[daip] problem with VLBAPCOR

[Amy Mioduszewski]

Hi Matt,

Hmmmm, very odd.  The only thing that has changed in VLBAPCOR is INTERPOL='self' 
in CLCAL.  If that isn't the problem then it is PCCOR.  Could you look and see 
if your SN tables from PCCOR are different in the two versions (overlaying them 
in SNPLT, would be sufficient)?  That would give me a clue to where the bugs is.

Thanks!

Amy

Matthew L Lister wrote:
> I've noticed some unusual behavior of VLBAPCOR in the 31DEC07 and 
> 31DEC08 releases, I'm
> enclosing two possm plots for dataset BC077B (the same problem has 
> occurred in other datasets
> as well). The first one is the result of running VLBAPCOR with the 
> 31DEC05 version, the
> latter is the 31DEC08 version. Notice how the phases are not aligned 
> correctly for the
> FD-HN baseline in the 31DEC08 version (POSSM_2.PS) but are correctly 
> aligned in the 31DEC05 version (POSSM_3.PS).
> 
> Here are the inputs:
> 
> AIPS 1: VLBAPCOR: Procedure to correct instrumental phases
> AIPS 1: Adverbs     Values                 Comments
> AIPS 1: ----------------------------------------------------------------
> AIPS 1: INNAME     'BC077B'                Input UV file name (name)
> AIPS 1: INCLASS    'FQ-3'                  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: TIMERANG      0           3        Time range of a calibrator
> AIPS 1:               8           2         1-4 = start day,hr,min,sec
> AIPS 1:               0           3         5-8 = end   day,hr,min,sec
> AIPS 1:              11          58        MUST BE SPECIFIED
> AIPS 1: REFANT        2                    Ref. antenna, 0=>the first
> AIPS 1: SUBARRAY      0                    Subarray;  0 => all.
> AIPS 1: CALSOUR    *all ' '                Calibrator source name;
> AIPS 1:                                    blank => any
> AIPS 1: GAINUSE       0                    CL table to use; 0=>highest
> AIPS 1:                                    ADVERBS FOR ANTENNAS NOT
> AIPS 1:                                    CONTAINED IN PC TABLE:
> AIPS 1: INVER         1                    Input  PC table, 0=>last one
> AIPS 1: OPCODE     ' '                     'CALP' if you are missing PC
> AIPS 1:                                    information for any antenna;
> AIPS 1:                                    otherwise ' '
> AIPS 1: ANTENNAS   *all 0                  antennas for which manual
> AIPS 1:                                    phase corrections should be
> AIPS 1:                                    obtained (i.e. they are
> AIPS 1:                                    missing from the PC table or
> AIPS 1:                                    are the pcals in PC table are
> AIPS 1:                                    incorrect).
> AIPS 1:
> 
> 
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