<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-02 -306 19:30:00.000"
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 22 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.44 Confidence: 70% PACIFIC flags: 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" >
2026.11.02 (306) 19:30:00</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">
FF202630611021930009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="11.650" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.492" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="29.037" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="5.100" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="5.100" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.950" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="430.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="430.000" 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="10.650" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="490.000" 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="2.308" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="9.200" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="9.200" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="435.425" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="389.878" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.749" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="71.115" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="38.495" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="48.268" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="106.720" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="2.970" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="132">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
495.000 495.000 500.000 505.000 510.000 515.000 520.000 525.000 527.917 530.833 533.750 536.667 539.583 542.500 545.417 548.333 551.250 554.167 557.083 560.000 562.500 565.000 567.500 570.000 572.500 575.000 580.000 580.000 580.000 585.000 585.000 590.000 595.000 597.500 600.000 596.458 592.917 589.375 585.833 582.292 578.750 575.208 571.667 568.125 564.583 561.042 557.500 553.958 550.417 546.875 543.333 539.792 536.250 532.708 529.167 525.625 522.083 518.542 515.000 511.458 507.917 504.375 500.833 497.292 493.750 490.208 486.667 483.125 479.583 476.042 472.500 468.958 465.417 461.875 458.333 454.792 451.250 447.708 444.167 440.625 437.083 433.542 430.000 430.000 430.000 430.000 435.000 437.500 440.000 440.000 440.000 442.500 445.000 445.000 445.000 455.000 460.000 457.500 455.000 457.500 460.000 465.000 470.000 470.000 470.000 472.500 475.000 485.000 485.000 490.000 490.000 490.000 495.000 500.000 505.000 505.000 510.000 515.000 520.000 520.000 525.000 530.000 535.000 540.000 545.000 551.358 558.689 567.232 577.318 589.404 604.151 622.547
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
51 48 0 0 57 0 0 54 0 0 0 0 0 0 0 0 54 0 0 51 0 0 0 0 0 51 48 0 51 48 54 0 48 0 48 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 57 0 0 0 0 69 0 54 0 66 60 0 0 63 0 0 60 63 60 57 0 54 54 60 54 57 57 57 57 57 54 57 57 57 57 57 63 63 60 57 54 57 57 54 51 51 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-1.171875 -1.171875 -0.390625 -0.390625 -1.171875 -0.390625 -1.953125 -1.171875 -1.171875 0.390625 -1.171875 -2.734375 -0.390625 -0.390625 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -0.390625 1.171875 -1.953125 -1.171875 -1.171875 -1.171875 -0.390625 -0.390625 -0.390625 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -0.390625 2.734375 0.390625 1.171875 2.734375 -1.953125 2.734375 2.734375 1.171875 1.953125 1.171875 -2.734375 1.171875 2.734375 -1.171875 1.953125 -1.953125 1.953125 0.390625 0.390625 1.171875 0.390625 1.171875 1.171875 -0.390625 1.171875 -1.953125 1.953125 -1.171875 -1.171875 2.734375 -0.390625 -0.390625 1.953125 0.390625 -2.734375 -2.734375 0.390625 -2.734375 -1.953125 0.390625 2.734375 2.734375 -1.953125 -1.171875 -1.953125 -1.171875 -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 -1.171875 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -1.171875 -1.171875 -0.390625 -0.390625 -0.390625 -0.390625 -0.390625 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -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" >
89.682 90.0 95.0 100.0 105.0 110.0 115.0 116.561 120.0 123.123 125.0 129.684 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 435.425 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.227 1.549 1.998 2.233 2.308 2.235 2.181 2.181 2.181 2.217 2.308 2.316 2.463 2.633 2.8 2.95 3.084 3.206 3.317 3.422 3.52 3.614 3.705 3.793 3.878 3.962 4.044 4.125 4.205 4.284 4.363 4.441 4.52 4.598 4.677 4.755 4.835 4.915 4.995 5.077 5.159 5.243 5.328 5.414 5.502 5.592 5.684 5.778 5.875 5.975 6.078 6.185 6.297 6.413 6.535 6.663 6.799 6.945 7.102 7.274 7.464 7.68 7.933 8.246 8.682 9.556 10.819 11.192 11.39 11.513 11.591 11.634 11.65 11.65 11.64 11.607 11.553 11.479 11.387 11.279 11.155 11.018 10.87 10.71 10.542 10.365 10.181 9.992 9.797 9.599 9.398 9.195 8.99 8.784 8.578 8.372 8.167 7.963 7.761 7.561 7.363 7.168 6.975 6.786 6.599 6.416 6.237 6.061 5.888 5.719 5.554 5.392 5.235 5.081 4.931 4.784 4.641 4.502 4.367 4.235 4.107 3.982 3.86 3.742 3.628 3.516 3.408 3.303 3.201 3.101 3.005 2.912 2.821 2.733 2.648 2.565 2.485 2.407 2.331 2.258 2.187 2.118 2.052 1.987 1.924 1.864 1.805 1.748 1.693 1.639 1.587 1.537 1.488 1.441 1.396 1.351 1.309 1.267 1.227 1.188 1.15 1.114 1.078 1.044 1.011 0.979 0.948 0.918 0.888 0.86 0.833 0.806 0.781 0.756 0.732 0.709 0.686 0.664 0.643 0.623 0.603 0.584 0.565 0.547 0.53 0.513 0.496

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="2.308" PeakHeight="110.0" Num="3" Error="0.0">
-29.49 11.696 -2.524
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="2.308" EndFrequency="11.65" PeakHeight="435.425" Num="5" zHalfNm="389.878" Error="19.089">
-219.62 -104.558 -11.464 46.388 -16.487
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="19.684" Depth="0.127"/>
<TopsideChapman PeakHeight="435.425" PeakDensity="1683902.0" PeakScaleHeight="48.268" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
