<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-14 -287 18:50:00.000"
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) 18:50:00</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">
FF202628710141850009039031101000005015000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="11.400" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.481" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="28.281" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="6.100" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="6.100" 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="0.150" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="10.700" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="515.000" 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="2.668" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="6.100" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="6.100" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="390.648" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="280.853" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="10.351" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="149.195" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="56.643" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="80.613" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="181.520" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.360" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="107">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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" >
340.000 340.000 340.000 345.000 346.667 348.333 350.000 351.667 353.333 355.000 356.667 358.333 360.000 355.000 358.333 361.667 365.000 365.000 365.000 367.027 369.054 371.081 373.108 375.135 377.162 379.189 381.216 383.243 385.270 387.297 389.324 391.351 393.378 395.405 397.432 399.459 401.486 403.514 405.541 407.568 409.595 411.622 413.649 415.676 417.703 419.730 421.757 423.784 425.811 427.838 429.865 431.892 433.919 435.946 437.973 440.000 442.027 444.054 446.081 448.108 450.135 452.162 454.189 456.216 458.243 460.270 462.297 464.324 466.351 468.378 470.405 472.432 474.459 476.486 478.514 480.541 482.568 484.595 486.622 488.649 490.676 492.703 494.730 496.757 498.784 500.811 502.838 504.865 506.892 508.919 510.946 512.973 515.000 520.000 524.646 529.836 535.673 542.284 549.836 558.544 568.696 580.684 595.054 612.595 634.489 662.582 699.943
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 0 69 69 0 0 0 0 0 0 0 0 69 72 0 0 72 0 69 0 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 60 57 57 60 63 66 63 63 63 66 60 63 54 42 42
</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 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -2.734375 0.390625 -0.390625 1.953125 -2.734375 1.171875 -1.171875 -0.390625 -2.734375 2.734375 -2.734375 -0.390625 0.390625 -1.953125 -1.953125 2.734375 1.171875 2.734375 -2.734375 -1.171875 -0.390625 2.734375 1.171875 2.734375 0.390625 -1.171875 -1.171875 -2.734375 -1.171875 1.953125 -2.734375 -1.171875 2.734375 -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 -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" >
89.606 90.0 95.0 100.0 105.0 110.0 114.757 115.0 119.513 120.0 124.27 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 390.648 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.233 1.792 2.31 2.581 2.668 2.545 2.545 2.545 2.558 2.668 2.692 2.859 3.027 3.195 3.362 3.53 3.698 3.865 4.033 4.2 4.368 4.535 4.703 4.872 5.04 5.209 5.379 5.549 5.72 5.892 6.065 6.238 6.412 6.588 6.764 6.942 7.12 7.3 7.481 7.662 7.845 8.03 8.215 8.401 8.588 8.775 8.963 9.152 9.34 9.528 9.715 9.9 10.083 10.262 10.436 10.604 10.763 10.912 11.046 11.164 11.261 11.334 11.381 11.4 11.4 11.397 11.385 11.366 11.339 11.305 11.264 11.216 11.162 11.102 11.037 10.967 10.891 10.811 10.727 10.638 10.546 10.45 10.352 10.25 10.146 10.039 9.93 9.819 9.706 9.592 9.476 9.359 9.241 9.123 9.003 8.883 8.763 8.642 8.522 8.401 8.28 8.16 8.04 7.92 7.801 7.682 7.564 7.447 7.33 7.214 7.1 6.986 6.873 6.761 6.65 6.541 6.432 6.325 6.218 6.113 6.01 5.907 5.806 5.706 5.607 5.51 5.414 5.319 5.226 5.134 5.043 4.953 4.865 4.778 4.693 4.608 4.526 4.444 4.363 4.284 4.207 4.13 4.055 3.98 3.907 3.836 3.765 3.696 3.628 3.561 3.495 3.43 3.366 3.304 3.242 3.182 3.123 3.064 3.007 2.951 2.896 2.841 2.788 2.736 2.684 2.634 2.584 2.536 2.488 2.441 2.395 2.35 2.305 2.262 2.219 2.177 2.136 2.095 2.055 2.016 1.978 1.941 1.904 1.867 1.832 1.797 1.763

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="2.668" PeakHeight="110.0" Num="3" Error="0.0">
-29.889 12.26 -2.765
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="2.668" EndFrequency="11.4" PeakHeight="390.648" Num="5" zHalfNm="280.853" Error="1.719">
-237.003 -46.505 19.988 -2.951 0.093
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="14.27" Depth="0.123"/>
<TopsideChapman PeakHeight="390.648" PeakDensity="1612407.0" PeakScaleHeight="80.613" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
