<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-03-08 -067 13:00:00.000"
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="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 11 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.44 Confidence: 100%</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" >
2026.03.08 (067) 13:00:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.63" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-11.16" 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">
FF202606703081300009039031101000005018000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="10.800" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.385" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="25.756" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="4.400" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="4.400" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.250" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="210.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="210.000" 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="0.450" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="10.100" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="545.000" 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="3.230" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="4.400" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="4.400" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.286" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="372.710" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="250.583" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="7.300" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="156.333" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="53.268" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="84.613" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="196.050" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.320" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="129">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 10.45 10.5 10.55 10.6 10.65 10.7 10.75 10.8
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
210.000 213.750 217.500 221.250 225.000 230.000 232.500 235.000 240.000 245.000 250.000 255.000 260.000 265.000 270.000 275.000 280.000 282.857 285.714 288.571 291.429 294.286 297.143 300.000 305.000 307.500 310.000 310.000 315.000 315.000 315.000 320.000 320.000 320.000 325.000 325.000 325.000 325.000 325.000 325.000 330.000 330.000 330.000 330.000 330.000 331.786 333.571 335.357 337.143 338.929 340.714 342.500 344.286 346.071 347.857 349.643 351.429 353.214 355.000 355.000 355.000 360.000 360.000 365.000 365.000 370.000 370.000 375.000 380.000 380.000 380.000 385.000 390.000 395.000 395.000 400.000 400.000 405.000 410.000 410.000 415.000 420.000 420.000 425.000 430.000 435.000 440.000 440.000 445.000 450.000 450.000 455.000 460.000 460.000 470.000 475.000 475.000 480.000 485.000 485.000 490.000 495.000 500.000 500.000 510.000 510.000 515.000 520.000 520.000 530.000 530.000 535.000 540.000 545.000 545.000 551.667 558.333 565.000 567.500 570.999 574.863 579.151 583.938 589.316 595.402 602.345 610.340 619.646 630.614
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
51 0 0 0 51 45 0 45 0 48 0 0 0 0 0 45 54 0 0 0 0 0 0 51 45 0 45 51 48 0 54 45 0 57 54 0 66 63 54 57 63 69 72 72 69 0 0 0 0 0 0 0 0 0 45 45 0 0 54 60 60 51 60 57 63 60 69 69 63 72 72 72 66 54 66 60 69 63 60 63 60 60 63 63 63 63 57 54 51 51 57 54 51 54 51 57 57 63 63 60 57 60 60 57 57 54 54 54 54 45 48 54 57 54 51 0 0 42 0 48 48 51 48 51 51 48 45 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 -2.734375 0.390625 2.734375 -2.734375 1.171875 0.390625 0.390625 -0.390625 -0.390625 -2.734375 -0.390625 -0.390625 2.734375 -0.390625 -2.734375 0.390625 -0.390625 2.734375 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 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 1.171875 -0.390625 -1.171875 2.734375 -0.390625 -0.390625 -0.390625 -0.390625 0.390625 -0.390625 -0.390625 -0.390625 -1.171875 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" >
89.508 90.0 95.0 100.0 105.0 110.0 112.214 114.427 115.0 116.641 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 372.71 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.239 2.172 2.795 3.125 3.23 3.108 3.108 3.14 3.23 3.326 3.465 3.602 3.74 3.881 4.026 4.175 4.33 4.49 4.656 4.828 5.004 5.184 5.366 5.551 5.736 5.92 6.102 6.283 6.461 6.635 6.807 6.975 7.141 7.303 7.462 7.619 7.773 7.924 8.074 8.222 8.368 8.512 8.655 8.797 8.938 9.078 9.217 9.356 9.494 9.632 9.769 9.906 10.041 10.176 10.308 10.435 10.555 10.661 10.745 10.793 10.8 10.799 10.792 10.778 10.758 10.731 10.698 10.659 10.614 10.565 10.51 10.45 10.386 10.318 10.246 10.17 10.09 10.008 9.922 9.834 9.743 9.649 9.554 9.456 9.357 9.256 9.154 9.05 8.945 8.84 8.733 8.626 8.518 8.41 8.301 8.192 8.083 7.974 7.865 7.757 7.648 7.54 7.432 7.325 7.218 7.112 7.006 6.901 6.797 6.694 6.591 6.49 6.389 6.289 6.19 6.092 5.995 5.899 5.804 5.711 5.618 5.526 5.436 5.346 5.258 5.171 5.085 5.0 4.916 4.833 4.751 4.671 4.592 4.514 4.437 4.361 4.286 4.212 4.139 4.068 3.997 3.928 3.86 3.793 3.726 3.661 3.597 3.534 3.472 3.411 3.351 3.292 3.234 3.176 3.12 3.065 3.01 2.957 2.904 2.853 2.802 2.752 2.703 2.654 2.607 2.56 2.514 2.469 2.425 2.381 2.338 2.296 2.255 2.214 2.175 2.135 2.097 2.059 2.022 1.985 1.949 1.914 1.88 1.846 1.812 1.779 1.747

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.23" PeakHeight="110.0" Num="3" Error="0.0">
-30.381 12.975 -3.086
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.23" EndFrequency="10.8" PeakHeight="372.71" Num="5" zHalfNm="250.583" Error="7.808">
-218.988 -56.511 29.547 -13.886 3.769
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="6.641" Depth="0.122"/>
<TopsideChapman PeakHeight="372.71" PeakDensity="1447146.4" PeakScaleHeight="84.613" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
