<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-03 -307 04:20:00.000"
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: 45% PACIFIC flags: F2x cusp not found, Multiple candidates for F2o cusp, 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) 04:20:00</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">
FF202630711030420009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="6.600" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.176" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="20.959" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="5.250" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="5.250" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="6.850" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="305.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="305.000" 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="5.800" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="305.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="5.750" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="5.750" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="310.990" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="279.401" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="3.985" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="45.761" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="5.449" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="23.854" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="44.760" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.170" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="28">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
5.25 5.3 5.35 5.4 5.45 5.5 5.55 5.6 5.65 5.7 5.75 5.8 5.85 5.9 5.95 6.0 6.05 6.1 6.15 6.2 6.25 6.3 6.35 6.4 6.45 6.5 6.55 6.6
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
320.000 315.000 313.889 312.778 311.667 310.556 309.444 308.333 307.222 306.111 305.000 305.000 310.000 315.000 320.455 325.909 331.364 336.818 342.273 347.727 353.182 358.636 364.091 369.545 375.000 383.842 393.447 403.918
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
57 57 0 0 0 0 0 0 0 0 60 0 0 66 0 0 0 0 57 0 0 0 0 0 57 0 54 54
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
1.171875 1.171875 1.171875 1.171875 -1.171875 1.171875 1.953125 1.953125 1.171875 1.953125 1.953125 1.953125 -0.390625 1.953125 0.390625 1.953125 1.171875 2.734375 1.953125 1.953125 1.953125 1.171875 1.171875 -1.171875 1.953125 1.953125 1.953125 1.953125
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.33" Type="vertical" >
<Tabulated Num="110">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 95.0 100.0 105.0 110.0 115.0 120.0 125.0 130.0 135.0 140.0 145.0 146.944 150.0 155.0 160.0 165.0 170.0 175.0 180.0 183.887 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 220.831 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 310.99 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.234 0.307 0.343 0.354 0.352 0.345 0.334 0.317 0.294 0.263 0.221 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.205 0.225 0.246 0.267 0.288 0.309 0.33 0.351 0.354 0.466 0.63 0.83 1.073 1.363 1.708 2.111 2.57 3.08 3.625 4.184 4.731 5.241 5.691 6.063 6.343 6.523 6.598 6.6 6.582 6.515 6.405 6.26 6.086 5.89 5.677 5.453 5.221 4.986 4.75 4.515 4.285 4.059 3.84 3.629 3.425 3.23 3.043 2.865 2.696 2.535 2.383 2.239 2.102 1.974 1.853 1.738 1.631 1.529 1.434 1.345 1.261 1.182 1.108 1.038 0.973 0.912 0.854 0.8 0.75 0.702 0.658 0.617 0.578 0.541 0.507 0.475 0.445 0.417 0.39 0.365 0.342 0.321 0.3 0.281 0.263 0.247 0.231 0.216 0.203

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.354" PeakHeight="110.0" Num="3" Error="0.0">
-18.791 2.435 -0.142
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.354" EndFrequency="6.6" PeakHeight="310.99" Num="5" zHalfNm="279.401" Error="1.917">
-90.984 1.483 -1.333 0.819 -0.144
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="110.831" Depth="0.154"/>
<TopsideChapman PeakHeight="310.99" PeakDensity="540446.6" PeakScaleHeight="23.854" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
