<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-02 -306 14:50:00.000"
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="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 44 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.44 Confidence: 45% PACIFIC flags: F2x cusp not found, Multiple candidates for F2o cusp, One of F2 cusps was derived from the other, Unidentified traces above foF2</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" >
2026.11.02 (306) 14:50:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.63" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-11.41" 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">
FF202630611021450009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="10.400" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.654" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="27.598" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="4.300" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="4.300" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="10.700" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="200.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="200.000" 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="0.200" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="9.800" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="466.933" 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="3.382" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="4.300" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="4.300" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.357" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="339.894" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="232.520" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.844" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="138.824" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="45.297" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="78.001" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="175.280" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.390" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="123">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
4.3 4.35 4.4 4.45 4.5 4.55 4.6 4.65 4.7 4.75 4.8 4.85 4.9 4.95 5.0 5.05 5.1 5.15 5.2 5.25 5.3 5.35 5.4 5.45 5.5 5.55 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
200.000 205.000 205.000 210.000 215.000 220.000 225.000 227.316 229.632 231.947 234.263 236.579 238.895 241.211 243.526 245.842 248.158 250.474 252.789 255.105 257.421 259.737 262.053 264.368 266.684 269.000 271.316 273.632 275.947 278.263 280.579 282.895 285.211 287.526 289.842 292.158 294.474 296.789 299.105 301.421 303.737 306.053 308.368 310.684 313.000 315.316 317.632 319.947 322.263 324.579 326.895 329.211 331.526 333.842 336.158 338.474 340.789 343.105 345.421 347.737 350.053 352.368 354.684 357.000 359.316 361.632 363.947 366.263 368.579 370.895 373.211 375.526 377.842 380.158 382.474 384.789 387.105 389.421 391.737 394.053 396.368 398.684 401.000 403.316 405.632 407.947 410.263 412.579 414.895 417.211 419.526 421.842 424.158 426.474 428.789 431.105 433.421 435.737 438.053 440.368 442.684 445.000 445.000 445.000 450.000 450.000 450.000 460.000 460.000 463.279 466.933 471.030 475.656 480.921 486.966 493.979 502.213 512.017 523.886 538.552 557.135 581.443 614.607
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
54 54 54 51 0 51 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 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 57 63 0 60 54 60 57 57 57 60 57 57 57 57 57 54 54 45 0 0 0 45
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
0.390625 0.390625 0.390625 0.390625 1.171875 0.390625 0.390625 -1.171875 -2.734375 -2.734375 1.171875 0.390625 0.390625 2.734375 1.953125 1.171875 -2.734375 -1.953125 -0.390625 0.390625 2.734375 -1.171875 1.171875 -0.390625 1.953125 1.171875 2.734375 -2.734375 -1.171875 -1.171875 -2.734375 -0.390625 1.953125 0.390625 0.390625 2.734375 0.390625 -2.734375 -2.734375 0.390625 -2.734375 1.171875 -2.734375 -1.171875 -1.171875 1.171875 -2.734375 -1.953125 -1.953125 2.734375 1.171875 -1.953125 2.734375 -0.390625 1.953125 1.171875 0.390625 -1.171875 0.390625 -0.390625 -0.390625 0.390625 -1.171875 -0.390625 -1.171875 -1.953125 2.734375 -1.171875 1.171875 0.390625 1.953125 2.734375 -1.171875 1.953125 -1.953125 0.390625 -1.953125 -2.734375 -1.171875 -1.953125 -1.171875 -1.171875 1.171875 1.171875 -1.953125 0.390625 -2.734375 -1.953125 -2.734375 -1.171875 1.171875 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 -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
</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" >
89.485 90.0 95.0 100.0 105.0 110.0 111.585 113.17 114.755 115.0 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 339.894 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.241 2.275 2.927 3.272 3.382 3.259 3.259 3.382 3.388 3.526 3.674 3.83 3.994 4.163 4.335 4.51 4.685 4.861 5.036 5.211 5.385 5.558 5.73 5.902 6.073 6.244 6.414 6.585 6.755 6.926 7.096 7.268 7.439 7.611 7.783 7.956 8.129 8.303 8.476 8.65 8.822 8.994 9.164 9.331 9.494 9.652 9.802 9.943 10.071 10.182 10.275 10.343 10.386 10.4 10.4 10.396 10.383 10.363 10.336 10.302 10.261 10.214 10.161 10.102 10.038 9.969 9.896 9.818 9.736 9.65 9.561 9.469 9.374 9.276 9.176 9.073 8.969 8.863 8.755 8.646 8.536 8.425 8.313 8.2 8.087 7.973 7.86 7.746 7.632 7.518 7.405 7.292 7.179 7.067 6.955 6.844 6.734 6.625 6.516 6.408 6.302 6.196 6.091 5.987 5.885 5.784 5.683 5.584 5.486 5.39 5.294 5.2 5.107 5.015 4.925 4.836 4.748 4.662 4.576 4.492 4.41 4.328 4.248 4.169 4.091 4.015 3.94 3.866 3.793 3.722 3.652 3.583 3.515 3.448 3.382 3.318 3.255 3.192 3.131 3.071 3.012 2.954 2.898 2.842 2.787 2.733 2.68 2.628 2.578 2.528 2.479 2.43 2.383 2.337 2.291 2.247 2.203 2.16 2.118 2.076 2.036 1.996 1.957 1.919 1.881 1.844 1.808 1.772 1.738 1.704 1.67 1.637 1.605 1.574 1.543 1.512 1.483 1.453 1.425 1.397 1.369 1.342 1.316 1.29 1.264 1.239 1.215

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.382" PeakHeight="110.0" Num="3" Error="0.0">
-30.494 13.142 -3.163
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.382" EndFrequency="10.4" PeakHeight="339.894" Num="5" zHalfNm="232.52" Error="2.088">
-196.363 -39.571 13.864 -2.495 -0.574
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="4.755" Depth="0.123"/>
<TopsideChapman PeakHeight="339.894" PeakDensity="1341935.5" PeakScaleHeight="78.001" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
