<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-13 -286 15:00:00.000"
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="18.0">
<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: 50% PACIFIC flags: F2o cusp not found, 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" >
2026.10.13 (286) 15:00:00</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">
FF202628610131500009039031101000005018000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="24" >
<URSI ID="00" Val="10.500" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.399" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="25.188" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="5.750" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="5.750" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="10.800" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="310.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="310.000" 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="88" Val="10.050" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="562.243" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="3.401" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="5.750" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="5.750" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.365" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="384.941" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="250.318" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.842" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="173.505" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="56.674" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="96.091" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="216.850" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.390" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="96">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
5.75 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
310.000 312.500 315.000 315.000 320.000 320.000 320.000 325.000 325.000 325.000 330.000 330.000 330.000 335.000 335.000 340.000 340.000 340.000 345.000 345.000 350.000 350.000 350.000 355.000 355.000 360.000 360.000 365.000 368.343 371.686 375.029 378.372 381.715 385.059 388.402 391.745 395.088 398.431 401.774 405.117 408.460 411.803 415.146 418.490 421.833 425.176 428.519 431.862 435.205 438.548 441.891 445.234 448.577 451.921 455.264 458.607 461.950 465.293 468.636 471.979 475.322 478.665 482.008 485.352 488.695 492.038 495.381 498.724 502.067 505.410 508.753 512.096 515.439 518.783 522.126 525.469 528.812 532.155 535.498 538.841 542.184 545.527 548.870 552.214 555.557 558.900 562.243 570.000 585.000 595.000 610.000 625.000 640.000 660.000 680.000 706.040
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
60 0 57 63 54 57 60 60 63 60 60 60 63 66 66 60 63 66 63 63 60 66 66 66 66 60 66 54 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 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 -2.734375 1.171875 -1.953125 -2.734375 1.171875 -0.390625 -2.734375 -0.390625 0.390625 -2.734375 -2.734375 -1.953125 0.390625 1.171875 0.390625 -2.734375 -1.953125 -0.390625 0.390625 -0.390625 -2.734375 1.953125 1.171875 0.390625 -1.171875 1.953125 2.734375 2.734375 1.171875 -0.390625 1.171875 1.171875 0.390625 -1.171875 -0.390625 -0.390625 -2.734375 1.171875 1.171875 2.734375 2.734375 -2.734375 1.171875 2.734375 1.953125 1.171875 1.171875 -0.390625 -2.734375 1.171875 0.390625 -0.390625 -1.953125 2.734375 1.171875 -0.390625 1.171875 2.734375 -1.171875 -2.734375 -0.390625 0.390625 -2.734375 -1.171875 -2.734375 2.734375
</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" >
89.481 90.0 95.0 100.0 105.0 110.0 111.507 113.015 114.522 115.0 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 384.941 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.241 2.288 2.943 3.29 3.401 3.278 3.278 3.401 3.417 3.578 3.728 3.873 4.016 4.157 4.299 4.441 4.584 4.729 4.875 5.022 5.171 5.321 5.472 5.623 5.775 5.927 6.079 6.23 6.382 6.532 6.682 6.831 6.978 7.125 7.271 7.415 7.559 7.701 7.842 7.982 8.121 8.259 8.396 8.532 8.667 8.8 8.933 9.064 9.194 9.323 9.45 9.575 9.697 9.817 9.933 10.043 10.148 10.244 10.329 10.4 10.455 10.489 10.5 10.5 10.497 10.489 10.476 10.457 10.434 10.406 10.374 10.338 10.297 10.253 10.204 10.153 10.098 10.039 9.978 9.914 9.847 9.778 9.707 9.633 9.557 9.479 9.399 9.318 9.235 9.151 9.065 8.978 8.891 8.802 8.712 8.622 8.531 8.439 8.347 8.255 8.162 8.069 7.976 7.883 7.789 7.696 7.603 7.51 7.417 7.324 7.232 7.14 7.049 6.958 6.867 6.777 6.687 6.598 6.51 6.422 6.335 6.248 6.162 6.077 5.993 5.909 5.826 5.744 5.663 5.582 5.502 5.423 5.345 5.268 5.191 5.116 5.041 4.967 4.894 4.822 4.751 4.68 4.61 4.542 4.474 4.407 4.34 4.275 4.21 4.147 4.084 4.022 3.96 3.9 3.84 3.781 3.723 3.666 3.61 3.554 3.499 3.445 3.392 3.339 3.288 3.236 3.186 3.136 3.088 3.039 2.992 2.945 2.899 2.853 2.809 2.765 2.721 2.678 2.636 2.595 2.554 2.513 2.474 2.435 2.396 2.358 2.321

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.401" PeakHeight="110.0" Num="3" Error="0.0">
-30.508 13.162 -3.173
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.401" EndFrequency="10.5" PeakHeight="384.941" Num="5" zHalfNm="250.318" Error="3.116">
-239.076 -48.787 22.435 -7.236 2.245
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="4.522" Depth="0.123"/>
<TopsideChapman PeakHeight="384.941" PeakDensity="1367866.0" PeakScaleHeight="96.091" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
