<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-19 -292 15:20:00.000"
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 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" >
2026.10.19 (292) 15:20:00</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">
FF202629210191520009039031101000005015000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="11.300" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.491" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="28.149" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="5.950" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="5.950" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.700" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="330.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="330.000" 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="10.650" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="517.059" 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="3.383" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="5.950" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="5.950" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.357" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="372.158" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="258.205" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.997" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="148.551" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="57.291" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="83.030" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="192.130" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.290" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="108">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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" >
330.000 330.000 330.000 332.500 335.000 335.000 335.000 335.000 335.000 335.000 335.000 340.000 340.000 340.000 340.000 345.000 345.000 345.000 345.000 345.000 345.000 345.000 346.667 348.333 350.000 350.000 352.384 354.768 357.152 359.536 361.920 364.304 366.688 369.072 371.456 373.840 376.224 378.608 380.992 383.375 385.759 388.143 390.527 392.911 395.295 397.679 400.063 402.447 404.831 407.215 409.599 411.983 414.367 416.751 419.135 421.519 423.903 426.287 428.671 431.055 433.439 435.823 438.207 440.591 442.975 445.359 447.743 450.126 452.510 454.894 457.278 459.662 462.046 464.430 466.814 469.198 471.582 473.966 476.350 478.734 481.118 483.502 485.886 488.270 490.654 493.038 495.422 497.806 500.190 502.574 504.958 507.342 510.284 513.509 517.059 520.984 525.349 530.232 535.000 540.000 550.000 555.000 565.000 580.000 590.000 610.000 630.000 657.302
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 66 63 0 66 69 66 66 63 57 57 66 66 69 69 69 72 75 72 69 69 69 0 0 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 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 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 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 -0.390625 2.734375 -1.171875 1.171875 -1.171875 1.953125 2.734375 -1.171875 1.953125 -1.171875 1.171875 1.171875 1.171875 -0.390625 -2.734375 1.171875 -2.734375 1.953125 -2.734375 1.953125 -2.734375 1.953125 1.953125 2.734375 -0.390625 -1.953125 1.953125 -1.171875 1.171875 -2.734375 -1.171875 0.390625 1.953125 -1.171875 0.390625 -2.734375 -2.734375 -2.734375 -2.734375 1.953125 0.390625 0.390625 0.390625 2.734375 1.171875 1.953125 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" >
89.484 90.0 95.0 100.0 105.0 110.0 111.578 113.156 114.734 115.0 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 372.158 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.241 2.276 2.928 3.273 3.383 3.26 3.26 3.383 3.394 3.583 3.755 3.919 4.077 4.233 4.386 4.537 4.689 4.84 4.991 5.143 5.296 5.449 5.604 5.759 5.916 6.073 6.232 6.392 6.553 6.715 6.878 7.043 7.208 7.375 7.543 7.711 7.881 8.052 8.223 8.395 8.568 8.742 8.916 9.09 9.264 9.439 9.613 9.785 9.957 10.126 10.293 10.454 10.61 10.758 10.896 11.02 11.126 11.21 11.268 11.297 11.3 11.299 11.29 11.274 11.251 11.221 11.185 11.142 11.093 11.038 10.979 10.914 10.844 10.77 10.691 10.609 10.523 10.433 10.341 10.245 10.147 10.046 9.943 9.838 9.731 9.623 9.513 9.402 9.289 9.176 9.062 8.947 8.832 8.716 8.6 8.484 8.368 8.251 8.135 8.02 7.904 7.789 7.675 7.561 7.448 7.335 7.223 7.112 7.002 6.893 6.784 6.677 6.57 6.465 6.361 6.258 6.155 6.054 5.955 5.856 5.759 5.662 5.567 5.473 5.381 5.289 5.199 5.11 5.023 4.936 4.851 4.767 4.684 4.603 4.522 4.443 4.365 4.288 4.213 4.138 4.065 3.993 3.922 3.852 3.783 3.716 3.649 3.584 3.52 3.456 3.394 3.333 3.273 3.214 3.156 3.099 3.042 2.987 2.933 2.88 2.827 2.776 2.725 2.675 2.627 2.579 2.531 2.485 2.44 2.395 2.351 2.308 2.265 2.224 2.183 2.143 2.103 2.065 2.027 1.989 1.953 1.917 1.881 1.846 1.812 1.779 1.746

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.383" PeakHeight="110.0" Num="3" Error="0.0">
-30.495 13.143 -3.164
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.383" EndFrequency="11.3" PeakHeight="372.158" Num="5" zHalfNm="258.205" Error="2.81">
-221.272 -53.033 18.175 -2.162 0.868
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="4.734" Depth="0.123"/>
<TopsideChapman PeakHeight="372.158" PeakDensity="1584243.1" PeakScaleHeight="83.03" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
