<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-22 -295 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="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) 15:10:00</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">
FF202629510221510009039031101000005012000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="10.900" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.328" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="25.380" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="6.350" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="6.350" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.250" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="350.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="350.000" 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="10.300" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="576.252" 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="3.387" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="6.350" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="6.350" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.359" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="399.875" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="263.157" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.919" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="177.003" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="62.610" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="98.214" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="225.000" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.340" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="92">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
350.000 351.667 353.333 355.000 355.000 358.333 361.667 365.000 365.000 365.000 365.000 370.000 370.000 375.000 375.000 380.000 380.000 380.000 385.000 390.000 390.000 390.000 390.000 395.000 395.000 400.000 400.000 405.000 405.000 410.000 415.000 415.000 418.460 421.920 425.381 428.841 432.301 435.761 439.221 442.682 446.142 449.602 453.062 456.523 459.983 463.443 466.903 470.363 473.824 477.284 480.744 484.204 487.664 491.125 494.585 498.045 501.505 504.965 508.426 511.886 515.346 518.806 522.266 525.727 529.187 532.647 536.107 539.568 543.028 546.488 549.948 553.408 556.869 560.329 562.358 564.588 567.049 569.780 572.829 576.252 580.125 584.542 590.000 595.000 605.000 610.000 620.000 635.000 650.000 670.000 700.000 743.335
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 60 66 0 0 54 0 60 60 69 69 69 72 63 69 72 69 57 60 66 60 66 66 72 69 72 66 69 66 72 48 0 54 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 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 -2.734375 1.171875 1.171875 1.953125 1.953125 -1.953125 0.390625 2.734375 0.390625 2.734375 -0.390625 -1.953125 0.390625 1.953125 0.390625 2.734375 2.734375 2.734375 -0.390625 -1.953125 -2.734375 2.734375 2.734375 -1.171875 -1.171875 1.953125 1.953125 -1.953125 -2.734375 1.953125 1.953125 1.171875 -0.390625 1.953125 -0.390625 1.171875 -2.734375 -1.953125 1.953125 -1.953125 -1.171875 -1.171875 1.953125 -2.734375 1.953125 -1.171875 -0.390625 1.171875 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" >
89.484 90.0 95.0 100.0 105.0 110.0 111.563 113.125 114.688 115.0 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 399.875 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.241 2.279 2.931 3.277 3.387 3.264 3.264 3.387 3.398 3.563 3.72 3.873 4.022 4.17 4.317 4.463 4.608 4.753 4.898 5.043 5.188 5.332 5.476 5.621 5.765 5.909 6.053 6.196 6.339 6.483 6.625 6.768 6.91 7.053 7.194 7.336 7.477 7.618 7.759 7.9 8.04 8.181 8.321 8.46 8.6 8.739 8.878 9.016 9.154 9.291 9.427 9.563 9.697 9.83 9.96 10.088 10.212 10.332 10.446 10.552 10.649 10.734 10.804 10.857 10.889 10.9 10.9 10.897 10.889 10.876 10.857 10.834 10.806 10.774 10.738 10.697 10.653 10.605 10.553 10.498 10.44 10.379 10.314 10.247 10.178 10.106 10.032 9.956 9.878 9.798 9.716 9.632 9.548 9.461 9.374 9.285 9.196 9.105 9.014 8.922 8.83 8.736 8.643 8.549 8.455 8.36 8.265 8.171 8.076 7.981 7.887 7.792 7.698 7.604 7.51 7.417 7.324 7.231 7.139 7.047 6.956 6.866 6.776 6.686 6.598 6.51 6.422 6.336 6.25 6.164 6.08 5.996 5.913 5.831 5.75 5.669 5.589 5.51 5.432 5.355 5.279 5.203 5.128 5.054 4.981 4.909 4.838 4.767 4.698 4.629 4.561 4.494 4.427 4.362 4.297 4.233 4.17 4.108 4.047 3.986 3.927 3.868 3.81 3.752 3.696 3.64 3.585 3.531 3.477 3.424 3.372 3.321 3.27 3.22 3.171 3.123 3.075 3.028 2.981 2.936 2.891 2.846 2.802 2.759 2.717 2.675 2.633

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.387" PeakHeight="110.0" Num="3" Error="0.0">
-30.498 13.148 -3.166
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.387" EndFrequency="10.9" PeakHeight="399.875" Num="5" zHalfNm="263.157" Error="2.25">
-251.657 -53.35 23.931 -5.26 1.149
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="4.688" Depth="0.123"/>
<TopsideChapman PeakHeight="399.875" PeakDensity="1474069.5" PeakScaleHeight="98.214" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
