<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-15 -288 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" >
2026.10.15 (288) 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">
FF202628810151110009039031101000005015000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="10.400" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.936" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="30.539" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="5.550" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="5.550" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="10.800" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="290.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="290.000" 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="9.900" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="402.237" 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="2.882" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="5.550" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="5.550" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="303.592" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="228.394" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="7.964" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="99.917" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="32.985" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="55.933" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="130.200" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.240" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="98">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
5.55 5.6 5.65 5.7 5.75 5.8 5.85 5.9 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
290.000 295.000 295.000 295.000 295.000 295.000 295.000 295.000 295.000 295.000 295.000 295.000 295.000 295.556 296.111 296.667 297.222 297.778 298.333 298.889 299.444 300.000 300.000 300.000 300.000 300.000 302.500 305.000 305.000 306.606 308.213 309.819 311.426 313.032 314.639 316.245 317.852 319.458 321.065 322.671 324.278 325.884 327.491 329.097 330.704 332.310 333.917 335.523 337.130 338.736 340.343 341.949 343.556 345.162 346.769 348.375 349.982 351.588 353.195 354.801 356.408 358.014 359.621 361.227 362.834 364.440 366.047 367.653 369.260 370.866 372.473 374.079 375.686 377.292 378.899 380.505 382.112 383.718 385.325 386.931 388.538 390.144 391.751 393.357 395.183 397.239 399.570 402.237 405.318 408.916 413.175 420.000 425.000 435.000 445.000 455.000 475.000 504.141
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 0 0 0 0 0 0 0 0 0 72 69 60 0 0 0 0 0 72 0 0 75 72 0 75 72 0 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 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 1.953125 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 1.953125 1.953125 -0.390625 -0.390625 -0.390625 0.390625 -1.171875 -0.390625 -2.734375 2.734375 -1.171875 0.390625 -2.734375 -0.390625 -0.390625 -1.171875 1.171875 0.390625 0.390625 -0.390625 1.171875 -0.390625 1.953125 -1.171875 0.390625 -2.734375 1.171875 -1.953125 1.953125 -2.734375 -0.390625 -1.171875 1.171875 -0.390625 1.953125 -0.390625 -0.390625 1.171875 2.734375 -1.171875 -0.390625 -0.390625 -0.390625 2.734375 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" >
89.566 90.0 95.0 100.0 105.0 110.0 113.751 115.0 117.502 120.0 121.253 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 303.592 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.235 1.937 2.495 2.788 2.882 2.76 2.76 2.76 2.841 2.882 3.064 3.295 3.513 3.723 3.927 4.126 4.323 4.517 4.711 4.905 5.1 5.296 5.494 5.694 5.897 6.103 6.313 6.527 6.745 6.968 7.196 7.429 7.667 7.91 8.157 8.408 8.661 8.915 9.166 9.411 9.645 9.861 10.051 10.207 10.321 10.386 10.4 10.399 10.387 10.36 10.318 10.263 10.196 10.118 10.029 9.931 9.824 9.709 9.587 9.459 9.325 9.186 9.043 8.896 8.746 8.594 8.439 8.283 8.126 7.968 7.809 7.65 7.492 7.334 7.176 7.02 6.865 6.711 6.559 6.409 6.26 6.113 5.969 5.826 5.686 5.548 5.413 5.28 5.149 5.021 4.895 4.772 4.651 4.532 4.417 4.303 4.192 4.084 3.978 3.874 3.773 3.674 3.578 3.483 3.391 3.302 3.214 3.129 3.045 2.964 2.885 2.808 2.732 2.659 2.587 2.518 2.45 2.384 2.319 2.256 2.195 2.136 2.078 2.021 1.967 1.913 1.861 1.81 1.761 1.713 1.666 1.621 1.576 1.533 1.491 1.451 1.411 1.372 1.335 1.298 1.263 1.228 1.194 1.162 1.13 1.099 1.069 1.039 1.011 0.983 0.956 0.93 0.904 0.879 0.855 0.832 0.809 0.787 0.765 0.744 0.724 0.704 0.684 0.665 0.647 0.629 0.612 0.595 0.579 0.563 0.547 0.532 0.518 0.503 0.49 0.476 0.463 0.45 0.438 0.426 0.414 0.403 0.392 0.381 0.37 0.36 0.35

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="2.882" PeakHeight="110.0" Num="3" Error="0.0">
-30.094 12.554 -2.894
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="2.882" EndFrequency="10.4" PeakHeight="303.592" Num="5" zHalfNm="228.394" Error="2.064">
-156.876 -37.057 10.927 1.253 -0.586
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="11.253" Depth="0.122"/>
<TopsideChapman PeakHeight="303.592" PeakDensity="1341935.5" PeakScaleHeight="55.933" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
