<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-01 -305 17:00:00.000"
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 33 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.44 Confidence: 65% PACIFIC flags: 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" >
2026.11.01 (305) 17:00:00</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">
FF202630511011700009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="11.700" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.561" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="29.965" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="8.450" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="8.450" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="12.000" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="10.500" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="455.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="3.174" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="8.450" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="8.450" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.259" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="358.669" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="241.104" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.569" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="156.961" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="61.662" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="84.581" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="182.530" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.540" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="66">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 11.4 11.45 11.5 11.55 11.6 11.65 11.7
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
380.000 381.667 383.333 385.000 386.000 387.000 388.000 389.000 390.000 390.000 395.000 395.000 395.000 400.000 400.000 400.000 400.000 405.000 405.000 410.000 410.000 415.000 417.500 420.000 420.000 420.000 425.000 425.000 425.000 430.000 430.000 435.000 435.000 435.000 445.000 445.000 445.000 445.000 450.000 450.000 455.000 455.000 460.000 465.000 470.000 475.000 475.000 480.000 485.000 490.000 495.000 500.000 510.000 515.000 520.000 526.261 533.115 540.650 548.973 558.215 568.535 580.136 593.271 608.267 625.547 645.677
</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 0 0 0 57 0 51 0 45 0 57 48 57 0 57 57 57 57 57 51 57 54 54 54 54 54 54 54 54 54 51 54 54 51 54 51 48 51 51 51 51 48 51 48 48 48 48 48 48 45 42
</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 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" >
89.516 90.0 95.0 100.0 105.0 110.0 112.455 114.909 115.0 117.364 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 358.669 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.239 2.134 2.747 3.071 3.174 3.052 3.052 3.057 3.174 3.263 3.437 3.617 3.805 4.001 4.204 4.413 4.627 4.845 5.066 5.289 5.512 5.735 5.956 6.175 6.392 6.607 6.819 7.028 7.235 7.439 7.64 7.839 8.036 8.231 8.423 8.613 8.801 8.988 9.172 9.355 9.536 9.715 9.891 10.066 10.237 10.406 10.57 10.731 10.886 11.034 11.174 11.303 11.419 11.52 11.601 11.659 11.693 11.7 11.7 11.694 11.68 11.659 11.631 11.597 11.556 11.508 11.456 11.397 11.334 11.265 11.192 11.114 11.033 10.948 10.859 10.766 10.671 10.573 10.472 10.369 10.264 10.157 10.047 9.937 9.825 9.711 9.597 9.482 9.366 9.249 9.132 9.014 8.896 8.778 8.66 8.542 8.424 8.306 8.189 8.072 7.956 7.84 7.725 7.61 7.496 7.383 7.271 7.16 7.049 6.94 6.832 6.724 6.618 6.513 6.408 6.305 6.204 6.103 6.003 5.905 5.808 5.712 5.617 5.524 5.431 5.34 5.251 5.162 5.075 4.988 4.904 4.82 4.737 4.656 4.576 4.497 4.419 4.343 4.268 4.193 4.12 4.048 3.978 3.908 3.839 3.772 3.706 3.64 3.576 3.513 3.451 3.39 3.329 3.27 3.212 3.155 3.099 3.044 2.989 2.936 2.883 2.832 2.781 2.731 2.682 2.634 2.587 2.54 2.495 2.45 2.405 2.362 2.32 2.278 2.237 2.196 2.156 2.117 2.079 2.042 2.005 1.968 1.933 1.898 1.863 1.829 1.796

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.174" PeakHeight="110.0" Num="3" Error="0.0">
-30.337 12.91 -3.057
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.174" EndFrequency="11.7" PeakHeight="358.669" Num="5" zHalfNm="241.104" Error="2.23">
-223.843 -29.947 18.613 -7.418 1.29
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="7.364" Depth="0.122"/>
<TopsideChapman PeakHeight="358.669" PeakDensity="1698387.1" PeakScaleHeight="84.581" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
