<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-14 -287 17:50:00.000"
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="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) 17:50:00</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">
FF202628710141750009039031101000005015000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="11.300" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.466" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="27.867" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="5.850" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="5.850" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.550" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="330.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="330.000" 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="10.800" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="535.000" 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="3.008" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="5.850" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="5.850" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.178" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="389.805" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="274.554" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="10.095" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="153.876" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="58.391" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="84.618" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="192.740" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.330" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="110">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
5.85 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" >
330.000 335.000 332.500 330.000 335.000 335.000 336.364 337.727 339.091 340.455 341.818 343.182 344.545 345.909 347.273 348.636 350.000 355.000 355.000 355.000 355.000 357.308 359.615 361.923 364.231 366.538 368.846 371.154 373.462 375.769 378.077 380.385 382.692 385.000 387.308 389.615 391.923 394.231 396.538 398.846 401.154 403.462 405.769 408.077 410.385 412.692 415.000 417.308 419.615 421.923 424.231 426.538 428.846 431.154 433.462 435.769 438.077 440.385 442.692 445.000 447.308 449.615 451.923 454.231 456.538 458.846 461.154 463.462 465.769 468.077 470.385 472.692 475.000 477.308 479.615 481.923 484.231 486.538 488.846 491.154 493.462 495.769 498.077 500.385 502.692 505.000 507.308 509.615 511.923 514.231 516.538 518.846 521.154 523.462 525.769 528.077 530.385 532.692 535.000 535.000 540.000 550.000 557.958 567.305 578.439 591.926 608.599 629.741 657.425 695.243
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 0 0 69 66 69 0 66 0 0 69 0 0 0 69 0 72 66 0 0 66 0 69 0 0 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 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 45 51 51 51 54 54 54 48 54 48 51 42
</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 1.171875 -2.734375 0.390625 -1.953125 -0.390625 -0.390625 -2.734375 -2.734375 0.390625 -1.953125 0.390625 2.734375 -2.734375 -2.734375 0.390625 -1.953125 0.390625 0.390625 -2.734375 -1.171875 -0.390625 1.953125 1.171875 -2.734375 -0.390625 2.734375 -0.390625 -1.171875 -1.953125 1.953125 1.953125 -0.390625 -1.171875 1.953125 1.171875 -1.171875 -2.734375 2.734375 1.953125 -0.390625 -0.390625 2.734375 -1.171875 1.953125 2.734375 -0.390625 0.390625 1.953125 1.953125 -2.734375 -2.734375 0.390625 1.953125 2.734375 1.953125 1.171875 1.953125 1.953125 1.953125 -0.390625 -1.953125 2.734375 1.171875 1.953125 -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
</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" >
89.544 90.0 95.0 100.0 105.0 110.0 113.179 115.0 116.357 119.536 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 389.805 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.237 2.022 2.604 2.91 3.008 2.886 2.886 2.886 3.008 3.024 3.197 3.364 3.527 3.687 3.845 4.002 4.157 4.312 4.466 4.62 4.774 4.929 5.083 5.238 5.393 5.549 5.706 5.864 6.022 6.181 6.342 6.503 6.665 6.829 6.993 7.159 7.326 7.494 7.663 7.834 8.006 8.178 8.352 8.527 8.703 8.879 9.056 9.233 9.409 9.586 9.761 9.934 10.104 10.271 10.433 10.588 10.735 10.871 10.993 11.099 11.185 11.249 11.288 11.3 11.3 11.296 11.284 11.266 11.24 11.208 11.17 11.126 11.076 11.021 10.961 10.896 10.826 10.752 10.674 10.593 10.508 10.42 10.328 10.234 10.137 10.038 9.937 9.834 9.729 9.623 9.515 9.406 9.295 9.184 9.072 8.96 8.847 8.733 8.619 8.505 8.391 8.278 8.164 8.05 7.937 7.824 7.711 7.599 7.488 7.377 7.267 7.158 7.049 6.942 6.835 6.729 6.624 6.52 6.417 6.315 6.215 6.115 6.016 5.919 5.822 5.727 5.633 5.54 5.448 5.358 5.268 5.18 5.093 5.007 4.923 4.839 4.757 4.676 4.596 4.517 4.44 4.363 4.288 4.214 4.141 4.069 3.998 3.928 3.86 3.792 3.726 3.66 3.596 3.533 3.47 3.409 3.349 3.289 3.231 3.174 3.117 3.062 3.007 2.954 2.901 2.849 2.798 2.748 2.699 2.651 2.603 2.557 2.511 2.466 2.421 2.378 2.335 2.293 2.252 2.211 2.171 2.132 2.093 2.056 2.018 1.982 1.946

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.008" PeakHeight="110.0" Num="3" Error="0.0">
-30.202 12.712 -2.966
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.008" EndFrequency="11.3" PeakHeight="389.805" Num="5" zHalfNm="274.554" Error="1.627">
-237.11 -50.348 18.814 -1.765 0.14
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="9.536" Depth="0.122"/>
<TopsideChapman PeakHeight="389.805" PeakDensity="1584243.1" PeakScaleHeight="84.618" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
