<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-19 -292 16:00:00.000"
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" >
2026.10.19 (292) 16:00:00</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">
FF202629210191600009039031101000005015000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="11.150" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.320" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="25.873" 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="11.550" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="340.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="340.000" 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="10.500" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="577.406" 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="3.334" 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="4.334" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="408.883" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="279.378" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.326" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="167.018" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="62.795" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="93.144" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="221.640" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.220" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="105">
<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 10.65 10.7 10.75 10.8 10.85 10.9 10.95 11.0 11.05 11.1 11.15
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
340.000 345.000 350.000 350.000 350.000 355.000 355.000 360.000 360.000 360.000 365.000 365.000 370.000 370.000 370.000 375.000 375.000 380.000 380.000 380.000 385.000 390.000 390.000 395.000 395.000 397.722 400.445 403.167 405.890 408.612 411.335 414.057 416.780 419.502 422.225 424.947 427.670 430.392 433.115 435.837 438.560 441.282 444.005 446.727 449.449 452.172 454.894 457.617 460.339 463.062 465.784 468.507 471.229 473.952 476.674 479.397 482.119 484.842 487.564 490.287 493.009 495.731 498.454 501.176 503.899 506.621 509.344 512.066 514.789 517.511 520.234 522.956 525.679 528.401 531.124 533.846 536.569 539.291 542.014 544.736 547.458 550.181 552.903 555.626 558.348 561.071 563.793 566.516 569.238 571.961 574.683 577.406 580.128 584.534 589.466 595.000 600.000 610.000 615.000 625.000 640.000 650.000 670.000 690.000 719.036
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
63 69 63 0 66 66 69 63 69 69 66 69 60 63 66 63 66 60 66 69 66 57 63 51 60 45 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
</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 0.390625 -2.734375 -1.171875 0.390625 0.390625 -1.171875 1.953125 -1.953125 1.953125 -2.734375 2.734375 1.171875 -1.953125 -1.171875 -2.734375 2.734375 -1.171875 1.171875 1.171875 0.390625 -1.953125 0.390625 -1.953125 -0.390625 2.734375 1.171875 -1.171875 1.953125 -1.171875 -1.953125 -0.390625 -1.953125 1.953125 -0.390625 -0.390625 1.171875 2.734375 0.390625 1.953125 -0.390625 -0.390625 -1.171875 -0.390625 -0.390625 1.171875 0.390625 -2.734375 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" >
89.492 90.0 95.0 100.0 105.0 110.0 111.782 113.563 115.0 115.345 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 408.883 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.24 2.243 2.885 3.225 3.334 3.211 3.211 3.31 3.334 3.49 3.645 3.793 3.937 4.077 4.215 4.351 4.487 4.622 4.756 4.89 5.024 5.158 5.292 5.426 5.561 5.696 5.831 5.966 6.102 6.238 6.374 6.511 6.648 6.786 6.924 7.062 7.201 7.34 7.48 7.62 7.761 7.902 8.043 8.185 8.328 8.471 8.615 8.759 8.903 9.048 9.193 9.339 9.484 9.63 9.776 9.92 10.064 10.207 10.347 10.483 10.615 10.739 10.854 10.956 11.041 11.104 11.141 11.15 11.15 11.145 11.135 11.119 11.097 11.069 11.037 11.0 10.958 10.911 10.86 10.805 10.747 10.684 10.618 10.549 10.477 10.402 10.324 10.243 10.16 10.075 9.988 9.899 9.809 9.716 9.623 9.527 9.431 9.334 9.236 9.136 9.037 8.936 8.835 8.734 8.632 8.53 8.428 8.326 8.224 8.121 8.019 7.918 7.816 7.715 7.614 7.514 7.414 7.314 7.215 7.117 7.019 6.922 6.826 6.731 6.636 6.542 6.448 6.356 6.264 6.174 6.084 5.995 5.907 5.82 5.734 5.648 5.564 5.48 5.398 5.317 5.236 5.156 5.078 5.0 4.924 4.848 4.773 4.699 4.626 4.555 4.484 4.414 4.345 4.277 4.209 4.143 4.078 4.013 3.95 3.887 3.826 3.765 3.705 3.646 3.588 3.53 3.474 3.418 3.363 3.309 3.256 3.203 3.152 3.101 3.051 3.001 2.953 2.905 2.858 2.811 2.766 2.721 2.676 2.633 2.59 2.548 2.506

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.334" PeakHeight="110.0" Num="3" Error="0.0">
-30.461 13.092 -3.139
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.334" EndFrequency="11.15" PeakHeight="408.883" Num="5" zHalfNm="279.378" Error="1.915">
-249.214 -67.35 26.299 -4.349 1.076
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="5.345" Depth="0.123"/>
<TopsideChapman PeakHeight="408.883" PeakDensity="1542462.8" PeakScaleHeight="93.144" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
