<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-02 -306 22:10:00.000"
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 2 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.44 Confidence: 65% PACIFIC flags: Severe F-spread, F2x cusp not found, Multiple candidates for F2o cusp, 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" >
2026.11.02 (306) 22:10:00</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">
FF202630611022210009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="7.750" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.692" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="20.862" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.800" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.800" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="8.100" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="455.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="455.000" 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="0.150" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="7.700" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="495.231" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="6.450" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="6.450" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="442.905" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="417.539" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.481" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="42.459" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="7.527" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="20.218" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="79.740" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.000" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="100">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.8 2.85 2.9 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
485.000 485.000 485.000 485.000 485.000 485.000 485.000 480.000 475.000 475.000 475.000 475.000 475.000 475.000 480.000 480.000 480.000 480.000 480.000 480.000 480.000 482.000 484.000 486.000 488.000 490.000 492.000 494.000 496.000 498.000 500.000 500.000 500.000 495.833 491.667 487.500 483.333 479.167 475.000 474.429 473.857 473.286 472.714 472.143 471.571 471.000 470.429 469.857 469.286 468.714 468.143 467.571 467.000 466.429 465.857 465.286 464.714 464.143 463.571 463.000 462.429 461.857 461.286 460.714 460.143 459.571 459.000 458.429 457.857 457.286 456.714 456.143 455.571 455.000 455.833 456.667 457.500 458.333 459.167 460.000 461.667 463.333 465.000 465.000 465.000 470.000 475.000 475.402 475.865 476.401 477.032 477.783 478.693 479.818 481.245 483.115 485.672 489.377 495.231 505.865
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
57 54 60 0 57 63 60 66 72 60 66 66 63 66 66 63 0 0 0 57 66 0 54 51 0 0 54 0 0 60 60 60 0 57 0 0 0 0 60 63 0 0 63 60 63 60 0 0 0 0 63 60 0 0 0 0 0 0 0 0 60 0 0 0 0 0 0 0 0 0 63 0 60 57 60 0 0 0 60 60 57 60 60 57 57 57 57 0 60 0 0 0 0 0 0 0 60 57 57 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-1.171875 -0.390625 -1.171875 0.390625 -1.171875 -2.734375 -0.390625 -0.390625 -0.390625 -0.390625 -1.171875 0.390625 0.390625 0.390625 -1.171875 0.390625 0.390625 -1.171875 -1.171875 0.390625 -0.390625 1.171875 -2.734375 -1.171875 -1.953125 -1.953125 -1.171875 -2.734375 -1.171875 -0.390625 -0.390625 -1.953125 -1.171875 -2.734375 1.171875 -1.953125 -1.171875 -2.734375 -0.390625 -0.390625 0.390625 0.390625 -1.953125 -0.390625 -0.390625 -0.390625 -1.953125 -1.953125 -0.390625 -1.171875 0.390625 0.390625 1.171875 -0.390625 -1.171875 -0.390625 -2.734375 -0.390625 -2.734375 -2.734375 -0.390625 -0.390625 -0.390625 -1.171875 -1.953125 -0.390625 0.390625 2.734375 -0.390625 0.390625 -1.171875 -1.171875 -1.171875 -1.171875 0.390625 -0.390625 -1.171875 1.171875 0.390625 -1.171875 0.390625 -1.953125 -1.953125 -0.390625 0.390625 -1.953125 -1.953125 1.171875 -0.390625 2.734375 1.171875 0.390625 1.171875 -1.953125 -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="129">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
93.502 95.0 100.0 105.0 110.0 115.0 120.0 125.0 130.0 135.0 140.0 142.407 145.0 150.0 155.0 160.0 165.0 170.0 174.814 175.0 180.0 185.0 190.0 195.0 200.0 205.0 207.221 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 442.905 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0
</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 0.327 0.305 0.273 0.228 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.201 0.225 0.248 0.272 0.296 0.32 0.343 0.354 0.373 0.42 0.492 0.59 0.697 0.799 0.893 0.982 1.068 1.151 1.233 1.314 1.395 1.477 1.559 1.642 1.726 1.811 1.898 1.988 2.079 2.173 2.269 2.369 2.472 2.578 2.688 2.803 2.923 3.047 3.178 3.315 3.459 3.612 3.774 3.946 4.13 4.328 4.542 4.776 5.034 5.321 5.645 6.018 6.457 6.985 7.573 7.75 7.742 7.664 7.514 7.306 7.054 6.77 6.464 6.144 5.818 5.491 5.169 4.853 4.548 4.254 3.973 3.706 3.453 3.214 2.99 2.779 2.581 2.397 2.224 2.064 1.914 1.774 1.645 1.524 1.412 1.308 1.212 1.123 1.04 0.963 0.892 0.826 0.764 0.708 0.655 0.607 0.562 0.52 0.481 0.446 0.412 0.382 0.353 0.327 0.303 0.28 0.259 0.24 0.222 0.206

</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="7.75" PeakHeight="442.905" Num="5" zHalfNm="417.539" Error="10.062">
-171.002 -102.998 44.358 0.662 -6.704
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="97.221" Depth="0.154"/>
<TopsideChapman PeakHeight="442.905" PeakDensity="745192.3" PeakScaleHeight="20.218" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
