[daip] [HelpDesk #19455] AIPS flagging issue - no FG file

George Martin gmartin at nrao.edu
Fri Jun 23 10:32:59 EDT 2006


> From helpdesk at aoc.nrao.edu  Thu Jun 22 22:23:36 2006
> 
> >From: Adam Ginsburg <keflavich at gmail.com>
> >To: Support Online <helpdesk at aoc.nrao.edu>
> >Subject: AIPS flagging issue - no FG file
>

Hi,

Questions concerning data reduction in AIPS should normally be sent
to daip at nrao.edu. You might also ask you advisor. I'm forwarding this
to daip at nrao.edu.

Please also check http://www.aoc.nrao.edu/aips

  George

> When I run TVFLG or CLIP, no FG file is added to the header, though the 
> flagging is saved in the history file.  I checked both by outputting the 
> history file to text and looking at it, and by re-running TVFLG.  When I 
> run TVFLG after having 'successfully' flagged some data, the flagged 
> data does not appear, but when I run UVPLT or IMAGR, the bad data is 
> still there.  I tested UVPLT with FLAGVER set to 0, 1, and 2 with no 
> success.
> 
> Below is an example run of my CLIP flagging, then a print of IMH after 
> the CLIP run.  I also pasted some of the lines of TVFLG from my HIST file.
> 
> SUM-GI> CLIP 2: Task CLIP   (release of 31DEC06) begins
> SUM-GI> CLIP 2: Processing packed UV data
> SUM-GI> CLIP 2: Create 1995.4DCM66 .CLIP  .   1 (UV)  on disk  1  cno   65
> SUM-GI> CLIP 2: IF  1 Ch   1 Corr 1 Pass   -0.010 to    0.100 # 
> Flagged      728
> SUM-GI> CLIP 2: IF  1 Ch   1 Corr 2 Pass   -0.010 to    0.100 # 
> Flagged     1609
> SUM-GI> CLIP 2: IF  1 Ch   1 Corr 3 Pass   -0.010 to    0.100 # 
> Flagged     1210
> SUM-GI> CLIP 2: IF  1 Ch   1 Corr 4 Pass   -0.010 to    0.100 # 
> Flagged     1214
> SUM-GI> CLIP 2: IF  2 Ch   1 Corr 1 Pass   -0.010 to    0.100 # 
> Flagged      904
> SUM-GI> CLIP 2: IF  2 Ch   1 Corr 2 Pass   -0.010 to    0.100 # 
> Flagged     1601
> SUM-GI> CLIP 2: IF  2 Ch   1 Corr 3 Pass   -0.010 to    0.100 # 
> Flagged     1256
> SUM-GI> CLIP 2: IF  2 Ch   1 Corr 4 Pass   -0.010 to    0.100 # 
> Flagged     1264
> SUM-GI> CLIP 2: Copied FQ file from vol/cno/vers  1   60   1 to  1   65   1
> SUM-GI> CLIP 2: Copied AN file from vol/cno/vers  1   60   1 to  1   65   1
> SUM-GI> CLIP 2: Copied WX file from vol/cno/vers  1   60   1 to  1   65   1
> SUM-GI> CLIP 2: Appears to have ended successfully
> SUM-GI> CLIP 2: sum-ginsburg 31DEC06 TST: Cpu=       0.2  Real=       0
> 
> AIPS 2: Image=N3627_C   (UV)         Filename=1995.4DCM66 .UVFIX2.   1
> AIPS 2: Telescope=VLA                Receiver=VLA
> AIPS 2: Observer=AS551               User #= 2566
> AIPS 2: Observ. date=17-APR-1995     Map date=22-JUN-2006
> AIPS 2: # visibilities     53385     Sort order  TB
> AIPS 2: Rand axes: UU-L-SIN  VV-L-SIN  WW-L-SIN  BASELINE  TIME1
> AIPS 2:            WEIGHT  SCALE
> AIPS 2: ----------------------------------------------------------------
> AIPS 2: Type    Pixels   Coord value     at Pixel     Coord incr   Rotat
> AIPS 2: COMPLEX      1   1.0000000E+00       1.00  1.0000000E+00    0.00
> AIPS 2: STOKES       4  -1.0000000E+00       1.00 -1.0000000E+00    0.00
> AIPS 2: FREQ         1   4.8851000E+09       1.00  5.0000000E+07    0.00
> AIPS 2: IF           2   1.0000000E+00       1.00  1.0000000E+00    0.00
> AIPS 2: RA           1    11 20 15.000       1.00       3600.000    0.00
> AIPS 2: DEC          1    12 59 30.000       1.00       3600.000    0.00
> AIPS 2: ----------------------------------------------------------------
> AIPS 2: Coordinate equinox 2000.00
> AIPS 2: Rest freq      0.000         Vel type: OPTICAL wrt YOU
> AIPS 2: Alt ref. value  0.00000E+00  wrt pixel    1.00
> AIPS 2: Maximum version number of extension files of type FQ is   1
> AIPS 2: Maximum version number of extension files of type AN is   1
> AIPS 2: Maximum version number of extension files of type WX is   1
> AIPS 2: Maximum version number of extension files of type HI is   1
> 
> 
> TVFLG RELEASE ='31DEC06 '  /********* Start 22-JUN-06  22:09:28
> TVFLG SOURCES='NGC3627         '         / Source name included
> TVFLG /TIMERANG =    0/03:02:15.45 to   37/02:22:05.50
> TVFLG  TIMERANG =   1.265678E-01  3.709867E+01  / days
> TVFLG STOKES='HALF'  SUBARRAY=  0
> TVFLG BIF=   1  EIF=   2     / Range of IF axis
> TVFLG UVRANGE =   0.00000E+00  1.00000E+10     / Range of uv kilo lambda
> TVFLG / All antennas
> TVFLG / with all antennas
> TVFLG / Included  213508 points in the grid
> TVFLG  REASON = 'TVFLG 22-JUN-06 22:09:28'
> TVFLG  CHAN = 0          / All channels
> TVFLG  IF = 0          / All IFs
> TVFLG  SUBARRAY =    1
> TVFLG  ANT =  2,24   TIMERANG=  00/03:02:15,  00/03:02:25
> TVFLG  SOURCE =    0          / All source numbers
> TVFLG  ANT =  2, 3   TIMERANG=  00/03:02:15,  00/03:03:15
> TVFLG  ANT =  3,14   TIMERANG=  00/03:02:25,  00/03:03:05
> TVFLG  ANT =  5,24   TIMERANG=  00/03:02:25,  00/03:02:45
> TVFLG  ANT =  3,10   TIMERANG=  00/03:02:25,  00/03:02:45
> TVFLG  ANT = 14,24   TIMERANG=  00/03:02:25,  00/03:02:55
> TVFLG  ANT = 10,18   TIMERANG=  00/03:02:35,  00/03:02:45
> TVFLG  ANT = 13,15   TIMERANG=  00/03:02:35,  00/03:02:55
> TVFLG  ANT =  2,24   TIMERANG=  00/03:02:35,  00/03:04:25
> TVFLG  ANT = 19,27   TIMERANG=  00/03:02:35,  00/03:02:45
> TVFLG  ANT =  2, 4   TIMERANG=  00/03:02:45,  00/03:03:15
> 
> Thanks,
> Adam
> 
> 




More information about the Daip mailing list