<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-02 -306 20:30:00.000"
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 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" >
2026.11.02 (306) 20:30:00</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">
FF202630611022030009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="11.400" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.369" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="27.001" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="8.350" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="8.350" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.700" 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="0.300" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="10.650" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="550.000" 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="1.436" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="8.350" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="8.350" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="419.266" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="315.102" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.362" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="148.420" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="52.753" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="75.891" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="158.070" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.680" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="62">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
8.35 8.4 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
435.000 435.000 437.500 440.000 442.500 445.000 447.500 450.000 452.500 455.000 455.000 460.000 460.000 460.000 465.000 465.000 470.000 470.000 475.000 480.000 480.000 480.000 482.500 485.000 485.000 490.000 493.571 497.143 500.714 504.286 507.857 511.429 515.000 515.000 515.000 515.000 517.500 520.000 530.000 530.000 530.000 530.000 540.000 540.000 545.000 550.000 550.000 560.000 565.000 568.743 572.839 577.340 582.311 587.829 593.989 600.910 608.743 617.680 627.972 639.954 654.078 670.976
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 0 0 0 0 0 0 0 0 51 0 0 60 0 0 0 63 54 45 57 0 0 0 0 0 0 0 0 0 0 48 0 63 0 0 0 60 60 60 60 63 57 54 54 60 54 57 48 45 54 54 48 51 57 57 51 45 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 -0.390625 -1.171875 -0.390625 -0.390625 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" >
89.965 90.0 95.0 100.0 105.0 110.0 115.0 120.0 121.744 125.0 130.0 133.489 135.0 140.0 145.0 145.233 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 419.266 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.203 0.96 1.244 1.39 1.436 1.41 1.329 1.286 1.286 1.286 1.286 1.305 1.369 1.433 1.436 1.556 1.677 1.798 1.922 2.051 2.186 2.329 2.48 2.641 2.811 2.992 3.182 3.381 3.589 3.804 4.024 4.249 4.477 4.706 4.937 5.168 5.398 5.627 5.855 6.082 6.307 6.531 6.753 6.974 7.193 7.411 7.628 7.843 8.057 8.269 8.48 8.69 8.897 9.104 9.308 9.509 9.708 9.903 10.094 10.28 10.459 10.63 10.791 10.94 11.073 11.188 11.281 11.349 11.389 11.4 11.4 11.394 11.378 11.354 11.322 11.281 11.233 11.178 11.116 11.048 10.973 10.893 10.808 10.718 10.624 10.525 10.423 10.317 10.208 10.096 9.981 9.864 9.745 9.624 9.502 9.378 9.253 9.127 9.0 8.872 8.745 8.616 8.488 8.36 8.232 8.104 7.977 7.85 7.724 7.598 7.473 7.349 7.226 7.104 6.983 6.863 6.745 6.627 6.511 6.396 6.282 6.17 6.059 5.95 5.842 5.735 5.63 5.526 5.424 5.323 5.224 5.126 5.03 4.935 4.842 4.75 4.66 4.571 4.483 4.397 4.313 4.229 4.148 4.067 3.989 3.911 3.835 3.76 3.686 3.614 3.543 3.474 3.405 3.338 3.272 3.208 3.144 3.082 3.021 2.961 2.902 2.844 2.788 2.732 2.678 2.624 2.572 2.52 2.47 2.42 2.372 2.324 2.278 2.232 2.187 2.143 2.1 2.058 2.016 1.976 1.936 1.897 1.858 1.821 1.784 1.748 1.713

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="1.436" PeakHeight="110.0" Num="3" Error="0.0">
-27.97 9.694 -1.759
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="1.436" EndFrequency="11.4" PeakHeight="419.266" Num="5" zHalfNm="315.102" Error="3.819">
-258.599 -27.557 19.088 -10.613 3.648
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="35.233" Depth="0.15"/>
<TopsideChapman PeakHeight="419.266" PeakDensity="1612407.0" PeakScaleHeight="75.891" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
