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Basic Information on bootflux
Task: bootflux
Purpose: Determine secondary source fluxes from visibilities.
Categories: uv-analysis
BootFlux is a MIRIAD task which can be used to determine the fluxes
of secondary standards from primary standards. Both vector and scalar
averages are formed. It also prints out the rms scatter around the
vector mean, and the RMS variation in the amplitude.
For primary fluxes from the source catalog a search of 40 GHz
and 100 days around the observing day/frequency is used and interpolated
for the assumed flux. This is output and using programs such as
calflux more intelligent determinations of their flux could be
attempted.
Key: vis
The name of the input visibility datasets. You MUST include the datasets
for the sources that you want to derive fluxes for as well as the
dataset for the primary calibrator. Several files can be given,
wildcarding is supported. No default.
Key: select
Standard uv selection. The default is all data.
Key: line
Standard line-type specification. When there are multiple channels
selected, uvflux averages them all together. At this time, the program
can ONLY handle ONE CHANNEL at a time so you should specify
line=wide,1,1,1,1 or line=wide,1,2,1,1
Key: stokes
Normal Stokes processing. You can select several Stokes or
polarisation parameters, which will be be averaged independently.
Key: taver
Averaging time in minutes. Data will be vector averaged until
this amount of integration time has been accumulated or this amount
of wall-clock time has elapsed, which ever comes first.
Default: 5 minute averaging.
Key: primary
Source name of primary flux standard, flux (or Tb for planets) of source
(optional). The source name MUST be the source name in the dataset,
NOT the name of the dataset.
Default: Source name MUST be specified, flux or Tb is optional.
Key: badres
Used to drop baselines on which planet flux is resolved out. Input value
represents the minimum percentage planet visibility in baselines to be
included in the calibration calculation.
Default = 30.
Key: record
Logical to indicate if results should be saved to archive flux files
and name of archive directory (if different from default)
default: false -- do not archive measured fluxes
default directory: ./measured_fluxes
Key: options
Extra processing options. Several can be given, separated by
commas. Minimum match is used. Possible values are:
nocal Do not apply any antenna gain calibration corrections.
By default these are applied if they exist.
nopol Do not apply polarisation leakage corrections. By default
these are applied if they exist.
nopass Do not apply bandpass corrections. By default these
are applied if they exist.
Key: log
Log file name for output.
Default: No Log file.