[daip] VLBAPCOR

Jim Ulvestad julvesta at aoc.nrao.edu
Fri Mar 30 16:00:39 EST 2001


Hi Amy (et al.)

I tried running the new VLBAPCOR on a scan that was missing
PC information for antenna 10 (Saint Croix).  It had worked
fine on a scan that had all the antenas, but the FRING failed
when I tried running on the scan that was missing some PC
information.  I can confirm that antenna 10 was there and
showed good fringes in POSSM.  Here are my inputs:

AIPS 1: VLBAPCOR: Procedure to correct instrumental phases
AIPS 1: Adverbs         Values            Comments
AIPS 1: ----------------------------------------------------------------
AIPS 1: INNAME     'BU020B-CBAND'          Input UV file name (name)
AIPS 1: INCLASS    'FXPOL '                Input UV file name (class)
AIPS 1: INSEQ         1                    Input UV file name (seq. #)
AIPS 1: INDISK        3                    Input UV file disk unit #
AIPS 1: TIMERANG      0           4        Time range of a calibrator
AIPS 1:               6           0         1-4 = start day,hr,min,sec
AIPS 1:               0           4         5-8 = end   day,hr,min,sec
AIPS 1:               9           0        MUST BE SPECIFIED
AIPS 1: REFANT        2                    Ref. antenna, 0=>the first
AIPS 1: CALSOUR    'J0927+3902      '      Calibrator source name;
AIPS 1:            *rest ' '               blank => any
AIPS 1: GAINUSE       4                    CL table to use; 0=>highest
AIPS 1:                                    ADVERBS FOR ANTENNAS NOT
AIPS 1:                                    CONTAINED IN PC TABLE:
AIPS 1: OPCODE     'CALP'                  'CALP' if you are missing PC
AIPS 1:                                    information for any antenna;
AIPS 1:                                    otherwise ' '
AIPS 1: ANTENNAS     10        *rest 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:


Here is what happened.

AIPS 1 13:49:34 go vlbapcor
AIPS 1 13:49:34 'RUN PCCOR'
PCCOR1 13:49:34 Task PCCOR  (release of 31DEC01) begins
PCCOR1 13:49:34 Writing to SN table   3
PCCOR1 13:49:34 Antenna 10 is not corrected: no PCAL  at the selected
scan
PCCOR1 13:49:38 Appears to have ended successfully
PCCOR1 13:49:38 hayduke      31DEC01 TST: Cpu=       3.0  Real=       4
AIPS 1 13:49:38 Resumes
AIPS 1 13:49:38 'RUN SNCOR'
SNCOR1 13:49:38 Task SNCOR  (release of 31DEC01) begins
SNCOR1 13:49:38     75 Records modified
SNCOR1 13:49:39 Appears to have ended successfully
SNCOR1 13:49:39 hayduke      31DEC01 TST: Cpu=       0.1  Real=       1
AIPS 1 13:49:39 Resumes
SNCOR1 13:49:39 Task SNCOR  (release of 31DEC01) begins
SNCOR1 13:49:39     75 Records modified
SNCOR1 13:49:39 Appears to have ended successfully
SNCOR1 13:49:39 hayduke      31DEC01 TST: Cpu=       0.0  Real=       0
AIPS 1 13:49:41 Resumes
AIPS 1 13:49:41 'RUN CLCAL'
CLCAL1 13:49:41 Task CLCAL  (release of 31DEC01) begins
CLCAL1 13:49:41 You are using a non-standard program
CLCAL1 13:49:41 Using interpolation mode 2PT
CLCAL1 13:49:41 Processing SN table    3
CLCAL1 13:49:44 SN2CL: Applying SN tables to CL table   4, writing CL
table  5
CLCAL1 13:49:48 Appears to have ended successfully
CLCAL1 13:49:48 hayduke      31DEC01 TST: Cpu=       1.8  Real=       7
AIPS 1 13:49:48 Resumes
AIPS 1 13:49:48 'RUN FRING'
FRING1 13:49:49 Task FRING  (release of 31DEC01) begins
FRING1 13:49:49 You are using a non-standard program
FRING1 13:49:49 Selecting and calibrating the data
FRING1 13:49:50  WARNING: NO DATA SELECTED
FRING1 13:49:50 Purports to die of UNNATURAL causes
FRING1 13:49:50 hayduke      31DEC01 TST: Cpu=       0.2  Real=       1
AIPS 1 13:49:51 Resumes
AIPS 1 13:49:51 RETURN CODE      1 RECEIVED: STOPPING

I looked at the inputs remaining in FRING, and it says
GAINUSE=5.  However, CL #5 is the output of the PCCOR and CLCAL
steps that didn't have anything for antenna 10, so there is
no antenna 10 in the CL table.  I think this would have worked
if the FRING had GAINUSE=4, so there's just a slight table-handling
problem.

jim



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