<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-03 -307 15:00:00.000"
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="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: 50% PACIFIC flags: F2x cusp not found, One of F2 cusps was derived from the other, Unidentified traces above foF2</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" >
2026.11.03 (307) 15:00:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.63" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-11.41" 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">
FF202630711031500009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="11.550" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.724" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="31.458" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="9.700" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="9.700" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.850" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="395.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="395.000" 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="0.250" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="10.800" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="441.667" 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="3.377" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="9.700" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="9.700" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.355" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="319.583" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="215.037" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.895" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="138.569" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="53.071" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="74.954" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="159.930" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.590" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="38">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
395.000 395.000 400.000 402.500 405.000 405.000 407.500 410.000 415.000 412.500 410.000 415.000 420.000 415.000 425.000 420.000 425.000 425.000 427.500 430.000 435.000 438.333 441.667 445.000 448.736 452.841 457.373 462.401 468.013 474.315 481.444 489.574 498.931 509.816 522.637 537.960 556.597 579.754
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 51 0 0 0 0 0 0 48 0 57 51 54 48 51 54 48 0 0 0 54 0 0 45 0 51 51 51 0 0 51 0 51 42 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 -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 1.171875 -2.734375 -0.390625 1.171875 0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -1.171875 1.953125 -0.390625 1.171875 -0.390625 -0.390625 -0.390625 -0.390625 1.171875 1.953125
</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 95.0 100.0 105.0 110.0 111.603 113.205 114.808 115.0 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 319.583 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.241 2.272 2.922 3.267 3.377 3.254 3.254 3.377 3.385 3.593 3.8 4.011 4.228 4.454 4.688 4.931 5.181 5.437 5.697 5.959 6.22 6.479 6.734 6.985 7.231 7.472 7.708 7.939 8.165 8.387 8.604 8.817 9.026 9.232 9.433 9.631 9.826 10.016 10.202 10.384 10.56 10.73 10.893 11.045 11.184 11.308 11.41 11.488 11.536 11.55 11.55 11.544 11.529 11.504 11.471 11.43 11.38 11.323 11.26 11.189 11.113 11.03 10.943 10.85 10.753 10.651 10.545 10.436 10.324 10.209 10.09 9.97 9.847 9.723 9.597 9.47 9.341 9.211 9.081 8.95 8.819 8.688 8.556 8.425 8.293 8.162 8.032 7.902 7.773 7.644 7.516 7.39 7.264 7.139 7.016 6.893 6.772 6.652 6.534 6.417 6.301 6.186 6.074 5.962 5.852 5.744 5.637 5.531 5.428 5.325 5.224 5.125 5.027 4.931 4.837 4.744 4.652 4.562 4.473 4.386 4.301 4.217 4.134 4.053 3.973 3.895 3.818 3.742 3.668 3.595 3.524 3.454 3.385 3.317 3.251 3.186 3.122 3.059 2.998 2.937 2.878 2.82 2.763 2.707 2.653 2.599 2.546 2.495 2.444 2.394 2.346 2.298 2.251 2.206 2.161 2.117 2.074 2.031 1.99 1.949 1.909 1.87 1.832 1.795 1.758 1.722 1.687 1.652 1.618 1.585 1.553 1.521 1.49 1.459 1.429 1.4 1.371 1.343 1.316 1.289 1.262 1.236 1.211 1.186 1.161 1.138 1.114

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.377" PeakHeight="110.0" Num="3" Error="0.0">
-30.491 13.137 -3.161
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.377" EndFrequency="11.55" PeakHeight="319.583" Num="5" zHalfNm="215.037" Error="2.811">
-190.743 -23.714 14.882 -7.05 1.85
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="4.808" Depth="0.123"/>
<TopsideChapman PeakHeight="319.583" PeakDensity="1655117.9" PeakScaleHeight="74.954" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
