<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-02-14 -045 13:40:00.000"
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) 13:40:00</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">
FF202604502141340009039031101000005018000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="9.200" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.428" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="22.340" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="4.350" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="4.350" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="9.550" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="200.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="200.000" 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="0.150" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="7.350" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="410.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="3.303" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="4.350" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="4.350" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.320" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="374.459" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="223.347" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="7.183" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="192.193" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="46.992" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="105.039" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="234.960" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.470" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="98">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
200.000 200.000 200.000 205.000 210.385 215.769 221.154 226.538 231.923 237.308 242.692 248.077 253.462 258.846 264.231 269.615 275.000 280.000 285.000 290.000 295.000 300.000 305.000 308.750 312.500 316.250 320.000 320.000 322.500 325.000 330.000 330.000 332.500 335.000 337.500 340.000 340.000 342.500 345.000 345.000 350.000 350.000 350.000 355.000 360.000 360.000 365.000 365.000 370.000 370.000 375.000 380.000 380.000 385.000 390.000 395.000 400.000 405.000 405.000 410.000 410.000 420.000 420.000 425.000 430.000 435.000 445.000 450.000 455.000 460.000 470.000 475.000 480.000 490.000 495.000 505.000 510.000 515.000 525.000 535.000 545.000 550.000 555.000 560.000 565.000 570.000 580.000 585.000 591.753 599.209 607.486 616.726 627.107 638.856 652.262 667.700 685.673 706.859
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
45 45 48 45 0 0 0 0 0 0 0 0 0 0 45 0 48 0 48 45 0 48 51 0 0 0 54 54 0 54 51 54 0 51 0 48 54 45 48 54 48 54 57 60 57 60 57 60 57 60 63 63 63 66 63 63 63 60 66 66 63 63 63 60 60 60 60 63 63 60 60 60 57 57 57 57 57 57 57 57 45 51 57 57 54 54 57 57 54 54 57 54 54 57 54 48 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 -1.171875 1.953125 -2.734375 -0.390625 1.171875 -1.171875 2.734375 -1.171875 2.734375 -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 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 0.390625 0.390625 0.390625 -0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 -0.390625 0.390625 0.390625 0.390625 0.390625 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 -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" >
89.496 90.0 95.0 100.0 105.0 110.0 111.911 113.821 115.0 115.732 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 374.459 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.24 2.222 2.859 3.195 3.303 3.18 3.18 3.256 3.303 3.419 3.555 3.693 3.835 3.982 4.134 4.291 4.453 4.617 4.783 4.95 5.114 5.276 5.435 5.589 5.739 5.884 6.024 6.161 6.293 6.421 6.546 6.668 6.787 6.903 7.016 7.127 7.236 7.343 7.448 7.552 7.654 7.754 7.854 7.952 8.048 8.144 8.239 8.332 8.424 8.515 8.604 8.691 8.776 8.857 8.935 9.007 9.071 9.125 9.167 9.192 9.2 9.2 9.198 9.191 9.181 9.167 9.15 9.129 9.105 9.077 9.047 9.013 8.977 8.938 8.897 8.853 8.806 8.758 8.707 8.655 8.6 8.544 8.486 8.426 8.365 8.302 8.238 8.173 8.107 8.04 7.972 7.903 7.833 7.762 7.69 7.619 7.546 7.473 7.4 7.326 7.252 7.178 7.103 7.028 6.954 6.879 6.804 6.729 6.655 6.58 6.506 6.432 6.358 6.284 6.21 6.137 6.064 5.992 5.92 5.848 5.776 5.706 5.635 5.565 5.496 5.427 5.358 5.29 5.223 5.156 5.09 5.024 4.959 4.894 4.83 4.767 4.704 4.642 4.58 4.519 4.459 4.399 4.34 4.282 4.224 4.167 4.11 4.054 3.999 3.944 3.89 3.836 3.784 3.731 3.68 3.629 3.578 3.529 3.479 3.431 3.383 3.335 3.289 3.242 3.197 3.152 3.107 3.063 3.02 2.977 2.935 2.893 2.852 2.812 2.772 2.732 2.693 2.654 2.616 2.579 2.542 2.506 2.47 2.434 2.399 2.365 2.33

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.303" PeakHeight="110.0" Num="3" Error="0.0">
-30.437 13.057 -3.124
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.303" EndFrequency="9.2" PeakHeight="374.459" Num="5" zHalfNm="223.347" Error="9.164">
-239.153 -37.389 28.214 -13.373 2.974
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="5.732" Depth="0.123"/>
<TopsideChapman PeakHeight="374.459" PeakDensity="1050124.1" PeakScaleHeight="105.039" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
