<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-14 -287 20:10:00.000"
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) 20:10:00</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">
FF202628710142010009039031101000005015000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="11.050" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.384" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="26.342" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="5.850" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="5.850" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.450" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="330.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="330.000" 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="10.450" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="556.963" 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="1.833" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="5.850" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="5.850" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="414.446" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="305.842" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="10.446" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="152.081" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="51.828" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="78.751" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="171.480" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.490" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="105">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 10.45 10.5 10.55 10.6 10.65 10.7 10.75 10.8 10.85 10.9 10.95 11.0 11.05
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
330.000 331.250 332.500 333.750 335.000 335.000 340.000 340.000 342.500 345.000 345.000 347.500 350.000 352.500 355.000 355.000 355.000 358.750 362.500 366.250 370.000 370.000 373.333 376.667 380.000 383.333 386.667 390.000 390.000 392.561 395.123 397.684 400.246 402.807 405.369 407.930 410.492 413.053 415.615 418.176 420.737 423.299 425.860 428.422 430.983 433.545 436.106 438.668 441.229 443.791 446.352 448.913 451.475 454.036 456.598 459.159 461.721 464.282 466.844 469.405 471.967 474.528 477.089 479.651 482.212 484.774 487.335 489.897 492.458 495.020 497.581 500.142 502.704 505.265 507.827 510.388 512.950 515.511 518.073 520.634 523.196 525.757 528.318 530.880 533.441 536.003 538.564 541.126 543.687 546.249 549.491 553.047 556.963 561.298 566.122 570.000 580.000 585.000 595.000 600.000 610.000 625.000 640.000 660.000 683.136
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 0 72 0 72 72 0 72 0 0 0 0 72 75 0 0 78 0 75 72 0 75 0 0 0 66 75 0 0 0 0 0 0 0 0 51 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 -1.171875 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -1.171875 -0.390625 2.734375 0.390625 -0.390625 1.953125 1.171875 -1.171875 2.734375 -2.734375 -1.953125 2.734375 -1.953125 -2.734375 -1.953125 2.734375 1.171875 2.734375 -0.390625 1.171875 2.734375 -1.953125 2.734375 0.390625 -2.734375 1.171875 2.734375 2.734375 -1.171875 -2.734375 1.171875 1.171875 2.734375 -0.390625 1.953125 1.953125 0.390625 -1.171875 -1.171875 -1.953125 -1.171875 2.734375 1.953125 0.390625 1.171875 -1.171875 -0.390625 0.390625 -1.171875 1.953125 1.953125 0.390625 1.953125 2.734375 1.171875 -2.734375 0.390625 -1.953125 2.734375 1.953125 -2.734375 1.953125
</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" >
89.812 90.0 95.0 100.0 105.0 110.0 115.0 119.159 120.0 125.0 128.318 130.0 135.0 137.477 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 414.446 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.216 1.227 1.588 1.774 1.833 1.793 1.697 1.697 1.697 1.697 1.722 1.796 1.833 1.903 2.039 2.177 2.317 2.461 2.609 2.764 2.923 3.088 3.258 3.434 3.613 3.796 3.982 4.171 4.361 4.552 4.745 4.938 5.131 5.323 5.516 5.708 5.899 6.09 6.28 6.47 6.659 6.847 7.035 7.223 7.41 7.596 7.782 7.968 8.153 8.338 8.522 8.706 8.889 9.071 9.252 9.432 9.609 9.784 9.956 10.124 10.285 10.439 10.583 10.715 10.83 10.925 10.995 11.038 11.05 11.05 11.045 11.031 11.01 10.981 10.944 10.901 10.851 10.795 10.733 10.666 10.594 10.516 10.434 10.348 10.259 10.165 10.068 9.968 9.865 9.76 9.653 9.543 9.431 9.318 9.204 9.088 8.971 8.853 8.735 8.616 8.497 8.377 8.257 8.137 8.018 7.898 7.779 7.66 7.542 7.425 7.308 7.191 7.076 6.961 6.848 6.735 6.623 6.513 6.403 6.295 6.188 6.082 5.977 5.873 5.771 5.67 5.57 5.472 5.375 5.279 5.185 5.091 5.0 4.909 4.82 4.732 4.646 4.561 4.477 4.395 4.314 4.234 4.155 4.078 4.002 3.927 3.854 3.781 3.71 3.641 3.572 3.504 3.438 3.373 3.309 3.246 3.185 3.124 3.064 3.006 2.948 2.892 2.837 2.782 2.729 2.676 2.625 2.574 2.525 2.476 2.428 2.382 2.336 2.29 2.246 2.203 2.16 2.118 2.077 2.037 1.997 1.959 1.92 1.883 1.847 1.811 1.775

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="1.833" PeakHeight="110.0" Num="3" Error="0.0">
-28.792 10.751 -2.147
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="1.833" EndFrequency="11.05" PeakHeight="414.446" Num="5" zHalfNm="305.842" Error="3.52">
-254.581 -39.796 24.736 -9.743 2.415
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="27.477" Depth="0.136"/>
<TopsideChapman PeakHeight="414.446" PeakDensity="1514919.4" PeakScaleHeight="78.751" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
