AIPS HELP file for FLAGVER in 31DEC20
As of Sat Feb 22 15:22:16 2020
Type: Adverb (Scalar)
Use: Standard data selection adverb; used to specify the version
number of the flagging (FG) table to be applied. If FLAGVER <
0, then NO flag table is applied. This adverb is only relevant
when the data being operated on has an associated flag (FG)
A flag table may be applied to single-source or multi-source
data sets and may be applied to data which are not in time
order. If data are in time order, then flagging will work so
long as no more than 6000 flags apply to any one time. If the
data are not in time order, then flagging works only if no more
than 6000 flags apply to the current data. If you exceed these
limits, you may run UVCOP to apply the FG table so long as you
are within limits 10 times larger.
If this adverb is not in the inputs of a particular verb or
task, then that verb or task does NOT apply flagging.
Null value: 0 => different for different tasks.