<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-03 -307 19:30:00.000"
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 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" >
2026.11.03 (307) 19:30:00</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">
FF202630711031930009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="12.300" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.906" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="35.738" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="9.100" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="9.100" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="12.550" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="375.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="375.000" 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="12.100" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="431.229" 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="2.308" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="9.100" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="9.100" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="309.788" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="239.116" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.749" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="95.912" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="40.282" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="48.365" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="115.240" 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="65">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 12.0 12.05 12.1 12.15 12.2 12.25 12.3
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
375.000 375.000 375.000 375.000 375.000 375.000 375.000 380.000 380.000 380.000 382.500 385.000 385.000 387.500 390.000 387.500 385.000 385.000 385.000 385.000 385.000 386.667 388.333 390.000 391.667 393.333 395.000 390.000 390.000 390.000 390.000 395.000 395.000 397.500 400.000 400.000 400.000 400.000 400.000 400.000 405.000 405.000 405.000 405.000 405.000 410.000 410.000 410.000 415.000 415.000 415.709 416.495 417.373 418.359 419.474 420.745 422.209 423.911 425.917 428.314 431.229 434.851 439.474 445.576 454.005
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 0 0 63 0 0 0 0 69 0 0 0 0 0 54 0 63 0 0 69 66 0 0 0 0 0 57 66 0 0 54 66 63 0 60 66 0 63 69 63 69 63 69 63 57 66 66 66 63 66 69 69 66 69 63 63 66 63 57 0 57 63 57 48 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 -2.734375 -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
</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" >
89.682 90.0 95.0 100.0 105.0 110.0 115.0 116.563 120.0 123.127 125.0 129.69 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 309.788 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.227 1.549 1.998 2.233 2.308 2.235 2.181 2.181 2.181 2.217 2.308 2.323 2.546 2.767 2.998 3.247 3.518 3.815 4.136 4.477 4.828 5.18 5.527 5.865 6.191 6.506 6.81 7.106 7.393 7.673 7.947 8.216 8.481 8.744 9.004 9.263 9.522 9.781 10.041 10.304 10.569 10.838 11.112 11.391 11.674 11.952 12.194 12.3 12.3 12.286 12.249 12.189 12.109 12.01 11.894 11.762 11.616 11.458 11.289 11.111 10.923 10.729 10.529 10.324 10.115 9.902 9.688 9.472 9.255 9.038 8.821 8.605 8.391 8.178 7.967 7.759 7.553 7.351 7.151 6.955 6.762 6.573 6.388 6.206 6.028 5.855 5.685 5.519 5.357 5.199 5.045 4.894 4.748 4.605 4.467 4.331 4.2 4.072 3.948 3.827 3.71 3.596 3.485 3.377 3.273 3.172 3.073 2.978 2.885 2.795 2.708 2.623 2.541 2.462 2.385 2.31 2.237 2.167 2.099 2.033 1.969 1.907 1.847 1.788 1.732 1.677 1.624 1.573 1.523 1.475 1.428 1.383 1.34 1.297 1.256 1.216 1.178 1.14 1.104 1.069 1.035 1.003 0.971 0.94 0.91 0.881 0.853 0.826 0.8 0.775 0.75 0.726 0.703 0.681 0.659 0.638 0.618 0.598 0.579 0.561 0.543 0.526 0.509 0.493 0.477 0.462 0.447 0.433 0.419 0.406 0.393 0.381 0.369 0.357 0.346 0.335 0.324 0.314 0.304 0.294 0.285 0.276 0.267 0.258 0.25 0.242 0.235

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="2.308" PeakHeight="110.0" Num="3" Error="0.0">
-29.49 11.696 -2.524
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="2.308" EndFrequency="12.3" PeakHeight="309.788" Num="5" zHalfNm="239.116" Error="4.085">
-154.873 -43.979 29.486 -14.539 3.807
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="19.69" Depth="0.127"/>
<TopsideChapman PeakHeight="309.788" PeakDensity="1877047.1" PeakScaleHeight="48.365" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
