<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-22 -295 16:00:00.000"
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="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) 16:00:00</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">
FF202629510221600009039031101000005012000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="11.300" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.418" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="27.319" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="6.250" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="6.250" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.550" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="355.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="355.000" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="10.900" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="562.193" 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="3.330" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="6.250" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="6.250" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.333" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="388.121" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="268.349" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.326" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="155.748" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="60.102" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="86.909" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="205.200" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.230" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="102">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
355.000 358.750 362.500 366.250 370.000 370.000 365.000 365.000 365.000 370.000 370.000 370.000 370.000 370.000 372.500 375.000 380.000 380.000 380.000 382.500 385.000 385.000 385.000 385.000 385.000 390.000 390.000 390.000 392.500 395.000 395.000 397.500 400.000 400.000 400.000 402.500 405.000 405.000 407.807 410.614 413.421 416.228 419.035 421.842 424.649 427.456 430.263 433.070 435.877 438.684 441.491 444.298 447.105 449.912 452.719 455.526 458.333 461.140 463.947 466.754 469.561 472.368 475.175 477.982 480.789 483.596 486.404 489.211 492.018 494.825 497.632 500.439 503.246 506.053 508.860 511.667 514.474 517.281 520.088 522.895 525.702 528.509 531.316 534.123 536.930 539.737 542.544 545.351 548.158 550.965 553.772 556.579 559.386 562.193 565.000 575.000 585.000 600.000 615.000 633.339 655.319 682.146
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
78 51 45 0 63 0 63 66 66 63 0 66 63 60 0 0 0 0 0 0 60 63 66 66 66 63 69 69 0 66 66 60 66 0 69 0 66 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 51 48 0 48 42 42 42
</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 -1.953125 0.390625 -2.734375 -2.734375 -1.953125 0.390625 -2.734375 1.171875 0.390625 -1.953125 -2.734375 2.734375 2.734375 1.171875 0.390625 2.734375 1.953125 0.390625 -2.734375 1.953125 2.734375 -2.734375 2.734375 -2.734375 2.734375 2.734375 -1.171875 -1.953125 -1.953125 -1.171875 2.734375 1.953125 -2.734375 -0.390625 -1.953125 0.390625 1.171875 0.390625 -2.734375 0.390625 0.390625 1.953125 -1.953125 -1.171875 -2.734375 1.171875 -0.390625 1.953125 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" >
89.492 90.0 95.0 100.0 105.0 110.0 111.797 113.594 115.0 115.391 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 388.121 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.24 2.24 2.882 3.222 3.33 3.207 3.207 3.303 3.33 3.502 3.676 3.842 4.001 4.157 4.309 4.46 4.608 4.756 4.903 5.049 5.195 5.341 5.486 5.632 5.778 5.925 6.072 6.219 6.367 6.515 6.664 6.814 6.965 7.116 7.268 7.421 7.575 7.73 7.885 8.042 8.2 8.358 8.518 8.678 8.839 9.001 9.164 9.327 9.49 9.654 9.817 9.979 10.14 10.299 10.454 10.605 10.749 10.883 11.006 11.112 11.198 11.26 11.294 11.3 11.299 11.293 11.28 11.26 11.234 11.201 11.163 11.119 11.07 11.016 10.957 10.893 10.825 10.753 10.678 10.599 10.516 10.43 10.342 10.251 10.157 10.061 9.963 9.863 9.761 9.658 9.554 9.448 9.341 9.233 9.124 9.015 8.905 8.795 8.684 8.573 8.462 8.351 8.24 8.13 8.019 7.909 7.799 7.69 7.581 7.472 7.365 7.257 7.151 7.046 6.941 6.837 6.734 6.631 6.53 6.43 6.331 6.232 6.135 6.039 5.943 5.849 5.756 5.664 5.573 5.484 5.395 5.308 5.221 5.136 5.052 4.969 4.887 4.806 4.726 4.648 4.57 4.494 4.419 4.345 4.272 4.2 4.129 4.059 3.99 3.922 3.855 3.79 3.725 3.661 3.599 3.537 3.476 3.417 3.358 3.3 3.243 3.187 3.132 3.078 3.024 2.972 2.92 2.869 2.819 2.77 2.722 2.675 2.628 2.582 2.537 2.493 2.449 2.406 2.364 2.322 2.282 2.242 2.202 2.164 2.126 2.088 2.051

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.33" PeakHeight="110.0" Num="3" Error="0.0">
-30.458 13.087 -3.137
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.33" EndFrequency="11.3" PeakHeight="388.121" Num="5" zHalfNm="268.349" Error="2.876">
-234.063 -59.094 22.351 -2.375 0.451
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="5.391" Depth="0.123"/>
<TopsideChapman PeakHeight="388.121" PeakDensity="1584243.1" PeakScaleHeight="86.909" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
