<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-22 -295 16:10:00.000"
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="12.0">
<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: 95% PACIFIC flags: Multiple candidates for F2x cusp</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" >
2026.10.22 (295) 16:10:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.63" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-11.40" 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">
FF202629510221610009039031101000005012000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="11.400" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.396" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="27.319" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="6.050" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="6.050" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.700" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="350.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="350.000" 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="10.900" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="562.231" 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="3.312" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="6.050" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="6.050" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.324" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="397.860" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="271.185" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.410" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="167.763" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="65.133" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="93.300" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="209.100" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.380" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="108">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
350.000 350.000 350.000 350.000 355.000 355.000 355.000 355.000 355.000 355.000 355.000 356.250 357.500 358.750 360.000 360.000 360.000 365.000 365.000 365.000 365.000 370.000 370.000 370.000 370.000 375.000 375.000 375.000 375.000 375.000 380.000 382.500 385.000 385.000 387.769 390.538 393.308 396.077 398.846 401.615 404.385 407.154 409.923 412.692 415.462 418.231 421.000 423.769 426.538 429.308 432.077 434.846 437.615 440.385 443.154 445.923 448.692 451.462 454.231 457.000 459.769 462.538 465.308 468.077 470.846 473.615 476.385 479.154 481.923 484.692 487.462 490.231 493.000 495.769 498.538 501.308 504.077 506.846 509.615 512.385 515.154 517.923 520.692 523.462 526.231 529.000 531.769 534.538 537.308 540.077 542.846 545.615 548.385 551.154 553.923 556.692 559.462 562.231 565.000 570.000 585.000 590.000 600.000 620.000 640.000 660.000 695.000 741.386
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 63 63 66 0 66 0 72 72 72 69 0 0 0 72 69 66 0 0 69 69 66 69 69 69 66 69 69 69 69 72 0 72 75 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 0 0 0 0 0 0 0 0 0 0 0 0 0 0 54 54 48 51 51 51 51 48 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 -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 -2.734375 -2.734375 1.953125 1.953125 2.734375 -1.171875 -2.734375 0.390625 -2.734375 -2.734375 -1.953125 1.171875 -2.734375 1.953125 -2.734375 1.953125 0.390625 1.953125 -0.390625 -2.734375 -1.953125 -1.953125 -2.734375 -0.390625 2.734375 -1.171875 -1.953125 -1.953125 -0.390625 2.734375 -0.390625 -0.390625 0.390625 -2.734375 -1.953125 0.390625 1.953125 0.390625 0.390625 1.171875 0.390625 0.390625 1.953125 -1.171875 1.953125 1.953125 -2.734375 -1.953125 2.734375 -2.734375 -1.953125 -2.734375 -0.390625 2.734375 2.734375 0.390625 0.390625 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" >
89.495 90.0 95.0 100.0 105.0 110.0 111.872 113.743 115.0 115.615 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 397.86 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.24 2.228 2.866 3.204 3.312 3.189 3.189 3.272 3.312 3.463 3.626 3.783 3.937 4.087 4.235 4.382 4.528 4.673 4.819 4.964 5.109 5.255 5.401 5.548 5.695 5.843 5.992 6.142 6.293 6.445 6.598 6.752 6.907 7.063 7.221 7.379 7.538 7.699 7.86 8.022 8.186 8.35 8.515 8.68 8.846 9.012 9.178 9.344 9.509 9.673 9.836 9.997 10.155 10.31 10.46 10.604 10.742 10.872 10.991 11.099 11.193 11.271 11.332 11.374 11.397 11.4 11.399 11.394 11.382 11.364 11.34 11.312 11.278 11.239 11.195 11.146 11.094 11.037 10.976 10.912 10.844 10.773 10.698 10.621 10.541 10.459 10.374 10.286 10.197 10.106 10.013 9.919 9.823 9.726 9.627 9.528 9.427 9.326 9.224 9.121 9.018 8.914 8.811 8.706 8.602 8.498 8.394 8.289 8.185 8.081 7.978 7.875 7.772 7.669 7.567 7.466 7.365 7.265 7.165 7.066 6.968 6.871 6.774 6.678 6.583 6.489 6.395 6.303 6.211 6.12 6.031 5.942 5.854 5.767 5.681 5.596 5.512 5.429 5.347 5.265 5.185 5.106 5.028 4.951 4.875 4.799 4.725 4.652 4.579 4.508 4.438 4.368 4.3 4.232 4.166 4.1 4.035 3.971 3.908 3.846 3.785 3.725 3.665 3.607 3.549 3.492 3.436 3.381 3.327 3.273 3.221 3.169 3.118 3.067 3.018 2.969 2.921 2.874 2.827 2.781 2.736 2.691 2.648 2.605 2.562 2.52 2.479

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.312" PeakHeight="110.0" Num="3" Error="0.0">
-30.444 13.067 -3.128
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.312" EndFrequency="11.4" PeakHeight="397.86" Num="5" zHalfNm="271.185" Error="2.98">
-249.566 -48.302 16.244 -0.861 0.24
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="5.615" Depth="0.123"/>
<TopsideChapman PeakHeight="397.86" PeakDensity="1612407.0" PeakScaleHeight="93.3" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
