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FormatVersion="5.0"
StartTimeUTC="2026-03-26 -085 00:05:00.000"
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" >
2026.03.26 (085) 00:05:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.56" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-41.18" Model="IGRF 3.0" Altitude="300"/>
<DeclinationAngle Val="-15.97" Model="IGRF 3.0" Altitude="300"/>
<SunSpotNumber Val="82.25368" Status="predicted"/>
</SolarTerrestrialData>
<DigisondePreface Format="FF">
FF202608503260005001291297002000002515000000001107301000080205120000B05040001
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="20" >
<URSI ID="00" Val="4.900" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="3.153" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="15.448" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.175" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="30" Val="2.675" Name="foEs" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.675" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="5.250" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="225.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="225.000" Name="h`F2" Units="km" QL="/" DL="/" />
<URSI ID="34" Val="100.000" Name="h`Es" 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="0.050" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="4.275" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="305.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="2.675" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="2.675" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF2p" Val="6.509" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
<Custom Name="fminEs" Val="2.175" Description="Minimum frequency of Es-layer" Units="MHz" />
</CharacteristicList>
<TraceList Num="2">
<Trace Type="standard" Layer="F2" Polarization="O" Num="90">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.675 2.7 2.725 2.75 2.775 2.8 2.825 2.85 2.875 2.9 2.925 2.95 2.975 3.0 3.025 3.05 3.075 3.1 3.125 3.15 3.175 3.2 3.225 3.25 3.275 3.3 3.325 3.35 3.375 3.4 3.425 3.45 3.475 3.5 3.525 3.55 3.575 3.6 3.625 3.65 3.675 3.7 3.725 3.75 3.775 3.8 3.825 3.85 3.875 3.9 3.925 3.95 3.975 4.0 4.025 4.05 4.075 4.1 4.125 4.15 4.175 4.2 4.225 4.25 4.275 4.3 4.325 4.35 4.375 4.4 4.425 4.45 4.475 4.5 4.525 4.55 4.575 4.6 4.625 4.65 4.675 4.7 4.725 4.75 4.775 4.8 4.825 4.85 4.875 4.9
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
225.000 225.000 225.000 227.500 227.500 227.500 227.500 227.500 230.000 230.625 231.250 231.875 232.500 232.500 232.500 232.500 235.000 235.000 236.250 237.500 237.500 237.500 240.000 240.000 242.500 242.500 242.500 242.500 247.500 247.500 247.500 250.000 250.000 250.000 252.500 253.750 255.000 255.000 260.000 257.500 260.000 260.000 260.000 262.500 265.000 267.500 270.000 272.500 275.000 272.500 273.333 274.167 275.000 277.500 280.000 282.500 282.500 287.500 290.000 292.500 297.500 300.000 302.500 302.500 305.000 310.000 312.500 317.500 320.000 327.500 330.000 333.750 337.500 340.000 347.500 355.000 357.500 362.500 367.755 373.520 379.873 386.909 394.744 403.523 413.427 424.687 437.602 452.566 470.108 490.959
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<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
75 75 72 69 51 60 48 48 42 0 0 0 69 66 78 78 87 93 0 96 99 96 96 99 96 99 96 90 102 99 96 87 87 84 81 75 78 84 69 81 63 0 57 0 0 0 0 0 81 93 0 0 81 93 90 93 81 93 93 87 90 93 93 96 93 90 87 87 78 72 54 0 69 72 84 81 69 69 90 90 81 78 0 0 0 0 0 0 0 0
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</TraceValueList>
</Trace>
<Trace Type="standard" Layer="Es" Polarization="O" Num="21">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
2.175 2.2 2.225 2.25 2.275 2.3 2.325 2.35 2.375 2.4 2.425 2.45 2.475 2.5 2.525 2.55 2.575 2.6 2.625 2.65 2.675
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
100.000 102.500 105.000 105.833 106.667 107.500 102.500 100.000 100.000 102.500 102.500 102.500 102.500 102.500 102.500 102.500 105.000 105.000 105.000 105.000 105.000
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
69 0 54 0 0 51 57 60 72 63 63 63 63 0 0 66 0 69 0 0 0
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
1.5625 -1.5625 1.5625 -1.5625 4.6875 1.5625 -1.5625 -1.5625 -1.5625 -1.5625 1.5625 1.5625 1.5625 -1.5625 -1.5625 -1.5625 1.5625 -1.5625 -1.5625 1.5625 1.5625
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</Trace>
</TraceList>
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