<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-13 -286 12:40:00.000"
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="18.0">
<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: 50% PACIFIC flags: F2o cusp not found, 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" >
2026.10.13 (286) 12:40:00</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">
FF202628610131240009039031101000005018000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="10.700" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.529" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="27.059" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="5.700" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="5.700" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.050" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="315.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="315.000" 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="10.300" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="522.337" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="3.240" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="5.700" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="5.700" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.290" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="358.853" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="247.117" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.040" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="144.643" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="49.477" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="80.039" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="185.060" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.300" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="101">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
315.000 315.000 315.000 315.000 315.000 315.000 320.000 320.000 320.000 320.000 320.000 320.000 325.000 325.000 325.000 325.000 325.000 325.000 327.500 330.000 330.000 330.000 330.000 330.000 330.000 335.000 335.000 335.000 337.875 340.750 343.625 346.501 349.376 352.251 355.126 358.001 360.876 363.751 366.627 369.502 372.377 375.252 378.127 381.002 383.878 386.753 389.628 392.503 395.378 398.253 401.128 404.004 406.879 409.754 412.629 415.504 418.379 421.254 424.130 427.005 429.880 432.755 435.630 438.505 441.381 444.256 447.131 450.006 452.881 455.756 458.631 461.507 464.382 467.257 470.132 473.007 475.882 478.757 481.633 484.508 487.383 490.258 493.133 496.008 497.805 499.784 501.974 504.411 507.140 510.215 513.707 517.708 522.337 530.000 535.000 540.000 550.000 565.000 580.000 600.000 629.748
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
54 0 0 66 66 63 66 63 63 69 75 72 66 66 72 72 63 57 0 66 69 0 0 57 60 66 0 69 0 66 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 -1.953125 2.734375 1.171875 2.734375 1.953125 0.390625 0.390625 2.734375 1.953125 2.734375 1.953125 0.390625 0.390625 2.734375 -2.734375 -1.953125 -1.171875 2.734375 2.734375 2.734375 1.171875 -0.390625 -0.390625 -1.953125 1.953125 1.953125 2.734375 -1.171875 -0.390625 -1.171875 -1.171875 -0.390625 1.953125 2.734375 -1.171875 -2.734375 -0.390625 -1.171875 -2.734375 0.390625 1.953125 1.953125 -0.390625 -0.390625 2.734375 1.171875 1.171875 -1.953125 -2.734375 -0.390625 2.734375 -2.734375 -1.953125 2.734375 1.171875 -2.734375 1.953125 -1.953125 1.171875 1.953125 0.390625 -0.390625 1.171875 -2.734375 1.953125 -2.734375 -1.171875
</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" >
89.506 90.0 95.0 100.0 105.0 110.0 112.174 114.348 115.0 116.522 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 358.853 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.239 2.179 2.804 3.135 3.24 3.118 3.118 3.155 3.24 3.379 3.557 3.723 3.882 4.039 4.195 4.35 4.507 4.664 4.823 4.984 5.146 5.309 5.474 5.64 5.808 5.976 6.144 6.313 6.483 6.652 6.821 6.99 7.159 7.327 7.495 7.662 7.829 7.996 8.161 8.326 8.491 8.655 8.818 8.981 9.142 9.303 9.462 9.62 9.775 9.927 10.074 10.215 10.347 10.466 10.567 10.643 10.689 10.7 10.7 10.694 10.68 10.659 10.631 10.596 10.555 10.507 10.454 10.395 10.331 10.263 10.189 10.112 10.03 9.945 9.856 9.764 9.67 9.572 9.472 9.37 9.266 9.16 9.053 8.944 8.834 8.723 8.611 8.499 8.386 8.272 8.158 8.044 7.93 7.816 7.702 7.588 7.475 7.362 7.25 7.138 7.027 6.916 6.807 6.698 6.59 6.483 6.377 6.272 6.168 6.065 5.963 5.862 5.763 5.664 5.567 5.471 5.376 5.283 5.191 5.1 5.01 4.921 4.834 4.748 4.663 4.579 4.497 4.416 4.336 4.258 4.18 4.104 4.029 3.956 3.883 3.812 3.742 3.673 3.605 3.538 3.472 3.408 3.344 3.282 3.221 3.161 3.102 3.043 2.986 2.93 2.875 2.821 2.768 2.716 2.664 2.614 2.565 2.516 2.468 2.422 2.376 2.331 2.286 2.243 2.2 2.158 2.117 2.077 2.037 1.998 1.96 1.923 1.886 1.85 1.815 1.78 1.746 1.712 1.68 1.647 1.616 1.585 1.555 1.525 1.495 1.467 1.439

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.24" PeakHeight="110.0" Num="3" Error="0.0">
-30.389 12.986 -3.091
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.24" EndFrequency="10.7" PeakHeight="358.853" Num="5" zHalfNm="247.117" Error="3.253">
-209.453 -50.233 20.854 -5.467 1.968
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="6.522" Depth="0.122"/>
<TopsideChapman PeakHeight="358.853" PeakDensity="1420471.5" PeakScaleHeight="80.039" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
