<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-22 -295 13:50:00.000"
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="12.0">
<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: 45% PACIFIC flags: F2o cusp not found, Multiple candidates for F2x cusp, 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" >
2026.10.22 (295) 13:50:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.63" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-11.40" 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">
FF202629510221350009039031101000005012000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="10.400" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.546" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="26.478" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="6.100" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="6.100" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="10.850" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="340.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="340.000" 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="9.650" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="487.295" 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="3.368" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="6.100" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="6.100" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.350" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="362.122" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="245.203" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.376" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="151.944" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="49.976" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="86.106" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="195.890" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.350" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="87">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
340.000 340.000 340.000 340.000 340.000 340.000 341.667 343.333 345.000 345.000 350.000 355.000 357.500 360.000 360.000 360.000 360.000 365.000 365.000 365.000 370.000 375.000 375.000 375.000 380.000 380.000 385.000 385.000 390.000 390.000 395.000 395.000 395.000 400.000 400.000 405.000 405.000 405.000 405.000 407.452 409.904 412.356 414.809 417.261 419.713 422.165 424.617 427.069 429.521 431.974 434.426 436.878 439.330 441.782 444.234 446.686 449.139 451.591 454.043 456.495 458.947 461.399 463.851 466.304 468.756 471.208 473.660 476.112 478.564 481.016 484.014 487.295 490.901 494.885 499.307 504.246 510.000 515.000 525.000 530.000 540.000 555.000 565.000 585.000 605.000 630.000 664.673
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
54 57 0 63 60 60 0 0 66 60 69 66 0 60 66 69 69 66 69 69 66 60 66 63 60 63 60 60 57 63 57 63 66 72 78 75 78 75 75 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 -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 2.734375 0.390625 1.953125 2.734375 -1.171875 1.953125 0.390625 -1.171875 1.171875 0.390625 1.171875 1.953125 2.734375 -0.390625 -1.171875 -0.390625 1.171875 -0.390625 -1.171875 -0.390625 1.171875 -1.953125 1.171875 -0.390625 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" >
89.487 90.0 95.0 100.0 105.0 110.0 111.64 113.281 114.921 115.0 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 362.122 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.24 2.266 2.915 3.258 3.368 3.245 3.245 3.368 3.371 3.547 3.722 3.893 4.06 4.222 4.381 4.536 4.689 4.839 4.988 5.135 5.281 5.426 5.571 5.715 5.86 6.005 6.15 6.296 6.443 6.59 6.739 6.889 7.041 7.193 7.348 7.503 7.661 7.82 7.98 8.142 8.304 8.468 8.632 8.796 8.959 9.121 9.28 9.436 9.586 9.729 9.864 9.988 10.1 10.196 10.276 10.337 10.378 10.398 10.4 10.399 10.392 10.378 10.358 10.332 10.301 10.264 10.222 10.175 10.123 10.067 10.007 9.943 9.875 9.803 9.729 9.651 9.57 9.487 9.402 9.314 9.224 9.132 9.038 8.943 8.847 8.749 8.651 8.551 8.45 8.349 8.247 8.145 8.042 7.939 7.836 7.733 7.63 7.527 7.424 7.322 7.22 7.118 7.016 6.915 6.815 6.715 6.616 6.518 6.42 6.324 6.228 6.132 6.038 5.945 5.852 5.76 5.67 5.58 5.491 5.404 5.317 5.231 5.147 5.063 4.981 4.899 4.819 4.739 4.661 4.584 4.508 4.432 4.358 4.285 4.213 4.142 4.072 4.003 3.935 3.868 3.802 3.737 3.673 3.611 3.549 3.488 3.427 3.368 3.31 3.253 3.196 3.141 3.086 3.033 2.98 2.928 2.877 2.827 2.777 2.728 2.681 2.634 2.587 2.542 2.497 2.453 2.41 2.368 2.326 2.285 2.244 2.205 2.166 2.127 2.09 2.053 2.016 1.98 1.945 1.911 1.877 1.844 1.811 1.779 1.747 1.716 1.685

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.368" PeakHeight="110.0" Num="3" Error="0.0">
-30.485 13.128 -3.156
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.368" EndFrequency="10.4" PeakHeight="362.122" Num="5" zHalfNm="245.203" Error="2.458">
-218.699 -42.561 13.819 1.215 -0.975
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="4.921" Depth="0.123"/>
<TopsideChapman PeakHeight="362.122" PeakDensity="1341935.5" PeakScaleHeight="86.106" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
