<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-02 -306 00:40:00.000"
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 33 2 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.44 Confidence: 65% PACIFIC flags: Severe F-spread, F2x cusp not found, Multiple candidates for F2o cusp, 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" >
2026.11.02 (306) 00:40:00</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">
FF202630611020040009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="5.850" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.613" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="15.287" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="1.750" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="1.750" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="6.150" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="385.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="385.000" 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="5.500" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="475.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="1.750" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="1.750" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="422.073" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="374.289" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="6.932" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="70.379" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="6.905" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="37.467" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="83.340" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.740" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="83">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
1.75 1.8 1.85 1.9 1.95 2.0 2.05 2.1 2.15 2.2 2.25 2.3 2.35 2.4 2.45 2.5 2.55 2.6 2.65 2.7 2.75 2.8 2.85 2.9 2.95 3.0 3.05 3.1 3.15 3.2 3.25 3.3 3.35 3.4 3.45 3.5 3.55 3.6 3.65 3.7 3.75 3.8 3.85 3.9 3.95 4.0 4.05 4.1 4.15 4.2 4.25 4.3 4.35 4.4 4.45 4.5 4.55 4.6 4.65 4.7 4.75 4.8 4.85 4.9 4.95 5.0 5.05 5.1 5.15 5.2 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
385.000 385.000 385.000 390.000 395.000 396.875 398.750 400.625 402.500 404.375 406.250 408.125 410.000 410.000 410.000 410.000 410.000 410.000 410.000 410.000 410.000 410.000 410.000 410.000 410.000 410.000 410.000 410.000 410.000 405.000 405.000 405.000 398.333 391.667 385.000 386.944 388.889 390.833 392.778 394.722 396.667 398.611 400.556 402.500 404.444 406.389 408.333 410.278 412.222 414.167 416.111 418.056 420.000 421.944 423.889 425.833 427.778 429.722 431.667 433.611 435.556 437.500 439.444 441.389 443.333 445.278 447.222 449.167 451.111 453.056 455.000 455.000 460.000 467.500 475.000 475.000 482.500 490.000 497.500 506.263 516.052 527.057 539.521
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
60 63 0 60 63 63 0 60 0 69 0 57 57 57 63 69 0 0 69 0 66 0 63 0 63 0 66 66 0 69 66 66 54 60 63 66 0 0 57 57 0 54 54 0 57 0 0 57 0 60 60 63 60 0 60 0 60 57 0 57 0 0 0 0 0 0 0 54 57 63 60 57 57 0 57 57 57 0 0 57 57 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 -1.171875 -0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 1.171875 0.390625 0.390625 1.171875 -0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 1.171875 0.390625 0.390625 0.390625 -1.171875 0.390625 -0.390625 1.171875 -0.390625 1.171875 1.171875 -0.390625 0.390625 -0.390625 1.171875 1.171875 0.390625 -1.953125 1.171875 -1.171875 1.171875 1.171875 0.390625 0.390625 1.171875 1.171875 1.171875 1.171875 1.171875 -1.171875 1.171875 1.953125 -2.734375 1.953125 -0.390625 1.953125 1.953125 2.734375 1.171875 0.390625 0.390625 1.171875 0.390625 1.171875 -1.171875 0.390625 1.171875 1.171875 -1.171875 -1.171875 1.953125 1.171875 -0.390625 -0.390625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.33" Type="vertical" >
<Tabulated Num="164">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 95.0 100.0 105.0 110.0 115.0 120.0 125.0 130.0 135.0 140.0 145.0 146.702 150.0 155.0 160.0 165.0 170.0 175.0 180.0 183.405 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 220.107 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 422.073 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0
</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 0.333 0.316 0.293 0.261 0.218 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.207 0.228 0.249 0.27 0.291 0.312 0.333 0.354 0.354 0.41 0.476 0.544 0.613 0.682 0.751 0.82 0.891 0.962 1.036 1.111 1.189 1.27 1.355 1.443 1.536 1.634 1.737 1.847 1.965 2.091 2.227 2.373 2.533 2.708 2.9 3.112 3.346 3.603 3.883 4.179 4.482 4.776 5.046 5.281 5.476 5.628 5.74 5.813 5.847 5.85 5.847 5.826 5.787 5.733 5.664 5.583 5.491 5.39 5.281 5.165 5.044 4.919 4.79 4.659 4.527 4.394 4.261 4.128 3.996 3.865 3.737 3.61 3.485 3.363 3.244 3.128 3.014 2.904 2.796 2.692 2.591 2.493 2.398 2.306 2.217 2.131 2.048 1.968 1.891 1.817 1.745 1.676 1.61 1.546 1.484 1.425 1.368 1.313 1.261 1.21 1.161 1.114 1.07 1.026 0.985 0.945 0.907 0.87 0.835 0.801 0.768 0.737 0.707 0.679 0.651 0.625 0.599 0.575 0.551 0.529 0.507 0.487 0.467 0.448 0.43 0.412 0.395 0.379 0.364 0.349 0.335 0.321 0.308 0.295 0.283 0.272 0.261 0.25 0.24 0.23 0.221 0.212 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="5.85" PeakHeight="422.073" Num="5" zHalfNm="374.289" Error="6.627">
-173.667 -37.143 2.456 10.288 -3.9
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="110.107" Depth="0.154"/>
<TopsideChapman PeakHeight="422.073" PeakDensity="424596.78" PeakScaleHeight="37.467" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
