<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-14 -287 15:40:00.000"
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" >
2026.10.14 (287) 15:40:00</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">
FF202628710141540009039031101000005015000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="10.950" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.492" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="27.292" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="6.200" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="6.200" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.300" 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="10.200" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="505.165" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="3.368" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="6.200" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="6.200" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.350" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="376.765" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="252.150" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.158" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="164.117" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="58.673" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="91.546" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="202.630" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.440" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="96">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
325.000 325.000 335.000 335.000 335.000 336.667 338.333 340.000 341.667 343.333 345.000 345.000 345.000 348.333 351.667 355.000 355.000 355.000 355.000 357.422 359.844 362.266 364.688 367.110 369.532 371.954 374.376 376.798 379.220 381.642 384.064 386.486 388.908 391.330 393.752 396.174 398.596 401.018 403.440 405.863 408.285 410.707 413.129 415.551 417.973 420.395 422.817 425.239 427.661 430.083 432.505 434.927 437.349 439.771 442.193 444.615 447.037 449.459 451.881 454.303 456.725 459.147 461.569 463.991 466.413 468.835 471.257 473.679 476.101 478.523 480.945 483.367 485.789 488.211 490.633 493.055 495.477 497.899 500.321 502.743 505.165 510.000 515.000 520.000 530.000 535.000 545.000 555.000 565.000 575.000 590.000 605.000 620.000 645.000 670.000 697.666
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
63 60 0 63 66 0 0 0 0 0 66 69 66 0 0 0 63 0 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 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 -1.953125 -0.390625 2.734375 0.390625 0.390625 -2.734375 -2.734375 2.734375 0.390625 2.734375 -1.953125 2.734375 2.734375 2.734375 -0.390625 -0.390625 -1.171875 -1.171875 0.390625 2.734375 -2.734375 2.734375 2.734375 1.953125 2.734375 0.390625 -1.171875 2.734375 1.171875 -2.734375 -1.171875 -1.953125 -0.390625 0.390625 -0.390625 0.390625 -1.171875 2.734375 -1.171875 -1.953125 2.734375 -2.734375 1.171875 -0.390625 2.734375 2.734375 -1.171875 -2.734375 1.171875 0.390625 -1.953125 0.390625 2.734375 -1.171875 -1.953125 -1.953125 -1.953125 0.390625 1.171875 1.171875 -0.390625 -1.171875 2.734375 -1.953125 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" >
89.487 90.0 95.0 100.0 105.0 110.0 111.64 113.279 114.919 115.0 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 376.765 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.24 2.266 2.915 3.258 3.368 3.245 3.245 3.368 3.371 3.544 3.714 3.881 4.044 4.206 4.366 4.525 4.682 4.839 4.995 5.15 5.306 5.461 5.616 5.771 5.927 6.083 6.239 6.396 6.553 6.711 6.87 7.029 7.189 7.35 7.511 7.673 7.836 7.999 8.162 8.326 8.49 8.655 8.819 8.982 9.145 9.306 9.466 9.623 9.777 9.928 10.073 10.213 10.345 10.468 10.581 10.682 10.769 10.841 10.896 10.932 10.949 10.95 10.949 10.942 10.928 10.909 10.885 10.855 10.82 10.78 10.735 10.686 10.633 10.576 10.515 10.45 10.382 10.311 10.236 10.159 10.08 9.997 9.913 9.826 9.738 9.647 9.555 9.462 9.367 9.271 9.174 9.076 8.977 8.877 8.776 8.676 8.574 8.473 8.371 8.269 8.167 8.064 7.962 7.861 7.759 7.657 7.556 7.456 7.355 7.256 7.157 7.058 6.96 6.862 6.766 6.67 6.575 6.48 6.386 6.294 6.202 6.111 6.02 5.931 5.843 5.755 5.668 5.583 5.498 5.414 5.332 5.25 5.169 5.089 5.01 4.933 4.856 4.78 4.705 4.631 4.558 4.486 4.415 4.345 4.276 4.208 4.14 4.074 4.009 3.944 3.881 3.818 3.757 3.696 3.636 3.577 3.519 3.462 3.405 3.35 3.295 3.241 3.188 3.136 3.084 3.034 2.984 2.935 2.886 2.839 2.792 2.746 2.7 2.656 2.612 2.568 2.526 2.484 2.443 2.402 2.362 2.323 2.284 2.246 2.209 2.172 2.136

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.368" PeakHeight="110.0" Num="3" Error="0.0">
-30.485 13.128 -3.156
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.368" EndFrequency="10.95" PeakHeight="376.765" Num="5" zHalfNm="252.15" Error="2.019">
-235.673 -39.813 14.671 -0.943 -0.088
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="4.919" Depth="0.123"/>
<TopsideChapman PeakHeight="376.765" PeakDensity="1487624.1" PeakScaleHeight="91.546" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
