<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-03 -307 19:40:00.000"
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="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 11 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.44 Confidence: 90% PACIFIC flags: 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" >
2026.11.03 (307) 19:40:00</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">
FF202630711031940009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="12.750" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.753" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="35.102" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="8.900" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="8.900" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="13.050" 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="12.300" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="456.169" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="2.203" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="8.900" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="8.900" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="340.623" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="258.578" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.699" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="114.156" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="51.823" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="58.851" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="130.730" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.440" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="78">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 11.7 11.75 11.8 11.85 11.9 11.95 12.0 12.05 12.1 12.15 12.2 12.25 12.3 12.35 12.4 12.45 12.5 12.55 12.6 12.65 12.7 12.75
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
380.000 380.000 380.000 380.000 380.000 380.000 380.000 380.000 385.000 385.000 385.000 385.000 385.000 385.000 385.000 387.500 390.000 392.500 395.000 395.000 395.000 395.000 395.000 395.000 395.000 395.000 396.667 398.333 400.000 400.000 400.000 401.667 403.333 405.000 405.000 405.000 405.000 405.000 405.000 405.000 410.000 410.000 410.000 410.000 415.000 415.000 415.000 415.000 420.000 420.000 420.000 420.000 425.000 425.000 425.000 430.000 430.000 430.000 432.500 435.000 440.000 440.000 440.000 445.000 446.688 448.595 450.768 453.266 456.169 459.582 463.654 468.595 474.718 482.504 492.737 506.786 527.273 559.940
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 0 0 0 0 57 0 69 0 0 0 63 0 0 66 0 60 0 0 63 0 0 66 66 0 0 0 57 0 0 0 57 60 57 0 63 57 57 60 0 60 54 60 54 60 57 60 57 63 63 63 63 60 57 60 60 0 60 51 57 54 0 57 54 51 54 54 51 0 57 57 54 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 -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 -1.171875 -2.734375 1.171875 2.734375
</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" >
89.707 90.0 95.0 100.0 105.0 110.0 115.0 117.113 120.0 124.225 125.0 130.0 131.338 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 340.623 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.225 1.478 1.908 2.132 2.203 2.14 2.074 2.074 2.074 2.088 2.179 2.203 2.333 2.522 2.724 2.942 3.176 3.427 3.693 3.972 4.26 4.554 4.852 5.151 5.449 5.744 6.037 6.327 6.614 6.898 7.179 7.458 7.734 8.008 8.281 8.552 8.823 9.092 9.361 9.63 9.898 10.166 10.433 10.7 10.966 11.229 11.489 11.743 11.988 12.217 12.421 12.588 12.703 12.749 12.75 12.743 12.719 12.68 12.624 12.555 12.473 12.378 12.272 12.156 12.03 11.895 11.753 11.604 11.448 11.287 11.121 10.951 10.777 10.6 10.421 10.24 10.057 9.873 9.688 9.503 9.318 9.134 8.95 8.767 8.585 8.404 8.225 8.048 7.873 7.699 7.528 7.359 7.192 7.028 6.867 6.707 6.551 6.397 6.246 6.098 5.952 5.809 5.669 5.532 5.398 5.266 5.137 5.01 4.887 4.766 4.647 4.532 4.418 4.308 4.2 4.094 3.991 3.89 3.792 3.696 3.602 3.51 3.421 3.333 3.248 3.165 3.084 3.005 2.928 2.853 2.779 2.708 2.638 2.57 2.503 2.439 2.376 2.314 2.254 2.196 2.139 2.083 2.029 1.977 1.925 1.875 1.827 1.779 1.733 1.688 1.644 1.601 1.559 1.519 1.479 1.44 1.403 1.366 1.331 1.296 1.262 1.229 1.197 1.166 1.135 1.106 1.077 1.049 1.021 0.994 0.968 0.943 0.918 0.894 0.871 0.848 0.826 0.804 0.783 0.763 0.743 0.724 0.705 0.686 0.668 0.651 0.634

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="2.203" PeakHeight="110.0" Num="3" Error="0.0">
-29.357 11.511 -2.447
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="2.203" EndFrequency="12.75" PeakHeight="340.623" Num="5" zHalfNm="258.578" Error="2.635">
-189.156 -34.5 22.141 -9.588 1.818
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="21.338" Depth="0.129"/>
<TopsideChapman PeakHeight="340.623" PeakDensity="2016904.5" PeakScaleHeight="58.851" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
