<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-10-30 -303 02:20:00.000"
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="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 2 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" >
2026.10.30 (303) 02:20:00</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">
FF202630310300220009039031101000005014000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="18" >
<URSI ID="00" Val="6.800" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.352" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="22.793" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.700" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.700" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="7.100" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="235.938" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="235.938" 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="0.300" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="6.600" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="332.371" 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="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.700" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.700" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF2p" Val="7.188" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="83">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.7 2.75 2.8 2.85 2.9 2.95 3.0 3.05 3.1 3.15 3.2 3.25 3.3 3.35 3.4 3.45 3.5 3.55 3.6 3.65 3.7 3.75 3.8 3.85 3.9 3.95 4.0 4.05 4.1 4.15 4.2 4.25 4.3 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
235.938 236.875 237.813 238.750 239.688 240.625 241.563 242.500 243.438 244.375 245.313 246.250 247.188 248.125 249.063 250.000 250.000 245.000 250.000 253.571 257.143 260.714 264.286 267.857 271.429 275.000 278.571 282.143 285.714 289.286 292.857 296.429 300.000 307.500 315.000 314.333 313.667 313.000 312.333 311.667 311.000 310.333 309.667 309.000 308.333 307.667 307.000 306.333 305.667 305.000 302.500 302.143 301.786 301.429 301.071 300.714 300.357 300.000 300.000 300.000 300.000 301.563 303.125 304.688 306.250 307.813 309.375 310.938 312.500 314.063 315.625 317.188 318.750 320.313 321.875 323.438 326.123 329.085 332.371 336.036 340.149 344.798 350.095
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
66 0 0 0 57 0 69 63 0 66 0 0 0 0 66 0 0 0 0 57 0 54 0 0 0 0 0 0 0 0 0 63 0 0 57 0 0 0 0 0 0 0 0 0 0 0 0 0 60 0 60 0 60 0 0 0 54 63 0 60 57 0 0 0 0 0 0 0 0 0 0 60 0 0 0 0 60 57 60 0 54 0 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-1.171875 -0.390625 0.390625 0.390625 -1.171875 1.953125 1.171875 -1.171875 1.171875 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 1.953125 1.171875 -0.390625 0.390625 1.171875 1.953125 1.953125 1.171875 1.171875 1.171875 1.171875 1.171875 1.953125 1.171875 1.953125 1.171875 1.953125 1.953125 0.390625 -0.390625 1.953125 1.953125 -1.953125 -1.953125 1.953125 -1.953125 1.953125 1.953125 1.953125 -1.953125 2.734375 1.953125 1.953125 1.953125 2.734375 1.953125 1.953125 -1.171875 -0.390625 0.390625 1.953125 0.390625 0.390625 1.953125 1.171875 1.953125 -2.734375 2.734375 0.390625 1.953125 2.734375 -1.953125 2.734375 2.734375 2.734375 2.734375 2.734375 -2.734375 -2.734375
</TraceValueList>
</Trace>
</TraceList>
</SAORecord>
</SAORecordList>
