<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-14 -287 19:10:00.000"
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 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" >
2026.10.14 (287) 19:10:00</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">
FF202628710141910009039031101000005015000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="11.350" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.435" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="27.635" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="6.100" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="6.100" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.650" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="335.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="335.000" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="10.900" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="550.000" 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="2.516" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="6.100" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="6.100" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="402.842" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="286.088" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="10.414" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="159.712" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="59.156" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="85.365" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="187.520" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.450" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="106">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 11.35
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
335.000 336.429 337.857 339.286 340.714 342.143 343.571 345.000 345.000 350.000 355.000 360.000 358.333 356.667 355.000 358.333 361.667 365.000 365.000 365.000 365.000 366.667 368.333 370.000 372.569 375.139 377.708 380.278 382.847 385.417 387.986 390.556 393.125 395.694 398.264 400.833 403.403 405.972 408.542 411.111 413.681 416.250 418.819 421.389 423.958 426.528 429.097 431.667 434.236 436.806 439.375 441.944 444.514 447.083 449.653 452.222 454.792 457.361 459.931 462.500 465.069 467.639 470.208 472.778 475.347 477.917 480.486 483.056 485.625 488.194 490.764 493.333 495.903 498.472 501.042 503.611 506.181 508.750 511.319 513.889 516.458 519.028 521.597 524.167 526.736 529.306 531.875 534.444 537.014 539.583 542.153 544.722 547.292 549.861 552.431 555.000 550.000 560.000 570.000 578.473 588.880 601.965 618.917 641.746 674.150 723.752
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
75 0 0 0 69 0 0 69 0 0 0 63 0 0 78 0 0 75 0 72 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 45 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 57 57 54 54 54 54 51 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 -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 -0.390625 1.953125 0.390625 0.390625 1.171875 2.734375 1.171875 -1.953125 -2.734375 -1.171875 -1.953125 -0.390625 2.734375 0.390625 1.171875 2.734375 -2.734375 0.390625 -1.953125 -2.734375 0.390625 1.171875 2.734375 -1.171875 1.953125 2.734375 -1.171875 -1.171875 -1.171875 1.953125 2.734375 1.171875 2.734375 -1.171875 1.953125 -0.390625 -1.171875 0.390625 0.390625 -0.390625 -0.390625 -1.953125 1.171875 1.171875 -0.390625 -0.390625 1.171875 -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
</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" >
89.636 90.0 95.0 100.0 105.0 110.0 115.0 115.502 120.0 121.003 125.0 126.505 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 402.842 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.23 1.689 2.178 2.435 2.516 2.414 2.392 2.392 2.392 2.482 2.516 2.625 2.781 2.938 3.098 3.259 3.422 3.587 3.753 3.921 4.091 4.262 4.434 4.607 4.781 4.955 5.131 5.307 5.483 5.66 5.837 6.015 6.193 6.371 6.55 6.729 6.908 7.087 7.267 7.446 7.626 7.806 7.986 8.167 8.347 8.527 8.707 8.886 9.066 9.244 9.421 9.597 9.771 9.943 10.111 10.276 10.435 10.589 10.734 10.87 10.994 11.103 11.196 11.268 11.319 11.346 11.35 11.349 11.342 11.328 11.307 11.279 11.245 11.205 11.159 11.108 11.052 10.99 10.924 10.853 10.779 10.7 10.618 10.533 10.444 10.352 10.258 10.161 10.062 9.961 9.858 9.753 9.647 9.539 9.43 9.321 9.21 9.098 8.986 8.873 8.76 8.647 8.534 8.42 8.307 8.193 8.08 7.967 7.855 7.743 7.632 7.521 7.41 7.301 7.192 7.084 6.977 6.87 6.765 6.66 6.557 6.454 6.353 6.252 6.153 6.055 5.957 5.861 5.766 5.672 5.58 5.488 5.398 5.309 5.221 5.134 5.048 4.963 4.88 4.798 4.717 4.637 4.558 4.481 4.404 4.329 4.255 4.182 4.11 4.039 3.969 3.9 3.833 3.766 3.701 3.636 3.573 3.51 3.449 3.389 3.329 3.271 3.213 3.157 3.101 3.046 2.993 2.94 2.888 2.837 2.786 2.737 2.688 2.64 2.594 2.547 2.502 2.457 2.414 2.371 2.328 2.287 2.246 2.206 2.166 2.127 2.089

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="2.516" PeakHeight="110.0" Num="3" Error="0.0">
-29.733 12.036 -2.667
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="2.516" EndFrequency="11.35" PeakHeight="402.842" Num="5" zHalfNm="286.088" Error="1.804">
-251.476 -41.127 20.563 -5.104 0.807
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="16.505" Depth="0.124"/>
<TopsideChapman PeakHeight="402.842" PeakDensity="1598294.0" PeakScaleHeight="85.365" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
