<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-13 -286 13:20:00.000"
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="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) 13:20:00</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">
FF202628610131320009039031101000005018000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="26" >
<URSI ID="00" Val="10.900" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.396" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="26.114" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="5.700" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="5.700" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.350" 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="0.150" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="10.300" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="551.963" 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="3.330" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="5.700" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="5.700" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF1p" Val="4.333" Units="MHz" ModelName="IRI-90" />
<URSI ID="92" Val="386.203" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="262.628" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="8.207" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="159.718" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="56.882" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="88.665" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="205.280" 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="105">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
5.7 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 10.55 10.6 10.65 10.7 10.75 10.8 10.85 10.9
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
335.000 335.000 340.000 340.000 350.000 350.000 355.000 355.000 355.000 355.000 355.000 355.000 355.000 352.500 350.000 350.000 350.000 350.000 350.000 350.000 350.000 350.000 350.000 350.000 355.000 355.000 355.000 355.000 358.004 361.008 364.012 367.016 370.020 373.024 376.028 379.032 382.036 385.040 388.044 391.048 394.052 397.056 400.060 403.064 406.068 409.072 412.076 415.080 418.084 421.088 424.092 427.096 430.100 433.104 436.108 439.112 442.116 445.120 448.124 451.128 454.132 457.136 460.140 463.144 466.148 469.152 472.156 475.160 478.164 481.168 484.172 487.176 490.180 493.184 496.189 499.193 502.197 505.201 508.205 511.209 514.213 517.217 520.221 523.225 526.229 529.233 532.237 535.241 538.245 541.249 544.491 548.047 551.963 556.298 561.122 565.000 575.000 580.000 590.000 595.000 605.000 620.000 635.000 655.000 678.136
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
54 60 69 66 63 69 69 69 72 72 72 69 72 69 81 72 75 69 69 72 69 69 66 63 66 69 66 66 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 -1.953125 0.390625 0.390625 2.734375 0.390625 -2.734375 0.390625 -1.171875 2.734375 -1.171875 -1.953125 1.171875 1.953125 1.953125 -2.734375 2.734375 -2.734375 0.390625 -1.171875 -2.734375 1.953125 2.734375 -1.171875 0.390625 -2.734375 1.953125 1.171875 -2.734375 2.734375 1.171875 -2.734375 0.390625 0.390625 -1.953125 -2.734375 -1.953125 -0.390625 -2.734375 -1.953125 -1.953125 -0.390625 -1.953125 -1.171875 -1.953125 1.171875 -2.734375 -0.390625 -1.171875 1.953125 0.390625 -2.734375 1.171875 -1.953125 1.953125 2.734375 -0.390625 -2.734375 2.734375 1.953125 -0.390625 1.953125 0.390625 2.734375 -2.734375 0.390625 -1.953125 -1.953125 1.171875 1.953125 0.390625 0.390625 -1.171875
</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" >
89.492 90.0 95.0 100.0 105.0 110.0 111.797 113.593 115.0 115.39 120.0 125.0 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 386.203 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.24 2.24 2.882 3.222 3.33 3.207 3.207 3.303 3.33 3.496 3.655 3.802 3.943 4.081 4.218 4.354 4.491 4.628 4.767 4.907 5.049 5.192 5.337 5.484 5.632 5.781 5.932 6.084 6.236 6.39 6.544 6.698 6.853 7.008 7.163 7.318 7.472 7.626 7.78 7.934 8.087 8.24 8.393 8.544 8.696 8.847 8.997 9.146 9.295 9.443 9.59 9.736 9.879 10.021 10.159 10.294 10.422 10.543 10.653 10.749 10.825 10.876 10.899 10.9 10.898 10.89 10.875 10.854 10.828 10.795 10.758 10.715 10.668 10.615 10.559 10.498 10.433 10.365 10.293 10.218 10.14 10.058 9.975 9.888 9.8 9.709 9.617 9.522 9.426 9.329 9.23 9.13 9.03 8.928 8.825 8.722 8.618 8.514 8.409 8.305 8.2 8.095 7.99 7.885 7.78 7.676 7.572 7.468 7.365 7.262 7.16 7.059 6.958 6.857 6.758 6.659 6.561 6.464 6.367 6.272 6.177 6.084 5.991 5.899 5.808 5.718 5.63 5.542 5.455 5.369 5.284 5.201 5.118 5.036 4.956 4.876 4.797 4.72 4.643 4.568 4.494 4.42 4.348 4.276 4.206 4.137 4.069 4.001 3.935 3.87 3.805 3.742 3.679 3.618 3.557 3.497 3.439 3.381 3.324 3.268 3.213 3.158 3.105 3.052 3.001 2.95 2.899 2.85 2.802 2.754 2.707 2.661 2.615 2.57 2.526 2.483 2.441 2.399 2.358 2.317 2.277 2.238 2.2 2.162 2.125 2.088 2.052

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="3.33" PeakHeight="110.0" Num="3" Error="0.0">
-30.458 13.087 -3.137
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="3.33" EndFrequency="10.9" PeakHeight="386.203" Num="5" zHalfNm="262.628" Error="4.371">
-232.018 -57.756 22.344 -5.815 2.432
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="5.39" Depth="0.123"/>
<TopsideChapman PeakHeight="386.203" PeakDensity="1474069.5" PeakScaleHeight="88.665" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
