<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-03 -307 15:30:00.000"
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="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 44 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.44 Confidence: 50% PACIFIC flags: F2x cusp not found, One of F2 cusps was derived from the other, Unidentified traces above foF2</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" >
2026.11.03 (307) 15:30:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.63" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-11.41" 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">
FF202630711031530009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="11.850" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.747" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="32.556" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="9.250" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="9.250" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="12.150" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="380.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="380.000" 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="11.100" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="435.000" 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="3.356" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="9.250" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="9.250" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.345" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="318.094" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="218.062" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.048" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="131.322" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="53.071" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="70.679" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="157.080" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.450" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="53">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 11.7 11.75 11.8 11.85
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
380.000 380.000 385.000 385.000 385.000 386.250 387.500 388.750 390.000 390.000 392.500 395.000 395.000 395.000 395.000 400.000 400.000 400.000 405.000 406.429 407.857 409.286 410.714 412.143 413.571 415.000 416.429 417.857 419.286 420.714 422.143 423.571 425.000 425.000 430.000 430.000 435.000 435.000 440.000 445.000 445.000 448.858 453.167 458.012 463.498 469.762 476.982 485.395 495.323 507.217 521.724 539.811 562.990
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 54 0 0 0 0 0 0 57 0 0 54 60 0 0 57 0 57 48 0 0 0 0 0 0 0 0 0 0 0 0 0 45 54 48 0 48 48 0 51 51 51 48 0 0 57 45 0 0 54 54 0 48
</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 -2.734375 -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 -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 -1.171875 2.734375 0.390625 0.390625 -2.734375 -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" >
89.489 90.0 95.0 100.0 105.0 110.0 111.692 113.383 115.0 115.075 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 318.094 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.24 2.258 2.904 3.247 3.356 3.233 3.233 3.351 3.356 3.557 3.769 3.989 4.22 4.462 4.715 4.975 5.242 5.511 5.782 6.05 6.314 6.574 6.828 7.077 7.321 7.559 7.792 8.02 8.244 8.464 8.681 8.894 9.105 9.312 9.518 9.721 9.922 10.121 10.318 10.512 10.703 10.891 11.074 11.249 11.414 11.563 11.69 11.786 11.84 11.85 11.849 11.839 11.818 11.787 11.746 11.696 11.637 11.57 11.495 11.412 11.323 11.228 11.127 11.021 10.91 10.794 10.674 10.551 10.424 10.295 10.163 10.028 9.892 9.753 9.614 9.473 9.331 9.189 9.046 8.903 8.76 8.617 8.474 8.332 8.19 8.049 7.909 7.769 7.631 7.494 7.358 7.223 7.09 6.958 6.827 6.698 6.571 6.445 6.321 6.199 6.078 5.959 5.842 5.726 5.612 5.5 5.39 5.282 5.175 5.07 4.967 4.866 4.766 4.668 4.572 4.478 4.385 4.294 4.205 4.118 4.032 3.947 3.864 3.783 3.704 3.626 3.549 3.474 3.401 3.328 3.258 3.188 3.121 3.054 2.989 2.925 2.863 2.801 2.741 2.683 2.625 2.569 2.513 2.459 2.406 2.355 2.304 2.254 2.206 2.158 2.111 2.066 2.021 1.977 1.934 1.893 1.852 1.811 1.772 1.734 1.696 1.659 1.623 1.588 1.554 1.52 1.487 1.454 1.423 1.392 1.362 1.332 1.303 1.275 1.247 1.22 1.193 1.167 1.142 1.117 1.092 1.069 1.045 1.023 1.0 0.978 0.957

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.356" PeakHeight="110.0" Num="3" Error="0.0">
-30.476 13.115 -3.15
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.356" EndFrequency="11.85" PeakHeight="318.094" Num="5" zHalfNm="218.062" Error="2.767">
-184.215 -31.997 20.13 -8.702 1.765
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="5.075" Depth="0.123"/>
<TopsideChapman PeakHeight="318.094" PeakDensity="1742214.6" PeakScaleHeight="70.679" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
