<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-14 -287 20:20:00.000"
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) 20:20:00</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">
FF202628710142020009039031101000005015000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="11.050" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.361" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="26.090" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="5.800" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="5.800" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.500" 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="10.350" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="557.028" 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="1.660" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="5.800" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="5.800" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="425.975" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="311.172" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="10.415" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="162.219" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="54.857" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="84.262" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="174.010" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.690" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="106">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 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" >
330.000 335.000 335.000 340.000 340.000 340.000 345.000 345.000 345.000 350.000 350.000 350.000 350.000 352.500 355.000 357.500 360.000 360.000 360.000 365.000 365.000 367.500 370.000 375.000 375.000 377.679 380.357 383.036 385.714 388.393 391.071 393.750 396.428 399.107 401.785 404.464 407.142 409.821 412.499 415.178 417.857 420.535 423.214 425.892 428.571 431.249 433.928 436.606 439.285 441.963 444.642 447.320 449.999 452.678 455.356 458.035 460.713 463.392 466.070 468.749 471.427 474.106 476.784 479.463 482.141 484.820 487.498 490.177 492.856 495.534 498.213 500.891 503.570 506.248 508.927 511.605 514.284 516.962 519.641 522.319 524.998 527.676 530.355 533.034 535.712 538.391 541.069 543.748 546.426 549.105 552.892 557.028 561.564 566.561 570.000 580.000 585.000 595.000 600.000 610.000 625.000 635.000 655.000 675.000 700.000 728.035
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
72 78 78 78 0 0 75 72 75 72 75 0 0 0 0 0 75 0 0 75 0 0 0 72 0 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 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 -1.171875 -0.390625 -1.171875 -1.171875 -1.171875 -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 -1.171875 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -1.171875 -1.171875 -0.390625 -1.171875 -1.171875 -0.390625 -0.390625 -0.390625 2.734375 1.953125 1.953125 0.390625 -1.953125 1.953125 1.953125 2.734375 0.390625 -1.953125 1.171875 2.734375 -2.734375 2.734375 0.390625 -2.734375 1.953125 1.171875 -1.171875 0.390625 -1.171875 -2.734375 1.953125 1.953125 -1.171875 1.171875 -0.390625 -2.734375 0.390625 2.734375 2.734375 1.171875 2.734375 -2.734375 2.734375 -1.953125 -1.171875 0.390625 -2.734375 -2.734375 -2.734375 1.953125 -2.734375 -0.390625 -1.171875 1.171875 -2.734375 -0.390625 -1.953125 -1.171875 1.171875 -1.171875 0.390625 -0.390625 0.390625 -1.171875 -0.390625 2.734375 -2.734375 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" >
89.87 90.0 95.0 100.0 105.0 110.0 115.0 120.0 120.201 125.0 130.0 130.403 135.0 140.0 140.604 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 425.975 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.211 1.111 1.438 1.607 1.66 1.627 1.525 1.519 1.519 1.519 1.519 1.583 1.652 1.66 1.769 1.894 2.019 2.149 2.283 2.422 2.567 2.718 2.876 3.04 3.211 3.388 3.57 3.757 3.949 4.144 4.342 4.542 4.744 4.947 5.151 5.355 5.56 5.764 5.968 6.171 6.374 6.576 6.777 6.977 7.176 7.374 7.572 7.768 7.963 8.156 8.348 8.538 8.727 8.913 9.097 9.279 9.456 9.631 9.8 9.965 10.123 10.274 10.416 10.548 10.669 10.776 10.868 10.943 10.999 11.035 11.05 11.05 11.048 11.038 11.021 10.998 10.968 10.931 10.889 10.841 10.788 10.73 10.667 10.599 10.528 10.452 10.372 10.289 10.203 10.114 10.022 9.927 9.831 9.732 9.63 9.528 9.423 9.318 9.211 9.102 8.993 8.884 8.773 8.662 8.551 8.439 8.327 8.215 8.103 7.991 7.88 7.768 7.657 7.547 7.437 7.328 7.219 7.111 7.003 6.897 6.791 6.686 6.582 6.479 6.377 6.276 6.176 6.077 5.979 5.882 5.786 5.692 5.598 5.506 5.415 5.325 5.236 5.148 5.062 4.976 4.892 4.809 4.727 4.646 4.567 4.488 4.411 4.335 4.26 4.186 4.113 4.042 3.971 3.902 3.833 3.766 3.7 3.635 3.571 3.508 3.446 3.385 3.325 3.266 3.208 3.15 3.094 3.039 2.985 2.931 2.879 2.827 2.777 2.727 2.678 2.63 2.582 2.536 2.49 2.445 2.401 2.358 2.315 2.273 2.232 2.192 2.152

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="1.66" PeakHeight="110.0" Num="3" Error="0.0">
-28.475 10.332 -1.987
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="1.66" EndFrequency="11.05" PeakHeight="425.975" Num="5" zHalfNm="311.172" Error="3.607">
-271.928 -24.64 16.663 -7.747 2.281
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="30.604" Depth="0.141"/>
<TopsideChapman PeakHeight="425.975" PeakDensity="1514919.4" PeakScaleHeight="84.262" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
