[daip] Problem with PCCOR

[Andrzej Marecki]

Dear All,

I get the following message from PCCOR when reducing the data produced by 
DiFX correlator:

PCCOR1 15:46:25 Number of tones <2 because 2*NIF (=16)*NPOL(= 1) exceeds
PCCOR1 15:46:25 number of available PC detectors (equaled 16)
PCCOR1 15:46:25 Purports to die of UNNATURAL causes

The data header reads as follows:

AIPS 1: Image=MULTI     (UV)         Filename=BM341       .MSORT .   1
AIPS 1: Telescope=VLBA               Receiver=VLBA
AIPS 1: Observer=BM341               User #=  340
AIPS 1: Observ. date=15-DEC-2010     Map date=26-SEP-2012
AIPS 1: # visibilities    370019     Sort order  TB
AIPS 1: Rand axes: UU-L-SIN  VV-L-SIN  WW-L-SIN  TIME1  BASELINE
AIPS 1:            SOURCE  FREQSEL  INTTIM  GATEID  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       1  -2.0000000E+00       1.00 -1.0000000E+00    0.00
AIPS 1: FREQ        16   2.2156552E+10       0.56  5.0000000E+05    0.00
AIPS 1: IF          16   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: ----------------------------------------------------------------

... and the following parameters are passed to PCCOR:

AIPS 1: PCCOR     Corrects phases using  PCAL tones data from PC table
AIPS 1: Adverbs     Values                 Comments
AIPS 1: ----------------------------------------------------------------
AIPS 1: INNAME     'BM341'                 Input UV file name (name)
AIPS 1: INCLASS    'MSORT'                 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           9        Timerange of a calibrator
AIPS 1:              27           5         1-4 = start day,hr,min,sec
AIPS 1:               0           9         5-8 = end   day,hr,min,sec
AIPS 1:              35          47        Has to be specified!!!
AIPS 1: SNVER         0                    Output SN table, 0=>new table
AIPS 1: INVER         0                    Input  PC table, 0=>last one
AIPS 1: REFANT        9                    Ref. antenna, 0=>the first
AIPS 1: SUBARRAY      0                    Subarray;  0 => all.
AIPS 1: FREQID        1                    Freq. ID to select; 0 => 1.
AIPS 1: CALSOUR    'J0927+3902'            Calibrator source name;
AIPS 1:            *rest ' '               blank => any
AIPS 1: CUTOFF        0                    Cable correction:
AIPS 1:                                    1 => switch off
AIPS 1:                                    0 => switch on
AIPS 1: BIF           0                    Lowest IF number 0=>1
AIPS 1: EIF           0                    Highest IF number 0=>NIF
AIPS 1:                                    Use BIF=EIF=0 except for
AIPS 1:                                    special cases (see help)
AIPS 1: DELCORR       0                    1 => zero MBDELY.
AIPS 1:                                    Use zero always except for
AIPS 1:                                    special cases (see help)
AIPS 1: FLDSIZE    *all 0                  Array(by IFs) of the first,
AIPS 1:                                    second tones
AIPS 1:                                    0=> the smallest and largest
AIPS 1:                                        (by frequency) tone

The PC table looks fine when viewed with SNPLT (OPTYPE='CCAL').

Thanks in advance for your help.

Best regards,

--
Andrzej

-- 
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Andrzej Marecki                | 
Torun Centre for Astronomy     |   e-mail: amr at astro.uni.torun.pl
N. Copernicus University       |   WWW:    http://www.astro.uni.torun.pl
ul. Gagarina 11                |   tel: +48 56 6113032
PL-87-100 Torun, POLAND        |   fax: +48 56 6113009
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