<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-01 -305 20:00:00.000"
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 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) 20:00:00</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">
FF202630511012000009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="11.350" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.402" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="27.258" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="8.700" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="8.700" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.650" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="435.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="435.000" 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="10.250" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="510.000" 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="1.954" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="8.700" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="8.700" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="415.092" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="294.738" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.579" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="168.996" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="60.702" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="88.970" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="178.260" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.820" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="54">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
435.000 440.000 440.000 443.750 447.500 451.250 455.000 455.000 455.000 455.000 460.000 460.000 465.000 470.000 470.000 470.000 475.000 475.000 480.000 480.000 475.000 490.000 490.000 490.000 492.500 495.000 495.000 500.000 505.000 505.000 510.000 510.000 520.000 525.000 525.000 530.000 530.000 535.000 540.000 550.000 555.727 561.972 568.808 576.323 584.625 593.842 604.136 615.707 628.808 643.764 660.999 681.077 704.765 733.133
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 0 0 0 0 0 0 60 0 57 63 54 0 66 63 69 66 0 60 57 66 66 66 66 69 66 0 66 66 63 0 57 0 63 63 63 51 60 60 57 57 54 54 57 54 48 51 51 48 45 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 -1.171875 -0.390625 -0.390625 -1.171875 -1.171875 -1.171875 -1.171875 -0.390625 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875
</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" >
89.774 90.0 95.0 100.0 105.0 110.0 115.0 118.466 120.0 125.0 126.932 130.0 135.0 135.398 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 415.092 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.219 1.309 1.692 1.891 1.954 1.908 1.821 1.821 1.821 1.821 1.869 1.948 1.954 2.074 2.205 2.339 2.478 2.621 2.771 2.926 3.088 3.257 3.433 3.614 3.803 3.997 4.196 4.4 4.607 4.818 5.032 5.247 5.464 5.682 5.9 6.118 6.335 6.552 6.769 6.984 7.198 7.41 7.621 7.829 8.036 8.241 8.444 8.644 8.841 9.035 9.225 9.412 9.595 9.773 9.946 10.113 10.273 10.426 10.571 10.707 10.832 10.947 11.049 11.138 11.213 11.272 11.315 11.341 11.35 11.35 11.347 11.337 11.32 11.297 11.268 11.234 11.194 11.148 11.098 11.043 10.983 10.919 10.852 10.78 10.705 10.626 10.545 10.46 10.373 10.283 10.19 10.096 10.0 9.902 9.802 9.701 9.598 9.494 9.389 9.284 9.177 9.07 8.962 8.854 8.745 8.637 8.528 8.419 8.31 8.201 8.093 7.984 7.876 7.769 7.662 7.555 7.449 7.344 7.239 7.135 7.032 6.929 6.828 6.727 6.627 6.528 6.43 6.333 6.236 6.141 6.047 5.954 5.861 5.77 5.68 5.591 5.503 5.416 5.33 5.246 5.162 5.079 4.998 4.917 4.838 4.76 4.682 4.606 4.531 4.457 4.384 4.312 4.241 4.171 4.102 4.034 3.967 3.901 3.836 3.773 3.71 3.648 3.587 3.526 3.467 3.409 3.352 3.295 3.24 3.185 3.131 3.078 3.026 2.975 2.924 2.874 2.826 2.778 2.73 2.684 2.638 2.593 2.549 2.505 2.462 2.42 2.379

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="1.954" PeakHeight="110.0" Num="3" Error="0.0">
-28.996 11.02 -2.25
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="1.954" EndFrequency="11.35" PeakHeight="415.092" Num="5" zHalfNm="294.738" Error="2.24">
-271.256 -14.73 9.891 -5.207 1.608
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="25.398" Depth="0.133"/>
<TopsideChapman PeakHeight="415.092" PeakDensity="1598294.0" PeakScaleHeight="88.97" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
