[daip] BL149BE: PCOR problems

[Leonia Kogan]

Yura,

As I remember Amy met such a case recently although I am not sure.
NRAO will be closed for Christmas holiday Dec 24-28 and many people 
take  a longer vacation.
So Amy is not here now.
I can give comments as a person who wrote PCCOR long time ago:

The PCCOR's comment

PCCOR1: All rows of the PC table are bad for the selected parameters

means that:

1. The timerange you have chosen for calibrator is out of the whole time interval of the PC table 
   or
2. The antennas given at the PC table rows do not belong to the antennas given at the AN table
   or
3. Number of tones (given at the header of the PS table) is less than 2
   or
4. All RE,Im of all tones given at the PC table are equal zero
   or 
5. the PCCOR's input FREQID does not match any FREQID given at the PC table rows

So examine the PC table paying attention on the items 1-5
The item 5 is especially suspicious because I do not see the input for FREQID at 
the procedure VLBAPCOR and I do not know how PCCOR receives FREQID

Good luck

LK

Yuri Y. Kovalev wrote:
> Dear colleagues,
>
> I continue to have fun reducing 512 Mbps VLBA experiment BL149BE.
> This time I write you about phase calibration procedure vlbapcor.
>
> Here are parameters I use:
> AIPS 1: VLBAPCOR: Procedure to correct instrumental phases
> AIPS 1: Adverbs     Values                 Comments
> AIPS 1: ----------------------------------------------------------------
> AIPS 1: INNAME     'BL149BE'               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: TIMERANG      0          12        Time range of a calibrator
> AIPS 1:              55          43         1-4 = start day,hr,min,sec
> AIPS 1:               0          13         5-8 = end   day,hr,min,sec
> AIPS 1:               0          23        MUST BE SPECIFIED
> AIPS 1: REFANT        5                    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         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
>
> It does not work reporting:
> *****
> PCCOR1: All rows of the PC table are bad for the selected parameters
> PCCOR1: Purports to die of UNNATURAL causes
> *****
>
> I tried MPIfR installed AIPS 31DEC07, 31DEC08, 31DEC09 with the same 
> result.
> I tried PC table which I got from the correlator AIPS friendly files 
> (after gluing) and I also tried "external" PC table from bl149becal.vlba 
> using VLOG & PCLOD. Result did not change.
>
> I wonder if you could take a look at it? Thank you.
>
> I remember that Matt had some problem applying PC table to the previous 
> MOJAVE VLBA 512 Mbps data (BL149BD), but I am not sure if it was the 
> same problem or something else. Matt?
>
> Cheers,
> Yuri.
>
> _______________________________________________
> Daip mailing list
> Daip at listmgr.cv.nrao.edu
> http://listmgr.cv.nrao.edu/mailman/listinfo/daip
>