<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-01 -305 19:00:00.000"
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" >
2026.11.01 (305) 19:00:00</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">
FF202630511011900009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="11.350" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.746" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="31.166" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="8.400" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="8.400" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.700" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="360.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="360.000" 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="10.700" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="440.000" 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="2.569" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="8.400" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="8.400" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="333.572" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="237.645" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.856" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="131.481" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="48.000" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="69.976" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="145.470" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.670" 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" >
8.4 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 11.3 11.35
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
360.000 361.250 362.500 363.750 365.000 365.000 366.667 368.333 370.000 370.000 370.000 370.000 370.000 375.000 377.500 380.000 380.000 385.000 385.000 385.000 385.000 385.000 385.000 395.000 392.500 390.000 395.000 397.500 400.000 400.000 400.000 400.000 400.000 410.000 410.000 410.000 412.500 415.000 420.000 425.000 425.000 425.000 430.000 435.000 435.000 440.000 440.000 445.051 450.588 456.686 463.435 470.944 479.349 488.821 499.578 511.898 526.151 542.829 562.609 586.445
</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 69 0 0 0 57 0 66 72 63 69 57 0 69 69 0 66 69 66 63 54 69 0 66 0 63 63 60 60 60 0 57 60 60 60 63 60 57 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 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -2.734375 -1.953125 0.390625 1.171875 -2.734375 0.390625 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" >
89.626 90.0 95.0 100.0 105.0 110.0 115.0 115.24 120.0 120.479 125.0 125.719 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 333.572 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.231 1.725 2.224 2.486 2.569 2.456 2.445 2.445 2.445 2.552 2.569 2.727 2.918 3.119 3.329 3.55 3.781 4.022 4.271 4.528 4.789 5.054 5.321 5.588 5.854 6.118 6.381 6.641 6.898 7.152 7.404 7.652 7.897 8.139 8.378 8.614 8.847 9.076 9.301 9.522 9.739 9.949 10.153 10.349 10.535 10.709 10.869 11.012 11.134 11.232 11.302 11.342 11.35 11.35 11.341 11.321 11.292 11.253 11.205 11.148 11.083 11.01 10.931 10.845 10.753 10.655 10.552 10.444 10.332 10.216 10.097 9.974 9.848 9.72 9.59 9.457 9.323 9.188 9.052 8.915 8.777 8.639 8.5 8.362 8.223 8.085 7.948 7.811 7.674 7.539 7.404 7.271 7.139 7.007 6.877 6.749 6.622 6.496 6.372 6.249 6.128 6.008 5.891 5.775 5.66 5.547 5.436 5.327 5.22 5.114 5.01 4.907 4.807 4.708 4.611 4.515 4.422 4.33 4.239 4.15 4.063 3.978 3.894 3.812 3.731 3.652 3.575 3.499 3.424 3.351 3.279 3.209 3.14 3.073 3.007 2.942 2.879 2.817 2.756 2.696 2.638 2.581 2.525 2.47 2.417 2.364 2.313 2.263 2.213 2.165 2.118 2.072 2.027 1.982 1.939 1.897 1.855 1.815 1.775 1.736 1.698 1.661 1.624 1.589 1.554 1.52 1.487 1.454 1.422 1.391 1.36 1.33 1.301 1.273 1.245 1.217 1.19 1.164 1.139 1.114 1.089 1.065 1.042 1.019 0.996 0.974 0.953

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="2.569" PeakHeight="110.0" Num="3" Error="0.0">
-29.788 12.116 -2.702
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="2.569" EndFrequency="11.35" PeakHeight="333.572" Num="5" zHalfNm="237.645" Error="1.936">
-197.165 -18.467 12.024 -5.418 1.173
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="15.719" Depth="0.124"/>
<TopsideChapman PeakHeight="333.572" PeakDensity="1598294.0" PeakScaleHeight="69.976" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
