<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-22 -295 14:50:00.000"
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) 14:50:00</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">
FF202629510221450009039031101000005012000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="10.550" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.389" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="25.207" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="5.900" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="5.900" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.100" 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="0.200" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="10.000" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="556.963" 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="5.900" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="5.900" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.363" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="381.033" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="257.000" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.770" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="156.962" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="53.012" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="87.961" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="211.080" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.210" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="94">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
340.000 341.667 343.333 345.000 346.667 348.333 350.000 345.000 345.000 350.000 350.000 355.000 355.000 355.000 360.000 360.000 365.000 365.000 370.000 370.000 370.000 375.000 375.000 380.000 380.000 380.000 385.000 385.000 390.000 390.000 395.000 400.000 400.000 405.000 405.000 410.000 410.000 415.000 415.000 420.000 420.000 425.000 425.000 428.277 431.554 434.831 438.108 441.385 444.662 447.939 451.216 454.493 457.770 461.047 464.324 467.601 470.878 474.155 477.432 480.709 483.986 487.263 490.540 493.817 497.094 500.371 503.648 506.925 510.202 513.479 516.756 520.033 523.310 526.587 529.864 533.141 536.418 539.695 542.972 546.249 549.491 553.047 556.963 561.298 566.122 570.000 580.000 585.000 595.000 600.000 610.000 625.000 640.000 659.352
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
60 0 0 0 0 0 57 63 60 66 66 66 66 66 66 69 63 66 60 57 63 60 63 54 57 0 51 60 63 63 66 63 69 63 66 63 63 57 63 66 72 69 72 69 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 -1.953125 -0.390625 -0.390625 1.171875 -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 -0.390625 0.390625 0.390625 -0.390625 0.390625 -0.390625 -0.390625 0.390625 -0.390625 0.390625 2.734375 0.390625 2.734375 -1.171875 -1.171875 0.390625 2.734375 2.734375 -1.953125 1.953125 -0.390625 1.953125 1.953125 0.390625 1.953125 -0.390625 -0.390625 1.953125 2.734375 0.390625 -0.390625 1.953125 2.734375 0.390625 -0.390625 -0.390625 1.953125 1.953125 0.390625 1.953125 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" >
89.483 90.0 95.0 100.0 105.0 110.0 111.53 113.061 114.591 115.0 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 381.033 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 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 3.411 3.59 3.75 3.899 4.043 4.184 4.322 4.46 4.597 4.735 4.872 5.01 5.149 5.288 5.427 5.568 5.708 5.849 5.99 6.131 6.273 6.415 6.556 6.698 6.839 6.981 7.122 7.263 7.404 7.544 7.685 7.825 7.965 8.105 8.245 8.385 8.525 8.665 8.804 8.944 9.083 9.222 9.361 9.5 9.637 9.773 9.907 10.037 10.161 10.277 10.38 10.465 10.523 10.549 10.55 10.548 10.54 10.525 10.504 10.478 10.446 10.409 10.367 10.32 10.269 10.213 10.153 10.089 10.022 9.952 9.878 9.801 9.721 9.639 9.555 9.468 9.379 9.288 9.196 9.102 9.007 8.91 8.812 8.714 8.614 8.514 8.413 8.312 8.21 8.108 8.005 7.903 7.801 7.698 7.596 7.494 7.392 7.291 7.19 7.089 6.989 6.89 6.791 6.693 6.595 6.499 6.402 6.307 6.213 6.119 6.026 5.935 5.844 5.754 5.665 5.576 5.489 5.403 5.318 5.234 5.151 5.068 4.987 4.907 4.828 4.75 4.673 4.597 4.522 4.448 4.375 4.303 4.232 4.162 4.093 4.025 3.958 3.892 3.827 3.763 3.7 3.638 3.577 3.517 3.457 3.399 3.341 3.285 3.229 3.174 3.12 3.067 3.015 2.963 2.912 2.863 2.814 2.765 2.718 2.671 2.625 2.58 2.536 2.492 2.449 2.407 2.365 2.324 2.284 2.245 2.206 2.167 2.13 2.093 2.057 2.021 1.986 1.951 1.917

</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="10.55" PeakHeight="381.033" Num="5" zHalfNm="257.0" Error="3.389">
-224.97 -63.616 26.264 -6.139 2.019
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="4.591" Depth="0.123"/>
<TopsideChapman PeakHeight="381.033" PeakDensity="1380924.4" PeakScaleHeight="87.961" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
