[daip] RLDIF

[Eric Greisen]

Doug Roberts wrote:
>   Hi Eric,
> 
> I'm working with Farhad and using a POPS script that does polarization 
> calibration and I was pretty sure it used to work a year ago and now 
> doesn't.  What it does is the following;
> 
> PCAL: set CALS to our secondary [complex gain] calibrator
> 
> RLDIF: set SOURCE to our 3C286
> 
> RLDIF gives an error:
> 
>     townes> RLDIF1: Task RLDIF  (release of 31DEC11) begins
>     townes> RLDIF1: UVGET: Using flag table version   1 to edit data
>     townes> RLDIF1: CLCORPRM METHOD REQUIRES THERE TO BE ONLY 1 SOURCE
>     townes> RLDIF1: Purports to die of UNNATURAL causes
>     townes> RLDIF1: townes 31DEC11 TST: Cpu=      0.0  Real=      0 
>     IO=         1
> 
> I only have one source in RLDIF, but it still complains.  I'm using 31DEC11.

Look at your source table - PRTAB with INEXT='SU'.  There are frequently 
two or more sources names 3C286 in the new EVLA files.  That would be 
one possibility.

Eric