<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-02-14 -045 09:40:00.000"
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) 09:40:00</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">
FF202604502140940009039031101000005018000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="7.600" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.291" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="25.009" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.650" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.650" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="7.950" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="7.050" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="315.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="1.777" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.800" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.800" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="272.043" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="218.900" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="5.550" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="75.152" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="12.914" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="41.678" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="69.930" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.580" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="100">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.65 2.7 2.75 2.8 2.85 2.9 2.95 3.0 3.05 3.1 3.15 3.2 3.25 3.3 3.35 3.4 3.45 3.5 3.55 3.6 3.65 3.7 3.75 3.8 3.85 3.9 3.95 4.0 4.05 4.1 4.15 4.2 4.25 4.3 4.35 4.4 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
245.000 245.000 240.000 235.000 237.500 240.000 240.000 240.000 240.000 240.000 240.000 240.000 240.000 245.000 245.000 245.000 245.000 245.000 245.000 245.000 245.000 245.000 245.000 245.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 250.000 255.000 255.000 255.000 255.000 255.000 255.000 255.000 255.000 255.000 255.000 255.000 255.000 255.000 260.000 260.000 260.000 260.000 260.000 260.000 262.500 265.000 265.000 265.833 266.667 267.500 268.333 269.167 270.000 275.000 275.714 276.429 277.143 277.857 278.571 279.286 280.000 280.000 282.000 284.000 286.000 288.000 290.000 290.000 290.000 290.000 295.000 295.000 300.000 300.000 300.000 305.000 305.000 310.000 310.000 315.000 315.000 320.000 330.000 330.000 335.000 340.000 345.511 353.173 364.552 383.218 419.468 520.270
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
57 54 63 48 0 57 60 60 63 63 63 63 63 63 66 66 69 69 66 66 63 60 0 60 57 0 63 63 63 60 69 69 69 72 72 72 72 72 72 69 69 69 66 66 63 72 72 0 69 0 69 63 0 0 0 0 0 0 69 0 0 0 0 0 72 0 63 0 69 69 0 0 45 0 63 66 69 69 69 72 66 72 72 69 72 69 69 69 66 69 60 69 72 69 69 66 69 66 51 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 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 -1.171875
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.33" Type="vertical" >
<Tabulated Num="152">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
89.83 90.0 95.0 100.0 105.0 110.0 115.0 119.49 120.0 125.0 128.981 130.0 135.0 138.471 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 272.043 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.215 1.189 1.539 1.72 1.777 1.739 1.639 1.639 1.639 1.639 1.654 1.727 1.777 1.832 1.987 2.128 2.266 2.406 2.551 2.704 2.868 3.046 3.242 3.459 3.705 3.983 4.301 4.66 5.054 5.464 5.864 6.232 6.556 6.832 7.061 7.247 7.391 7.496 7.565 7.597 7.6 7.596 7.574 7.533 7.475 7.401 7.314 7.214 7.103 6.983 6.855 6.72 6.579 6.434 6.285 6.133 5.979 5.824 5.669 5.513 5.358 5.204 5.051 4.9 4.751 4.605 4.461 4.32 4.181 4.046 3.913 3.784 3.658 3.536 3.416 3.3 3.187 3.078 2.971 2.868 2.768 2.671 2.577 2.487 2.399 2.314 2.231 2.152 2.075 2.0 1.929 1.859 1.792 1.728 1.665 1.605 1.547 1.491 1.437 1.385 1.334 1.286 1.239 1.194 1.15 1.108 1.068 1.029 0.991 0.955 0.92 0.886 0.854 0.822 0.792 0.763 0.735 0.708 0.682 0.657 0.633 0.61 0.588 0.566 0.545 0.525 0.506 0.487 0.469 0.452 0.436 0.42 0.404 0.389 0.375 0.361 0.348 0.335 0.323 0.311 0.299 0.288 0.278 0.268 0.258 0.248 0.239 0.23 0.222 0.214 0.206

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="1.777" PeakHeight="110.0" Num="3" Error="0.0">
-28.693 10.62 -2.097
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="1.777" EndFrequency="7.6" PeakHeight="272.043" Num="5" zHalfNm="218.9" Error="3.16">
-120.376 -7.893 -9.731 3.549 0.879
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="28.471" Depth="0.138"/>
<TopsideChapman PeakHeight="272.043" PeakDensity="716625.3" PeakScaleHeight="41.678" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
