<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-22 -295 16:30:00.000"
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="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) 16:30:00</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">
FF202629510221630009039031101000005012000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="11.600" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.506" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="29.074" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="5.650" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="5.650" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="12.150" 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="0.250" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="11.000" 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="3.269" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="5.650" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="5.650" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.304" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="378.533" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="273.245" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.573" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="139.169" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="57.346" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="78.270" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="183.640" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.220" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="120">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
5.65 5.7 5.75 5.8 5.85 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 11.4 11.45 11.5 11.55 11.6
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
340.000 340.000 340.000 340.000 340.000 345.000 350.000 350.000 350.000 350.000 350.000 350.000 350.000 350.000 350.000 350.000 350.000 355.000 355.000 355.000 355.000 355.000 355.000 360.000 360.000 360.000 360.000 360.000 365.000 365.000 365.000 365.000 370.000 370.000 370.000 370.000 370.000 375.000 375.000 380.000 380.000 380.000 380.000 380.000 385.000 387.500 390.000 390.000 392.083 394.167 396.250 398.333 400.417 402.500 404.583 406.667 408.750 410.833 412.917 415.000 417.083 419.167 421.250 423.333 425.417 427.500 429.583 431.667 433.750 435.833 437.917 440.000 442.083 444.167 446.250 448.333 450.417 452.500 454.583 456.667 458.750 460.833 462.917 465.000 467.083 469.167 471.250 473.333 475.417 477.500 479.583 481.667 483.750 485.833 487.917 490.000 492.083 494.167 496.250 498.333 500.417 502.500 504.583 506.667 508.750 510.833 512.917 515.000 520.000 524.568 529.743 535.654 542.472 550.421 559.809 571.065 584.809 601.967 623.994 653.302
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 66 69 66 60 0 0 60 0 0 0 0 0 63 69 69 66 69 72 69 69 66 63 63 69 69 69 69 66 0 69 69 69 0 72 69 66 69 72 66 0 66 66 63 66 57 63 63 0 0 48 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 54 54 51 51 51 54 51 51 48 48 45 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 -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 0.390625 0.390625 0.390625 -0.390625 0.390625 0.390625 0.390625 0.390625 -1.171875 0.390625 2.734375 -2.734375 2.734375 0.390625 -1.953125 -2.734375 -0.390625 1.953125 -1.953125 -2.734375 1.953125 2.734375 0.390625 -1.953125 -1.953125 -1.953125 1.171875 1.953125 1.953125 1.953125 -2.734375 -1.171875 1.953125 0.390625 2.734375 -1.953125 1.171875 1.953125 -1.171875 -1.953125 -1.171875 -1.171875 2.734375 2.734375 1.953125 -0.390625 1.953125 1.171875 2.734375 2.734375 -1.171875 -1.171875 1.171875 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
</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" >
89.502 90.0 95.0 100.0 105.0 110.0 112.05 114.101 115.0 116.151 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 378.533 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.24 2.199 2.829 3.163 3.269 3.147 3.147 3.201 3.269 3.42 3.596 3.758 3.911 4.06 4.205 4.348 4.49 4.63 4.771 4.912 5.053 5.196 5.339 5.483 5.629 5.777 5.926 6.078 6.231 6.387 6.545 6.705 6.868 7.033 7.201 7.372 7.546 7.722 7.901 8.083 8.268 8.455 8.645 8.837 9.032 9.229 9.427 9.626 9.825 10.023 10.22 10.414 10.603 10.785 10.957 11.117 11.26 11.383 11.481 11.552 11.592 11.6 11.6 11.592 11.576 11.552 11.52 11.48 11.433 11.378 11.318 11.251 11.179 11.101 11.018 10.93 10.838 10.742 10.643 10.539 10.433 10.323 10.211 10.097 9.981 9.862 9.742 9.621 9.498 9.374 9.25 9.125 8.999 8.873 8.746 8.62 8.493 8.367 8.241 8.115 7.99 7.865 7.741 7.618 7.496 7.374 7.253 7.134 7.015 6.898 6.782 6.667 6.553 6.44 6.329 6.219 6.11 6.003 5.897 5.792 5.689 5.587 5.487 5.388 5.29 5.194 5.099 5.006 4.914 4.824 4.735 4.647 4.561 4.476 4.393 4.311 4.23 4.15 4.072 3.995 3.92 3.846 3.773 3.701 3.631 3.562 3.494 3.427 3.362 3.297 3.234 3.172 3.111 3.051 2.992 2.934 2.878 2.822 2.768 2.714 2.662 2.61 2.559 2.51 2.461 2.413 2.366 2.32 2.275 2.23 2.187 2.144 2.102 2.061 2.021 1.982 1.943 1.905 1.868 1.831 1.795 1.76 1.725 1.692 1.658 1.626 1.594

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.269" PeakHeight="110.0" Num="3" Error="0.0">
-30.411 13.019 -3.106
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.269" EndFrequency="11.6" PeakHeight="378.533" Num="5" zHalfNm="273.245" Error="3.788">
-220.297 -58.303 14.606 1.346 0.266
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="6.151" Depth="0.122"/>
<TopsideChapman PeakHeight="378.533" PeakDensity="1669478.9" PeakScaleHeight="78.27" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
