AIPS HELP file for OFLAG in 31DEC20
As of Tue Jul 7 4:31:31 2020
OFLAG: Task to convert on-line flag info to a flag table
INNAME Image name (name)
INCLASS Image name (class)
INSEQ 0.0 9999.0 Image name (seq. #)
INDISK 0.0 9.0 Disk drive #
INVERS 0.0 46655.0 Extension file version #
FLAGVER -1.0 46655.0 Flag table to copy first
OUTFGVER 0.0 46655.0 Output flag table version
DETIME 0.0 Expand OF time by DETIME sec
DOFLAG -1.0 Flag if score >= DOFLAG
FPARM -1.0 1.0 Flag if bit set?
BADDISK Disks to avoid for scratch
Use: OFLAG interprets the bit pattern column and "warning score"
columns of an on-line flag (OF) table to write a normal AIPS
flag (FG) table. At present this is only implemented for the
FILLM by default acts as if FPARM=0; DOFLAG=3. Note that OFLAG
will count the bits that are set even if FPARM is 0 when
samples are flagged due to DOFLAG or other bits. This count is
reported as "Found" unless it matches a count of "Flagged"
because of each bit.
INNAME.....Image name (name). Standard defaults.
INCLASS....Image name (class). Standard defaults.
INSEQ......Image name (seq. #). 0 => highest.
INDISK.....Disk drive # of image. 0 => any.
INVERS.....Extension file version # 0 => highest.
FLAGVER....As a convenience to the user, a pre-existing flag table
may be copied to OUTFGVER before the OF table is read.
-1 => do not copy, 0 => copy highest pre-existing
version. Note: if OUTFGVER is pre-existing, no table is
OUTFGVER...Desired output FG table. 0 -> highest plus 1.
DETIME.....OF tables have a single time for each record. The FG
table should have a time range for each flag. That will
be TIME - DETIME to TIME + DETIME where DETIME is in
seconds and has a minimum value of 0.02.
DOFLAG.....> 0 => generate flags whenever the score column(s) equal
or exceed DOFLAG
<= 0 => ignore the score column(s)
A warning score of 0 means no warning and is displayed
with blanks by PRTOF. Values of 1 - 3 are intended as
mild warnings, values of 4 - 15 are more severe. In
practise, the VLA appears to issue scores of 0 and 4
FPARM......If FPARM(i) > 0, then generate a flag if bit i of the
bit-pattern column is set (1). For the VLA the pattern
1 reference pointing requested, but not applied
2 antenna shadowed at source change time
3 antenna off source
4 first LO not locked
5 Tsys fluctuating
6 antenna flagged bad by operator
7 back-end total power out of range
8 back-end filters mis-set
9 L8 module not locked
10 L6 module not locked
11 sub-reflector not in position
12 source change in progress
13 phase switching disabled
14 round-trip phase correction disabled
BADDISK....The disk numbers to avoid for scratch files (sorting