<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-02 -306 22:00:00.000"
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 33 1 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.44 Confidence: 65% PACIFIC flags: Moderate F-spread, Multiple candidates for F2x cusp, One of F2 cusps was derived from the other, Trace overlaps while constructing baseline</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" >
2026.11.02 (306) 22:00:00</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">
FF202630611022200009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="8.250" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.504" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="20.656" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.950" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.950" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="8.550" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="420.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="420.000" 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="8.100" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="545.556" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.200" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.200" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="474.096" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="425.481" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.572" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="75.344" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="14.293" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="37.114" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="97.240" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.030" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="107">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.95 3.0 3.05 3.1 3.15 3.2 3.25 3.3 3.35 3.4 3.45 3.5 3.55 3.6 3.65 3.7 3.75 3.8 3.85 3.9 3.95 4.0 4.05 4.1 4.15 4.2 4.25 4.3 4.35 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
440.000 444.167 448.333 452.500 456.667 420.000 440.000 450.000 465.000 465.625 466.250 466.875 467.500 468.125 468.750 469.375 470.000 465.000 460.000 455.000 452.500 450.000 455.000 457.500 460.000 470.000 472.500 475.000 485.000 485.000 490.000 495.000 500.000 500.000 510.000 495.000 495.000 500.000 500.000 505.000 505.000 505.000 505.000 506.667 508.333 510.000 512.500 515.000 510.000 509.286 508.571 507.857 507.143 506.429 505.714 505.000 505.000 502.500 500.000 497.500 495.000 495.357 495.714 496.071 496.429 496.786 497.143 497.500 497.857 498.214 498.571 498.929 499.286 499.643 500.000 495.000 505.000 510.000 495.000 491.667 488.333 485.000 480.000 470.000 472.500 475.000 482.000 489.000 496.000 503.000 510.000 512.500 515.000 517.500 520.000 520.930 522.031 523.354 524.975 527.006 529.626 533.135 538.077 545.556 558.199 584.175 668.104
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
60 0 0 0 0 0 0 60 57 0 0 0 54 0 0 0 0 54 0 0 0 0 69 0 72 57 63 63 57 57 0 0 69 63 57 63 0 63 0 66 0 0 66 0 66 60 0 60 63 0 0 57 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 60 0 63 60 66 0 57 57 57 51 51 54 60 57 0 0 0 0 0 0 0 0 0 51 0 0 51 51 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 -1.171875 -0.390625 -0.390625 -0.390625 -1.171875 -0.390625 -1.171875 -1.171875 -1.171875 -1.171875 -0.390625 -1.171875 -0.390625 -1.171875 -1.171875 -1.171875 -0.390625 -0.390625 -0.390625 -0.390625 -1.171875 -1.953125 -0.390625 -1.953125 -1.171875 -1.171875 -1.171875 -0.390625 -1.171875 -1.171875 -1.953125 -1.171875 -1.953125 -0.390625 -0.390625 -0.390625 -1.171875 -1.953125 -0.390625 -1.171875 -1.171875 -1.171875 -2.734375 -0.390625 -1.171875 -0.390625 -1.171875 -1.171875 -1.953125 -1.171875 -1.953125 -1.953125 -1.171875 -1.953125 -1.171875 -1.953125 -1.953125 -1.171875 -1.953125 -0.390625 -1.171875 -1.171875 -0.390625 -1.953125 -1.953125 -1.953125 -1.953125 -1.953125 -1.171875 -2.734375 -1.171875 -1.953125 -1.171875 -0.390625 -0.390625 -1.171875 -1.953125 -2.734375 -2.734375 -1.953125 -2.734375 -1.953125 0.390625 1.171875 -1.953125 -1.171875 -1.953125 -2.734375 -2.734375 -1.171875 -1.171875 -1.953125 -1.953125 -1.953125 -1.953125 -1.953125 -1.171875 -1.953125 -2.734375 -1.171875 -1.953125 -2.734375 -2.734375
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.33" Type="vertical" >
<Tabulated Num="182">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 95.0 100.0 105.0 110.0 115.0 120.0 125.0 130.0 135.0 140.0 141.79 145.0 150.0 155.0 160.0 165.0 170.0 173.581 175.0 180.0 185.0 190.0 195.0 200.0 205.0 205.371 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 474.096 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.234 0.307 0.343 0.354 0.351 0.342 0.326 0.303 0.269 0.222 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.207 0.231 0.255 0.28 0.304 0.328 0.352 0.354 0.391 0.442 0.506 0.583 0.667 0.753 0.84 0.926 1.012 1.098 1.184 1.27 1.357 1.445 1.535 1.626 1.718 1.813 1.909 2.008 2.11 2.214 2.321 2.431 2.544 2.661 2.782 2.907 3.037 3.171 3.31 3.455 3.606 3.763 3.927 4.098 4.277 4.465 4.662 4.868 5.086 5.314 5.555 5.809 6.075 6.355 6.647 6.948 7.254 7.555 7.832 8.062 8.21 8.25 8.25 8.23 8.185 8.116 8.025 7.916 7.79 7.65 7.499 7.337 7.167 6.99 6.808 6.623 6.435 6.245 6.056 5.866 5.678 5.492 5.308 5.127 4.949 4.775 4.604 4.438 4.275 4.117 3.964 3.815 3.67 3.53 3.394 3.263 3.136 3.014 2.896 2.782 2.672 2.566 2.464 2.365 2.271 2.18 2.092 2.008 1.927 1.849 1.774 1.702 1.633 1.566 1.503 1.441 1.383 1.326 1.272 1.22 1.17 1.122 1.076 1.032 0.99 0.949 0.91 0.873 0.837 0.803 0.77 0.738 0.708 0.679 0.651 0.624 0.598 0.574 0.55 0.527 0.506 0.485 0.465 0.446 0.427 0.41 0.393 0.377 0.361 0.346 0.332 0.318 0.305 0.293 0.281 0.269 0.258 0.247 0.237 0.227 0.218 0.209 0.2

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="0.354" PeakHeight="110.0" Num="3" Error="0.0">
-18.791 2.435 -0.142
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="0.354" EndFrequency="8.25" PeakHeight="474.096" Num="5" zHalfNm="425.481" Error="7.202">
-219.742 -80.329 37.488 -2.309 -3.833
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="95.371" Depth="0.154"/>
<TopsideChapman PeakHeight="474.096" PeakDensity="844447.9" PeakScaleHeight="37.114" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
