<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-14 -287 15:30:00.000"
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="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 11 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.44 Confidence: 100%</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) 15:30:00</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">
FF202628710141530009039031101000005015000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="11.300" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.182" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="24.657" 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="11.500" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="310.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="310.000" 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="657.468" 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="3.379" 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="4.356" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="424.102" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="265.609" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.076" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="205.331" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="75.059" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="110.243" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="246.350" 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="109">
<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 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" >
310.000 311.111 312.222 313.333 314.444 315.556 316.667 317.778 318.889 320.000 320.000 320.000 315.000 315.000 320.000 325.000 330.000 330.000 330.000 331.667 333.333 335.000 336.667 338.333 340.000 344.177 348.354 352.532 356.709 360.886 365.063 369.241 373.418 377.595 381.772 385.949 390.127 394.304 398.481 402.658 406.835 411.013 415.190 419.367 423.544 427.722 431.899 436.076 440.253 444.430 448.608 452.785 456.962 461.139 465.316 469.494 473.671 477.848 482.025 486.203 490.380 494.557 498.734 502.911 507.089 511.266 515.443 519.620 523.797 527.975 532.152 536.329 540.506 544.684 548.861 553.038 557.215 561.392 565.570 569.747 573.924 578.101 582.278 586.456 590.633 594.810 598.987 603.165 607.342 611.519 615.696 619.873 624.051 628.228 632.405 636.582 640.759 644.937 649.114 653.291 657.468 661.646 665.823 670.000 690.000 707.519 730.000 759.898 801.608
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
51 0 0 0 0 0 0 0 0 0 0 57 60 48 0 63 0 0 63 0 0 63 0 0 63 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 0 0 0 0 0 0 0 0 0 0 0 0 0 0 48 48 45 45 45 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 1.953125 -0.390625 -1.171875 -1.953125 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 -1.171875 -0.390625 0.390625 -0.390625 -2.734375 -1.953125 1.171875 0.390625 -1.171875 -2.734375 1.171875 2.734375 -1.171875 -1.171875 1.953125 1.171875 -1.953125 0.390625 -1.953125 -1.171875 2.734375 -1.171875 1.953125 -1.953125 2.734375 -2.734375 1.171875 1.953125 0.390625 -1.171875 -0.390625 -0.390625 0.390625 -0.390625 -1.171875 -1.171875 1.953125 1.953125 -0.390625 2.734375 0.390625 -0.390625 -1.171875 1.953125 -2.734375 2.734375 -0.390625 1.171875 -1.953125 -1.953125 0.390625 -1.953125 1.953125 -1.171875 -1.171875 -1.953125 1.953125 -2.734375 -1.171875 1.953125 -2.734375 1.171875 1.171875 -1.171875 -2.734375 1.953125 -0.390625 0.390625 2.734375 -1.953125 -1.953125 1.171875 0.390625 2.734375 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" >
89.485 90.0 95.0 100.0 105.0 110.0 111.594 113.189 114.783 115.0 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 424.102 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.241 2.273 2.924 3.269 3.379 3.256 3.256 3.379 3.386 3.536 3.675 3.809 3.942 4.076 4.211 4.349 4.492 4.639 4.79 4.946 5.107 5.271 5.439 5.61 5.782 5.954 6.126 6.296 6.464 6.629 6.791 6.95 7.106 7.259 7.408 7.554 7.696 7.836 7.974 8.108 8.241 8.371 8.499 8.625 8.75 8.873 8.994 9.114 9.232 9.35 9.466 9.581 9.696 9.809 9.922 10.034 10.145 10.255 10.364 10.471 10.578 10.682 10.784 10.883 10.977 11.064 11.143 11.21 11.261 11.292 11.3 11.3 11.297 11.289 11.278 11.262 11.242 11.218 11.191 11.16 11.126 11.088 11.047 11.003 10.956 10.906 10.854 10.799 10.741 10.681 10.619 10.555 10.489 10.421 10.351 10.28 10.207 10.132 10.056 9.979 9.9 9.821 9.74 9.659 9.577 9.494 9.41 9.325 9.24 9.155 9.069 8.982 8.896 8.809 8.721 8.634 8.547 8.459 8.372 8.284 8.197 8.109 8.022 7.935 7.849 7.762 7.676 7.59 7.505 7.419 7.335 7.25 7.167 7.083 7.0 6.918 6.836 6.755 6.674 6.594 6.514 6.435 6.356 6.279 6.202 6.125 6.049 5.974 5.899 5.825 5.752 5.68 5.608 5.537 5.466 5.396 5.327 5.259 5.191 5.124 5.058 4.992 4.927 4.863 4.8 4.737 4.675 4.613 4.552 4.492 4.433 4.374 4.316 4.259 4.202 4.146 4.091 4.036 3.982 3.928 3.876 3.824 3.772 3.721 3.671 3.621 3.572

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.379" PeakHeight="110.0" Num="3" Error="0.0">
-30.492 13.139 -3.162
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.379" EndFrequency="11.3" PeakHeight="424.102" Num="5" zHalfNm="265.609" Error="4.867">
-278.537 -53.246 34.519 -17.473 5.418
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="4.783" Depth="0.123"/>
<TopsideChapman PeakHeight="424.102" PeakDensity="1584243.1" PeakScaleHeight="110.243" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
