AIPS HELP file for TBAVG in 31DEC22
As of Wed Mar 29 17:11:22 2023
TBAVG: Time averages all data on all baselines.
INNAME Input UV file name (name)
INCLASS Input UV file name (class)
INSEQ 0.0 9999.0 Input UV file name (seq. #)
INDISK 0.0 9.0 Input UV file disk unit #
OUTNAME Output UV file name (name)
OUTCLASS Output UV file name (class)
OUTSEQ -1.0 9999.0 Output UV file name (seq. #)
OUTDISK 0.0 9.0 Output UV file disk unit #.
SOLINT Averaging interval (sec)
SHIFT Shift in asec at ref position
Task: This task averages visibility data over a specified averaging
time, combining all baselines. The results are written to an
output file with each visibility labeled as baseline 1-2. This
is useful for measuring time variable point source flux
densities at the phase center of the data. Your data shold be
prepared carefully for this operation. TBAVG applies to
single-source data files and does not apply calibration and
flagging, does not select on source names, IFs, or channels.
If the field you are observing contains multiple objects, the
time-constant objects should be removed using UVSUB before
running TBAVG. Autocorrelation data are omitted.
Task DFTPL makes a plot of the real parts of the visibility
averages rather than writing a UV data set.
INNAME.....Input UV file name (name). Standard defaults.
INCLASS....Input UV file name (class). Standard defaults.
INSEQ......Input UV file name (seq. #). 0 => highest.
INDISK.....Disk drive # of input UV file. 0 => any.
OUTNAME....Output UV file name (name). Standard defaults.
OUTCLASS...Output UV file name (class). Standard defaults.
OUTSEQ.....Output UV file name (seq. #). 0 => highest unique
OUTDISK....Disk drive # of output UV file. 0 => highest with
space for the file.
SOLINT.....The averaging time in seconds. Data on all
baselines will be averaged together for this
SHIFT......Shift in arcseconds. The data are shifted and then
averaged. These are shifts in arc seconds at the
reference point -
RA = RA0 + SHIFT(1)/cos(DEC0), DEC = DEC0 + SHIFT(2)