<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-24 -297 14:30:00.000"
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="14.0">
<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 33 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.44 Confidence: 65% PACIFIC flags: F2x cusp not found, Multiple candidates for F2o cusp, One of F2 cusps was derived from the other</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" >
2026.10.24 (297) 14:30:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.63" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-11.40" 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">
FF202629710241430009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="11.050" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.476" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="27.356" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="5.600" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="5.600" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.350" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="370.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="370.000" 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="0.150" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="10.350" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="515.000" 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="3.392" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="5.600" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="5.600" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.362" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="380.487" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="278.826" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.631" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="129.616" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="50.634" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="75.116" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="189.930" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.020" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="110">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 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" >
370.000 370.000 370.000 370.000 370.000 370.000 375.000 375.000 375.000 375.000 375.000 375.000 375.000 375.000 375.000 380.000 380.000 380.000 380.000 380.000 380.000 380.000 382.500 385.000 385.000 385.000 386.846 388.692 390.538 392.385 394.231 396.077 397.923 399.769 401.615 403.462 405.308 407.154 409.000 410.846 412.692 414.538 416.385 418.231 420.077 421.923 423.769 425.615 427.462 429.308 431.154 433.000 434.846 436.692 438.538 440.385 442.231 444.077 445.923 447.769 449.615 451.462 453.308 455.154 457.000 458.846 460.692 462.538 464.385 466.231 468.077 469.923 471.769 473.615 475.462 477.308 479.154 481.000 482.846 484.692 486.538 488.385 490.231 492.077 493.923 495.769 497.615 499.462 501.308 503.154 505.000 505.000 515.000 520.000 517.500 515.000 520.000 525.000 530.000 535.000 540.000 550.000 550.000 555.000 565.000 570.000 580.000 590.000 605.000 618.173
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 0 54 0 0 0 0 0 0 0 60 0 0 0 0 0 0 45 0 0 0 0 0 66 0 0 0 48 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 48 51 51 51 0 0 0 0 0 0 0 0 0 0 0 0 51 48 45 45
</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 -1.171875 -0.390625 -0.390625 -0.390625 -0.390625 -1.171875 -0.390625 -1.171875 0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -1.171875 -0.390625 -0.390625 -1.171875 -1.171875 -0.390625 -1.953125 0.390625 -0.390625 -0.390625 1.171875 0.390625 1.171875 -2.734375 -1.171875 -1.171875 -1.171875 1.171875 -1.171875 0.390625 0.390625 -2.734375 -2.734375 -1.953125 -2.734375 2.734375 -2.734375 1.953125 -0.390625 -1.953125 1.171875 -2.734375 -0.390625 1.953125 -2.734375 2.734375 -0.390625 1.171875 -1.953125 -1.953125 -0.390625 1.953125 2.734375 0.390625 1.953125 1.171875 -2.734375 -0.390625 -1.953125 1.171875 2.734375 0.390625 1.953125 -1.953125 -1.171875 -2.734375 -2.734375 0.390625 -2.734375 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 0.390625 0.390625 0.390625 0.390625
</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" >
89.484 90.0 95.0 100.0 105.0 110.0 111.541 113.082 114.623 115.0 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 380.487 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.241 2.282 2.935 3.281 3.392 3.269 3.269 3.392 3.408 3.588 3.743 3.884 4.017 4.145 4.27 4.392 4.512 4.632 4.751 4.87 4.989 5.108 5.229 5.35 5.472 5.596 5.721 5.848 5.976 6.106 6.238 6.372 6.509 6.647 6.788 6.932 7.078 7.227 7.379 7.533 7.691 7.852 8.015 8.183 8.353 8.526 8.703 8.883 9.066 9.251 9.439 9.628 9.818 10.007 10.193 10.374 10.547 10.705 10.842 10.95 11.022 11.05 11.05 11.046 11.033 11.011 10.981 10.943 10.897 10.844 10.785 10.719 10.647 10.569 10.487 10.399 10.307 10.211 10.111 10.007 9.901 9.791 9.679 9.565 9.448 9.33 9.21 9.088 8.966 8.842 8.718 8.593 8.468 8.343 8.217 8.092 7.966 7.841 7.716 7.592 7.469 7.346 7.224 7.102 6.982 6.863 6.744 6.627 6.511 6.397 6.283 6.171 6.06 5.95 5.842 5.735 5.63 5.526 5.423 5.322 5.223 5.125 5.028 4.933 4.839 4.747 4.656 4.567 4.479 4.392 4.307 4.224 4.142 4.061 3.982 3.904 3.827 3.752 3.678 3.605 3.534 3.464 3.395 3.328 3.262 3.197 3.133 3.07 3.009 2.949 2.889 2.831 2.775 2.719 2.664 2.61 2.558 2.506 2.455 2.406 2.357 2.309 2.263 2.217 2.172 2.128 2.084 2.042 2.001 1.96 1.92 1.881 1.843 1.805 1.768 1.732 1.697 1.662 1.628 1.595 1.562 1.53 1.499 1.469 1.438 1.409 1.38

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.392" PeakHeight="110.0" Num="3" Error="0.0">
-30.501 13.153 -3.168
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.392" EndFrequency="11.05" PeakHeight="380.487" Num="5" zHalfNm="278.826" Error="4.894">
-209.487 -75.965 17.149 1.891 0.548
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="4.623" Depth="0.123"/>
<TopsideChapman PeakHeight="380.487" PeakDensity="1514919.4" PeakScaleHeight="75.116" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
