 8.782 8.684 8.587 8.488 8.39 8.291 8.192 8.093 7.994 7.895 7.796 7.697 7.599 7.501 7.403 7.305 7.208 7.112 7.016 6.92 6.825 6.731 6.638 6.545 6.453 6.361 6.271 6.181 6.092 6.004 5.916 5.83 5.744 5.659 5.576 5.493 5.411 5.33 5.249 5.17 5.092 5.015 4.938 4.863 4.788 4.714 4.642 4.57 4.499 4.429 4.36 4.292 4.225 4.159 4.093 4.029 3.965 3.903 3.841 3.78 3.72 3.661 3.603 3.545 3.488 3.433 3.378 3.323 3.27 3.217 3.166 3.115 3.064 3.015 2.966 2.918 2.871 2.824 2.778 2.733 2.689 2.645 2.602 2.56 2.518 2.477 2.436 2.397 2.357 2.319 2.281 2.243 2.207

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.339" PeakHeight="110.0" Num="3" Error="0.0">
-30.464 13.097 -3.142
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.339" EndFrequency="10.8" PeakHeight="380.499" Num="5" zHalfNm="251.673" Error="3.14">
-237.332 -43.561 19.063 -4.976 1.582
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="5.275" Depth="0.123"/>
<TopsideChapman PeakHeight="380.499" PeakDensity="1447146.4" PeakScaleHeight="93.063" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
