<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-23 -296 18:50:00.000"
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="14.0">
<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 33 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.44 Confidence: 65% PACIFIC flags: F2x cusp not found, Multiple candidates for F2o cusp, One of F2 cusps was derived from the other</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" >
2026.10.23 (296) 18:50:00</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">
FF202629610231850009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="11.900" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.656" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="31.608" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="9.850" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="9.850" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="12.400" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="415.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="415.000" 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="11.150" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="460.000" 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="2.653" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="9.850" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="9.850" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="344.153" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="241.614" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="10.353" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="140.889" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="56.213" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="74.818" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="152.950" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.740" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="42">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 11.9
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
415.000 415.000 415.000 415.000 415.000 415.000 417.000 419.000 421.000 423.000 425.000 425.000 430.000 430.000 430.000 435.000 435.000 440.000 440.000 445.000 445.000 450.000 450.000 455.000 455.000 460.000 460.000 465.000 470.000 474.867 480.192 486.042 492.501 499.667 507.665 516.647 526.807 538.393 551.728 567.240 585.511 607.346
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
60 0 0 0 60 0 0 0 0 0 0 0 0 54 0 51 0 0 51 0 51 0 48 0 0 0 0 45 51 42 0 0 0 0 0 0 0 0 0 0 0 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 2.734375 0.390625 2.734375 -1.171875 -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" >
89.609 90.0 95.0 100.0 105.0 110.0 114.83 115.0 119.661 120.0 124.491 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 344.153 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.232 1.782 2.297 2.567 2.653 2.53 2.53 2.53 2.539 2.653 2.673 2.868 3.06 3.254 3.455 3.664 3.883 4.112 4.352 4.601 4.86 5.126 5.398 5.673 5.95 6.226 6.502 6.775 7.045 7.311 7.573 7.831 8.085 8.335 8.58 8.822 9.059 9.292 9.52 9.744 9.963 10.177 10.384 10.586 10.779 10.964 11.139 11.302 11.451 11.583 11.696 11.786 11.852 11.89 11.9 11.9 11.893 11.876 11.85 11.815 11.771 11.72 11.66 11.594 11.521 11.441 11.355 11.264 11.168 11.067 10.962 10.852 10.739 10.623 10.503 10.381 10.257 10.13 10.001 9.871 9.739 9.606 9.472 9.338 9.203 9.067 8.932 8.796 8.66 8.525 8.389 8.255 8.121 7.988 7.855 7.723 7.593 7.463 7.335 7.207 7.081 6.956 6.833 6.711 6.59 6.471 6.353 6.237 6.122 6.009 5.897 5.787 5.679 5.572 5.466 5.363 5.261 5.16 5.061 4.964 4.868 4.774 4.681 4.59 4.501 4.413 4.326 4.241 4.158 4.076 3.995 3.916 3.838 3.762 3.687 3.614 3.541 3.471 3.401 3.333 3.266 3.2 3.136 3.073 3.011 2.95 2.891 2.832 2.775 2.719 2.663 2.609 2.556 2.504 2.454 2.404 2.355 2.307 2.26 2.214 2.168 2.124 2.081 2.038 1.997 1.956 1.916 1.876 1.838 1.8 1.763 1.727 1.692 1.657 1.623 1.59 1.557 1.525 1.494 1.463 1.433 1.404 1.375 1.346 1.319 1.292 1.265

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="2.653" PeakHeight="110.0" Num="3" Error="0.0">
-29.874 12.239 -2.756
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="2.653" EndFrequency="11.9" PeakHeight="344.153" Num="5" zHalfNm="241.614" Error="2.951">
-210.34 -16.296 11.0 -5.977 1.951
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="14.491" Depth="0.123"/>
<TopsideChapman PeakHeight="344.153" PeakDensity="1756947.9" PeakScaleHeight="74.818" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
