<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-14 -287 12:20:00.000"
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) 12:20:00</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">
FF202628710141220009039031101000005015000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="11.300" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.888" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="32.637" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="5.800" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="5.800" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.700" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="305.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="305.000" 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="11.050" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="430.000" 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="3.180" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="5.800" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="5.800" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.262" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="312.511" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="238.911" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="7.993" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="95.681" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="38.356" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="54.295" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="136.380" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.030" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="111">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
5.8 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" >
305.000 305.000 305.000 305.000 305.000 305.000 305.000 305.000 310.000 307.500 305.000 305.000 305.000 310.000 310.000 310.000 310.000 310.000 310.000 310.000 315.000 315.000 315.000 315.000 315.000 315.000 315.000 320.000 320.000 320.000 320.000 320.000 321.486 322.973 324.459 325.946 327.432 328.919 330.405 331.892 333.378 334.865 336.351 337.838 339.324 340.811 342.297 343.784 345.270 346.757 348.243 349.730 351.216 352.703 354.189 355.676 357.162 358.649 360.135 361.622 363.108 364.595 366.081 367.568 369.054 370.541 372.027 373.514 375.000 376.486 377.973 379.459 380.946 382.432 383.919 385.405 386.892 388.378 389.865 391.351 392.838 394.324 395.811 397.297 398.784 400.270 401.757 403.243 404.730 406.216 407.703 409.189 410.676 412.162 413.649 415.135 416.622 418.108 419.595 421.081 422.568 424.054 425.541 427.027 428.514 430.000 435.000 443.733 456.745 478.200 520.262
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 69 72 66 75 75 75 72 0 0 60 69 69 72 75 78 78 78 75 75 72 75 72 72 72 72 72 72 75 75 0 81 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 60 0 48 51 48
</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 -1.171875 -0.390625 0.390625 -1.953125 -2.734375 0.390625 -2.734375 -1.953125 1.171875 -2.734375 1.171875 1.171875 2.734375 2.734375 0.390625 1.171875 1.171875 1.953125 1.953125 1.953125 1.953125 0.390625 -0.390625 -0.390625 1.953125 -0.390625 -2.734375 -1.171875 -2.734375 -0.390625 -1.953125 1.171875 0.390625 -2.734375 -1.171875 -1.953125 1.953125 2.734375 1.171875 2.734375 2.734375 0.390625 -1.171875 -1.953125 -0.390625 -1.953125 1.171875 0.390625 -0.390625 -1.171875 1.171875 -2.734375 2.734375 -1.171875 1.171875 1.171875 -1.171875 2.734375 -2.734375 -1.171875 -2.734375 -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" >
89.515 90.0 95.0 100.0 105.0 110.0 112.428 114.855 115.0 117.283 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 312.511 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.239 2.138 2.752 3.077 3.18 3.058 3.058 3.065 3.18 3.317 3.547 3.759 3.959 4.152 4.34 4.524 4.707 4.888 5.068 5.249 5.43 5.613 5.797 5.983 6.172 6.363 6.558 6.756 6.959 7.165 7.376 7.592 7.813 8.04 8.273 8.512 8.758 9.01 9.268 9.532 9.8 10.07 10.338 10.597 10.839 11.047 11.204 11.289 11.3 11.298 11.28 11.244 11.193 11.127 11.048 10.955 10.851 10.737 10.613 10.48 10.339 10.192 10.039 9.88 9.717 9.55 9.38 9.208 9.033 8.857 8.68 8.503 8.325 8.148 7.971 7.795 7.62 7.446 7.274 7.104 6.936 6.77 6.607 6.445 6.287 6.131 5.977 5.826 5.678 5.533 5.391 5.251 5.115 4.981 4.85 4.722 4.597 4.475 4.355 4.239 4.125 4.013 3.905 3.799 3.696 3.595 3.497 3.401 3.308 3.217 3.128 3.042 2.958 2.876 2.797 2.719 2.643 2.57 2.498 2.429 2.361 2.295 2.231 2.169 2.108 2.049 1.991 1.935 1.881 1.828 1.777 1.727 1.678 1.631 1.585 1.541 1.497 1.455 1.414 1.374 1.335 1.298 1.261 1.225 1.191 1.157 1.124 1.093 1.062 1.032 1.002 0.974 0.947 0.92 0.894 0.868 0.844 0.82 0.797 0.774 0.752 0.731 0.71 0.69 0.671 0.652 0.633 0.615 0.598 0.581 0.564 0.548 0.533 0.518 0.503 0.489 0.475 0.461 0.448 0.436 0.423 0.411 0.4 0.388 0.377 0.367 0.356

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.18" PeakHeight="110.0" Num="3" Error="0.0">
-30.342 12.917 -3.06
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.18" EndFrequency="11.3" PeakHeight="312.511" Num="5" zHalfNm="238.911" Error="2.684">
-157.381 -53.62 15.073 1.075 -0.375
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="7.283" Depth="0.122"/>
<TopsideChapman PeakHeight="312.511" PeakDensity="1584243.1" PeakScaleHeight="54.295" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
