<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-22 -295 16:40:00.000"
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) 16:40:00</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">
FF202629510221640009039031101000005012000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="11.800" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.517" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="29.701" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="6.150" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="6.150" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="12.150" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="345.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="345.000" 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="0.200" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="11.100" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="505.000" 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="3.244" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="6.200" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="6.200" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.292" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="382.474" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="270.187" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.652" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="150.906" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="63.253" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="84.316" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="188.890" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.360" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="114">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 11.7 11.75 11.8
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
350.000 345.000 345.000 347.500 350.000 350.000 350.000 350.000 350.000 350.000 350.000 355.000 355.000 355.000 355.000 355.000 355.000 360.000 360.000 360.000 360.000 360.000 365.000 365.000 365.000 365.000 370.000 370.000 370.000 370.000 375.000 375.000 375.000 376.940 378.881 380.821 382.761 384.701 386.642 388.582 390.522 392.463 394.403 396.343 398.284 400.224 402.164 404.104 406.045 407.985 409.925 411.866 413.806 415.746 417.687 419.627 421.567 423.507 425.448 427.388 429.328 431.269 433.209 435.149 437.090 439.030 440.970 442.910 444.851 446.791 448.731 450.672 452.612 454.552 456.493 458.433 460.373 462.313 464.254 466.194 468.134 470.075 472.015 473.955 475.896 477.836 479.776 481.716 483.657 485.597 487.537 489.478 491.418 493.358 495.299 497.239 499.179 501.119 503.060 505.000 510.000 515.000 522.500 530.000 535.000 545.000 555.000 565.000 575.000 590.000 610.000 630.000 656.952 691.515
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 60 60 0 54 57 60 66 66 63 66 66 69 63 63 66 63 66 66 69 69 66 69 69 69 69 69 72 72 69 66 0 63 0 51 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 51 48 42 0 48 48 48 45 48 48 51 51 48 51 48
</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 0.390625 0.390625 -0.390625 0.390625 0.390625 1.171875 0.390625 2.734375 2.734375 0.390625 -0.390625 1.953125 1.953125 2.734375 1.953125 2.734375 1.953125 1.171875 1.171875 2.734375 1.953125 2.734375 -1.953125 -1.953125 -1.953125 1.171875 -1.171875 0.390625 0.390625 2.734375 1.953125 1.953125 -2.734375 1.171875 1.953125 1.953125 2.734375 0.390625 -2.734375 -2.734375 1.953125 -1.171875 -1.953125 -1.171875 -1.953125 0.390625 -0.390625 1.953125 1.171875 0.390625 -0.390625 0.390625 2.734375 2.734375 2.734375 0.390625 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 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" >
89.506 90.0 95.0 100.0 105.0 110.0 112.155 114.311 115.0 116.466 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 382.474 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.239 2.182 2.808 3.138 3.244 3.122 3.122 3.161 3.244 3.374 3.554 3.729 3.899 4.065 4.227 4.387 4.545 4.701 4.856 5.011 5.165 5.318 5.473 5.627 5.783 5.939 6.097 6.256 6.417 6.579 6.744 6.91 7.079 7.251 7.425 7.602 7.781 7.963 8.149 8.337 8.528 8.721 8.917 9.116 9.316 9.517 9.719 9.92 10.119 10.316 10.509 10.695 10.873 11.041 11.198 11.34 11.465 11.573 11.662 11.729 11.774 11.797 11.8 11.799 11.791 11.775 11.752 11.722 11.686 11.643 11.593 11.538 11.478 11.412 11.342 11.266 11.187 11.103 11.016 10.925 10.83 10.733 10.633 10.53 10.425 10.318 10.209 10.098 9.986 9.872 9.757 9.641 9.524 9.406 9.288 9.169 9.05 8.931 8.811 8.692 8.572 8.453 8.334 8.216 8.098 7.98 7.863 7.747 7.631 7.516 7.402 7.289 7.177 7.066 6.955 6.846 6.738 6.631 6.525 6.42 6.316 6.214 6.112 6.012 5.913 5.815 5.719 5.623 5.529 5.437 5.345 5.255 5.166 5.078 4.991 4.906 4.822 4.739 4.657 4.577 4.498 4.42 4.343 4.267 4.193 4.119 4.047 3.976 3.906 3.837 3.77 3.703 3.638 3.573 3.51 3.447 3.386 3.326 3.267 3.208 3.151 3.095 3.039 2.985 2.931 2.879 2.827 2.776 2.726 2.677 2.629 2.582 2.535 2.489 2.444 2.4 2.357 2.314 2.272 2.231 2.191 2.151 2.112 2.073 2.036 1.999 1.963

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.244" PeakHeight="110.0" Num="3" Error="0.0">
-30.392 12.991 -3.093
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.244" EndFrequency="11.8" PeakHeight="382.474" Num="5" zHalfNm="270.187" Error="3.063">
-234.359 -45.033 11.511 2.97 -1.097
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="6.466" Depth="0.122"/>
<TopsideChapman PeakHeight="382.474" PeakDensity="1727543.4" PeakScaleHeight="84.316" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
