<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-01 -305 15:50:00.000"
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 22 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.44 Confidence: 70% PACIFIC flags: F2x cusp not found, 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" >
2026.11.01 (305) 15:50:00</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">
FF202630511011550009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="11.250" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.502" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="28.149" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="8.300" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="8.300" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.600" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="430.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="430.000" 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="0.250" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="10.650" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="515.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="3.333" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="8.300" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="8.300" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.334" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="361.333" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="241.505" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.154" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="153.188" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="56.620" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="82.994" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="195.920" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.280" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="60">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
430.000 431.429 432.857 434.286 435.714 437.143 438.571 440.000 440.000 445.000 446.429 447.857 449.286 450.714 452.143 453.571 455.000 455.000 457.500 460.000 460.000 460.000 460.000 460.000 465.000 465.000 465.000 470.000 470.000 470.000 475.000 480.000 480.000 480.000 485.000 485.000 485.000 485.000 490.000 495.000 495.000 500.000 500.000 505.000 510.000 510.000 515.000 515.000 525.000 525.000 530.000 540.000 545.000 551.851 559.742 568.928 579.759 592.719 608.503 628.147
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 54 0 0 48 54 60 0 0 0 0 63 63 63 60 45 57 60 60 60 60 57 57 57 54 57 51 57 57 54 57 57 54 54 54 54 54 57 51 54 51 45 42 42 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
</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" >
89.492 90.0 95.0 100.0 105.0 110.0 111.785 113.569 115.0 115.354 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 361.333 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.24 2.242 2.885 3.224 3.333 3.21 3.21 3.309 3.333 3.475 3.639 3.813 3.998 4.192 4.394 4.601 4.81 5.02 5.228 5.433 5.635 5.832 6.025 6.213 6.398 6.578 6.754 6.927 7.097 7.264 7.428 7.59 7.75 7.908 8.064 8.219 8.373 8.525 8.677 8.828 8.979 9.129 9.278 9.428 9.578 9.727 9.877 10.026 10.176 10.325 10.473 10.619 10.762 10.899 11.025 11.132 11.211 11.248 11.25 11.248 11.238 11.221 11.197 11.166 11.129 11.085 11.035 10.98 10.919 10.854 10.784 10.709 10.63 10.547 10.461 10.371 10.279 10.183 10.085 9.984 9.881 9.776 9.669 9.561 9.451 9.34 9.228 9.115 9.001 8.887 8.772 8.657 8.541 8.425 8.31 8.194 8.079 7.963 7.848 7.734 7.62 7.507 7.394 7.282 7.171 7.06 6.951 6.842 6.734 6.627 6.522 6.417 6.313 6.211 6.109 6.009 5.91 5.812 5.715 5.619 5.525 5.431 5.339 5.249 5.159 5.071 4.984 4.898 4.813 4.73 4.647 4.566 4.487 4.408 4.331 4.254 4.179 4.105 4.033 3.961 3.891 3.821 3.753 3.686 3.62 3.555 3.491 3.428 3.367 3.306 3.246 3.188 3.13 3.073 3.018 2.963 2.909 2.856 2.804 2.753 2.703 2.653 2.605 2.557 2.51 2.464 2.419 2.375 2.331 2.289 2.246 2.205 2.165 2.125 2.086 2.047 2.01 1.972 1.936 1.9 1.865 1.831 1.797 1.764 1.731 1.699 1.668

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.333" PeakHeight="110.0" Num="3" Error="0.0">
-30.46 13.091 -3.139
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.333" EndFrequency="11.25" PeakHeight="361.333" Num="5" zHalfNm="241.505" Error="3.037">
-214.988 -52.81 32.237 -11.945 1.527
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="5.354" Depth="0.123"/>
<TopsideChapman PeakHeight="361.333" PeakDensity="1570254.4" PeakScaleHeight="82.994" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
