<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-22 -295 14:30:00.000"
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="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 44 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.44 Confidence: 45% PACIFIC flags: F2o cusp not found, Multiple candidates for F2x cusp, One of F2 cusps was derived from the other, F2O model cusp does not fit trace</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) 14:30:00</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">
FF202629510221430009039031101000005012000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="10.400" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.391" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="24.864" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="6.200" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="6.200" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="10.750" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="340.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="340.000" 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="9.750" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="546.266" 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="3.395" 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="4.363" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="382.438" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="252.989" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.631" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="164.759" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="53.794" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="92.397" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="217.600" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.260" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="85">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
340.000 345.000 350.000 353.333 356.667 360.000 360.000 360.000 360.000 360.000 360.000 365.000 365.000 370.000 373.333 376.667 380.000 380.000 385.000 385.000 390.000 390.000 395.000 400.000 400.000 405.000 405.000 410.000 410.000 415.000 415.000 420.000 422.500 425.000 428.237 431.475 434.712 437.949 441.186 444.424 447.661 450.898 454.136 457.373 460.610 463.848 467.085 470.322 473.559 476.797 480.034 483.271 486.509 489.746 492.983 496.221 499.458 502.695 505.932 509.170 512.407 515.644 518.882 522.119 525.356 528.594 531.831 535.068 537.482 540.128 543.042 546.266 549.853 553.868 558.391 565.000 570.000 575.000 585.000 595.000 605.000 620.000 635.000 660.000 689.746
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
54 66 72 0 0 63 0 66 69 66 57 66 63 63 0 0 54 57 54 51 51 66 69 66 72 69 69 60 69 60 63 72 0 57 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
</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 2.734375 0.390625 0.390625 1.171875 0.390625 0.390625 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 -1.953125 -2.734375 1.171875 1.171875 2.734375 1.171875 -2.734375 -2.734375 1.171875 -1.953125 1.953125 2.734375 1.953125 2.734375 0.390625 2.734375 -1.953125 -1.171875 1.171875 -2.734375 -2.734375 -0.390625 -0.390625 -1.171875 -1.953125 -1.171875 1.171875 1.171875 -2.734375
</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" >
89.483 90.0 95.0 100.0 105.0 110.0 111.533 113.065 114.598 115.0 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 382.438 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.241 2.284 2.938 3.284 3.395 3.272 3.272 3.395 3.409 3.579 3.741 3.897 4.05 4.2 4.348 4.494 4.638 4.782 4.925 5.067 5.208 5.348 5.488 5.627 5.766 5.905 6.043 6.18 6.318 6.455 6.591 6.728 6.864 7.001 7.137 7.273 7.409 7.544 7.68 7.816 7.952 8.088 8.224 8.361 8.497 8.633 8.769 8.905 9.04 9.175 9.309 9.441 9.572 9.7 9.825 9.944 10.056 10.158 10.247 10.319 10.37 10.397 10.4 10.399 10.393 10.382 10.365 10.343 10.315 10.283 10.247 10.206 10.16 10.111 10.058 10.001 9.941 9.878 9.812 9.743 9.671 9.597 9.52 9.441 9.36 9.278 9.193 9.107 9.02 8.931 8.841 8.75 8.658 8.565 8.471 8.377 8.282 8.187 8.092 7.996 7.9 7.804 7.708 7.612 7.516 7.42 7.324 7.229 7.134 7.04 6.945 6.852 6.759 6.666 6.574 6.483 6.392 6.302 6.213 6.124 6.036 5.949 5.863 5.777 5.692 5.609 5.526 5.444 5.362 5.282 5.203 5.124 5.046 4.97 4.894 4.819 4.745 4.672 4.6 4.528 4.458 4.388 4.32 4.252 4.186 4.12 4.055 3.991 3.927 3.865 3.804 3.743 3.684 3.625 3.567 3.509 3.453 3.398 3.343 3.289 3.236 3.184 3.132 3.081 3.031 2.982 2.934 2.886 2.839 2.793 2.747 2.702 2.658 2.614 2.572 2.529 2.488 2.447 2.407 2.367 2.328 2.29 2.252 2.215 2.179 2.143 2.107

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.395" PeakHeight="110.0" Num="3" Error="0.0">
-30.503 13.156 -3.17
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.395" EndFrequency="10.4" PeakHeight="382.438" Num="5" zHalfNm="252.989" Error="1.812">
-232.359 -56.188 24.542 -4.643 0.808
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="4.598" Depth="0.123"/>
<TopsideChapman PeakHeight="382.438" PeakDensity="1341935.5" PeakScaleHeight="92.397" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
