<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-14 -287 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="15.0">
<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: 50% PACIFIC flags: F2o cusp not found, 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" >
2026.10.14 (287) 16:10:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.63" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-11.39" 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">
FF202628710141610009039031101000005015000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="10.850" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.445" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="26.533" 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="11.250" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="325.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="325.000" 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="10.100" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="521.101" 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="3.322" 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="4.329" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="387.559" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="257.204" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.409" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="171.751" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="60.087" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="95.552" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="210.920" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.440" 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" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
330.000 325.000 328.750 332.500 336.250 340.000 345.000 347.500 350.000 350.000 351.667 353.333 355.000 355.000 357.555 360.111 362.666 365.222 367.777 370.332 372.888 375.443 377.999 380.554 383.109 385.665 388.220 390.776 393.331 395.887 398.442 400.997 403.553 406.108 408.664 411.219 413.774 416.330 418.885 421.441 423.996 426.551 429.107 431.662 434.218 436.773 439.328 441.884 444.439 446.995 449.550 452.105 454.661 457.216 459.772 462.327 464.882 467.438 469.993 472.549 475.104 477.660 480.215 482.770 485.326 487.881 490.437 492.992 495.547 498.103 500.658 503.214 505.769 508.324 510.880 513.435 515.991 518.546 521.101 525.000 535.000 540.000 545.000 555.000 565.000 570.000 585.000 595.000 610.000 625.000 645.000 665.000 690.000 720.927
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
57 54 0 0 0 63 54 0 54 63 0 0 66 66 48 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 45 0 0 0 48 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
</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 -2.734375 -0.390625 -0.390625 -1.953125 0.390625 -2.734375 2.734375 1.953125 -2.734375 2.734375 1.953125 1.953125 1.171875 2.734375 2.734375 -0.390625 -2.734375 1.953125 -2.734375 1.171875 2.734375 0.390625 2.734375 1.953125 0.390625 -2.734375 2.734375 2.734375 -2.734375 -0.390625 1.953125 1.953125 1.171875 -2.734375 2.734375 0.390625 -2.734375 1.171875 1.953125 -1.953125 1.171875 -1.953125 0.390625 2.734375 -1.171875 -0.390625 -1.953125 -0.390625 1.953125 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" >
89.494 90.0 95.0 100.0 105.0 110.0 111.832 113.663 115.0 115.495 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 387.559 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.24 2.235 2.875 3.214 3.322 3.199 3.199 3.289 3.322 3.47 3.633 3.793 3.951 4.107 4.262 4.416 4.569 4.721 4.873 5.024 5.174 5.325 5.475 5.626 5.776 5.927 6.077 6.228 6.38 6.531 6.683 6.836 6.988 7.142 7.295 7.449 7.604 7.759 7.914 8.069 8.225 8.38 8.536 8.691 8.846 8.999 9.152 9.304 9.453 9.6 9.745 9.885 10.021 10.151 10.274 10.389 10.495 10.59 10.672 10.741 10.793 10.829 10.848 10.85 10.849 10.844 10.833 10.816 10.794 10.768 10.737 10.701 10.661 10.616 10.568 10.516 10.46 10.401 10.339 10.274 10.206 10.135 10.061 9.986 9.908 9.827 9.745 9.661 9.576 9.489 9.401 9.311 9.22 9.128 9.035 8.942 8.847 8.752 8.657 8.561 8.465 8.368 8.271 8.174 8.077 7.981 7.884 7.787 7.69 7.594 7.498 7.403 7.307 7.213 7.118 7.024 6.931 6.838 6.746 6.655 6.564 6.474 6.385 6.296 6.208 6.121 6.035 5.949 5.865 5.781 5.698 5.616 5.534 5.454 5.374 5.296 5.218 5.141 5.065 4.99 4.916 4.842 4.77 4.698 4.628 4.558 4.489 4.421 4.354 4.287 4.222 4.158 4.094 4.031 3.969 3.908 3.848 3.788 3.73 3.672 3.615 3.559 3.503 3.449 3.395 3.342 3.289 3.238 3.187 3.137 3.088 3.039 2.991 2.944 2.898 2.852 2.807 2.763 2.719 2.676 2.633 2.591 2.55 2.51 2.47 2.431 2.392

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.322" PeakHeight="110.0" Num="3" Error="0.0">
-30.452 13.079 -3.133
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.322" EndFrequency="10.85" PeakHeight="387.559" Num="5" zHalfNm="257.204" Error="1.885">
-245.79 -40.564 15.854 -1.571 0.0070
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="5.495" Depth="0.123"/>
<TopsideChapman PeakHeight="387.559" PeakDensity="1460576.9" PeakScaleHeight="95.552" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
