<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-22 -295 16:50:00.000"
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="12.0">
<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" >
2026.10.22 (295) 16:50:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.63" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-11.40" 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">
FF202629510221650009039031101000005012000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="11.850" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.538" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="30.073" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="6.200" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="6.200" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="12.150" 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="0.200" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="11.100" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="495.000" 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="3.217" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="6.200" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="6.200" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.279" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="376.882" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="265.458" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.727" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="150.221" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="63.066" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="83.547" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="185.110" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.410" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="114">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 11.45 11.5 11.55 11.6 11.65 11.7 11.75 11.8 11.85
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
335.000 335.000 340.000 340.000 340.000 340.000 340.000 340.000 340.000 342.500 345.000 345.000 345.000 345.000 350.000 350.000 350.000 350.000 350.000 355.000 355.000 355.000 355.000 355.000 357.500 360.000 360.000 360.000 365.000 365.000 365.000 367.500 370.000 370.000 370.000 375.000 375.000 375.000 377.000 379.000 381.000 383.000 385.000 387.000 389.000 391.000 393.000 395.000 397.000 399.000 401.000 403.000 405.000 407.000 409.000 411.000 413.000 415.000 417.000 419.000 421.000 423.000 425.000 427.000 429.000 431.000 433.000 435.000 437.000 439.000 441.000 443.000 445.000 447.000 449.000 451.000 453.000 455.000 457.000 459.000 461.000 463.000 465.000 467.000 469.000 471.000 473.000 475.000 477.000 479.000 481.000 483.000 485.000 487.000 489.000 491.000 493.000 495.000 495.000 500.000 510.000 515.000 515.000 520.000 530.000 540.000 545.000 555.000 570.000 580.000 597.519 620.000 649.898 691.608
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
60 57 60 60 66 63 63 63 63 0 69 69 66 60 63 63 66 66 66 66 69 66 66 66 0 63 63 66 66 66 66 0 69 72 75 69 72 72 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 45 57 57 42 48 57 54 57 57 57 57 57 60 54 48 48 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 -0.390625 0.390625 -2.734375 1.171875 0.390625 -0.390625 -0.390625 2.734375 -0.390625 0.390625 1.171875 -1.953125 1.953125 2.734375 0.390625 -1.171875 1.953125 2.734375 -2.734375 0.390625 2.734375 0.390625 0.390625 1.953125 -1.171875 -1.953125 -1.953125 -0.390625 -2.734375 -1.171875 -1.171875 0.390625 1.171875 -1.953125 0.390625 -0.390625 1.171875 2.734375 2.734375 0.390625 2.734375 -2.734375 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
</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" >
89.51 90.0 95.0 100.0 105.0 110.0 112.271 114.543 115.0 116.814 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 376.882 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.239 2.164 2.784 3.112 3.217 3.095 3.095 3.12 3.217 3.335 3.519 3.699 3.876 4.05 4.221 4.389 4.556 4.721 4.884 5.047 5.21 5.373 5.536 5.7 5.864 6.03 6.197 6.365 6.535 6.707 6.881 7.057 7.236 7.417 7.6 7.787 7.975 8.167 8.361 8.558 8.757 8.959 9.162 9.367 9.572 9.777 9.981 10.184 10.382 10.576 10.763 10.941 11.109 11.264 11.405 11.529 11.634 11.72 11.785 11.828 11.848 11.85 11.848 11.839 11.822 11.798 11.767 11.728 11.683 11.632 11.576 11.513 11.446 11.373 11.296 11.214 11.128 11.039 10.946 10.849 10.75 10.648 10.543 10.436 10.326 10.215 10.102 9.988 9.872 9.755 9.637 9.518 9.399 9.279 9.158 9.037 8.916 8.795 8.674 8.553 8.432 8.312 8.192 8.073 7.954 7.836 7.718 7.601 7.485 7.37 7.256 7.143 7.031 6.92 6.809 6.7 6.593 6.486 6.38 6.276 6.173 6.071 5.97 5.871 5.772 5.675 5.58 5.485 5.392 5.3 5.21 5.12 5.032 4.946 4.86 4.776 4.693 4.611 4.531 4.451 4.373 4.296 4.221 4.146 4.073 4.001 3.93 3.86 3.791 3.724 3.657 3.592 3.528 3.464 3.402 3.341 3.281 3.222 3.164 3.107 3.051 2.996 2.941 2.888 2.836 2.784 2.734 2.684 2.635 2.587 2.54 2.494 2.448 2.404 2.36 2.317 2.275 2.233 2.192 2.152 2.113 2.074 2.036 1.999 1.962 1.926 1.891

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.217" PeakHeight="110.0" Num="3" Error="0.0">
-30.371 12.96 -3.079
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.217" EndFrequency="11.85" PeakHeight="376.882" Num="5" zHalfNm="265.458" Error="2.571">
-231.731 -40.892 11.236 2.381 -1.062
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="6.814" Depth="0.122"/>
<TopsideChapman PeakHeight="376.882" PeakDensity="1742214.6" PeakScaleHeight="83.547" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
