AIPS HELP file for VPFLG in 31DEC09
As of Sun Nov 22 16:28:36 2009
VPFLG: Task to insure full flagging whenever 1 cor is flagged
INPUTS
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 #.
BCHAN 0.0 8192.0 Lower channel to check
ECHAN 0.0 8192.0 Uppermost channel to check
DOIFS -1.0 1.0 > 0 => flag all IFs if 1 bad
HELP SECTION
VPFLG
Task: On-line systems flag data on the assumption that the user
wishes to retain as much data as possible. Later AIPS tasks
tend to make this assumption as well. In the on-line case,
only 1 antenna-polarization is flagged, i.e. 2 of the 4
full-polarization correlators. Off-line, when, for example, RR
is found bad, RR, RL, and LR are flagged but not LL. Observers
of circularly polarized sources may find this undesirable.
VPFLG copies the data, flagging all correlators in a time
sample, IF, antenna pair if any one of them is flagged.
Spectral channels BCHAN-ECHAN only are checked since the
outermost may be flagged due to bandpass calibration.
Adverbs:
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.
May be the same file as the input.
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.
BCHAN......Lowest channel to check. 0 -> 1
ECHAN......Highest channel to check. <BCHAN -> max.
DOIFS......> 0 => flag all IFs if one is bad
<= 0 => handle IFs separately
EXPLAIN SECTION