[daip] AIPS issue - BB332

[Tony Beasley]

All - many thanks. TB

Will admit- had not heard about VLBAUTI or VLBAFIX, will investigate. 

thanks.. Tony


> -----Original Message-----
> From: Eric Greisen [mailto:egreisen at nrao.edu]
> Sent: Wednesday, April 09, 2014 12:09 PM
> To: Craig Walker
> Cc: Tony Beasley; Jonathan Romney; daip at nrao.edu
> Subject: Re: [daip] AIPS issue - BB332
> 
> Craig Walker wrote:
> > I don't see the problem either.  I think this is one for the AIPS group
> > so I have added DAIP to this response.
> 
> The problem arises from duplicate records in the GC (and PC and TY)
> tables due to simple appending of these tables.  It is a well-known
> issue, addressed by the procedure (from VLBAUTIL) called VLBAMCAL.  That
> procedure is usually accessed via the VLBAFIX procedure.
> 
> Nonetheless, I have changed the code of APCAL to notice that records are
> simple duplicates and to ignore multiple occurrences of the very same
> data.  The MNJ in Charlottesville will update the 31DEC14 version a
> little after midnight tonight.
> 
> The APCAL fix handles this issue in this place in the GC table.  Issues
> arising elsewhere with the duplicates should be avoided with either
> VLBAMCAL or VLBAFIX.  The latter will probably make 2 data sets from the
> S and X data.
> 
> Eric Greisen