<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-11-01 -305 19:30:00.000"
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="14.0">
<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 11 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.44 Confidence: 90% PACIFIC flags: One of F2 cusps was derived from the other</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" >
2026.11.01 (305) 19:30:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.63" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-11.41" 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">
FF202630511011930009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="25" >
<URSI ID="00" Val="11.650" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.501" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="29.134" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="8.600" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="8.600" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.950" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="400.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="400.000" 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="10.550" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="480.000" 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="2.308" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="8.600" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="8.600" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<URSI ID="92" Val="382.298" Name="hmF2" Units="km" QL="/" DL="/" />
<URSI ID="93" Val="270.379" Name="zhalfNm" Units="km" QL="/" DL="/" />
<Modeled Name="foF2p" Val="9.749" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<URSI ID="94" Val="154.963" Name="yF2" Units="km" QL="/" DL="/" />
<URSI ID="71" Val="58.966" Name="TEC" Units="TECU" QL="/" DL="/" />
<URSI ID="09" Val="81.654" Name="scale F2" Units="km" QL="/" DL="/" />
<URSI ID="D0" Val="168.500" Name="B0" Units="km" QL="/" DL="/" />
<URSI ID="D1" Val="1.700" Name="B1" QL="/" DL="/" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="62">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 11.35 11.4 11.45 11.5 11.55 11.6 11.65
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
400.000 400.000 405.000 405.000 405.000 407.500 410.000 410.000 415.000 415.000 415.000 420.000 420.000 422.500 425.000 425.000 425.000 430.000 435.000 436.250 437.500 438.750 440.000 445.000 447.500 450.000 445.000 455.000 460.000 450.000 455.000 455.000 460.000 460.000 470.000 475.000 475.000 480.000 480.000 480.000 490.000 490.000 495.000 495.000 505.000 510.000 510.000 515.000 520.000 530.000 535.000 541.264 548.162 555.794 564.286 573.790 584.499 596.658 610.582 626.687 645.528 667.866
</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 54 0 69 0 72 69 60 45 57 0 69 63 0 63 66 63 54 0 0 0 63 0 60 60 60 57 63 60 54 60 60 60 60 60 60 60 57 57 57 54 57 54 54 54 54 54 51 57 48 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 -0.390625 -0.390625 -0.390625 -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 1.953125
</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" >
89.682 90.0 95.0 100.0 105.0 110.0 115.0 116.558 120.0 123.117 125.0 129.675 130.0 135.0 140.0 145.0 150.0 155.0 160.0 165.0 170.0 175.0 180.0 185.0 190.0 195.0 200.0 205.0 210.0 215.0 220.0 225.0 230.0 235.0 240.0 245.0 250.0 255.0 260.0 265.0 270.0 275.0 280.0 285.0 290.0 295.0 300.0 305.0 310.0 315.0 320.0 325.0 330.0 335.0 340.0 345.0 350.0 355.0 360.0 365.0 370.0 375.0 380.0 382.298 385.0 390.0 395.0 400.0 405.0 410.0 415.0 420.0 425.0 430.0 435.0 440.0 445.0 450.0 455.0 460.0 465.0 470.0 475.0 480.0 485.0 490.0 495.0 500.0 505.0 510.0 515.0 520.0 525.0 530.0 535.0 540.0 545.0 550.0 555.0 560.0 565.0 570.0 575.0 580.0 585.0 590.0 595.0 600.0 605.0 610.0 615.0 620.0 625.0 630.0 635.0 640.0 645.0 650.0 655.0 660.0 665.0 670.0 675.0 680.0 685.0 690.0 695.0 700.0 705.0 710.0 715.0 720.0 725.0 730.0 735.0 740.0 745.0 750.0 755.0 760.0 765.0 770.0 775.0 780.0 785.0 790.0 795.0 800.0 805.0 810.0 815.0 820.0 825.0 830.0 835.0 840.0 845.0 850.0 855.0 860.0 865.0 870.0 875.0 880.0 885.0 890.0 895.0 900.0 905.0 910.0 915.0 920.0 925.0 930.0 935.0 940.0 945.0 950.0 955.0 960.0 965.0 970.0 975.0 980.0 985.0 990.0 995.0 1000.0
</AltitudeList>
<ProfileValueList Name="PlasmaFrequency" Type="float" Units="MHz" Description="Plasma frequency" >
0.2 0.227 1.549 1.998 2.233 2.308 2.235 2.181 2.181 2.181 2.217 2.308 2.318 2.473 2.63 2.79 2.956 3.129 3.31 3.498 3.696 3.901 4.114 4.334 4.56 4.79 5.023 5.259 5.495 5.732 5.968 6.203 6.436 6.667 6.896 7.123 7.347 7.57 7.789 8.007 8.222 8.434 8.644 8.852 9.057 9.259 9.459 9.655 9.848 10.037 10.222 10.401 10.575 10.741 10.9 11.048 11.185 11.309 11.417 11.507 11.576 11.624 11.647 11.65 11.649 11.64 11.623 11.599 11.567 11.528 11.483 11.431 11.373 11.31 11.241 11.167 11.089 11.006 10.918 10.827 10.733 10.635 10.534 10.43 10.324 10.215 10.104 9.992 9.877 9.761 9.644 9.526 9.407 9.287 9.166 9.045 8.924 8.802 8.68 8.558 8.437 8.315 8.194 8.073 7.953 7.834 7.715 7.596 7.479 7.362 7.246 7.132 7.018 6.905 6.793 6.683 6.573 6.465 6.357 6.252 6.147 6.043 5.941 5.84 5.74 5.642 5.545 5.449 5.355 5.262 5.17 5.079 4.99 4.902 4.816 4.73 4.646 4.564 4.482 4.402 4.323 4.245 4.169 4.094 4.02 3.947 3.875 3.805 3.736 3.667 3.601 3.535 3.47 3.406 3.344 3.282 3.222 3.163 3.104 3.047 2.991 2.935 2.881 2.828 2.775 2.724 2.673 2.623 2.575 2.527 2.48 2.433 2.388 2.343 2.3 2.257 2.215 2.173 2.132 2.093 2.053 2.015 1.977 1.94 1.904 1.868 1.833 1.798

</ProfileValueList>
</Tabulated>
<ShiftedChebyshevList Num="2" >
<ShiftedChebyshev Region="E" StartFrequency="0.2" EndFrequency="2.308" PeakHeight="110.0" Num="3" Error="0.0">
-29.49 11.696 -2.524
</ShiftedChebyshev>
<ShiftedChebyshev Region="F2" StartFrequency="2.308" EndFrequency="11.65" PeakHeight="382.298" Num="5" zHalfNm="270.379" Error="2.381">
-240.465 -21.36 14.5 -7.322 2.024
</ShiftedChebyshev>
</ShiftedChebyshevList>
<ProfileValley Model="ULCAR" Width="19.675" Depth="0.127"/>
<TopsideChapman PeakHeight="382.298" PeakDensity="1683902.0" PeakScaleHeight="81.654" />
</Profile>
</ProfileList>
</SAORecord>
</SAORecordList>
