<?xml version="1.0"?>
<SAORecordList>
<SAORecord
FormatVersion="5.0"
StartTimeUTC="2026-03-14 -073 23:50:00.000"
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 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" >
2026.03.14 (073) 23:50:00</StartTime>
<SolarTerrestrialData>
<GyroFrequency Val="0.63" Model="IGRF 3.0" Altitude="300"/>
<DipAngle Val="-11.17" 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">
FF202607303142350009039031101000005018000000001107501000080502560000000040000
</DigisondePreface>
</SystemInfo>
<CharacteristicList Num="17" >
<URSI ID="00" Val="8.250" Name="foF2" Units="MHz" QL="/" DL="/" />
<URSI ID="03" Val="2.874" Name="M(D)" QL="/" DL="/" />
<URSI ID="07" Val="23.708" Name="MUF(D)" Units="MHz" QL="/" DL="/" />
<URSI ID="42" Val="2.800" Name="fmin" Units="MHz" QL="/" DL="/" />
<URSI ID="80" Val="2.800" Name="fminF" Units="MHz" QL="/" DL="/" />
<URSI ID="51" Val="9.000" Name="fxI" Units="MHz" QL="/" DL="/" />
<URSI ID="16" Val="300.000" Name="h`F" Units="km" QL="/" DL="/" />
<URSI ID="04" Val="300.000" 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="0.800" Name="FF" Units="MHz" QL="/" DL="/" />
<URSI ID="88" Val="7.800" Name="fMUF" Units="MHz" QL="/" DL="/" />
<URSI ID="89" Val="410.000" Name="h`(fMUF)" Units="km" QL="/" DL="/" />
<Modeled Name="foEp" Val="0.354" Units="MHz" ModelName="CCIR-79" />
<URSI ID="61" Val="4.700" Name="f(h`F)" Units="MHz" QL="/" DL="/" />
<URSI ID="60" Val="4.700" Name="f(h`F2)" Units="MHz" QL="/" DL="/" />
<Modeled Name="foF2p" Val="7.591" Units="MHz" ModelName="URSI-88" ModelOptions="NoStorm" />
</CharacteristicList>
<TraceList Num="1">
<Trace Type="standard" Layer="F2" Polarization="O" Num="110">
<FrequencyList Type="float" Units="MHz" Description="Nominal Frequency" >
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 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
</FrequencyList>
<RangeList Type="float" Units="km" Description="Group Range" >
330.000 330.000 331.250 332.500 333.750 335.000 335.000 335.000 350.000 350.000 348.750 347.500 346.250 345.000 340.000 340.000 340.000 345.000 345.000 342.692 340.385 338.077 335.769 333.462 331.154 328.846 326.538 324.231 321.923 319.615 317.308 315.000 315.000 315.000 310.000 307.500 305.000 302.500 300.000 302.647 305.294 307.941 310.588 313.235 315.882 318.529 321.176 323.824 326.471 329.118 331.765 334.412 337.059 339.706 342.353 345.000 352.500 360.000 375.000 390.000 400.000 400.135 400.270 400.405 400.541 400.676 400.811 400.946 401.081 401.216 401.351 401.486 401.622 401.757 401.892 402.027 402.162 402.297 402.432 402.568 402.703 402.838 402.973 403.108 403.243 403.378 403.514 403.649 403.784 403.919 404.054 404.189 404.324 404.459 404.595 404.730 404.865 405.000 410.000 425.000 410.000 427.500 445.000 450.000 450.000 454.781 461.819 473.207 494.781 551.262
</RangeList>
<TraceValueList Name="Amplitude" Type="integer" Units="dB" NoValue="0" Description="Relative Amplitude" >
60 60 0 0 60 60 60 63 57 57 0 0 0 60 63 60 0 60 60 54 0 0 0 0 0 57 0 63 0 0 0 63 63 60 63 0 0 57 54 57 0 0 0 54 0 54 60 57 0 0 0 0 0 60 57 57 0 57 0 54 0 57 0 54 0 54 0 0 0 54 51 0 0 54 0 57 57 51 54 54 0 0 0 0 51 0 0 54 0 0 0 0 54 0 57 0 51 57 57 0 54 57 60 54 51 54 57 54 0 48
</TraceValueList>
<TraceValueList Name="DopplerShift" Type="float" Units="Hz" NoValue="99.0" Description="Doppler Frequency Shift" >
-0.390625 1.171875 -0.390625 -0.390625 1.171875 -0.390625 1.953125 -0.390625 0.390625 1.171875 0.390625 1.171875 1.171875 1.171875 0.390625 0.390625 1.171875 0.390625 1.171875 0.390625 1.171875 1.171875 -0.390625 1.171875 1.953125 1.953125 1.953125 0.390625 1.171875 1.953125 2.734375 0.390625 0.390625 0.390625 0.390625 -0.390625 0.390625 0.390625 0.390625 0.390625 -1.953125 -0.390625 -0.390625 -0.390625 0.390625 0.390625 0.390625 1.171875 1.953125 0.390625 1.953125 1.171875 1.953125 1.953125 -0.390625 -0.390625 1.171875 0.390625 1.953125 1.171875 2.734375 1.171875 2.734375 1.171875 1.171875 1.171875 -1.953125 -0.390625 1.171875 0.390625 1.171875 0.390625 1.171875 1.953125 -1.171875 1.171875 1.171875 1.171875 1.171875 1.171875 1.171875 -0.390625 1.171875 1.171875 0.390625 0.390625 1.953125 1.171875 1.171875 1.171875 1.953125 -2.734375 1.171875 1.953125 1.171875 2.734375 1.171875 1.953125 1.171875 1.953125 1.171875 1.171875 1.171875 0.390625 0.390625 1.171875 1.171875 1.171875 1.171875 1.171875
</TraceValueList>
</Trace>
</TraceList>
</SAORecord>
</SAORecordList>
