<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-14 -287 20:40:00.000"
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) 20:40:00</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">
FF202628710142040009039031101000005015000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="10.850" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.320" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="25.170" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="5.650" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="5.650" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.250" 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="0.100" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="10.100" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="567.194" 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="1.248" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="5.650" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="5.650" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="438.549" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="327.800" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="10.315" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="158.460" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="50.929" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="81.352" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="165.260" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.780" 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" >
5.65 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
335.000 335.000 336.818 338.636 340.455 342.273 344.091 345.909 347.727 349.545 351.364 353.182 355.000 355.000 360.000 362.500 365.000 367.500 370.000 370.000 372.500 375.000 370.000 372.500 375.000 377.500 380.000 382.971 385.943 388.914 391.885 394.857 397.828 400.799 403.771 406.742 409.713 412.685 415.656 418.627 421.599 424.570 427.541 430.513 433.484 436.455 439.427 442.398 445.369 448.340 451.312 454.283 457.254 460.226 463.197 466.168 469.140 472.111 475.082 478.054 481.025 483.996 486.968 489.939 492.910 495.882 498.853 501.824 504.796 507.767 510.738 513.710 516.681 519.652 522.624 525.595 528.566 531.538 534.509 537.480 540.452 543.423 546.394 549.366 552.337 555.308 558.280 561.251 564.222 567.194 571.193 575.561 580.350 585.000 590.000 600.000 605.000 615.000 625.000 635.000 645.000 660.000 675.000 700.000 723.333
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 0 0 0 0 0 0 0 0 0 0 0 75 0 81 0 0 0 78 81 0 75 0 0 0 0 0 75 0 0 0 0 0 0 0 0 0 0 0 0 51 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" >
-1.171875 -0.390625 -0.390625 -1.171875 -0.390625 -0.390625 -1.171875 -1.171875 -1.171875 -1.171875 -0.390625 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 -1.171875 1.953125 0.390625 -0.390625 -1.171875 -0.390625 1.953125 -1.171875 -1.171875 -1.171875 -1.953125 -2.734375 -1.171875 -1.171875 1.171875 -2.734375 1.953125 1.171875 -1.953125 1.171875 -2.734375 -2.734375 2.734375 -0.390625 2.734375 1.953125 1.953125 2.734375 2.734375 -1.171875 0.390625 -1.171875 0.390625 1.171875 1.953125 1.171875 0.390625 -1.953125 -0.390625 1.171875 0.390625 -1.171875 -0.390625 2.734375 -1.953125 1.953125 2.734375 2.734375 2.734375 2.734375 1.171875 1.171875 1.953125 1.171875 -2.734375 -2.734375 -0.390625 0.390625 1.171875 1.171875 0.390625 0.390625 1.171875 0.390625 -0.390625 -0.390625 -0.390625 -1.953125 -2.734375 1.953125 -0.390625 -2.734375 -1.953125 -2.734375
</TraceValueList>
</Trace>
</TraceList>
<ProfileList Num="1">
<Profile  Algorithm="NH" AlgorithmVersion="4.33" Type="vertical" >
<Tabulated Num="187">
<AltitudeList Type="float" Units="km" Description="Altitude above station level" >
90.068 95.0 100.0 105.0 110.0 115.0 120.0 123.384 125.0 130.0 135.0 136.768 140.0 145.0 150.0 150.152 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 438.549 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.833 1.081 1.208 1.248 1.226 1.159 1.085 1.085 1.085 1.085 1.085 1.124 1.185 1.246 1.248 1.357 1.465 1.574 1.685 1.801 1.922 2.049 2.184 2.326 2.477 2.637 2.805 2.982 3.166 3.358 3.556 3.76 3.967 4.178 4.391 4.605 4.82 5.036 5.251 5.466 5.68 5.893 6.106 6.317 6.527 6.736 6.944 7.15 7.355 7.559 7.761 7.961 8.16 8.356 8.551 8.743 8.932 9.118 9.3 9.478 9.65 9.817 9.976 10.127 10.268 10.398 10.515 10.618 10.703 10.771 10.818 10.844 10.85 10.85 10.843 10.83 10.809 10.78 10.746 10.705 10.658 10.605 10.547 10.483 10.415 10.343 10.266 10.185 10.101 10.013 9.922 9.828 9.731 9.632 9.531 9.428 9.323 9.216 9.108 8.999 8.888 8.777 8.665 8.552 8.439 8.326 8.212 8.098 7.984 7.87 7.757 7.644 7.531 7.418 7.306 7.195 7.085 6.975 6.866 6.757 6.65 6.543 6.438 6.333 6.23 6.127 6.026 5.926 5.827 5.729 5.632 5.536 5.442 5.349 5.257 5.166 5.076 4.988 4.901 4.815 4.731 4.647 4.565 4.484 4.404 4.326 4.248 4.172 4.097 4.024 3.951 3.88 3.809 3.74 3.672 3.605 3.54 3.475 3.411 3.349 3.287 3.227 3.168 3.109 3.052 2.996 2.94 2.886 2.832 2.78 2.728 2.677 2.628 2.579 2.531 2.484 2.437 2.392 2.347 2.303 2.26 2.218 2.176 2.135 2.095 2.056

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="1.248" PeakHeight="110.0" Num="3" Error="0.0">
-27.441 9.053 -1.544
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="1.248" EndFrequency="10.85" PeakHeight="438.549" Num="5" zHalfNm="327.8" Error="5.061">
-278.516 -19.614 15.399 -8.964 3.298
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="40.152" Depth="0.163"/>
<TopsideChapman PeakHeight="438.549" PeakDensity="1460576.9" PeakScaleHeight="81.352" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
