<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-01 -305 16:10:00.000"
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 22 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.44 Confidence: 70% PACIFIC flags: F2x cusp not found, 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) 16:10:00</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">
FF202630511011610009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="11.600" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.452" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="28.448" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="9.000" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="9.000" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="12.050" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="430.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="430.000" 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="10.500" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="495.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Custom Name="dlt foF2" Val="0.000" Description="Adjustment to the scaled foF2 during profile inversion" Units="MHz" />
<Modeled Name="foEp" Val="3.299" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="9.000" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="9.000" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.318" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="381.122" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="246.945" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.268" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="179.807" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="69.392" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="97.483" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="204.200" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.660" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="53">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
430.000 430.000 432.143 434.286 436.429 438.571 440.714 442.857 445.000 445.000 450.000 452.500 455.000 455.000 460.000 461.000 462.000 463.000 464.000 465.000 470.000 475.000 475.000 475.000 480.000 480.000 490.000 490.000 490.000 495.000 495.000 505.000 510.000 515.000 520.000 525.000 525.000 530.000 535.000 539.752 545.026 550.911 557.520 564.996 573.522 583.335 594.750 608.196 624.265 643.810 668.095 699.082 739.989
</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 57 51 0 48 0 0 60 54 60 57 57 57 54 51 54 54 54 54 54 51 51 51 48 54 51 51 51 51 51 48 51 51 51 51 48 45 45 42 0 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 1.171875 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" >
89.497 90.0 95.0 100.0 105.0 110.0 111.925 113.851 115.0 115.776 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 381.122 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.24 2.219 2.855 3.192 3.299 3.177 3.177 3.25 3.299 3.429 3.588 3.751 3.919 4.093 4.272 4.456 4.645 4.837 5.033 5.231 5.431 5.632 5.833 6.033 6.233 6.431 6.628 6.824 7.017 7.208 7.397 7.584 7.769 7.952 8.133 8.311 8.488 8.662 8.834 9.004 9.173 9.338 9.502 9.663 9.822 9.977 10.13 10.28 10.425 10.567 10.703 10.835 10.959 11.077 11.186 11.285 11.373 11.449 11.511 11.557 11.587 11.6 11.6 11.598 11.591 11.578 11.559 11.536 11.507 11.473 11.435 11.392 11.346 11.295 11.24 11.181 11.12 11.054 10.986 10.915 10.84 10.764 10.684 10.603 10.519 10.433 10.346 10.257 10.166 10.073 9.98 9.885 9.789 9.692 9.594 9.495 9.396 9.296 9.196 9.095 8.994 8.893 8.791 8.69 8.588 8.487 8.385 8.284 8.183 8.082 7.982 7.881 7.782 7.683 7.584 7.486 7.388 7.291 7.195 7.099 7.004 6.91 6.816 6.723 6.631 6.54 6.45 6.36 6.272 6.184 6.097 6.01 5.925 5.841 5.757 5.675 5.593 5.512 5.432 5.353 5.275 5.198 5.122 5.047 4.972 4.899 4.827 4.755 4.684 4.614 4.545 4.477 4.41 4.344 4.279 4.214 4.15 4.088 4.026 3.964 3.904 3.845 3.786 3.728 3.671 3.615 3.56 3.505 3.451 3.398 3.346 3.294 3.244 3.193 3.144 3.095 3.048 3.0 2.954 2.908 2.863 2.818 2.774 2.731 2.689 2.647 2.605

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.299" PeakHeight="110.0" Num="3" Error="0.0">
-30.434 13.053 -3.122
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.299" EndFrequency="11.6" PeakHeight="381.122" Num="5" zHalfNm="246.945" Error="2.087">
-250.874 -24.528 15.213 -6.369 1.212
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="5.776" Depth="0.122"/>
<TopsideChapman PeakHeight="381.122" PeakDensity="1669478.9" PeakScaleHeight="97.483" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
