<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-14 -287 19:40:00.000"
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) 19:40:00</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">
FF202628710141940009039031101000005015000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="11.300" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.280" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="25.768" 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="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="11.100" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="631.646" 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="2.231" 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="/" />
<URSI ID="92" Val="424.015" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="300.902" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="10.469" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="168.664" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="60.364" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="87.685" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="193.810" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.450" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="109">
<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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
325.000 325.000 326.000 327.000 328.000 329.000 330.000 330.000 335.000 335.000 335.000 335.000 337.500 340.000 342.500 345.000 350.000 350.000 350.000 352.500 355.000 360.000 361.250 362.500 363.750 365.000 370.000 373.354 376.709 380.063 383.418 386.772 390.127 393.481 396.835 400.190 403.544 406.899 410.253 413.608 416.962 420.316 423.671 427.025 430.380 433.734 437.089 440.443 443.797 447.152 450.506 453.861 457.215 460.570 463.924 467.278 470.633 473.987 477.342 480.696 484.051 487.405 490.759 494.114 497.468 500.823 504.177 507.532 510.886 514.241 517.595 520.949 524.304 527.658 531.013 534.367 537.722 541.076 544.430 547.785 551.139 554.494 557.848 561.203 564.557 567.911 571.266 574.620 577.975 581.329 584.684 588.038 591.392 594.747 598.101 601.456 604.810 608.165 611.519 614.873 618.228 621.582 624.937 628.291 631.646 635.000 650.000 683.596 743.954
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 0 0 0 0 0 66 0 75 75 75 0 0 0 0 0 78 0 0 0 0 78 0 0 0 0 0 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 0 0 42 63 54 54 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 -1.171875 -0.390625 -0.390625 -0.390625 -0.390625 2.734375 1.953125 1.953125 -1.171875 2.734375 1.171875 1.953125 2.734375 -1.953125 -2.734375 1.171875 -2.734375 2.734375 0.390625 0.390625 2.734375 2.734375 0.390625 -1.953125 -0.390625 -1.171875 2.734375 -1.171875 2.734375 2.734375 -2.734375 -1.953125 2.734375 -1.171875 -1.953125 -1.171875 2.734375 0.390625 -2.734375 2.734375 -0.390625 -0.390625 0.390625 -1.171875 -2.734375 1.953125 2.734375 0.390625 -1.171875 -1.953125 1.171875 -1.171875 2.734375 -2.734375 0.390625 -1.953125 -1.953125 1.953125 -2.734375 -1.953125 1.953125 -1.953125 1.953125 2.734375 -1.171875 -1.171875 -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" >
89.7 90.0 95.0 100.0 105.0 110.0 115.0 116.963 120.0 123.927 125.0 130.0 130.89 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 424.015 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.226 1.497 1.932 2.159 2.231 2.166 2.103 2.103 2.103 2.123 2.215 2.231 2.362 2.508 2.648 2.788 2.929 3.072 3.22 3.373 3.531 3.694 3.862 4.035 4.212 4.393 4.577 4.763 4.951 5.139 5.326 5.513 5.699 5.883 6.066 6.247 6.426 6.604 6.779 6.952 7.124 7.295 7.463 7.63 7.796 7.961 8.124 8.287 8.448 8.608 8.768 8.927 9.085 9.242 9.399 9.555 9.709 9.863 10.016 10.167 10.315 10.461 10.603 10.74 10.869 10.989 11.095 11.184 11.25 11.29 11.3 11.3 11.295 11.283 11.265 11.24 11.209 11.173 11.13 11.083 11.03 10.973 10.911 10.845 10.775 10.701 10.624 10.543 10.459 10.372 10.283 10.191 10.096 10.0 9.902 9.802 9.7 9.597 9.492 9.387 9.28 9.173 9.065 8.956 8.847 8.738 8.628 8.518 8.408 8.298 8.188 8.078 7.969 7.86 7.751 7.643 7.535 7.428 7.321 7.215 7.11 7.006 6.902 6.8 6.698 6.597 6.497 6.398 6.299 6.202 6.106 6.011 5.917 5.824 5.732 5.641 5.551 5.463 5.375 5.289 5.203 5.119 5.036 4.954 4.873 4.793 4.714 4.636 4.56 4.484 4.41 4.336 4.264 4.193 4.123 4.053 3.985 3.918 3.852 3.787 3.723 3.66 3.598 3.537 3.477 3.417 3.359 3.302 3.245 3.19 3.135 3.081 3.028 2.976 2.925 2.874 2.825 2.776 2.728 2.681 2.635 2.589 2.544 2.5 2.457 2.414 2.372

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="2.231" PeakHeight="110.0" Num="3" Error="0.0">
-29.394 11.562 -2.468
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="2.231" EndFrequency="11.3" PeakHeight="424.015" Num="5" zHalfNm="300.902" Error="6.03">
-266.78 -47.438 30.394 -13.527 4.226
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="20.89" Depth="0.128"/>
<TopsideChapman PeakHeight="424.015" PeakDensity="1584243.1" PeakScaleHeight="87.685" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
