<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-02-17 -048 06:40:00.000"
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="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 0 0 0 0 0 0 0 0 22 0 0 0 0 0 0 0 0 0 0 "/>
<Comments>AR.5002.44 Confidence: 75% PACIFIC flags: Baseline built without F2 center</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" >
2026.02.17 (048) 06:40:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.63" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-11.14" 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">
FF202604802170640009039031101000005018000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="6" >
<URSI ID="42" Val="1.950" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="30" Val="8.400" Name="foEs" Units="MHz" QL="/" DL="/" />
<URSI ID="34" Val="105.000" Name="h`Es" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<Modeled Name="foF2p" Val="2.348" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<Custom Name="fminEs" Val="1.950" Description="Minimum frequency of Es-layer" Units="MHz" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="Es" Polarization="O" Num="130">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
105.000 105.000 105.000 105.000 105.000 105.000 110.000 110.000 110.000 110.000 110.000 110.000 110.000 110.000 110.000 110.000 110.000 110.000 110.000 110.833 111.667 112.500 113.333 114.167 115.000 114.167 113.333 112.500 111.667 110.833 110.000 110.000 110.000 110.000 110.000 110.000 112.500 115.000 117.500 120.000 110.000 110.000 110.000 110.000 115.000 115.000 115.135 115.270 115.405 115.541 115.676 115.811 115.946 116.081 116.216 116.351 116.486 116.622 116.757 116.892 117.027 117.162 117.297 117.432 117.568 117.703 117.838 117.973 118.108 118.243 118.378 118.514 118.649 118.784 118.919 119.054 119.189 119.324 119.459 119.595 119.730 119.865 120.000 120.000 115.000 113.750 112.500 111.250 110.000 111.250 112.500 113.750 115.000 116.250 117.500 118.750 120.000 120.000 120.000 120.000 115.000 114.000 113.000 112.000 111.000 110.000 110.000 110.000 110.833 111.667 112.500 113.333 114.167 115.000 115.000 115.000 115.000 115.000 115.000 115.000 115.000 115.000 115.000 115.000 114.167 113.333 112.500 111.667 110.833 110.000
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
0 63 0 66 0 0 75 69 0 78 81 87 84 78 0 0 75 78 81 0 0 75 0 0 0 0 0 0 84 0 81 75 81 0 84 78 0 0 0 0 75 0 0 72 78 75 0 0 0 0 69 0 0 0 0 0 0 0 63 66 0 0 0 0 0 54 60 0 0 0 0 0 57 0 0 0 0 0 0 0 0 0 57 54 57 0 51 0 48 0 0 0 0 0 0 0 45 48 0 51 48 0 48 0 45 48 48 45 0 0 0 0 0 51 48 51 0 51 48 51 0 0 51 48 0 0 45 0 0 45
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
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</TraceValueList>
</Trace>
</TraceList>
</SAORecord>
</SAORecordList>
