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Basic Information on smacheck
Task: smacheck
Purpose: Check and analyse uvVariables and flag uv-data.
Categories: data check, analysis and flagging
SmaCheck is a Miriad program to check, analyse uv variables
for SMA data and flag uv-data if variables or data are
out of range.
Key: vis
The input visibility file. No default.
Key: select
This selects which visibilities to be used. Default is
all visibilities. See the Users Guide for information about
how to specify uv-data selection.
Key: flagval
set to either 'flag' or 'unflag' to flag the data.
Default: don not change the flags.
Key: var
Name of uv-variable to check. Default is systemp.
Print mean and rms values of variable WITHIN the selected range.
A histogram plot can be printed (options=histo).
Key: range
Minimum and maximum values for uv-variable.
Flag the uv-data when the uv-variable is OUTSIDE this range.
Default range=-1E20,1E20. Note that in order to flag
data within a selected range, first flag everything, then
unflag those outside the selected range.
Key: options
Extra processing options. Possible values are:
debug Print more output
histo Print histogram
circular for circular polarization data (RR,LL,RL,LR),
flag out the non-circular polarization data if
flagval is flag or default; or unflag the non-circular
polarization data if flagval is unflag.
visflag flag visibility-based (channel-based) data based on
the range selected in visrnge. Default is no
flagging imposing on visibility-based data.
Key: visrnge
2 values for a range between (+/-maximum and +/-minimum) values
of visibility components,
visrnge(1) = minimum,
visrnge(2) = maximum;
if visrnge(2) <= visrnge(1), it takes default. The default is
(3.4E+38 to 2.8E-45) for positive,
(2.8E-45 to -3.4E+38) for negative in a real part
and an imaginary part of a visibility.
Key: log
The output logfile name. The default is the terminal