[daip] Re: DBCON

[Eric Greisen]

Ed Fomalont writes:
 >    How is life in Sucko.

         Getting organized, already a bit dull...

 > 
 >    A simple question:  I have four long single/source data sets corresponding
 > to the same time but with IF1 stokes rr, IF1 stokes ll, IF2 stokes rr and
 > IF2 stokes ll.  This is a multi-field experiment in which each of the
 > four parts were separately calibrated (you know, varying outlier sources).
 > I used UVSUB which forced me to the single/source file format.
 > 
 >    I would like to combine the four data sets into one, but DBCON complains
 > about mixing different stokes.  It is happy enough concatenating 
 > different frequencies.  Any suggestions of what to do?
 > 

      One choice would be to alter the coordinates so all are called
RR - this would be a bigger data set and would not allow Formal I and
V polarization.  For regular imaging it would not be much different.

DBCON is able to combine a single-pol data set with a dual-pol data
set.  You could concat 1 of these to some other data with 2
polarizations, then UVCOP keeping only the desired data.  Then concat
the rest.  This data set would be even longer than the one in which
you lied about Stokes....  You really want a merge that puts the RR
and LL back together again - good luck.

There is VBGLU, but I do not know if that will help.  It might glue
together the 2 RR and the 2 LL files however...

Eric