<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-14 -287 15:10:00.000"
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="15.0">
<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: F2 cusps do not match</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" >
2026.10.14 (287) 15:10:00</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">
FF202628710141510009039031101000005015000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="11.300" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.310" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="26.105" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="6.000" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="6.000" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.450" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="305.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="305.000" 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="10.950" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="606.375" 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="3.395" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="6.000" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="6.000" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.363" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="396.681" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="255.111" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.918" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="183.306" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="67.611" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="99.058" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="223.540" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.410" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="107">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
305.000 310.000 310.000 305.000 305.000 310.000 310.000 310.000 310.000 310.000 310.000 310.000 310.000 315.000 315.000 315.000 315.000 315.000 317.500 320.000 320.000 323.625 327.250 330.875 334.500 338.125 341.750 345.375 349.000 352.625 356.250 359.875 363.500 367.125 370.750 374.375 378.000 381.625 385.250 388.875 392.500 396.125 399.750 403.375 407.000 410.625 414.250 417.875 421.500 425.125 428.750 432.375 436.000 439.625 443.250 446.875 450.500 454.125 457.750 461.375 465.000 468.625 472.250 475.875 479.500 483.125 486.750 490.375 494.000 497.625 501.250 504.875 508.500 512.125 515.750 519.375 523.000 526.625 530.250 533.875 537.500 541.125 544.750 548.375 552.000 555.625 559.250 562.875 566.500 570.125 573.750 577.375 581.000 584.625 588.250 591.875 595.500 599.125 602.750 606.375 610.000 625.000 641.875 660.154 680.022 701.694 725.429
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 60 60 66 66 63 0 63 0 66 0 69 69 63 0 66 69 69 0 63 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 0 0 0 0 0 0 0 0 0 51 48 48 45 48 45 45
</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 -1.953125 1.171875 1.171875 1.171875 1.953125 -0.390625 -2.734375 -2.734375 1.953125 -1.171875 2.734375 -1.171875 -2.734375 -0.390625 -0.390625 1.171875 -1.953125 -1.171875 1.171875 -2.734375 -2.734375 1.171875 1.171875 -1.953125 -1.171875 -1.171875 -1.171875 -0.390625 1.171875 1.953125 1.953125 -0.390625 1.953125 -1.171875 1.953125 -2.734375 2.734375 -2.734375 1.953125 -2.734375 -2.734375 1.953125 -0.390625 -1.171875 -1.953125 2.734375 -0.390625 -1.953125 -1.953125 1.953125 0.390625 -0.390625 1.171875 1.953125 -2.734375 1.171875 2.734375 1.171875 -2.734375 0.390625 -1.953125 0.390625 2.734375 2.734375 1.953125 1.953125 1.171875 0.390625 -1.953125 2.734375 1.171875 -0.390625 -1.953125 1.171875 -2.734375 1.953125 -0.390625 -0.390625 -1.171875 -0.390625 -0.390625 -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" >
89.483 90.0 95.0 100.0 105.0 110.0 111.53 113.06 114.59 115.0 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 396.681 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.241 2.284 2.938 3.284 3.395 3.272 3.272 3.395 3.41 3.581 3.736 3.885 4.031 4.178 4.327 4.479 4.634 4.793 4.957 5.124 5.295 5.469 5.646 5.823 6.002 6.179 6.356 6.531 6.704 6.875 7.042 7.207 7.369 7.527 7.683 7.836 7.987 8.135 8.281 8.424 8.566 8.706 8.843 8.98 9.114 9.248 9.38 9.511 9.64 9.769 9.897 10.023 10.149 10.273 10.396 10.517 10.636 10.752 10.864 10.97 11.068 11.154 11.225 11.275 11.298 11.3 11.299 11.292 11.281 11.264 11.242 11.215 11.184 11.148 11.109 11.065 11.017 10.965 10.91 10.852 10.791 10.726 10.659 10.589 10.516 10.441 10.364 10.285 10.203 10.12 10.035 9.949 9.861 9.772 9.682 9.59 9.498 9.405 9.311 9.216 9.12 9.025 8.928 8.831 8.735 8.637 8.54 8.443 8.345 8.248 8.151 8.054 7.957 7.86 7.764 7.668 7.573 7.478 7.383 7.289 7.195 7.102 7.01 6.918 6.827 6.737 6.647 6.558 6.47 6.382 6.295 6.209 6.124 6.04 5.956 5.873 5.791 5.71 5.63 5.551 5.472 5.394 5.318 5.242 5.166 5.092 5.019 4.946 4.875 4.804 4.734 4.665 4.597 4.529 4.463 4.397 4.332 4.268 4.205 4.143 4.081 4.02 3.961 3.901 3.843 3.786 3.729 3.673 3.618 3.563 3.509 3.457 3.404 3.353 3.302 3.252 3.203 3.154 3.106 3.059 3.012 2.966 2.921 2.877 2.833 2.789 2.747

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.395" PeakHeight="110.0" Num="3" Error="0.0">
-30.503 13.156 -3.17
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.395" EndFrequency="11.3" PeakHeight="396.681" Num="5" zHalfNm="255.111" Error="4.52">
-251.91 -50.911 30.073 -13.75 4.407
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="4.59" Depth="0.123"/>
<TopsideChapman PeakHeight="396.681" PeakDensity="1584243.1" PeakScaleHeight="99.058" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
