<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-23 -296 15:10:00.000"
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: 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" >
2026.10.23 (296) 15:10:00</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">
FF202629610231510009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="10.600" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.404" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="25.482" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="5.950" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="5.950" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.000" 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="9.700" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="522.383" 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="3.386" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="5.950" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="5.950" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.359" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="386.746" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="250.803" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.919" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="178.810" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="59.307" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="99.244" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="214.850" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.520" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="94">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
335.000 335.000 335.000 336.000 337.000 338.000 339.000 340.000 341.000 342.000 343.000 344.000 345.000 345.000 350.000 355.000 355.000 355.000 355.000 360.000 360.000 360.000 365.000 365.000 365.000 370.000 370.000 375.000 375.000 380.000 380.000 380.000 385.000 385.000 390.000 390.000 395.000 395.000 400.000 400.000 400.000 403.497 406.993 410.490 413.987 417.483 420.980 424.477 427.973 431.470 434.967 438.463 441.960 445.457 448.953 452.450 455.947 459.443 462.940 466.437 469.933 473.430 476.927 480.423 483.920 487.417 490.913 494.410 497.907 501.403 504.900 508.397 511.893 515.390 518.886 522.383 525.880 529.376 533.923 538.876 545.000 550.000 555.000 565.000 570.000 580.000 590.000 605.000 615.000 635.000 650.000 675.000 700.000 732.598
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
60 60 63 0 60 0 0 0 54 0 0 0 60 54 66 60 0 69 66 69 75 72 69 69 72 72 75 72 72 66 69 0 69 72 72 75 72 72 75 75 75 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
</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 2.734375 -1.171875 -1.953125 -1.171875 1.953125 -0.390625 1.171875 -2.734375 -1.171875 1.953125 -2.734375 -0.390625 -1.171875 -2.734375 -1.953125 -2.734375 -1.171875 -2.734375 2.734375 2.734375 2.734375 -2.734375 1.171875 -2.734375 1.953125 2.734375 0.390625 2.734375 1.953125 -2.734375 -2.734375 1.171875 -2.734375 -1.171875 0.390625 -0.390625 1.171875 0.390625 2.734375 2.734375
</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 95.0 100.0 105.0 110.0 111.567 113.135 114.702 115.0 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 386.746 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.241 2.278 2.93 3.276 3.386 3.263 3.263 3.386 3.396 3.563 3.718 3.867 4.013 4.157 4.301 4.444 4.588 4.733 4.879 5.026 5.174 5.323 5.473 5.624 5.776 5.929 6.082 6.236 6.391 6.545 6.7 6.855 7.009 7.164 7.317 7.471 7.624 7.776 7.927 8.077 8.227 8.375 8.522 8.668 8.812 8.954 9.094 9.233 9.368 9.501 9.63 9.755 9.876 9.991 10.1 10.202 10.295 10.379 10.451 10.51 10.555 10.585 10.599 10.6 10.599 10.593 10.582 10.566 10.546 10.521 10.492 10.459 10.422 10.381 10.336 10.288 10.237 10.182 10.125 10.064 10.001 9.936 9.868 9.798 9.726 9.652 9.576 9.498 9.419 9.338 9.256 9.172 9.088 9.002 8.916 8.828 8.74 8.652 8.562 8.473 8.383 8.292 8.201 8.11 8.019 7.928 7.837 7.746 7.655 7.564 7.473 7.383 7.292 7.203 7.113 7.024 6.935 6.847 6.76 6.673 6.586 6.5 6.415 6.33 6.246 6.162 6.08 5.998 5.916 5.836 5.756 5.677 5.598 5.521 5.444 5.368 5.292 5.218 5.144 5.071 4.999 4.928 4.858 4.788 4.719 4.651 4.584 4.517 4.452 4.387 4.323 4.26 4.197 4.136 4.075 4.015 3.956 3.897 3.839 3.782 3.726 3.671 3.616 3.562 3.509 3.456 3.404 3.353 3.303 3.253 3.204 3.155 3.108 3.061 3.014 2.969 2.924 2.879 2.836 2.793 2.75 2.708 2.667 2.626 2.586 2.547 2.508

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.386" PeakHeight="110.0" Num="3" Error="0.0">
-30.497 13.147 -3.165
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.386" EndFrequency="10.6" PeakHeight="386.746" Num="5" zHalfNm="250.803" Error="3.377">
-247.788 -36.996 14.776 -3.36 1.324
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="4.702" Depth="0.123"/>
<TopsideChapman PeakHeight="386.746" PeakDensity="1394044.6" PeakScaleHeight="99.244" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
