<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-01 -305 21:30:00.000"
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) 21:30:00</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">
FF202630511012130009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="9.500" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.219" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="21.078" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="8.650" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="8.650" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="9.800" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="585.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="585.000" 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="8.650" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="585.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.409" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="8.650" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="8.650" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="509.471" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="408.125" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.845" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="148.124" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="36.129" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="76.021" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="147.580" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.990" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="18">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
585.000 592.500 600.000 605.000 610.000 615.000 620.742 627.003 633.857 641.392 649.715 658.957 669.277 680.878 694.013 709.009 726.289 746.419
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
51 0 51 57 60 57 60 60 57 57 60 63 63 63 54 48 0 51
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-1.953125 -1.953125 -1.953125 -1.953125 -2.734375 -2.734375 -2.734375 -2.734375 -2.734375 -2.734375 -2.734375 -2.734375 -2.734375 -2.734375 -2.734375 -2.734375 0.390625 -2.734375
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.33" Type="vertical" >
<Tabulated Num="187">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
92.549 95.0 100.0 105.0 110.0 115.0 120.0 125.0 130.0 135.0 139.181 140.0 145.0 150.0 155.0 160.0 165.0 168.361 170.0 175.0 180.0 185.0 190.0 195.0 197.542 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 509.471 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.27 0.354 0.396 0.409 0.404 0.39 0.366 0.328 0.271 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.212 0.248 0.283 0.319 0.355 0.391 0.409 0.433 0.482 0.534 0.588 0.647 0.709 0.775 0.846 0.922 1.004 1.091 1.184 1.283 1.389 1.501 1.62 1.746 1.878 2.018 2.164 2.317 2.476 2.642 2.814 2.991 3.175 3.363 3.557 3.755 3.958 4.165 4.375 4.588 4.805 5.023 5.244 5.466 5.689 5.913 6.136 6.359 6.58 6.8 7.016 7.229 7.439 7.643 7.841 8.032 8.216 8.391 8.557 8.712 8.855 8.987 9.105 9.209 9.298 9.371 9.428 9.469 9.493 9.5 9.5 9.495 9.483 9.463 9.436 9.403 9.363 9.318 9.266 9.21 9.148 9.082 9.011 8.937 8.858 8.777 8.692 8.604 8.513 8.42 8.325 8.228 8.129 8.028 7.927 7.824 7.72 7.615 7.509 7.403 7.297 7.19 7.084 6.977 6.871 6.764 6.658 6.553 6.447 6.343 6.239 6.136 6.033 5.932 5.831 5.731 5.632 5.534 5.438 5.342 5.247 5.154 5.061 4.97 4.88 4.791 4.704 4.617 4.532 4.448 4.365 4.284 4.203 4.124 4.046 3.97 3.894 3.82 3.747 3.676 3.605 3.536 3.468 3.401 3.335 3.27 3.206 3.144 3.083 3.022 2.963 2.905 2.848 2.792 2.737 2.683 2.63 2.578 2.527 2.477 2.428 2.38 2.332 2.286 2.24 2.196 2.152 2.109 2.067

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.409" PeakHeight="110.0" Num="3" Error="0.0">
-20.449 3.232 -0.234
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.409" EndFrequency="9.5" PeakHeight="509.471" Num="5" zHalfNm="408.125" Error="2.348">
-309.185 -6.285 4.649 -2.247 1.139
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="87.542" Depth="0.209"/>
<TopsideChapman PeakHeight="509.471" PeakDensity="1119727.0" PeakScaleHeight="76.021" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
