<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-22 -295 18:30:00.000"
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: Multiple candidates for F2x cusp, F2 cusps do not match</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" >
2026.10.22 (295) 18:30:00</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">
FF202629510221830009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="12.450" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.898" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="36.076" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="5.850" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="5.850" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.800" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="300.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="300.000" 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="0.250" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="12.300" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="435.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="2.785" 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="/" />
<URSI ID="92" Val="316.120" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="256.606" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="10.277" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="80.170" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="38.727" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="44.156" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="117.280" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.000" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="133">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 11.1 11.15 11.2 11.25 11.3 11.35 11.4 11.45 11.5 11.55 11.6 11.65 11.7 11.75 11.8 11.85 11.9 11.95 12.0 12.05 12.1 12.15 12.2 12.25 12.3 12.35 12.4 12.45
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
305.000 305.000 305.000 305.000 300.000 301.500 303.000 304.500 306.000 307.500 309.000 310.500 312.000 313.500 315.000 315.000 315.000 315.000 315.000 317.500 320.000 320.000 320.000 320.000 320.000 320.000 325.000 325.000 325.000 325.000 325.000 325.000 330.000 330.000 330.000 330.000 330.000 330.000 335.000 335.000 335.000 335.000 335.000 335.000 335.000 335.952 336.905 337.857 338.810 339.762 340.714 341.667 342.619 343.571 344.524 345.476 346.429 347.381 348.333 349.286 350.238 351.190 352.143 353.095 354.048 355.000 355.952 356.905 357.857 358.810 359.762 360.714 361.667 362.619 363.571 364.524 365.476 366.429 367.381 368.333 369.286 370.238 371.190 372.143 373.095 374.048 375.000 375.952 376.905 377.857 378.810 379.762 380.714 381.667 382.619 383.571 384.524 385.476 386.429 387.381 388.333 389.286 390.238 391.190 392.143 393.095 394.048 395.000 395.000 395.000 395.000 400.000 400.000 400.000 405.000 405.000 405.000 410.000 410.000 410.000 415.000 415.000 420.000 420.000 425.000 425.000 430.000 430.000 435.000 435.000 440.000 445.000 452.445
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
72 0 0 75 60 0 0 0 72 0 0 0 0 0 72 75 0 75 75 0 75 0 75 75 75 75 75 78 78 78 78 75 75 78 81 81 78 75 75 78 78 78 78 75 72 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 51 57 63 63 54 60 63 57 63 66 60 66 66 63 66 63 66 63 66 63 66 63 63 66 63 60
</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 -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 -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 2.734375 0.390625 0.390625 0.390625 -0.390625 1.171875 -0.390625 -1.171875 0.390625 0.390625 0.390625 2.734375 -2.734375 0.390625 0.390625 0.390625 -1.953125 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="182">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
89.583 90.0 95.0 100.0 105.0 110.0 114.2 115.0 118.399 120.0 122.599 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 316.12 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.234 1.871 2.411 2.695 2.785 2.663 2.663 2.663 2.709 2.785 2.929 3.198 3.44 3.666 3.881 4.088 4.291 4.491 4.689 4.887 5.084 5.282 5.481 5.683 5.887 6.093 6.303 6.518 6.736 6.96 7.189 7.424 7.665 7.915 8.172 8.437 8.713 8.999 9.296 9.605 9.927 10.263 10.612 10.973 11.342 11.707 12.045 12.313 12.445 12.45 12.441 12.403 12.338 12.248 12.135 12.002 11.851 11.684 11.502 11.308 11.103 10.889 10.667 10.44 10.208 9.972 9.733 9.493 9.253 9.012 8.772 8.534 8.298 8.064 7.834 7.606 7.382 7.162 6.946 6.735 6.528 6.325 6.127 5.934 5.746 5.562 5.383 5.209 5.04 4.876 4.716 4.561 4.41 4.264 4.122 3.984 3.851 3.721 3.596 3.475 3.358 3.244 3.134 3.027 2.924 2.825 2.728 2.635 2.545 2.458 2.373 2.292 2.213 2.137 2.064 1.993 1.924 1.858 1.794 1.732 1.672 1.614 1.558 1.504 1.452 1.402 1.354 1.307 1.261 1.218 1.176 1.135 1.095 1.057 1.021 0.985 0.951 0.918 0.886 0.856 0.826 0.797 0.77 0.743 0.717 0.692 0.668 0.645 0.622 0.601 0.58 0.56 0.54 0.522 0.503 0.486 0.469 0.453 0.437 0.422 0.407 0.393 0.379 0.366 0.353 0.341 0.329 0.318 0.307 0.296 0.286 0.276 0.266 0.257 0.248 0.24 0.231 0.223 0.215 0.208 0.201

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="2.785" PeakHeight="110.0" Num="3" Error="0.0">
-30.004 12.424 -2.837
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="2.785" EndFrequency="12.45" PeakHeight="316.12" Num="5" zHalfNm="256.606" Error="2.476">
-150.691 -63.097 19.864 1.073 -0.67
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="12.599" Depth="0.122"/>
<TopsideChapman PeakHeight="316.12" PeakDensity="1923108.0" PeakScaleHeight="44.156" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
