<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-14 -287 11:50:00.000"
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: 95% PACIFIC flags: Multiple candidates for F2x cusp</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) 11:50:00</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">
FF202628710141150009039031101000005015000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="11.400" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.049" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="34.760" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="5.700" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="5.700" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.700" 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="390.000" 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="3.071" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="5.700" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="5.700" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.209" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="297.899" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="236.374" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="7.970" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="81.211" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="33.860" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="46.696" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="119.110" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.000" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="115">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 11.3 11.35 11.4
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
290.000 290.000 295.000 295.000 295.000 295.000 295.000 295.000 300.000 300.000 300.000 300.000 300.000 300.000 300.000 300.000 300.000 305.000 305.000 305.000 305.000 305.000 305.000 305.000 305.000 310.000 310.000 310.000 310.000 310.000 310.000 310.000 315.000 315.000 316.000 317.000 318.000 319.000 320.000 321.000 322.000 323.000 324.000 325.000 326.000 327.000 328.000 329.000 330.000 331.000 332.000 333.000 334.000 335.000 336.000 337.000 338.000 339.000 340.000 341.000 342.000 343.000 344.000 345.000 346.000 347.000 348.000 349.000 350.000 351.000 352.000 353.000 354.000 355.000 356.000 357.000 358.000 359.000 360.000 361.000 362.000 363.000 364.000 365.000 366.000 367.000 368.000 369.000 370.000 371.000 372.000 373.000 374.000 375.000 376.000 377.000 378.000 379.000 380.000 381.000 382.000 383.000 384.000 385.000 386.000 387.000 388.000 389.000 390.000 395.000 405.000 410.000 425.912 448.524 483.194
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
60 60 66 69 72 72 72 69 69 72 72 72 72 72 72 69 69 69 72 72 72 75 75 72 69 69 69 69 69 69 69 72 66 69 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 66 60 54 54 54 45 51
</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 -0.390625 0.390625 1.171875 2.734375 1.171875 -0.390625 -1.953125 1.953125 -2.734375 1.171875 -2.734375 0.390625 -1.171875 -1.171875 -0.390625 -1.953125 -2.734375 -2.734375 -2.734375 0.390625 1.953125 2.734375 2.734375 1.171875 2.734375 -0.390625 1.953125 -1.953125 1.953125 -1.953125 1.953125 -2.734375 1.953125 0.390625 1.953125 -2.734375 1.953125 1.171875 1.171875 2.734375 -1.171875 1.171875 2.734375 0.390625 2.734375 -2.734375 1.171875 -2.734375 -1.171875 -1.953125 -1.171875 0.390625 -2.734375 -1.171875 -0.390625 2.734375 1.171875 2.734375 1.953125 1.953125 1.953125 0.390625 0.390625 0.390625 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="183">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
89.534 90.0 95.0 100.0 105.0 110.0 112.903 115.0 115.807 118.71 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 297.899 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.237 2.065 2.658 2.971 3.071 2.949 2.949 2.949 3.071 3.142 3.403 3.641 3.863 4.072 4.273 4.468 4.659 4.847 5.034 5.221 5.408 5.597 5.788 5.982 6.179 6.381 6.588 6.801 7.021 7.248 7.485 7.731 7.988 8.258 8.541 8.839 9.152 9.48 9.819 10.163 10.502 10.815 11.081 11.277 11.383 11.4 11.398 11.375 11.329 11.262 11.176 11.071 10.951 10.816 10.668 10.509 10.34 10.162 9.977 9.785 9.589 9.388 9.185 8.979 8.771 8.563 8.355 8.147 7.94 7.734 7.53 7.329 7.129 6.933 6.74 6.549 6.363 6.179 6.0 5.824 5.651 5.483 5.319 5.158 5.002 4.849 4.701 4.556 4.415 4.278 4.144 4.014 3.888 3.766 3.647 3.531 3.419 3.31 3.205 3.102 3.003 2.906 2.813 2.723 2.635 2.55 2.467 2.387 2.31 2.235 2.163 2.092 2.024 1.958 1.895 1.833 1.773 1.715 1.659 1.605 1.553 1.502 1.453 1.405 1.359 1.315 1.272 1.23 1.19 1.151 1.113 1.076 1.041 1.007 0.974 0.942 0.911 0.881 0.852 0.824 0.797 0.771 0.746 0.721 0.697 0.675 0.652 0.631 0.61 0.59 0.571 0.552 0.534 0.516 0.499 0.483 0.467 0.452 0.437 0.422 0.409 0.395 0.382 0.37 0.357 0.346 0.334 0.323 0.313 0.302 0.292 0.283 0.273 0.264 0.256 0.247 0.239 0.231 0.224 0.216 0.209 0.202

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.071" PeakHeight="110.0" Num="3" Error="0.0">
-30.254 12.789 -3.001
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.071" EndFrequency="11.4" PeakHeight="297.899" Num="5" zHalfNm="236.374" Error="2.541">
-142.32 -50.823 11.139 4.302 -1.487
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="8.71" Depth="0.122"/>
<TopsideChapman PeakHeight="297.899" PeakDensity="1612407.0" PeakScaleHeight="46.696" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
