<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-02-14 -045 17:40:00.000"
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="18.0">
<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" >
2026.02.14 (045) 17:40:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.63" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-11.14" 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">
FF202604502141740009039031101000005018000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="11.650" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.569" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="29.935" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="4.450" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="4.450" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.900" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="235.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="235.000" 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="10.700" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="470.000" 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="3.150" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="4.450" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="4.450" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.247" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="364.520" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="271.135" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.367" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="123.496" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="51.021" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="68.585" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="159.480" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.240" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="145">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
4.45 4.5 4.55 4.6 4.65 4.7 4.75 4.8 4.85 4.9 4.95 5.0 5.05 5.1 5.15 5.2 5.25 5.3 5.35 5.4 5.45 5.5 5.55 5.6 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 11.65
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
235.000 240.000 240.000 244.333 248.667 253.000 257.333 261.667 266.000 270.333 274.667 279.000 283.333 287.667 292.000 296.333 300.667 305.000 305.000 310.000 312.500 315.000 317.500 320.000 320.000 322.500 325.000 320.000 322.500 325.000 325.000 330.000 330.000 330.000 330.000 335.000 335.000 335.000 335.000 335.000 337.500 340.000 340.000 340.000 340.000 345.000 345.000 345.000 345.000 350.000 350.000 355.000 355.000 355.000 355.000 355.000 355.000 355.000 360.000 360.000 360.000 360.000 365.000 365.000 365.000 365.000 370.000 370.000 372.500 375.000 377.500 380.000 380.000 382.500 385.000 385.000 387.500 390.000 390.000 395.000 395.000 395.000 395.000 400.000 405.000 405.000 405.000 410.000 410.000 410.000 410.000 410.000 415.000 420.000 421.000 422.000 423.000 424.000 425.000 425.000 425.000 430.000 430.000 430.000 432.500 435.000 437.500 440.000 440.000 441.000 442.000 443.000 444.000 445.000 445.000 450.000 452.500 455.000 455.000 455.000 455.000 457.500 460.000 465.000 470.000 470.000 475.000 480.000 483.571 487.143 490.714 494.286 497.857 501.429 505.000 510.000 515.000 521.249 528.091 535.616 543.931 553.168 563.488 575.094 588.242
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
48 48 48 0 45 0 0 0 0 48 0 48 0 0 51 0 0 57 54 57 48 54 0 48 54 0 0 51 0 54 54 51 57 57 57 54 57 57 57 57 0 60 60 60 57 63 63 63 57 66 66 63 63 66 66 66 63 57 66 63 60 54 63 63 0 57 66 63 0 0 0 66 72 60 69 69 60 66 66 60 66 69 66 66 57 66 66 60 63 66 57 63 66 54 0 63 0 0 60 63 63 60 63 60 0 0 0 45 48 0 0 0 0 57 60 54 0 48 54 57 54 0 51 51 51 51 51 48 0 0 48 0 0 0 48 48 48 48 54 57 51 45 0 42 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 2.734375 -2.734375 1.953125 -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 1.171875 -0.390625 -0.390625 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 -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 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 2.734375 1.953125 -0.390625 0.390625 0.390625 -0.390625 0.390625 0.390625 0.390625 -1.171875 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 0.390625 0.390625 0.390625 1.953125 -0.390625 -1.953125
</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" >
89.52 90.0 95.0 100.0 105.0 110.0 112.56 115.0 115.119 117.679 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 364.52 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.238 2.118 2.726 3.048 3.15 3.028 3.028 3.028 3.15 3.218 3.358 3.494 3.627 3.759 3.892 4.025 4.161 4.298 4.438 4.58 4.726 4.876 5.029 5.185 5.346 5.51 5.679 5.852 6.028 6.208 6.392 6.58 6.771 6.966 7.163 7.364 7.567 7.772 7.98 8.19 8.401 8.615 8.829 9.044 9.261 9.478 9.695 9.911 10.126 10.34 10.55 10.754 10.951 11.136 11.304 11.448 11.559 11.629 11.65 11.65 11.643 11.624 11.595 11.555 11.505 11.447 11.379 11.303 11.22 11.13 11.034 10.931 10.823 10.709 10.592 10.47 10.344 10.215 10.083 9.948 9.811 9.672 9.531 9.389 9.246 9.102 8.958 8.813 8.668 8.523 8.378 8.234 8.09 7.947 7.805 7.663 7.523 7.384 7.246 7.109 6.974 6.84 6.708 6.578 6.449 6.321 6.196 6.072 5.95 5.83 5.712 5.595 5.48 5.368 5.257 5.148 5.04 4.935 4.831 4.73 4.63 4.532 4.436 4.341 4.248 4.157 4.068 3.981 3.895 3.811 3.729 3.648 3.569 3.491 3.415 3.34 3.267 3.196 3.126 3.057 2.99 2.925 2.86 2.797 2.735 2.675 2.616 2.558 2.502 2.446 2.392 2.339 2.287 2.236 2.186 2.138 2.09 2.044 1.998 1.954 1.91 1.867 1.826 1.785 1.745 1.706 1.668 1.631 1.594 1.559 1.524 1.49 1.456 1.424 1.392 1.361 1.33 1.3 1.271 1.243 1.215 1.187 1.161 1.135 1.109 1.084 1.06

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.15" PeakHeight="110.0" Num="3" Error="0.0">
-30.318 12.882 -3.044
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.15" EndFrequency="11.65" PeakHeight="364.52" Num="5" zHalfNm="271.135" Error="4.615">
-198.783 -59.922 13.116 -2.877 1.625
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="7.679" Depth="0.122"/>
<TopsideChapman PeakHeight="364.52" PeakDensity="1683902.0" PeakScaleHeight="68.585" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
