<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-03 -307 18:50:00.000"
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" >
2026.11.03 (307) 18:50:00</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">
FF202630711031850009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="11.950" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.981" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="35.628" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="9.050" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="9.050" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="12.350" 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="11.550" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="401.922" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="2.641" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="9.050" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="9.050" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="294.556" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="223.585" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.876" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="94.569" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="38.316" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="48.985" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="115.880" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.270" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="59">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 11.75 11.8 11.85 11.9 11.95
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
360.000 362.500 365.000 360.000 360.000 360.000 360.000 370.000 367.500 365.000 365.000 365.000 365.000 365.000 365.000 365.000 365.000 365.000 370.000 370.000 370.000 370.000 370.000 370.000 371.250 372.500 373.750 375.000 376.250 377.500 378.750 380.000 380.000 380.000 380.000 380.000 380.000 380.000 380.000 380.000 385.000 385.000 385.000 390.000 391.190 392.505 393.968 395.603 397.444 399.533 401.922 404.681 407.904 411.718 416.303 421.918 428.954 438.029 450.181
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
57 0 60 60 0 0 66 0 0 0 0 66 69 0 57 60 0 63 66 60 60 69 69 66 0 0 0 66 0 0 0 0 57 0 63 60 60 0 54 0 60 0 60 57 0 0 0 60 57 54 63 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 -0.390625 -0.390625 -0.390625 0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 1.171875 1.953125 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" >
89.611 90.0 95.0 100.0 105.0 110.0 114.89 115.0 119.779 120.0 124.669 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 294.556 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.232 1.774 2.286 2.555 2.641 2.518 2.518 2.518 2.524 2.641 2.656 2.887 3.126 3.38 3.655 3.951 4.268 4.599 4.937 5.277 5.612 5.939 6.257 6.565 6.865 7.156 7.44 7.718 7.991 8.26 8.525 8.787 9.048 9.308 9.567 9.827 10.089 10.352 10.617 10.885 11.154 11.421 11.673 11.875 11.95 11.95 11.936 11.899 11.842 11.765 11.67 11.559 11.433 11.294 11.143 10.982 10.811 10.632 10.447 10.255 10.059 9.859 9.656 9.45 9.243 9.035 8.827 8.619 8.412 8.206 8.001 7.798 7.598 7.4 7.204 7.012 6.823 6.637 6.454 6.275 6.099 5.927 5.759 5.594 5.434 5.276 5.123 4.973 4.827 4.685 4.546 4.411 4.28 4.152 4.027 3.906 3.788 3.674 3.562 3.454 3.349 3.247 3.148 3.051 2.958 2.867 2.779 2.693 2.61 2.53 2.451 2.376 2.302 2.231 2.162 2.095 2.03 1.966 1.905 1.846 1.789 1.733 1.679 1.627 1.576 1.527 1.479 1.433 1.388 1.345 1.303 1.262 1.222 1.184 1.147 1.111 1.077 1.043 1.01 0.979 0.948 0.918 0.889 0.862 0.835 0.808 0.783 0.759 0.735 0.712 0.689 0.668 0.647 0.627 0.607 0.588 0.569 0.552 0.534 0.517 0.501 0.486 0.47 0.456 0.441 0.427 0.414 0.401 0.388 0.376 0.364 0.353 0.342 0.331 0.321 0.311 0.301 0.292 0.282 0.273 0.265 0.257 0.249 0.241 0.233 0.226 0.219

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="2.641" PeakHeight="110.0" Num="3" Error="0.0">
-29.862 12.221 -2.748
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="2.641" EndFrequency="11.95" PeakHeight="294.556" Num="5" zHalfNm="223.585" Error="3.252">
-146.484 -39.633 24.948 -11.202 2.484
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="14.669" Depth="0.123"/>
<TopsideChapman PeakHeight="294.556" PeakDensity="1771743.1" PeakScaleHeight="48.985" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
