<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-02 -306 21:00:00.000"
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 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" >
2026.11.02 (306) 21:00:00</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">
FF202630611022100009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="10.350" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.387" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="24.703" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="8.550" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="8.550" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="10.650" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="460.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="460.000" 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="9.800" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="556.667" 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="0.810" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="8.550" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="8.550" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="438.657" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="345.848" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.113" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="134.406" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="39.203" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="69.236" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="136.380" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.910" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="37">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
460.000 466.667 473.333 480.000 480.000 490.000 485.000 490.000 495.000 500.000 502.500 505.000 510.000 510.000 515.000 525.000 525.000 530.000 535.000 540.000 545.000 545.000 545.000 550.000 553.333 556.667 560.000 565.000 572.521 580.751 589.793 599.774 610.850 623.209 637.090 652.792 670.698
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 0 0 57 0 54 0 63 0 0 0 0 54 66 69 60 0 69 0 0 54 0 0 0 0 0 66 0 0 63 0 0 0 0 0 0 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-1.953125 -1.953125 -1.953125 -1.953125 -1.953125 -1.953125 -1.953125 -1.953125 -1.953125 -1.953125 2.734375 -1.953125 -1.953125 -1.953125 -1.953125 -1.953125 -1.953125 -1.953125 -1.953125 -1.953125 -1.953125 -1.953125 -1.953125 -1.953125 -1.953125 0.390625 -1.953125 -1.953125 -1.953125 -1.953125 -2.734375 1.953125 -1.171875 2.734375 2.734375 -1.171875 -0.390625
</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" >
90.529 95.0 100.0 105.0 110.0 115.0 120.0 125.0 130.0 132.715 135.0 140.0 145.0 150.0 155.0 155.431 160.0 165.0 170.0 175.0 178.146 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 438.657 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.538 0.702 0.784 0.81 0.797 0.758 0.687 0.574 0.484 0.484 0.484 0.484 0.484 0.484 0.484 0.55 0.621 0.693 0.765 0.81 0.846 0.941 1.037 1.136 1.24 1.35 1.466 1.59 1.722 1.863 2.013 2.173 2.342 2.521 2.709 2.906 3.112 3.325 3.546 3.774 4.007 4.245 4.488 4.734 4.984 5.236 5.489 5.745 6.001 6.257 6.514 6.769 7.024 7.276 7.526 7.772 8.015 8.252 8.484 8.708 8.924 9.131 9.327 9.51 9.68 9.833 9.97 10.088 10.185 10.261 10.314 10.344 10.35 10.35 10.342 10.324 10.296 10.26 10.216 10.163 10.103 10.035 9.962 9.882 9.796 9.706 9.61 9.51 9.407 9.299 9.188 9.075 8.958 8.84 8.719 8.597 8.473 8.349 8.223 8.096 7.969 7.842 7.714 7.586 7.459 7.332 7.205 7.079 6.954 6.829 6.706 6.583 6.461 6.341 6.222 6.104 5.987 5.872 5.758 5.646 5.535 5.425 5.318 5.211 5.107 5.004 4.902 4.802 4.704 4.608 4.513 4.419 4.327 4.237 4.149 4.062 3.976 3.893 3.81 3.73 3.651 3.573 3.497 3.422 3.349 3.277 3.206 3.137 3.07 3.004 2.939 2.875 2.813 2.752 2.692 2.633 2.576 2.52 2.465 2.411 2.358 2.306 2.256 2.206 2.158 2.111 2.064 2.019 1.974 1.931 1.888 1.847 1.806 1.766 1.727 1.689 1.652 1.615 1.579 1.544 1.51 1.477 1.444 1.412 1.381 1.35

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.81" PeakHeight="110.0" Num="3" Error="0.0">
-25.475 6.942 -0.938
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.81" EndFrequency="10.35" PeakHeight="438.657" Num="5" zHalfNm="345.848" Error="2.721">
-255.339 -9.908 6.468 -3.436 1.704
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="68.146" Depth="0.326"/>
<TopsideChapman PeakHeight="438.657" PeakDensity="1329063.2" PeakScaleHeight="69.236" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
