<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-03-05 -064 17:00:00.000"
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: 90% PACIFIC flags: One of F2 cusps was derived from the other</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" >
2026.03.05 (064) 17:00:00</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">
FF202606403051700009039031101000005018000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="12.400" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.545" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="31.555" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="5.750" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="5.750" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="12.700" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="325.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="325.000" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="11.500" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="485.000" 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="3.272" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="5.750" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="5.750" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.305" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="368.647" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="272.689" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.089" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="128.319" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="60.205" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="71.685" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="168.460" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.200" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="134">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
325.000 326.000 327.000 328.000 329.000 330.000 335.000 335.000 335.000 335.000 340.000 340.000 340.000 340.000 340.000 345.000 345.000 345.000 345.000 345.000 345.000 346.667 348.333 350.000 350.000 350.000 350.000 350.000 355.000 355.000 355.000 355.000 355.000 355.909 356.818 357.727 358.636 359.545 360.455 361.364 362.273 363.182 364.091 365.000 365.000 367.000 369.000 371.000 373.000 375.000 377.000 379.000 381.000 383.000 385.000 385.000 385.000 385.000 385.000 385.000 390.000 390.000 390.000 390.000 390.000 395.000 400.000 400.000 402.500 405.000 405.000 407.500 410.000 410.000 410.000 412.500 415.000 415.000 415.000 415.000 415.000 415.000 418.333 421.667 425.000 425.000 425.000 425.000 430.000 430.000 430.000 435.000 435.000 435.000 435.000 435.000 435.000 440.000 445.000 445.000 445.000 445.000 448.333 451.667 455.000 458.333 461.667 465.000 465.000 470.000 472.500 475.000 477.500 480.000 485.000 485.000 490.000 495.000 500.000 505.000 505.000 510.000 515.000 520.000 526.667 533.333 540.000 546.667 553.333 560.000 569.843 581.080 594.029 609.114
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
51 0 0 0 0 54 54 0 51 48 51 54 57 57 54 60 60 60 57 51 45 0 0 54 54 57 51 48 60 60 57 51 51 0 0 0 0 0 0 51 0 63 0 63 54 0 63 0 0 0 0 0 0 0 45 54 0 57 63 63 63 45 66 0 63 0 57 57 0 54 57 45 54 0 66 48 57 0 63 66 63 54 0 0 0 0 69 69 72 72 72 66 0 0 0 57 45 0 57 60 0 57 0 0 54 0 0 48 54 45 0 0 0 51 45 51 48 48 0 42 51 0 45 45 0 0 45 0 0 45 48 45 42 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-0.390625 -0.390625 0.390625 0.390625 1.171875 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 0.390625 -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 -0.390625 -0.390625 -0.390625 -0.390625 0.390625 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 -0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 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 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 0.390625 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 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
</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" >
89.502 90.0 95.0 100.0 105.0 110.0 112.037 114.075 115.0 116.112 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 368.647 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.239 2.201 2.832 3.165 3.272 3.15 3.15 3.205 3.272 3.441 3.629 3.802 3.965 4.123 4.278 4.43 4.582 4.734 4.886 5.039 5.193 5.349 5.506 5.666 5.828 5.993 6.16 6.331 6.504 6.681 6.861 7.045 7.232 7.423 7.618 7.817 8.019 8.226 8.437 8.651 8.869 9.091 9.317 9.545 9.776 10.009 10.244 10.478 10.712 10.944 11.171 11.39 11.6 11.795 11.972 12.125 12.249 12.338 12.389 12.4 12.4 12.391 12.371 12.34 12.299 12.249 12.19 12.122 12.047 11.963 11.873 11.777 11.674 11.566 11.453 11.335 11.213 11.087 10.957 10.825 10.689 10.551 10.411 10.269 10.126 9.981 9.836 9.689 9.542 9.394 9.247 9.099 8.952 8.805 8.658 8.512 8.367 8.222 8.079 7.936 7.795 7.655 7.517 7.38 7.244 7.11 6.977 6.846 6.717 6.589 6.463 6.339 6.216 6.095 5.977 5.859 5.744 5.631 5.519 5.409 5.301 5.195 5.09 4.987 4.886 4.787 4.69 4.594 4.5 4.408 4.317 4.229 4.141 4.056 3.972 3.889 3.809 3.729 3.652 3.575 3.501 3.427 3.356 3.285 3.216 3.148 3.082 3.017 2.954 2.891 2.83 2.77 2.712 2.654 2.598 2.543 2.489 2.436 2.384 2.333 2.284 2.235 2.187 2.141 2.095 2.05 2.007 1.964 1.922 1.881 1.841 1.801 1.763 1.725 1.688 1.652 1.616 1.582 1.548 1.515 1.482 1.45 1.419 1.389 1.359 1.33 1.301

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.272" PeakHeight="110.0" Num="3" Error="0.0">
-30.413 13.023 -3.108
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.272" EndFrequency="12.4" PeakHeight="368.647" Num="5" zHalfNm="272.689" Error="4.761">
-210.06 -57.743 13.202 1.558 0.508
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="6.112" Depth="0.122"/>
<TopsideChapman PeakHeight="368.647" PeakDensity="1907692.2" PeakScaleHeight="71.685" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
