<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-14 -287 18:30:00.000"
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: 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) 18:30:00</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">
FF202628710141830009039031101000005015000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="11.350" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.435" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="27.635" 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="11.650" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="335.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="335.000" 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="10.900" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="550.000" 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="2.798" 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="/" />
<URSI ID="92" Val="396.521" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="278.389" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="10.275" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="159.678" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="59.985" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="86.500" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="192.280" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.400" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="108">
<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 10.85 10.9 10.95 11.0 11.05 11.1 11.15 11.2 11.25 11.3 11.35
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
335.000 335.000 335.000 337.500 340.000 340.000 340.000 340.000 345.000 346.667 348.333 350.000 350.000 350.000 350.000 351.667 353.333 355.000 356.667 358.333 360.000 360.000 360.000 362.500 365.000 367.500 370.000 372.500 375.000 377.500 380.000 382.500 385.000 387.500 390.000 392.500 395.000 397.500 400.000 402.500 405.000 407.500 410.000 412.500 415.000 417.500 420.000 422.500 425.000 427.500 430.000 432.500 435.000 437.500 440.000 442.500 445.000 447.500 450.000 452.500 455.000 457.500 460.000 462.500 465.000 467.500 470.000 472.500 475.000 477.500 480.000 482.500 485.000 487.500 490.000 492.500 495.000 497.500 500.000 502.500 505.000 507.500 510.000 512.500 515.000 517.500 520.000 522.500 525.000 527.500 530.000 532.500 535.000 537.500 540.000 542.500 545.000 547.500 550.000 555.000 565.000 580.000 590.000 603.744 620.902 642.929 672.237 713.153
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
63 0 72 0 0 66 0 72 66 0 0 63 69 72 72 0 0 0 0 0 72 72 0 0 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 54 57 57 57 54 51 51 48 48 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 -1.953125 -0.390625 1.953125 -0.390625 -1.171875 -2.734375 -0.390625 2.734375 2.734375 2.734375 1.171875 -1.171875 1.171875 -2.734375 -1.953125 -1.953125 -0.390625 -1.171875 2.734375 0.390625 1.171875 -2.734375 1.171875 1.953125 -0.390625 -2.734375 -1.953125 -0.390625 -1.171875 2.734375 -2.734375 -1.171875 -0.390625 1.171875 -0.390625 0.390625 2.734375 -1.953125 -2.734375 -0.390625 -2.734375 1.171875 -1.953125 1.171875 2.734375 2.734375 -1.171875 -1.953125 -2.734375 1.171875 -2.734375 -1.171875 1.953125 -0.390625 -0.390625 -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="188">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
89.581 90.0 95.0 100.0 105.0 110.0 114.138 115.0 118.277 120.0 122.415 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 396.521 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.234 1.88 2.422 2.707 2.798 2.676 2.676 2.676 2.727 2.798 2.885 3.051 3.214 3.376 3.538 3.699 3.861 4.023 4.185 4.348 4.511 4.675 4.84 5.005 5.171 5.337 5.504 5.672 5.84 6.009 6.179 6.349 6.52 6.691 6.863 7.036 7.209 7.383 7.557 7.732 7.907 8.082 8.258 8.434 8.611 8.787 8.963 9.139 9.315 9.489 9.662 9.833 10.002 10.168 10.33 10.486 10.636 10.778 10.909 11.028 11.132 11.219 11.285 11.329 11.349 11.35 11.348 11.34 11.324 11.302 11.273 11.238 11.198 11.151 11.1 11.043 10.982 10.916 10.846 10.772 10.694 10.613 10.529 10.441 10.351 10.257 10.162 10.064 9.964 9.863 9.76 9.655 9.549 9.441 9.333 9.224 9.114 9.003 8.892 8.781 8.669 8.557 8.445 8.333 8.221 8.109 7.998 7.887 7.776 7.666 7.556 7.447 7.339 7.231 7.124 7.018 6.913 6.808 6.705 6.602 6.501 6.4 6.3 6.202 6.104 6.008 5.912 5.818 5.725 5.633 5.542 5.452 5.363 5.275 5.189 5.104 5.019 4.936 4.854 4.774 4.694 4.616 4.538 4.462 4.387 4.313 4.24 4.168 4.097 4.027 3.958 3.891 3.824 3.759 3.694 3.631 3.568 3.507 3.446 3.386 3.328 3.27 3.213 3.158 3.103 3.049 2.996 2.943 2.892 2.841 2.792 2.743 2.695 2.648 2.601 2.555 2.511 2.466 2.423 2.38 2.338 2.297 2.257 2.217 2.178 2.139 2.101

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="2.798" PeakHeight="110.0" Num="3" Error="0.0">
-30.016 12.442 -2.845
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="2.798" EndFrequency="11.35" PeakHeight="396.521" Num="5" zHalfNm="278.389" Error="1.728">
-246.376 -44.24 19.515 -3.568 0.563
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="12.415" Depth="0.122"/>
<TopsideChapman PeakHeight="396.521" PeakDensity="1598294.0" PeakScaleHeight="86.5" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
