<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-14 -287 17:20:00.000"
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) 17:20:00</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">
FF202628710141720009039031101000005015000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="11.200" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.428" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="27.193" 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="11.450" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="355.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="355.000" 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="10.850" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="560.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="3.131" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="6.200" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="6.200" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.238" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="392.286" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="275.733" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.928" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="152.303" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="57.563" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="84.341" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="201.690" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.190" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="101">
<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 10.9 10.95 11.0 11.05 11.1 11.15 11.2
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
355.000 357.500 360.000 360.000 360.000 360.000 360.000 360.000 365.000 366.667 368.333 370.000 372.500 375.000 375.000 375.000 375.000 377.403 379.805 382.208 384.610 387.013 389.416 391.818 394.221 396.623 399.026 401.429 403.831 406.234 408.636 411.039 413.442 415.844 418.247 420.649 423.052 425.455 427.857 430.260 432.662 435.065 437.468 439.870 442.273 444.675 447.078 449.481 451.883 454.286 456.688 459.091 461.494 463.896 466.299 468.701 471.104 473.506 475.909 478.312 480.714 483.117 485.519 487.922 490.325 492.727 495.130 497.532 499.935 502.338 504.740 507.143 509.545 511.948 514.351 516.753 519.156 521.558 523.961 526.364 528.766 531.169 533.571 535.974 538.377 540.779 543.182 545.584 547.987 550.390 552.792 555.195 557.597 560.000 570.000 585.000 595.000 610.000 630.000 650.000 676.952
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
60 0 60 60 66 69 66 63 69 0 0 66 0 0 0 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 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 54 54 54 51 48 48 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 -1.171875 0.390625 1.953125 0.390625 0.390625 0.390625 -2.734375 -0.390625 2.734375 0.390625 -1.171875 0.390625 1.953125 -1.953125 0.390625 0.390625 -0.390625 0.390625 -0.390625 0.390625 -0.390625 1.171875 2.734375 0.390625 -1.171875 2.734375 -2.734375 -0.390625 -2.734375 -2.734375 -1.171875 2.734375 -0.390625 0.390625 1.171875 -2.734375 -0.390625 -1.171875 2.734375 1.953125 -2.734375 -2.734375 -1.171875 -2.734375 -0.390625 1.171875 -2.734375 -1.171875 -2.734375 1.171875 -1.171875 0.390625 1.953125 1.171875 2.734375 -1.953125 -0.390625 -2.734375 1.171875 -1.953125 1.171875 -1.171875 -1.171875 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" >
89.523 90.0 95.0 100.0 105.0 110.0 112.642 115.0 115.283 117.925 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 392.286 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.238 2.105 2.71 3.029 3.131 3.009 3.009 3.009 3.131 3.206 3.381 3.55 3.715 3.876 4.033 4.189 4.342 4.493 4.643 4.791 4.939 5.086 5.232 5.378 5.523 5.669 5.814 5.959 6.105 6.251 6.397 6.544 6.691 6.839 6.987 7.137 7.287 7.438 7.59 7.743 7.897 8.052 8.208 8.366 8.524 8.684 8.845 9.007 9.17 9.334 9.498 9.663 9.828 9.993 10.155 10.316 10.472 10.623 10.765 10.894 11.008 11.099 11.164 11.196 11.2 11.199 11.191 11.176 11.154 11.125 11.09 11.049 11.002 10.95 10.892 10.83 10.762 10.691 10.615 10.536 10.453 10.366 10.277 10.184 10.089 9.992 9.892 9.79 9.687 9.582 9.475 9.367 9.258 9.147 9.036 8.925 8.812 8.7 8.587 8.473 8.36 8.247 8.133 8.02 7.908 7.795 7.683 7.572 7.461 7.35 7.241 7.132 7.023 6.916 6.81 6.704 6.599 6.496 6.393 6.291 6.191 6.091 5.993 5.896 5.799 5.704 5.611 5.518 5.426 5.336 5.247 5.159 5.072 4.986 4.902 4.818 4.736 4.655 4.575 4.497 4.419 4.343 4.268 4.194 4.121 4.049 3.978 3.909 3.84 3.773 3.707 3.641 3.577 3.514 3.452 3.391 3.331 3.272 3.213 3.156 3.1 3.045 2.99 2.937 2.884 2.833 2.782 2.732 2.683 2.635 2.587 2.541 2.495 2.45 2.406 2.362 2.32 2.278 2.237 2.196 2.156 2.117 2.079 2.041 2.004 1.968 1.932

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.131" PeakHeight="110.0" Num="3" Error="0.0">
-30.303 12.86 -3.034
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.131" EndFrequency="11.2" PeakHeight="392.286" Num="5" zHalfNm="275.733" Error="1.568">
-234.255 -62.643 25.444 -2.988 0.081
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="7.925" Depth="0.122"/>
<TopsideChapman PeakHeight="392.286" PeakDensity="1556327.5" PeakScaleHeight="84.341" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
