<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-22 -295 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="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 8 0 0 0 0 0 0 0 55 0 0 0 0 0 0 0 0 1 0 "/>
<Comments>AR.5002.44: Problems inverting F-trace to N(h)-profile</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" >
2026.10.22 (295) 20:40:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.63" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-11.40" 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">
FF202629510222040009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="16" >
<URSI ID="00" Val="11.200" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.954" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="33.080" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="4.350" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="4.350" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="11.450" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="110.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="110.000" 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="11.200" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="430.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="1.227" 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="foF2p" Val="10.316" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="138">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
4.35 4.4 4.45 4.5 4.55 4.6 4.65 4.7 4.75 4.8 4.85 4.9 4.95 5.0 5.05 5.1 5.15 5.2 5.25 5.3 5.35 5.4 5.45 5.5 5.55 5.6 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 10.9 10.95 11.0 11.05 11.1 11.15 11.2
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
140.000 140.000 140.000 140.000 135.000 135.000 133.913 132.826 131.739 130.652 129.565 128.478 127.391 126.304 125.217 124.130 123.043 121.957 120.870 119.783 118.696 117.609 116.522 115.435 114.348 113.261 112.174 111.087 110.000 110.000 111.667 113.333 115.000 137.778 160.556 183.333 206.111 228.889 251.667 274.444 297.222 320.000 321.667 323.333 325.000 326.667 328.333 330.000 335.000 335.000 337.500 340.000 340.000 340.000 340.000 340.000 345.000 345.000 346.000 347.000 348.000 349.000 350.000 350.000 355.000 355.000 355.000 360.000 360.000 360.000 360.000 360.000 360.000 365.000 365.000 365.000 365.000 370.000 370.000 370.000 371.034 372.069 373.103 374.138 375.172 376.207 377.241 378.276 379.310 380.345 381.379 382.414 383.448 384.483 385.517 386.552 387.586 388.621 389.655 390.690 391.724 392.759 393.793 394.828 395.862 396.897 397.931 398.966 400.000 401.034 402.069 403.103 404.138 405.172 406.207 407.241 408.276 409.310 410.345 411.379 412.414 413.448 414.483 415.517 416.552 417.586 418.621 419.655 420.690 421.724 422.759 423.793 424.828 425.862 426.897 427.931 428.966 430.000
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
63 60 0 60 60 60 0 0 0 57 0 0 0 57 0 0 0 0 0 0 0 0 0 0 0 0 0 0 60 0 0 0 66 0 0 0 0 0 0 0 0 72 0 0 63 0 0 72 69 66 0 57 60 0 69 69 69 69 0 0 0 0 75 75 72 72 69 66 69 69 69 72 69 72 78 81 81 78 78 78 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 45 0 0 0 0 0 0 0 0 0 0 0 0 57
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
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</TraceValueList>
</Trace>
</TraceList>
</SAORecord>
</SAORecordList>
