<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-14 -287 16:30:00.000"
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 44 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.44 Confidence: 45% PACIFIC flags: F2o cusp not found, Multiple candidates for F2x cusp, One of F2 cusps was derived from the other, F2O model cusp does not fit trace</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) 16:30:00</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">
FF202628710141630009039031101000005015000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="10.850" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.388" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="25.908" 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="11.200" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="340.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="340.000" 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="10.100" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="540.287" 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="3.279" 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="4.309" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="402.644" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="267.333" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.572" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="179.283" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="62.724" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="99.767" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="218.170" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.470" 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" >
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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
340.000 340.000 340.000 342.500 345.000 345.000 340.000 350.000 350.833 351.667 352.500 353.333 354.167 355.000 360.000 361.250 362.500 363.750 365.000 370.000 370.000 370.000 370.000 372.703 375.406 378.109 380.812 383.515 386.218 388.921 391.624 394.327 397.030 399.733 402.436 405.139 407.842 410.545 413.248 415.951 418.654 421.357 424.059 426.762 429.465 432.168 434.871 437.574 440.277 442.980 445.683 448.386 451.089 453.792 456.495 459.198 461.901 464.604 467.307 470.010 472.713 475.416 478.119 480.822 483.525 486.228 488.931 491.634 494.337 497.040 499.743 502.446 505.149 507.852 510.555 513.258 515.961 518.664 521.367 524.070 526.773 529.475 532.178 534.881 537.584 540.287 545.000 555.000 560.000 565.000 575.000 585.000 595.000 605.000 620.000 635.000 650.000 670.000 695.000 720.000 754.729
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
51 0 60 0 0 60 66 54 0 0 0 0 0 69 63 0 0 0 69 63 69 66 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 0 0 0 0 0 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-0.390625 -0.390625 -0.390625 -2.734375 -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 -1.171875 -0.390625 -0.390625 -2.734375 -0.390625 0.390625 2.734375 0.390625 1.953125 -1.953125 1.171875 -1.953125 2.734375 -2.734375 0.390625 2.734375 1.953125 -1.171875 1.953125 2.734375 1.171875 1.953125 0.390625 -0.390625 1.171875 2.734375 -1.171875 -0.390625 -2.734375 2.734375 0.390625 1.171875 -2.734375 1.953125 -2.734375 2.734375 1.953125 0.390625 -1.171875 -1.171875 1.171875 -0.390625 0.390625 -2.734375 -1.953125 -0.390625 2.734375 1.953125
</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" >
89.5 90.0 95.0 100.0 105.0 110.0 112.008 114.016 115.0 116.024 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 402.644 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.24 2.206 2.838 3.172 3.279 3.157 3.157 3.217 3.279 3.405 3.558 3.706 3.852 3.995 4.137 4.277 4.418 4.557 4.697 4.837 4.977 5.117 5.258 5.399 5.541 5.683 5.826 5.97 6.115 6.26 6.406 6.553 6.701 6.849 6.998 7.148 7.299 7.45 7.601 7.753 7.906 8.058 8.211 8.364 8.516 8.669 8.82 8.971 9.121 9.269 9.415 9.558 9.699 9.836 9.968 10.095 10.216 10.33 10.436 10.532 10.618 10.692 10.753 10.8 10.831 10.848 10.85 10.849 10.844 10.834 10.819 10.799 10.775 10.746 10.713 10.676 10.635 10.591 10.543 10.491 10.436 10.379 10.318 10.255 10.189 10.12 10.049 9.976 9.902 9.825 9.746 9.666 9.584 9.501 9.416 9.331 9.244 9.156 9.068 8.978 8.888 8.797 8.706 8.614 8.522 8.43 8.338 8.245 8.152 8.059 7.966 7.874 7.781 7.689 7.596 7.504 7.413 7.322 7.231 7.14 7.05 6.961 6.872 6.783 6.696 6.608 6.522 6.436 6.35 6.266 6.182 6.099 6.016 5.935 5.854 5.773 5.694 5.615 5.537 5.46 5.384 5.309 5.234 5.16 5.087 5.015 4.943 4.873 4.803 4.734 4.666 4.599 4.532 4.466 4.402 4.337 4.274 4.212 4.15 4.089 4.029 3.97 3.911 3.853 3.796 3.74 3.684 3.63 3.576 3.522 3.47 3.418 3.367 3.316 3.267 3.218 3.169 3.121 3.074 3.028 2.982 2.937 2.893 2.849 2.806 2.764 2.722

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.279" PeakHeight="110.0" Num="3" Error="0.0">
-30.419 13.03 -3.111
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.279" EndFrequency="10.85" PeakHeight="402.644" Num="5" zHalfNm="267.333" Error="2.759">
-258.713 -41.466 14.254 -0.948 0.253
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="6.024" Depth="0.122"/>
<TopsideChapman PeakHeight="402.644" PeakDensity="1460576.9" PeakScaleHeight="99.767" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
