<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-14 -287 15:50:00.000"
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) 15:50:00</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">
FF202628710141550009039031101000005015000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="10.900" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.461" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="26.827" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="6.050" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="6.050" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.250" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="335.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="335.000" 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="10.150" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="516.504" 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="3.355" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="6.050" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="6.050" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.344" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="386.416" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="254.871" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.241" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="174.634" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="61.414" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="97.124" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="208.900" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.540" 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" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
335.000 335.000 336.667 338.333 340.000 340.000 342.500 345.000 345.000 345.000 340.000 341.111 342.222 343.333 344.444 345.556 346.667 347.778 348.889 350.000 352.643 355.286 357.929 360.572 363.215 365.858 368.500 371.143 373.786 376.429 379.072 381.715 384.358 387.001 389.644 392.287 394.930 397.573 400.215 402.858 405.501 408.144 410.787 413.430 416.073 418.716 421.359 424.002 426.645 429.288 431.930 434.573 437.216 439.859 442.502 445.145 447.788 450.431 453.074 455.717 458.360 461.003 463.645 466.288 468.931 471.574 474.217 476.860 479.503 482.146 484.789 487.432 490.075 492.718 495.360 498.003 500.646 503.289 505.932 508.575 511.218 513.861 516.504 519.147 525.000 535.000 540.000 550.000 560.000 575.000 585.000 600.000 615.000 630.000 650.000 675.000 700.000 729.116
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 60 0 0 57 60 0 0 0 60 63 0 0 0 63 0 0 0 0 63 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 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 2.734375 2.734375 -1.171875 0.390625 -0.390625 -1.953125 -0.390625 1.171875 2.734375 -2.734375 1.953125 0.390625 1.171875 -2.734375 0.390625 2.734375 1.953125 0.390625 1.171875 -1.171875 1.171875 -1.953125 -2.734375 -1.953125 -2.734375 0.390625 0.390625 2.734375 -0.390625 0.390625 -2.734375 2.734375 0.390625 -0.390625 -2.734375 1.171875 -2.734375 -0.390625 -1.171875 1.953125 -1.171875 -1.171875 -1.171875 -0.390625 0.390625 -1.171875 -0.390625 -1.171875 -2.734375 0.390625 1.171875 -2.734375 1.171875 2.734375 -0.390625 1.171875 -2.734375 1.953125 -2.734375 -2.734375 0.390625 -2.734375 -0.390625 -1.953125 0.390625 -1.171875 1.953125 -1.171875 1.953125 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" >
89.489 90.0 95.0 100.0 105.0 110.0 111.694 113.389 115.0 115.083 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 386.416 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.24 2.257 2.903 3.246 3.355 3.232 3.232 3.349 3.355 3.518 3.679 3.835 3.99 4.142 4.293 4.444 4.594 4.745 4.895 5.046 5.198 5.349 5.502 5.655 5.809 5.964 6.119 6.275 6.432 6.59 6.749 6.908 7.067 7.228 7.389 7.55 7.712 7.873 8.035 8.197 8.359 8.52 8.68 8.84 8.998 9.155 9.309 9.461 9.61 9.756 9.896 10.032 10.162 10.285 10.4 10.505 10.601 10.685 10.757 10.815 10.859 10.887 10.899 10.9 10.899 10.892 10.88 10.863 10.84 10.814 10.782 10.746 10.706 10.662 10.614 10.562 10.507 10.449 10.387 10.323 10.256 10.186 10.113 10.039 9.962 9.883 9.802 9.719 9.635 9.549 9.462 9.374 9.284 9.194 9.102 9.01 8.917 8.823 8.729 8.634 8.539 8.444 8.348 8.252 8.157 8.061 7.965 7.869 7.774 7.679 7.584 7.489 7.395 7.301 7.207 7.114 7.022 6.93 6.838 6.747 6.657 6.568 6.479 6.391 6.303 6.217 6.131 6.046 5.961 5.878 5.795 5.713 5.632 5.552 5.472 5.394 5.316 5.239 5.163 5.088 5.014 4.94 4.868 4.796 4.725 4.656 4.587 4.518 4.451 4.384 4.319 4.254 4.19 4.127 4.065 4.003 3.943 3.883 3.824 3.766 3.708 3.652 3.596 3.541 3.486 3.433 3.38 3.328 3.277 3.226 3.177 3.127 3.079 3.031 2.984 2.938 2.892 2.848 2.803 2.76 2.717 2.674 2.632 2.591 2.551 2.511 2.472

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.355" PeakHeight="110.0" Num="3" Error="0.0">
-30.475 13.114 -3.15
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.355" EndFrequency="10.9" PeakHeight="386.416" Num="5" zHalfNm="254.871" Error="3.139">
-248.029 -34.735 12.05 -0.869 0.25
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="5.083" Depth="0.123"/>
<TopsideChapman PeakHeight="386.416" PeakDensity="1474069.5" PeakScaleHeight="97.124" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
