[daip] gain missing in APCAL

[Arnaud Collioud]

Hi Amy,

I am using the up-to-date 31DEC14 version.

With ANTAB, I created one TY/GC table per subarray, which mean I used a loop over subarrays :
for i=1 to 4 ; subarray i ; tyver i+1 ; gcver i+1; go antab ; wait ; end
(TY1 and GC1 are kept by using the i+1 indices)

The other ANTAB params are :
AIPS 1: ANTAB     Task to read amplitude calibration info. into AIPS
AIPS 1: Adverbs     Values                 Comments
AIPS 1: ----------------------------------------------------------------
AIPS 1: INNAME     'RDV98_X'             Input UV file name (name)
AIPS 1: INCLASS    'UVDATA'                Input UV file name (class)
AIPS 1: INSEQ         1                    Input UV file name (seq. #)
AIPS 1: INDISK        1                    Input UV file disk unit #
AIPS 1: CALIN      'rdv98_reste_X.antabfs'              Calibration file name.
AIPS 1: SUBARRAY      1                    Subarray (0=> 1)
AIPS 1:                                    Output table versions:
AIPS 1: TYVER         2                     TY table to update
AIPS 1: GCVER         2                     GC table to update
AIPS 1: BLVER        -1                     BL table to update
AIPS 1: SPARM      *all ' '                List of stations to ignore
AIPS 1: PRTLEV        0                    Print level (0=>none;
AIPS 1:                                    1=> echo cal. file)
AIPS 1: OFFSET        0                    Increase the scan length of
AIPS 1:                                    each side, minutes

For the CALIN parameter,  you already have the antabfs file for the EVN/IVS stations. I also use an antabfs file for the VLBA stations ; it is attached to this email. 

Then, in APCAL, I created one SN table per subarray in the same way:
for i=1 to 4 ; subarray i ; tyver i+1 ; gcver i+1; go apcal ; wait ; end

AIPS 1: APCAL     Task to generate an amplitude calibration SN table
AIPS 1: Adverbs     Values                 Comments
AIPS 1: ----------------------------------------------------------------
AIPS 1: INNAME     'RDV98_X'             Input UV file name (name)
AIPS 1: INCLASS    'UVDATA'                Input UV file name (class)
AIPS 1: INSEQ         1                    Input UV file name (seq. #)
AIPS 1: INDISK        1                    Input UV file disk unit #
AIPS 1:
AIPS 1: ANTENNAS   *all 0                  Antennas to calibrate
AIPS 1: SUBARRAY      1                    Subarray 0 -> all
AIPS 1: STOKES     ' '                     Stokes type ('R','L',' ')
AIPS 1: BIF           1                    Start IF number
AIPS 1: EIF           4                    End IF number
AIPS 1: FREQID       -1                    Freq. ID to calibrate
AIPS 1: SOURCES    *all ' '                Sources to calibrate
AIPS 1: TIMERANG   *all 0                  Time range to calibrate
AIPS 1:
AIPS 1: TYVER         2                    TY table version number.
AIPS 1: GCVER         2                    GC table version number.
AIPS 1: SNVER         0                    Output SN table version.
AIPS 1:                                      0 -> highest unique
AIPS 1: OPCODE     ' '                     Opacity correction opcode:
AIPS 1:                                    '    ' -> no opacity corr.
AIPS 1:                                    'GRID','GRDR','OPAC','OPCR',
AIPS 1:                                      'LESQ' -> fit for opacity
AIPS 1: APARM      *all 0                  Calibration parameters:
AIPS 1:                                    (1) -> B factor (def. 1.0)
AIPS 1:                                    Opacity parameters:
AIPS 1:                                    (2) -> ZA limit (deg)
AIPS 1:                                    (3) >=0  use spillover
AIPS 1:                                             correction
AIPS 1:                                    (4) > 0  use all FQ in
AIPS 1:                                             opac. soln.
AIPS 1:                                    (5) Limit to sec(z) plotted
AIPS 1: SOLINT        0                    Solution interval (min)
AIPS 1:                                       0 -> use all data
AIPS 1: INVERS        0                    WX table version number.
AIPS 1:                                       0 -> use text file
AIPS 1: CALIN      *all ' '                Text file with weather info.
AIPS 1:                                       Must be ' ' if using WX
AIPS 1:                                       table (INVERS).
AIPS 1: TRECVR     *all 0                    Receiver temperatures (K);
AIPS 1:                                       in (R,L) pairs.
AIPS 1: TAU0       *all 0                  Zenith opacities (per ant.)
AIPS 1: DOFIT      *all 0                  Fit type (per ant.)
AIPS 1:                                      -1 -> no opacity correction
AIPS 1:                                       0 -> apply TRECVR only
AIPS 1:                                       1 -> solve for Trec using
AIPS 1:                                            fitting method spec.
AIPS 1:                                            in OPCODE; then apply
AIPS 1: PRTLEV        0                    Print level
AIPS 1: DOTV          1                    TV selection (<0 -> PL file)
AIPS 1: LTYPE         3                    Plot labeling
AIPS 1: GRCHAN        0                    TV Graphics channel to use

Cheers,
Arnaud

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Le 6 sept. 2014 ? 00:27, Amy Mioduszewski a ?crit :

> Hi Arnaud,
> 
> I have loaded your data run USUBA, VLBAMCAL, INDXR and ANTAB.  I have encountered the similar error as you but I suspect it has a different cause. Namely when I use ANTAB, instead of writing into the designated TY/GC tables, it replaces them.  So I think this is a separate bug from the one you are seeing (although similar message, but on ante 1, rather than 3).  Anyway, what exact inputs do you use in ANTAB for the different subarrays?
> 
> Also what version of AIPS are you running?
> 
> Amy