<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-22 -295 17:00:00.000"
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="12.0">
<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" >
2026.10.22 (295) 17:00:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.63" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-11.40" 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">
FF202629510221700009039031101000005012000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="11.900" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.564" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="30.515" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="6.150" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="6.150" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="12.250" 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="0.300" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="11.050" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="480.000" 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="3.187" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="6.150" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="6.150" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.265" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="373.601" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="264.516" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.799" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="147.345" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="62.278" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="81.781" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="180.900" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.410" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="116">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 11.4 11.45 11.5 11.55 11.6 11.65 11.7 11.75 11.8 11.85 11.9
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
335.000 335.000 335.000 335.000 335.000 335.000 335.000 335.000 335.000 335.000 335.000 335.000 340.000 340.000 340.000 345.000 345.000 345.000 345.000 350.000 350.000 350.000 350.000 355.000 355.000 355.000 355.000 355.000 360.000 360.000 360.000 360.000 360.000 362.500 365.000 366.250 367.500 368.750 370.000 371.949 373.898 375.847 377.797 379.746 381.695 383.644 385.593 387.542 389.492 391.441 393.390 395.339 397.288 399.237 401.186 403.136 405.085 407.034 408.983 410.932 412.881 414.831 416.780 418.729 420.678 422.627 424.576 426.525 428.475 430.424 432.373 434.322 436.271 438.220 440.169 442.119 444.068 446.017 447.966 449.915 451.864 453.814 455.763 457.712 459.661 461.610 463.559 465.508 467.458 469.407 471.356 473.305 475.254 477.203 479.153 481.102 483.051 485.000 480.000 485.000 490.000 495.000 500.000 504.805 510.160 516.164 522.943 530.658 539.517 549.794 561.861 576.229 593.624 615.118 642.352 677.980
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
57 57 0 63 66 0 0 0 0 0 0 51 66 0 63 66 69 69 66 69 69 69 66 0 63 66 63 63 66 66 57 63 63 0 63 0 66 0 63 0 60 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 57 54 54 57 57 60 60 60 60 60 57 57 57 60 57 51 51 45
</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 -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 1.953125 -0.390625 -2.734375 1.953125 -1.953125 -1.953125 1.953125 -1.171875 0.390625 1.171875 -1.953125 1.953125 0.390625 0.390625 -2.734375 1.953125 -2.734375 -1.953125 0.390625 -1.953125 -2.734375 -2.734375 2.734375 -1.953125 1.171875 -0.390625 -2.734375 2.734375 0.390625 2.734375 1.953125 -1.953125 1.953125 0.390625 1.953125 -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 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 95.0 100.0 105.0 110.0 112.399 114.797 115.0 117.196 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 373.601 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.239 2.143 2.758 3.083 3.187 3.065 3.065 3.075 3.187 3.293 3.479 3.661 3.839 4.013 4.185 4.355 4.522 4.689 4.855 5.021 5.186 5.352 5.519 5.687 5.855 6.025 6.197 6.37 6.545 6.723 6.902 7.085 7.269 7.456 7.646 7.839 8.035 8.233 8.434 8.638 8.844 9.051 9.261 9.471 9.682 9.892 10.101 10.307 10.508 10.703 10.891 11.068 11.234 11.386 11.521 11.638 11.735 11.811 11.864 11.894 11.9 11.9 11.893 11.878 11.855 11.825 11.787 11.743 11.692 11.634 11.571 11.502 11.428 11.35 11.266 11.178 11.087 10.991 10.892 10.79 10.685 10.577 10.467 10.355 10.24 10.124 10.007 9.887 9.767 9.646 9.524 9.401 9.278 9.154 9.03 8.905 8.781 8.657 8.533 8.41 8.286 8.164 8.041 7.92 7.799 7.679 7.559 7.441 7.324 7.207 7.092 6.977 6.864 6.752 6.641 6.532 6.423 6.316 6.21 6.105 6.002 5.9 5.799 5.699 5.601 5.504 5.409 5.315 5.222 5.13 5.04 4.951 4.864 4.778 4.693 4.609 4.527 4.446 4.366 4.288 4.211 4.135 4.06 3.987 3.914 3.843 3.773 3.705 3.637 3.571 3.505 3.441 3.378 3.316 3.255 3.195 3.136 3.078 3.022 2.966 2.911 2.857 2.804 2.752 2.701 2.651 2.602 2.553 2.506 2.459 2.413 2.368 2.324 2.281 2.238 2.196 2.155 2.115 2.075 2.037 1.998 1.961 1.924 1.888 1.853 1.818 1.784

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.187" PeakHeight="110.0" Num="3" Error="0.0">
-30.347 12.925 -3.063
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.187" EndFrequency="11.9" PeakHeight="373.601" Num="5" zHalfNm="264.516" Error="2.672">
-228.229 -40.4 10.95 2.112 -0.838
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="7.196" Depth="0.122"/>
<TopsideChapman PeakHeight="373.601" PeakDensity="1756947.9" PeakScaleHeight="81.781" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
