[daip] TVFLG/DOCAL>0 shows data with no CL entries

Michael Rupen mrupen at aoc.nrao.edu
Mon Jan 29 11:48:07 EST 2001


Dear DAIP,
  I have a standard VLA continuum data set at X-band, using 0137+331 as the
flux calibrator in A config.  In this setup one uses only the inner 6
antennas when CALIBrating 0137+331, so most of the antenna entries in the
resulting SN/CL table are blank (I've verified this with LISTR/GAIN:
 tesuque   LISTR(31DEC01)    213     29-JAN-2001  09:44:35    Page    1
 File = 20010118    .X BAND.   1 Vol = 2  Userid =  213    IF =  1
 Freq=  8.435100000 GHz   Ncor=  4   No. vis=    135384
 Polarization = R    Subarray =   1
 Listing CL table, version   2
  
  Gain amplitudes, 1000 =  100.0000
  Stokes = R    IF =  1 Freq =  8.435100000 GHz
   
     Time   Source     -- 1-- 2-- 3-- 4-- 5-- 6-- 7-- 8-- 9--10--11--12--13--14--15--16--17--18--19--20--21--22--23--24--25--26--27--28
      
      Day #   0
      03:52:40 KMB0013+     30  29  29  29      30  30  29  31  30  30  30  30  30  30  30  30  30  29  29  30  30  30  30  31  30  30  30
      03:56:30 KMB0013+     30  29  29  29      30  30  29  31  30  30  30  30  30  30  30  30  30  29  29  30  30  30  30  31  30  30  30
       
       03:56:50 0029+349     30  29  29  29      30  30  29  31  30  30  30  30  30  30  30  30  30  29  29  30  30  30  30  31  30  30  30
       03:57:40 0029+349     30  29  29  29      30  30  29  31  30  30  30  30  30  30  30  30  30  29  29  30  30  30  30  31  30  30  30
        
        04:01:00 0137+331         29              30  30  29                                                      30  30
        04:01:50 0137+331         29              30  30  29                                                      30  30
         
etc.)

  The odd part comes when I run TVFLG, applying these gains (DOCAL=1 or 2,
doesn't matter).  I expected to see only calibrated data show up on my TV --
that is, I thought I would see only 6 antennas for 0137+331.  In fact, *all*
show up.  Is this a bug or a feature?

  Thanks,

         Michael


TVFLG inputs: (from tesuque, TST, run on 29jan01)
AIPS 1: TVFLG:  Task to edit UV data using the TV display and cursor
AIPS 1: Adverbs         Values            Comments
AIPS 1: ----------------------------------------------------------------
AIPS 1: USERID        0                    User number.
AIPS 1: INNAME     '20010118    '          UV data (name).
AIPS 1: INCLASS    'X BAND'                UV data (class).
AIPS 1: INSEQ         1                    UV data (seq. #).  0 => high
AIPS 1: INDISK        2                    Disk unit #.       0 => any
AIPS 1: DOCAT        -1                    Catalog work file ?
AIPS 1: IN2SEQ        0                    Sequence number of work file
AIPS 1: IN2DISK       0                    Disk number of work file
AIPS 1: DOHIST       -1                    Record flags in history file
AIPS 1: SOURCES    *all ' '                Source list
AIPS 1: CALCODE    '*   '                  Calibrator code '    '=>all
AIPS 1: TIMERANG   *all 0                  Time range to include
AIPS 1: STOKES     '    '                  Stokes type to display
AIPS 1: SELBAND      -1                    Bandwidth to select (kHz)
AIPS 1: SELFREQ      -1                    Frequency to select (MHz)
AIPS 1: FREQID        1                    Freq. ID to select.
AIPS 1: BIF           0                    Lowest IF number 0=1
AIPS 1: EIF           0                    Highest IF number
AIPS 1: BCHAN         1                    Lowest channel number 0=>1
AIPS 1: ECHAN         0                    Highest channel number
AIPS 1: ANTENNAS   *all 0                  Antennas to include
AIPS 1: BASELINE   *all 0                  Baselines with ANTENNAS
AIPS 1: UVRANGE       0           0        UV range in kilolambda
AIPS 1: SUBARRAY      0                    Subarray, 0 => all, but the
AIPS 1:                                    task is more efficient doing
AIPS 1:                                    one at a time
AIPS 1:                                    Cal. info for input:
AIPS 1: DOCALIB       1                    If >0 calibrate data
AIPS 1:                                    = 2 calibrate weights
AIPS 1: GAINUSE       2                    CAL (CL or SN) table to apply
AIPS 1: BLVER        -1                    BL table to apply.
AIPS 1: FLAGVER       1                    Flag table version 0 => 1
AIPS 1:                                       < 0 no flagging on input
AIPS 1:                                       Used w single-source too
AIPS 1: DOBAND       -1                    If >0 apply bandpass cal.
AIPS 1:                                    Method used depends on value
AIPS 1:                                    of DOBAND (see HELP file).
AIPS 1: BPVER        -1                    Bandpass table version
AIPS 1: SMOOTH     *all 0                  Smoothing function. See
AIPS 1:                                    HELP SMOOTH for details.
AIPS 1: DPARM         0           0        Control info:
AIPS 1:               1           0        (1) 0=amp, 1=phase, 2=rms,
AIPS 1:               0           3.3333       3=rms/mean for initial
AIPS 1:            *rest 0                     display, can choose any
AIPS 1:                                        interactively later
AIPS 1:                                    (2) > 0 include autocorr data
AIPS 1:                                    (3) >0 = baseline as ant pair
AIPS 1:                                        for B as x-axis only
AIPS 1:                                    (4) >0 => divide by source
AIPS 1:                                        IPOL flux
AIPS 1:                                    (5)
AIPS 1:                                    (6) y-axis interval: give the
AIPS 1:                                        sample time in seconds.
AIPS 1:                                        default = 10 seconds.
AIPS 1:                                    (7) initial IF displayed, 0
AIPS 1:                                        => BIF, can choose BIF -
AIPS 1:                                        EIF interactively
AIPS 1:                                    (8) initial channel displayed
AIPS 1:                                        0 => BCHAN, can choose
AIPS 1:                                        BCHAN - ECHAN later
AIPS 1:                                        interactively
AIPS 1:                                    (9,10) pixrange for initial
AIPS 1:                                        TV load - can reset later
AIPS 1:                                        interactively
AIPS 1: BADDISK       2           3        Disks to avoid for scratch
AIPS 1:            *rest 0                 and for master grid file.





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