[daip] [!9052]: AIPS - VLBAPCOR Fails

David Roberts noreply at nrao.edu
Thu Sep 29 14:24:08 EDT 2016


David Roberts updated #9052
---------------------------

VLBAPCOR Fails
--------------

           Ticket ID: 9052
                 URL: https://help.nrao.edu/staff/index.php?/Tickets/Ticket/View/9052
           Full Name: David Roberts
               Email: roberts at brandeis.edu
             Creator: User
          Department: AIPS Data Reduction
       Staff (Owner): -- Unassigned --
                Type: Issue
              Status: Open
            Priority: Default
                 SLA: NRAO E2E
      Template Group: Default
             Created: 29 September 2016 06:24 PM
             Updated: 29 September 2016 06:24 PM
                 Due: 03 October 2016 06:24 PM (4d 0h 0m)
      Resolution Due: 07 October 2016 06:24 PM (8d 0h 0m)



I'm running VLBAPCOR on a VLBA dataset from July 2014 with these inputs:

-------
AIPS 1: VLBAPCOR: Procedure to correct instrumental phases
AIPS 1: Adverbs     Values                 Comments
AIPS 1: ----------------------------------------------------------------
AIPS 1: INNAME     'BR197_C1_5s'           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        2                    Input UV file disk unit #
AIPS 1: TIMERANG      0          23        Time range of a calibrator
AIPS 1:              17          10         1-4 = start day,hr,min,sec
AIPS 1:               0          23         5-8 = end   day,hr,min,sec
AIPS 1:              19           8        MUST BE SPECIFIED
AIPS 1: REFANT        1                    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       7                    CL table to use; 0=>highest
AIPS 1:                                    ADVERBS FOR ANTENNAS NOT
AIPS 1:                                    CONTAINED IN PC TABLE:
AIPS 1: INVER         0                    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).
-------

The data header says there is one PC table:

------
AIPS 1: Image=MULTI     (UV)         Filename=BR197_C1_5s .UVDATA.   1
AIPS 1: Telescope=VLBA               Receiver=VLBA
AIPS 1: Observer=BR197A              User #=  197
AIPS 1: Observ. date=03-JUL-2014     Map date=26-SEP-2016
AIPS 1: # visibilities    174096     Sort order  TB
AIPS 1: Rand axes: UU-L-SIN  VV-L-SIN  WW-L-SIN  TIME1  SUBARRAY
AIPS 1:            SOURCE  FREQSEL  INTTIM  GATEID  ANTENNA1  ANTENNA2
AIPS 1:            CORR-ID
AIPS 1: ----------------------------------------------------------------
AIPS 1: Type    Pixels   Coord value     at Pixel     Coord incr   Rotat
AIPS 1: COMPLEX      3   1.0000000E+00       1.00  1.0000000E+00    0.00
AIPS 1: STOKES       4  -1.0000000E+00       1.00 -1.0000000E+00    0.00
AIPS 1: FREQ        64   4.1280000E+09       0.75  5.0000000E+05    0.00
AIPS 1: IF           8   1.0000000E+00       1.00  1.0000000E+00    0.00
AIPS 1: RA           1    00 00 00.000       1.00       0.000000    0.00
AIPS 1: DEC          1    00 00 00.000       1.00       0.000000    0.00
AIPS 1: ----------------------------------------------------------------
AIPS 1: Coordinate equinox 2000.00
AIPS 1: Maximum version number of extension files of type HI is   1
AIPS 1: Maximum version number of extension files of type NX is   1
AIPS 1: Maximum version number of extension files of type AT is   1
AIPS 1: Maximum version number of extension files of type SN is   6
AIPS 1: Maximum version number of extension files of type IM is   1
AIPS 1: Maximum version number of extension files of type CT is   1
AIPS 1: Maximum version number of extension files of type MC is   1
AIPS 1: Maximum version number of extension files of type CL is   7
AIPS 1: Maximum version number of extension files of type GC is   1
AIPS 1: Maximum version number of extension files of type WX is   1
AIPS 1: Maximum version number of extension files of type TY is   3
AIPS 1: Maximum version number of extension files of type PC is   1
AIPS 1: Maximum version number of extension files of type FQ is   1
AIPS 1: Maximum version number of extension files of type AN is   1
AIPS 1: Maximum version number of extension files of type SU is   1
AIPS 1: Maximum version number of extension files of type CQ is   1
AIPS 1: Maximum version number of extension files of type FG is   1
AIPS 1: Keyword = 'OLDRFQ  '  value =  4.16000000D+09
AIPS 1: Keyword = 'CORRELAT'  value = 'DIFX    '

------

However, VLBAPCOR fails with this message:

---------

LOCALH> PCCOR1: localhost    31DEC16 TST: Cpu=       0.0  Real=       0
LOCALH> PCCOR1: Task PCCOR  (release of 31DEC16) begins
LOCALH> PCCOR1: PCINI: PC TABLE HAS REVISION NO.   1 EXPECTED   2
LOCALH> PCCOR1: PCINI: ERROR INITIALIZING PHASE-CAL TABLE FOR READ
LOCALH> PCCOR1: PCCIN: ERROR   1 OPENING PC TABLE
LOCALH> PCCOR1: Purports to die of UNNATURAL causes
LOCALH> PCCOR1: localhost    31DEC16 TST: Cpu=       0.0  Real=       0

---- 

What is happening and how do I correct the problem?

Thanks,

Dave




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