<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-14 -287 11:10:00.000"
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 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" >
2026.10.14 (287) 11:10:00</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">
FF202628710141110009039031101000005015000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="23" >
<URSI ID="00" Val="10.750" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.059" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="32.881" 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="11.050" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="280.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="280.000" 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="88" Val="10.500" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="391.788" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="2.881" 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="/" />
<URSI ID="92" Val="287.854" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="221.005" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="7.964" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="87.520" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="30.779" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="48.328" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="118.370" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.120" 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" >
5.95 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
285.000 280.000 280.000 280.000 280.000 280.000 280.000 280.000 280.000 280.000 280.000 285.000 285.000 285.000 285.000 285.000 285.000 290.000 290.000 290.000 290.000 290.000 290.000 290.000 292.500 295.000 295.000 295.000 295.000 296.709 298.418 300.128 301.837 303.546 305.255 306.965 308.674 310.383 312.092 313.802 315.511 317.220 318.929 320.639 322.348 324.057 325.766 327.476 329.185 330.894 332.603 334.313 336.022 337.731 339.440 341.150 342.859 344.568 346.277 347.987 349.696 351.405 353.114 354.824 356.533 358.242 359.951 361.661 363.370 365.079 366.788 368.498 370.207 371.916 373.625 375.335 377.044 377.335 377.657 378.015 378.416 378.866 379.378 379.963 380.639 381.428 382.362 383.485 384.861 386.585 388.809 391.788 395.985 405.000 415.000 435.000 506.634
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 72 72 75 72 72 72 72 69 69 66 72 0 75 0 69 69 72 72 69 69 69 0 66 0 69 72 69 66 66 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 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 2.734375 -0.390625 -1.953125 1.953125 -1.171875 -1.953125 -2.734375 0.390625 -0.390625 -1.953125 1.171875 1.171875 -1.171875 0.390625 0.390625 -1.171875 0.390625 1.171875 1.953125 1.171875 1.953125 -0.390625 -2.734375 1.171875 -1.171875 -1.953125 -2.734375 2.734375 -2.734375 -2.734375 -1.171875 -2.734375 2.734375 -2.734375 -2.734375 2.734375 1.953125 0.390625 1.953125 1.171875 -1.953125 1.953125 -1.171875 -1.953125 -1.171875 -1.171875 2.734375 -0.390625 -0.390625 -0.390625 -1.171875 -0.390625 -0.390625 -0.390625 -0.390625 -1.171875 0.390625
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.33" Type="vertical" >
<Tabulated Num="184">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
89.566 90.0 95.0 100.0 105.0 110.0 113.754 115.0 117.509 120.0 121.263 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 287.854 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.235 1.936 2.494 2.787 2.881 2.759 2.759 2.759 2.84 2.881 3.081 3.34 3.591 3.834 4.072 4.306 4.536 4.765 4.992 5.218 5.445 5.671 5.899 6.128 6.359 6.592 6.827 7.065 7.307 7.552 7.801 8.054 8.311 8.573 8.839 9.109 9.382 9.656 9.927 10.188 10.426 10.617 10.731 10.75 10.748 10.728 10.687 10.628 10.551 10.458 10.351 10.231 10.099 9.957 9.806 9.647 9.48 9.308 9.131 8.95 8.766 8.58 8.391 8.202 8.012 7.822 7.633 7.445 7.258 7.072 6.889 6.708 6.529 6.353 6.179 6.009 5.842 5.678 5.517 5.359 5.205 5.055 4.908 4.764 4.624 4.487 4.353 4.223 4.097 3.973 3.853 3.737 3.623 3.513 3.405 3.301 3.199 3.101 3.005 2.912 2.822 2.735 2.65 2.567 2.487 2.409 2.334 2.261 2.19 2.122 2.055 1.991 1.928 1.867 1.809 1.752 1.696 1.643 1.591 1.541 1.492 1.445 1.399 1.355 1.312 1.271 1.231 1.192 1.154 1.117 1.082 1.048 1.014 0.982 0.951 0.921 0.892 0.863 0.836 0.809 0.784 0.759 0.735 0.711 0.689 0.667 0.646 0.625 0.605 0.586 0.567 0.549 0.532 0.515 0.499 0.483 0.467 0.453 0.438 0.424 0.411 0.398 0.385 0.373 0.361 0.35 0.338 0.328 0.317 0.307 0.297 0.288 0.279 0.27 0.261 0.253 0.245 0.237 0.23 0.222 0.215 0.208 0.202

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="2.881" PeakHeight="110.0" Num="3" Error="0.0">
-30.093 12.553 -2.894
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="2.881" EndFrequency="10.75" PeakHeight="287.854" Num="5" zHalfNm="221.005" Error="1.823">
-139.172 -42.112 16.64 -1.918 -0.029
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="11.263" Depth="0.122"/>
<TopsideChapman PeakHeight="287.854" PeakDensity="1433777.9" PeakScaleHeight="48.328" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
