<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-13 -286 14:20:00.000"
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="18.0">
<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 44 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.44 Confidence: 50% PACIFIC flags: F2o cusp not found, One of F2 cusps was derived from the other, F2O model cusp does not fit trace</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" >
2026.10.13 (286) 14:20:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.63" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-11.39" 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">
FF202628610131420009039031101000005018000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="10.650" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.340" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="24.921" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="5.850" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="5.850" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.050" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="310.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="310.000" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="10.000" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="567.446" 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="3.398" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="6.150" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="6.150" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.364" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="388.717" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="244.668" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.563" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="186.654" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="61.135" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="101.388" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="223.080" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.490" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="97">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
5.85 5.9 5.95 6.0 6.05 6.1 6.15 6.2 6.25 6.3 6.35 6.4 6.45 6.5 6.55 6.6 6.65 6.7 6.75 6.8 6.85 6.9 6.95 7.0 7.05 7.1 7.15 7.2 7.25 7.3 7.35 7.4 7.45 7.5 7.55 7.6 7.65 7.7 7.75 7.8 7.85 7.9 7.95 8.0 8.05 8.1 8.15 8.2 8.25 8.3 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
320.000 320.000 315.000 315.000 315.000 325.000 310.000 310.000 310.000 310.000 310.000 315.000 315.000 315.000 315.000 315.000 320.000 320.000 320.000 320.000 325.000 325.000 325.000 328.975 332.949 336.924 340.898 344.873 348.847 352.822 356.796 360.771 364.745 368.720 372.694 376.669 380.643 384.618 388.592 392.567 396.541 400.516 404.490 408.465 412.439 416.414 420.388 424.363 428.337 432.312 436.287 440.261 444.236 448.210 452.185 456.159 460.134 464.108 468.083 472.057 476.032 480.006 483.981 487.955 491.930 495.904 499.879 503.853 507.828 511.802 515.777 519.751 523.726 527.700 531.675 535.649 539.624 543.599 547.573 551.548 555.522 559.497 563.471 567.446 571.420 575.395 579.369 590.000 600.000 610.000 620.000 635.000 650.000 665.000 680.000 700.000 722.109
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 75 72 72 66 0 66 60 60 57 60 66 63 60 63 63 63 66 63 69 66 69 72 0 48 57 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 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 1.171875 -2.734375 2.734375 -1.171875 -1.171875 1.171875 -1.171875 1.953125 1.953125 0.390625 -2.734375 -1.171875 -0.390625 1.953125 1.171875 0.390625 -1.171875 -1.953125 -1.953125 2.734375 -1.953125 0.390625 -2.734375 1.953125 0.390625 -1.953125 1.953125 2.734375 -1.953125 1.171875 2.734375 1.953125 2.734375 -2.734375 0.390625 -0.390625 -1.953125 -1.953125 1.171875 1.171875 1.171875 -1.171875 -1.171875 -1.953125 2.734375 -2.734375 -2.734375 -0.390625 2.734375 2.734375 2.734375 2.734375 -2.734375 1.171875 1.953125 -1.953125 -1.953125 1.171875 0.390625 2.734375 1.171875 1.171875 1.171875 0.390625 1.171875 -2.734375 2.734375
</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" >
89.483 90.0 95.0 100.0 105.0 110.0 111.518 113.035 114.553 115.0 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 388.717 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.241 2.286 2.941 3.287 3.398 3.275 3.275 3.398 3.414 3.579 3.727 3.87 4.01 4.15 4.292 4.437 4.586 4.74 4.897 5.06 5.226 5.395 5.568 5.741 5.916 6.089 6.262 6.432 6.6 6.765 6.927 7.085 7.24 7.392 7.54 7.686 7.828 7.968 8.105 8.24 8.373 8.503 8.632 8.758 8.883 9.006 9.128 9.248 9.367 9.484 9.6 9.714 9.826 9.936 10.043 10.147 10.247 10.341 10.427 10.504 10.568 10.616 10.644 10.65 10.65 10.646 10.637 10.624 10.606 10.584 10.557 10.527 10.492 10.454 10.413 10.367 10.319 10.267 10.213 10.155 10.095 10.033 9.968 9.901 9.831 9.76 9.687 9.612 9.535 9.457 9.378 9.297 9.215 9.132 9.048 8.963 8.877 8.79 8.703 8.615 8.527 8.439 8.35 8.26 8.171 8.081 7.992 7.902 7.812 7.723 7.633 7.544 7.455 7.366 7.278 7.19 7.102 7.014 6.928 6.841 6.755 6.67 6.585 6.5 6.417 6.333 6.251 6.169 6.088 6.007 5.927 5.848 5.77 5.692 5.615 5.539 5.463 5.389 5.315 5.242 5.169 5.097 5.027 4.956 4.887 4.818 4.751 4.684 4.617 4.552 4.487 4.423 4.36 4.298 4.236 4.175 4.115 4.056 3.997 3.939 3.882 3.826 3.77 3.715 3.661 3.608 3.555 3.503 3.451 3.401 3.351 3.301 3.253 3.205 3.157 3.11 3.064 3.019 2.974 2.93 2.886 2.844 2.801 2.759 2.718 2.678 2.638

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.398" PeakHeight="110.0" Num="3" Error="0.0">
-30.505 13.159 -3.171
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.398" EndFrequency="10.65" PeakHeight="388.717" Num="5" zHalfNm="244.668" Error="5.223">
-248.548 -43.004 25.728 -12.726 4.386
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="4.553" Depth="0.123"/>
<TopsideChapman PeakHeight="388.717" PeakDensity="1407227.0" PeakScaleHeight="101.388" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
