<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-14 -287 18:00:00.000"
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 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) 18:00:00</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">
FF202628710141800009039031101000005015000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="11.350" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.485" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="28.202" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="5.900" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="5.900" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.650" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="340.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="340.000" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="10.800" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="525.000" 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="2.961" 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="4.154" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="389.576" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="275.923" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="10.144" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="152.727" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="58.433" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="84.002" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="189.560" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.350" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="110">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
340.000 340.000 340.714 341.429 342.143 342.857 343.571 344.286 345.000 345.000 350.000 350.000 350.000 352.500 355.000 355.000 355.000 355.000 355.000 360.000 360.000 360.000 362.171 364.342 366.513 368.684 370.855 373.026 375.197 377.368 379.539 381.711 383.882 386.053 388.224 390.395 392.566 394.737 396.908 399.079 401.250 403.421 405.592 407.763 409.934 412.105 414.276 416.447 418.618 420.789 422.961 425.132 427.303 429.474 431.645 433.816 435.987 438.158 440.329 442.500 444.671 446.842 449.013 451.184 453.355 455.526 457.697 459.868 462.039 464.211 466.382 468.553 470.724 472.895 475.066 477.237 479.408 481.579 483.750 485.921 488.092 490.263 492.434 494.605 496.776 498.947 501.118 503.289 505.461 507.632 509.803 511.974 514.145 516.316 518.487 520.658 522.829 525.000 525.000 535.000 541.806 549.642 558.761 569.507 582.359 598.000 617.451 642.297 675.144 720.597
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
63 72 0 0 0 0 0 57 75 0 66 0 78 0 72 0 81 0 78 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 0 0 60 57 54 51 51 48 48 51 51 48 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 -2.734375 -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 2.734375 -0.390625 -2.734375 -2.734375 -0.390625 -0.390625 -0.390625 1.171875 -0.390625 -2.734375 0.390625 -0.390625 -0.390625 -0.390625 -2.734375 0.390625 -0.390625 -2.734375 -0.390625 2.734375 -1.171875 2.734375 -2.734375 -0.390625 -2.734375 -1.953125 2.734375 -1.953125 1.171875 2.734375 -2.734375 2.734375 2.734375 1.953125 -2.734375 -1.171875 1.953125 1.953125 -1.953125 2.734375 -1.953125 1.171875 1.171875 0.390625 -2.734375 -0.390625 -2.734375 1.953125 -2.734375 -2.734375 1.171875 -1.953125 1.953125 2.734375 1.953125 1.171875 -1.171875 -1.953125 -1.953125 -2.734375 1.171875 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
</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" >
89.552 90.0 95.0 100.0 105.0 110.0 113.39 115.0 116.779 120.0 120.169 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 389.576 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.236 1.99 2.563 2.865 2.961 2.839 2.839 2.839 2.955 2.961 3.122 3.287 3.45 3.612 3.772 3.931 4.088 4.245 4.401 4.557 4.713 4.869 5.024 5.181 5.337 5.494 5.652 5.811 5.971 6.132 6.294 6.457 6.622 6.788 6.956 7.124 7.295 7.467 7.641 7.816 7.993 8.171 8.351 8.532 8.714 8.897 9.081 9.264 9.448 9.631 9.812 9.991 10.167 10.338 10.503 10.659 10.806 10.94 11.06 11.162 11.244 11.303 11.339 11.35 11.35 11.345 11.333 11.314 11.288 11.255 11.216 11.171 11.12 11.063 11.002 10.935 10.864 10.789 10.71 10.627 10.54 10.45 10.357 10.262 10.163 10.063 9.96 9.855 9.749 9.641 9.531 9.42 9.309 9.196 9.082 8.968 8.854 8.739 8.624 8.508 8.393 8.278 8.163 8.048 7.933 7.819 7.705 7.592 7.48 7.368 7.257 7.147 7.037 6.929 6.821 6.714 6.609 6.504 6.4 6.298 6.196 6.096 5.997 5.898 5.801 5.706 5.611 5.518 5.425 5.334 5.245 5.156 5.069 4.982 4.897 4.814 4.731 4.65 4.57 4.491 4.413 4.336 4.261 4.186 4.113 4.041 3.97 3.9 3.832 3.764 3.697 3.632 3.568 3.504 3.442 3.381 3.32 3.261 3.203 3.146 3.089 3.034 2.98 2.926 2.873 2.822 2.771 2.721 2.672 2.624 2.576 2.53 2.484 2.439 2.395 2.351 2.309 2.267 2.225 2.185 2.145 2.106 2.068 2.03 1.993 1.957 1.921

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="2.961" PeakHeight="110.0" Num="3" Error="0.0">
-30.162 12.654 -2.94
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="2.961" EndFrequency="11.35" PeakHeight="389.576" Num="5" zHalfNm="275.923" Error="2.369">
-237.428 -47.758 16.817 -0.697 -0.341
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="10.169" Depth="0.122"/>
<TopsideChapman PeakHeight="389.576" PeakDensity="1598294.0" PeakScaleHeight="84.002" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
