<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-19 -292 13:40:00.000"
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 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" >
2026.10.19 (292) 13:40:00</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">
FF202629210191340009039031101000005015000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="11.000" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.719" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="29.907" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="5.950" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="5.950" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.350" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="325.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="325.000" 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="10.550" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="462.485" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="3.358" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="5.950" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="5.950" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.346" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="334.595" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="240.703" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.317" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="122.596" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="45.847" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="69.859" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="163.790" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.230" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="102">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 10.7 10.75 10.8 10.85 10.9 10.95 11.0
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
325.000 325.000 325.000 325.000 325.000 325.000 325.000 325.000 325.000 325.000 325.000 325.000 325.000 325.000 325.000 325.000 325.000 325.000 325.000 325.000 325.000 325.000 325.000 326.926 328.853 330.779 332.705 334.632 336.558 338.484 340.410 342.337 344.263 346.189 348.116 350.042 351.968 353.895 355.821 357.747 359.674 361.600 363.526 365.453 367.379 369.305 371.231 373.158 375.084 377.010 378.937 380.863 382.789 384.716 386.642 388.568 390.495 392.421 394.347 396.273 398.200 400.126 402.052 403.979 405.905 407.831 409.758 411.684 413.610 415.537 417.463 419.389 421.316 423.242 425.168 427.094 429.021 430.947 432.873 434.800 436.726 438.652 440.579 442.505 444.431 446.358 448.284 450.210 452.136 454.198 456.560 459.291 462.485 466.273 470.836 475.000 485.000 495.000 505.000 520.000 550.000 594.779
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 63 63 0 63 66 69 69 75 75 75 75 75 72 75 72 72 72 75 72 72 72 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
</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 -2.734375 0.390625 -0.390625 2.734375 0.390625 -2.734375 0.390625 -2.734375 2.734375 -2.734375 1.171875 1.171875 1.171875 -2.734375 0.390625 -1.171875 -0.390625 1.171875 -2.734375 1.953125 1.171875 -0.390625 -1.953125 -1.171875 0.390625 0.390625 -2.734375 1.171875 -1.171875 1.171875 2.734375 1.171875 2.734375 -2.734375 -2.734375 -0.390625 -2.734375 -1.953125 1.171875 1.953125 -1.953125 -2.734375 2.734375 -2.734375 0.390625 -2.734375 -1.953125 -2.734375 -0.390625 -1.953125 2.734375 2.734375 1.171875 1.953125 -1.953125 -2.734375 1.953125 1.953125 -0.390625 -2.734375 1.171875 2.734375 -1.171875 0.390625 0.390625 -1.171875 -0.390625 0.390625 0.390625 -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" >
89.488 90.0 95.0 100.0 105.0 110.0 111.68 113.36 115.0 115.04 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 334.595 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.24 2.259 2.906 3.249 3.358 3.235 3.235 3.355 3.358 3.568 3.768 3.958 4.141 4.318 4.491 4.66 4.827 4.992 5.155 5.319 5.482 5.645 5.809 5.975 6.141 6.31 6.48 6.653 6.828 7.006 7.187 7.371 7.559 7.751 7.946 8.146 8.349 8.555 8.766 8.979 9.194 9.409 9.624 9.836 10.042 10.239 10.423 10.588 10.732 10.848 10.933 10.985 11.0 11.0 10.994 10.977 10.95 10.914 10.869 10.815 10.754 10.685 10.609 10.527 10.438 10.344 10.245 10.141 10.033 9.921 9.806 9.687 9.566 9.442 9.315 9.187 9.058 8.926 8.794 8.661 8.528 8.393 8.259 8.125 7.99 7.856 7.723 7.589 7.457 7.325 7.195 7.065 6.936 6.809 6.682 6.557 6.434 6.311 6.191 6.071 5.954 5.837 5.723 5.61 5.499 5.389 5.281 5.175 5.07 4.967 4.866 4.767 4.669 4.573 4.478 4.385 4.294 4.205 4.117 4.03 3.946 3.863 3.781 3.701 3.623 3.546 3.471 3.397 3.324 3.253 3.183 3.115 3.048 2.983 2.919 2.856 2.794 2.734 2.675 2.617 2.56 2.505 2.45 2.397 2.345 2.294 2.244 2.195 2.147 2.1 2.055 2.01 1.966 1.923 1.881 1.84 1.799 1.76 1.721 1.684 1.647 1.61 1.575 1.541 1.507 1.474 1.441 1.41 1.379 1.348 1.319 1.29 1.261 1.233 1.206 1.18 1.154 1.128 1.103 1.079 1.055 1.032 1.009 0.987 0.965 0.944 0.923

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.358" PeakHeight="110.0" Num="3" Error="0.0">
-30.478 13.117 -3.151
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.358" EndFrequency="11.0" PeakHeight="334.595" Num="5" zHalfNm="240.703" Error="2.852">
-187.385 -45.503 11.812 2.428 -0.907
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="5.04" Depth="0.123"/>
<TopsideChapman PeakHeight="334.595" PeakDensity="1501240.8" PeakScaleHeight="69.859" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
