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<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-01-31 -031 04:10:00.000"
URSICode="SMK29"
StationName="Santa Maria"
GeoLatitude="-29.69"
GeoLongitude="307.81"
Source="Ionosonde"
SourceType="DPS-4D"
ScalerType="auto">
<SystemInfo UMLStationID="129">
<FrequencyStepping StartFrequency="2.0" StopFrequency="15.0">
<LinearStepping Step="0.025" Units="MHz" />
</FrequencyStepping>
<RangeStepping StartRange="80.0" StopRange="1360.0" >
<LinearStepping Step="2.5" 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.5002.49: Problems inverting F-trace to N(h)-profile</Comments>
<StartTime Format="yyyy.MM.dd (DDD) HH:mm:ss" TimeZone="Coordinated Universal Time" >
2026.01.31 (031) 04:10:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.15" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.95" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="88.98121" Status="predicted"/>
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<DigisondePreface Format="FF">
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<CharacteristicList Num="17" >
<URSI ID="00" Val="7.500" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.074" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="23.054" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="3.025" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="3.025" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="7.900" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="250.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="250.000" 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="0.125" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="6.850" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="345.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="3.025" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="3.025" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF2p" Val="4.762" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="180">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
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